The above-incorporated '256, '267, and '274 applications are referred to herein as the “Parent Applications,” while the set of figures contained in each of the the Parent Applications are referred to herein as the “Parent FIGs.” (Note that for
A portion of the disclosure of this patent document (including its incorporated documents) contains material which is subject to mask work protection, *M*, PDF Solutions, Inc. The mask work owner (PDF Solutions, Inc.) has no objection to the facsimile reproduction by anyone of the patent document (including its incorporated documents) or the patent disclosure, as it appears in the Patent and Trademark Office patent file or records, but otherwise reserves all mask work rights whatsoever.
This invention relates generally to improved processes for manufacturing semiconductor wafers and chips through use of in-line measurements obtained via non-contact electrical measurements (“NCEM”), to on-chip structures configured to provide useful information via NCEM, and to implementation of NCEM structures in library compatible fill cells.
U.S. Pat. No. 5,008,727 (“Standard cell having test pad for probing and semiconductor integrated circuit device containing the standard cells”) to Katsura et al., incorporated by reference herein, discloses placement of a testing pad in a standard cell.
U.S. Pat. No. 6,091,249 A (“Method and apparatus for detecting defects in wafers”) to Graham et al., incorporated by reference herein, discloses structures and methods for testing certain defects using a non-contact (“NC”) technique.
U.S. Pat. No. 6,452,412 B1 (“Drop-in test structure and methodology for characterizing an integrated circuit process flow and topography”) to Jarvis et al., incorporated by reference herein, discloses structures and methods for testing certain defects using an NC technique.
U.S. Pat. No. 6,949,765 B2 (“Padless structure design for easy identification of bridging defects in lines by passive voltage contrast”) to Song et al., incorporated by reference herein, discloses structures and methods for testing certain defects using an NC technique.
U.S. Pat. No. 7,101,722 B1 (“In-line voltage contrast determination of tunnel oxide weakness in integrated circuit technology development”) to Wang et al., incorporated by reference herein, discloses structures and methods for testing certain defects using an NC technique.
U.S. Pat. No. 7,105,436 B2 (“Method for in-line monitoring of via/contact holes etch process based on test structures in semiconductor wafer manufacturing”) to Zhao et al., incorporated by reference herein, discloses structures and methods for testing certain defects using an NC technique.
U.S. Pat. No. 7,518,190 B2 (“Grounding front-end-of-line structures on a SOI substrate”) to Cote et al., incorporated by reference herein, discloses structures and methods for testing certain defects using an NC technique.
U.S. Pat. No. 7,930,660 B2 (“Measurement structure in a standard cell for controlling process parameters during manufacturing of an integrated circuit”), to Ruderer et al., incorporated by reference herein, describes the use of test structures in fill cells for manufacturing optimization.
U.S. Pat. No. 7,939,348 B2 (“E-beam inspection structure for leakage analysis”), to Seng et al., incorporated by reference herein, discloses structures and methods for testing certain defects using an NC technique.
U.S. Pat. No. 8,039,837 B2 (“In-line voltage contrast detection of PFET silicide encroachment”) to Patterson et al., incorporated by reference herein, discloses structures and methods for testing certain defects using an NC technique.
U.S. Pat. No. 8,339,449 B2 (“Defect monitoring in semiconductor device fabrication”), to Fong et al., incorporated by reference herein, discloses structures and methods for testing certain defects using an NC technique.
U.S. Pat. No. 8,399,266 B2 (“Test structure for detection of gap in conductive layer of multilayer gate stack”) to Mo et al., incorporated by reference herein, discloses structures and methods for testing certain defects using an NC technique.
U.S. Pat. No. 8,421,009 B2 (“Test structure for charged particle beam inspection and method for defect determination using the same”) to Xiao, incorporated by reference herein, discloses structures and methods for testing certain defects using an NC technique.
U.S. Pat. No. 8,575,955 B1 (“Apparatus and method for electrical detection and localization of shorts in metal interconnect lines”) to Brozek, incorporated by reference herein, discloses structures and methods for testing certain defects using an NC technique.
U.S. Patent Publication 20090102501 A1 (“Test structures for e-beam testing of systematic and random defects in integrated circuits”) to Guldi et al., incorporated by reference herein, discloses structures and methods for testing certain defects using an NC technique.
The invention generally involves the placement of NC-testable structures, and DOEs (Designs of Experiments) based on such structures, preferably within the “fill cells” typically used in standard cell logic regions. As used in this application, “fill cells” (or “filler cells”) refer to cells configured for placement in standard cell rows, but not configured to perform any logical or information storage function(s). Modern, standard-cell layouts commonly use such fill cells to relieve routing congestion. See, e.g., Cong, J., et al. “Optimizing routability in large-scale mixed-size placement,” ASP-DAC, 2013; and Menezes, C., et al. “Design of regular layouts to improve predictability,” Proceedings of the 6th IEEE International Caribbean Conference on Devices, Circuits and Systems, 2006. See also U.S. Pat. No. 8,504,969 (“Filler Cells for Design Optimization in a Place-and-Route System”) to Lin et al., incorporated by reference herein. As used herein “fill cells” may include structures designed to perform ancillary (i.e., not logical or storage) functions, for example, well ties and/or decoupling capacitors.
One NC measurement technique, useful in connection with certain embodiments of the invention, involves measuring or inspecting the surface of a partially processed wafer (in-line) with a scanning electron microscope (“SEM”) or other charged particle-based scanning/imaging device. As the measuring/inspecting proceeds, the SEM (or other device) induces charge on all electrically floating elements, whereas any grounded elements remain at zero potential. This voltage contrast becomes visible to the scanning/imaging device as a NCEM.
This NC measurement technique, commonly known as “voltage contrast inspection,” has been used in the semiconductor industry for many years, see, e.g., U.S. Pat. No. 6,344,750 B1 (“Voltage contrast method for semiconductor inspection using low voltage particle beam”), and exists in many different flavors—as demonstrated by the dozens of subsequent patents that cite the '750 patent as prior art.
U.S. patent application Ser. No. 14/612,841 (“Opportunistic placement of IC test structures and/or e-beam target pads in areas otherwise used for filler cells, tap cells, decap cells, scribe lines, and/or dummy fill, as well as product IC chips containing same”), filed Feb. 3, 2015, by inventors De et al., incorporated by reference herein, and owned by the assignee of the present application, discloses a number of highly efficient—and herein preferred—methods for obtaining NCEMs from the NCEM-enabled test structures utilized in the present invention. While these '841 methods represent the applicant's preferred NC measurement methods, it is applicant's intent that usage of the terms “NC measurement” or “NCEM” in this application should not be limited to these preferred methods in the absence of specific language (e.g., “selectively targeting . . . ”, “ . . . fewer than 10 pixels”) that indicates an intent to so limit a claim.
In general usage, the term Design of Experiments (DOE) or Experimental Design refers to the design of any information-gathering exercise where variation is present, whether under the full control of the experimenter or not.
Experimental Design is an established field, well known to persons skilled in the art. See NIST/SEMATECH e-Handbook of Statistical Methods, http://www.itl.nist.gov/div898/handbook/, updated Oct. 30, 2013, incorporated by reference herein.
As will be apparent to the skilled reader, the typical DOE herein relates to an experiment involving one or more semiconductor die(s) and/or wafer(s), wherein said one or more die(s) and/or wafer(s) contain multiple instances of a substantially similar test structure, at least some of which vary in terms of one or more layout-related parameters (including, but not limited to, size, spacing, offset, overlap, width, extension, run length, periodicity, density, neighborhood patterning, including underlayers) or process related parameters (including, but not limited to, dose, rate, exposure, processing time, temperature, or any tool-specifiable setting). As the person skilled in the art knows, the selection of specific parameter(s) to vary, the amount/distribution of their variation, and the number and location of test structures that express such variation will be selected based upon the goals of the experiment, the involved process, and the availability of appropriate places (e.g., fill cell locations, tap cell locations, decap cell locations, scribe line areas, etc.) to instantiate the test structures.
Preferred embodiments of the invention utilize DOEs constructed from NCEM-enabled fill cells. In accordance with certain preferred embodiments of the invention, NCEM-enabled fill cells all have some common elements (e.g., height, supply rail configuration, and gate patterning that is consistent with standard cells in the library), then vary according to the measurement type (e.g., short, open, leakage, or resistance), layer(s) involved, and/or structure(s) to be evaluated/tested. Such NCEM-enabled fill cells also generally include a pad, configured to accelerate targeted NC evaluation by, for example, determining an associated NCEM from a small number of enlarged pixels (e.g., 10 or fewer), or without creating any image at all. Such pads can be formed from a variety of low-resistance materials and configured in a variety of shapes.
In certain preferred embodiments, such NCEM-enabled fill cells may additionally include two or more mask-patterned features that define a rectangular test area, such test area being characterized by two parameters (e.g., X/Y or r/θ dimensions). Additionally, for such NCEM-enabled fill cells, an expanded test area surrounds the cell's test area, the expanded test area being defined by a predetermined expansion of each boundary of the test area, or by predetermined proportionate expansion of the test area's area. Alternatively, in the case of cells designed to measure or characterize inter-layer effects, such test areas may be characterized as “test volumes,” with one or more additional parameter(s) characterizing the layers of the defining, mask-patterned features.
For fill cells designed to measure, detect, or characterize electrical short circuit behavior (so-called, “short-configured, NCEM-enabled fill cells”), the test area may represent an intended gap between two pattern-defined features that, in the absence of a manufacturing anomaly, would be electrically isolated. Alternatively, in such short-configured, NCEM-enabled fill cells, the test area may represent an overlap between two pattern-defined features that, in the absence of a manufacturing anomaly, would be electrically isolated. A single short-configured, NCEM-enabled fill cell may contain one or multiple test areas. In the case of a NCEM-enabled fill cell with multiple test areas, each of the cell's test areas is preferably wired in parallel, and each of the cell's test areas (and preferably each of its extended test areas, too) is identically or nearly identically configured.
Fill cells designed to measure, detect, or characterize electrical leakage behavior (so-called, “leakage-configured, NCEM-enabled fill cells”) typically resemble short-configured cells. Like the short-configured cells, such leakage-configured cells may include a test area that represents an intended gap between two pattern-defined features that, in ideality, should be electrically isolated, but in reality, inevitably exhibit some amount of leakage. Alternatively, in such leakage-configured, NCEM-enabled fill cells, the test area may represent an overlap between two pattern-defined features that, in ideality, would be electrically isolated, but in reality, inevitably exhibit some amount of leakage. A single leakage-configured, NCEM-enabled fill cell may contain one, but preferably contains multiple test areas. In the case of a cell with multiple test areas, each of the cell's test areas is preferably wired in parallel, and each of the cell's test areas (and preferably each of its extended test areas, too) is identically or nearly identically configured.
For fill cells designed to measure, detect, or characterize electrical open circuit behavior (so-called, “open-configured, NCEM-enabled fill cells”), the test area typically represents an intended overlap, or extension, between two pattern-defined features that, in the absence of a manufacturing anomaly, would be electrically connected. (It may also represent a single-layer pattern, such as a snake.) A single open-configured, NCEM-enabled fill cell may contain one or multiple test areas. In the case of multiple test areas, each of the cell's test areas is preferably connected in series, and each of the cell's test areas (and preferably each of the extended test areas, too) is identically or nearly identically configured.
Fill cells designed to measure, detect, or characterize electrical resistance behavior (so-called, “resistance-configured, NCEM-enabled fill cells”) typically resemble open-configured cells. Like the open-configured cells, such resistance-configured cells may include a test area that represents an intended overlap, or extension, between two pattern-defined features that, in ideality, would be connected by a nearly zero-resistance path, but in reality, inevitably produce a measurable level of resistance. (Such test area may also represent a single-layer pattern, such as a snake.) A single resistance-configured, NCEM-enabled fill cell may contain one, but preferably contains multiple test areas. In the case of multiple test areas, each of the cell's test areas is preferably connected in series, and each of the cell's test areas (and preferably each of the extended test areas, too) is identically or nearly identically configured.
DOEs, in accordance with such preferred embodiments, comprise a collection of substantially similarly configured NCEM-enabled fill cells, in a plurality of variants. Within a given DOE, such similarly configured fill cells would typically all be configured to measure, detect, or characterize the same behavior (e.g., gate-to-gate, or control-element-to-control-element, shorts, for example), in the same structural configuration (e.g., tip-to-tip, as per
In the case of DOEs involving complex changes to nearby patterning, changes that lie within an expanded test area (an area that encompasses a predetermined expansion of the test area by, for example 50-200%, or more) and involve either the test area-defining layer(s) or any layers that overlap or lie immediately above or below the test area-defining layers, are preferably limited in number. Limiting the number of such changes to fewer than three, five, ten, twenty, or thirty “background pattern variants” facilitates analysis of data that the experiment produces.
Another way to characterize the degree of relevant patterning variation between DOE variants—in certain embodiments of the invention—involves the concept of a pattern similarity ratio (“PSR”), whose computation is pictorially depicted in
Another aspect of DOEs, in accordance with the preferred embodiments, is that they include multiple instances (e.g., 3, 5, 10, 20, 500, 100, 200, or 500+) of each NCEM-enabled fill cell variant. Furthermore, such variants are preferably distributed, either regularly or irregularly, throughout the space available for instantiation of fill cells.
Accordingly, generally speaking, and without intending to be limiting, one aspect of the invention relates to ICs that include, for example: a standard cell area that includes a mix of at least one thousand logic cells and fill cells of different widths and uniform heights, placed into at least twenty adjacent rows, with at least twenty cells placed side-by-side in each row; wherein the integrated circuit includes at least a first DOE, the first DOE comprising a plurality of similarly-configured, NCEM-enabled fill cells, wherein each NCEM-enabled fill cell comprises at least: first and second elongated conductive supply rails, formed in a connector or interconnect stack, extending across the entire width of the cell, and configured for compatibility with corresponding supply rails contained in the logic cells of the standard cell region; a NCEM pad, formed in a conductive layer, the pad being at least two times larger, in at least one dimension, than a minimum size permitted by design rules; a rectangular test area defined by selected boundaries of at least first and second distinct, mask-patterned features, the test area being characterized by two dimensional parameters; a first conductive pathway that electrically connects the first mask-patterned feature to the pad; and, a second conductive pathway that electrically connects the second mask-patterned feature to a permanently or virtually grounded structure; wherein each of the similarly-configured, NCEM-enabled fill cells in the first DOE is configured to render a first selected manufacturing failure observable as an abnormal pad-to-ground leakage or conductance, detected by VC inspection of the pad; and, wherein the similarly-configured, NCEM-enabled fill cells of the first DOE include a plurality of variants, where the variants differ in terms of their respective probability of presenting an abnormal pad-to-ground leakage or resistance as a result of the first selected manufacturing failure. Such ICs may further include: a second DOE, comprising a plurality of similarly-configured, NCEM-enabled fill cells, wherein each NCEM-enabled fill cell comprises at least: first and second elongated conductive supply rails, formed in a connector or interconnect stack, extending across the entire width of the cell, and configured for compatibility with corresponding supply rails contained in the logic cells of the standard cell region; a NCEM pad, formed in a conductive layer, the pad being at least two times larger, in at least one dimension, than a minimum size permitted by design rules; a rectangular test area defined by selected boundaries of at least first and second distinct, mask-patterned features, the test area being characterized by two dimensional parameters; a first conductive pathway that electrically connects the first mask-patterned feature to the pad; and, a second conductive pathway that electrically connects the second mask-patterned feature to a permanently or virtually grounded structure; wherein each of the similarly-configured, NCEM-enabled fill cells in the second DOE is configured to render a second selected manufacturing failure observable as an abnormal pad-to-ground leakage or conductance, detected by VC inspection of the pad, and wherein the second selected manufacturing failure is different than the first selected manufacturing failure; and, wherein the similarly-configured, NCEM-enabled fill cells of the second DOE include a plurality of variants, where the variants differ in terms of their respective probability of presenting an abnormal pad-to-ground leakage or conductance as a result of the second selected manufacturing failure. The first selected manufacturing failure may involve short or leakage defects that present as abnormally high pad-to-ground conductance or leakage, and the second selected manufacturing failure may involve open or resistance defects that present as abnormally low pad-to-ground conductance or abnormally high pad-to-ground resistance. Both the first and second selected manufacturing failures may involve layers in a connector stack region of the IC. Such ICs may further include: a third DOE, comprising a plurality of similarly-configured, NCEM-enabled fill cells, wherein each NCEM-enabled fill cell comprises at least: first and second elongated conductive supply rails, formed in a connector or interconnect stack, extending across the entire width of the cell, and configured for compatibility with corresponding supply rails contained in the logic cells of the standard cell region; a NCEM pad, formed in a conductive layer, the pad being at least two times larger, in at least one dimension, than a minimum size permitted by design rules; a rectangular test area defined by selected boundaries of at least first and second distinct, mask-patterned features, the test area being characterized by two dimensional parameters; a first conductive pathway that electrically connects the first mask-patterned feature to the pad; and, a second conductive pathway that electrically connects the second mask-patterned feature to a permanently or virtually grounded structure; wherein each of the similarly-configured NCEM-enabled fill cells in the third DOE is configured to render a third selected manufacturing failure observable as an abnormal pad-to-ground leakage, conductance or resistance, detected by VC inspection of the pad, and wherein the third selected manufacturing failure is different than the first selected manufacturing failure, and is different than the second selected manufacturing failure; and, wherein the similarly-configured NCEM-enabled fill cells of the third DOE include a plurality of variants, where the variants differ in terms of their respective probability of presenting an abnormal pad-to-ground leakage, conductance or resistance as a result of the third selected manufacturing failure. Each of the first, second, and third DOEs preferably include NCEM-enabled fill cells in at least three, five, seven, or ten variants. The NCEM-enabled fill cells of the first, second, and third DOEs are preferably irregularly distributed within the standard cell area of the IC. Each variant may differ from the other(s) only in the position, size, or shape of its first or second mask-patterned feature, or only by a single dimensional parameter that characterizes their respective test areas.
Again, generally speaking, and without intending to be limiting, another aspect of the invention relates to ICs that include, for example: a standard cell area that includes a mix of at least one thousand logic cells and fill cells of different widths and uniform heights, placed into at least twenty adjacent rows, with at least twenty cells placed side-by-side in each row; wherein the IC includes at least a first DOE, the first DOE comprising a plurality of similarly-configured, NCEM-enabled fill cells, wherein each NCEM-enabled fill cell comprises at least: first and second elongated conductive supply rails, formed in a connector or interconnect stack, extending across the entire width of the cell, and configured for compatibility with corresponding supply rails contained in the logic cells of the standard cell region; a NCEM pad, formed in a conductive layer, the pad being at least two times larger, in at least one dimension, than a minimum size permitted by design rules; a rectangular test area defined by selected boundaries of first and second distinct, mask-patterned features, the test area characterized by two dimensional parameters, the test area configured to provide electrical isolation between the first and second mask-patterned features in the absence of a first selected manufacturing failure; a first conductive pathway that electrically connects the first mask-patterned feature to the pad; and, a second conductive pathway that electrically connects the second mask-patterned feature to a permanently or virtually grounded structure; wherein each of the similarly-configured, NCEM-enabled fill cells in the first DOE is configured to render a first selected manufacturing failure observable as an abnormally high pad-to-ground conductance or leakage, detected by VC inspection of the pad; and, wherein the similarly-configured, NCEM-enabled fill cells of the first DOE include a plurality of variants, where the variants differ in terms of their respective probability of presenting an abnormally high pad-to-ground conductance or leakage as a result of the first selected manufacturing failure. In each of the NCEM-enabled fill cells of the first DOE, the first and/or second distinct, mask-patterned features may each represent either a control element, or a portion thereof, and/or a portion of a control element connector or a substrate connector, and/or a portion of a control element jumper, substrate jumper, or interconnect jumper. In each of the NCEM-enabled fill cells of the first and/or second DOE(s), the first and second distinct, mask-patterned features may appear in a tip-to-tip configuration, a tip-to-side configuration, a side-to-side configuration, a diagonal configuration, or an interlayer overlap configuration.
Again, generally speaking, and without intending to be limiting, another aspect of the invention relates to ICs that include, for example: a standard cell area that includes a mix of at least one thousand logic cells and fill cells of different widths and uniform heights, placed into at least twenty adjacent rows, with at least twenty cells placed side-by-side in each row; wherein the IC includes at least a first DOE, the first DOE comprising a plurality of similarly-configured, NCEM-enabled fill cells, wherein each NCEM-enabled fill cell comprises at least: first and second elongated conductive supply rails, formed in a connector or interconnect stack, extending across the entire width of the cell, and configured for compatibility with corresponding supply rails contained in the logic cells of the standard cell region; a NCEM pad, formed in one or more conductive layer(s), the pad being at least two times larger, in at least one dimension, than a minimum size permitted by design rules; a rectangular test area defined by selected boundaries of a plurality of mask-patterned features, the test area characterized by two dimensional parameters, the plurality of mask-patterned features including at least first and second features that are electrically connected in the absence of a first manufacturing failure; a first conductive pathway that electrically connects the first mask-patterned feature to the pad; and, a second conductive pathway that electrically connects the second mask-patterned feature to a permanently or virtually grounded structure; wherein each of the similarly-configured NCEM-enabled fill cells in the first DOE is configured to render a first selected manufacturing failure observable as an abnormally high pad-to-ground conductance or leakage, detected by VC inspection of the pad; wherein the similarly-configured NCEM-enabled fill cells of the first DOE include a plurality of variants, where the variants differ in terms of their respective probability of presenting an abnormally high pad-to-ground conductance or leakage as a result of the first selected manufacturing failure; and, wherein the similarly-configured NCEM-enabled fill cells of the first DOE are selected from the list consisting of: AA-tip-to-tip-short-configured, NCEM-enabled fill cells; AACNT-tip-to-tip-short-configured, NCEM-enabled fill cells; AACNT-AA-tip-to-tip-short-configured, NCEM-enabled fill cells; TS-tip-to-tip-short-configured, NCEM-enabled fill cells; GATE-tip-to-tip-short-configured, NCEM-enabled fill cells; GATECNT-GATE-tip-to-tip-short-configured, NCEM-enabled fill cells; GATECNT-tip-to-tip-short-configured, NCEM-enabled fill cells; GATECNT-AACNT-tip-to-tip-short-configured, NCEM-enabled fill cells; M1-tip-to-tip-short-configured, NCEM-enabled fill cells; V0-tip-to-tip-short-configured, NCEM-enabled fill cells; M1-V0-tip-to-tip-short-configured, NCEM-enabled fill cells; V1-M1-tip-to-tip-short-configured, NCEM-enabled fill cells; V1-tip-to-tip-short-configured, NCEM-enabled fill cells; M2-tip-to-tip-short-configured, NCEM-enabled fill cells; M2-V1-tip-to-tip-short-configured, NCEM-enabled fill cells; V2-M2-tip-to-tip-short-configured, NCEM-enabled fill cells; M3-tip-to-tip-short-configured, NCEM-enabled fill cells; V2-tip-to-tip-short-configured, NCEM-enabled fill cells; M3-V2-tip-to-tip-short-configured, NCEM-enabled fill cells; AA-tip-to-side-short-configured, NCEM-enabled fill cells; AACNT-tip-to-side-short-configured, NCEM-enabled fill cells; AACNT-AA-tip-to-side-short-configured, NCEM-enabled fill cells; GATE-AA-tip-to-side-short-configured, NCEM-enabled fill cells; GATECNT-GATE-tip-to-side-short-configured, NCEM-enabled fill cells; GATECNT-tip-to-side-short-configured, NCEM-enabled fill cells; TS-GATECNT-tip-to-side-short-configured, NCEM-enabled fill cells; GATECNT-AACNT-tip-to-side-short-configured, NCEM-enabled fill cells; M1-tip-to-side-short-configured, NCEM-enabled fill cells; V0-tip-to-side-short-configured, NCEM-enabled fill cells; M1-V0-tip-to-side-short-configured, NCEM-enabled fill cells; V1-M1-tip-to-side-short-configured, NCEM-enabled fill cells; V1-tip-to-side-short-configured, NCEM-enabled fill cells; M2-tip-to-side-short-configured, NCEM-enabled fill cells; M2-V1-tip-to-side-short-configured, NCEM-enabled fill cells; V2-M2-tip-to-side-short-configured, NCEM-enabled fill cells; M3-tip-to-side-short-configured, NCEM-enabled fill cells; V2-tip-to-side-short-configured, NCEM-enabled fill cells; M3-V2-tip-to-side-short-configured, NCEM-enabled fill cells; AA-side-to-side-short-configured, NCEM-enabled fill cells; AACNT-side-to-side-short-configured, NCEM-enabled fill cells; AACNT-AA-side-to-side-short-configured, NCEM-enabled fill cells; AACNT-GATE-side-to-side-short-configured, NCEM-enabled fill cells; GATE-side-to-side-short-configured, NCEM-enabled fill cells; GATECNT-GATE-side-to-side-short-configured, NCEM-enabled fill cells; TS-GATE-side-to-side-short-configured, NCEM-enabled fill cells; GATECNT-side-to-side-short-configured, NCEM-enabled fill cells; GATECNT-AACNT-side-to-side-short-configured, NCEM-enabled fill cells; M1-side-to-side-short-configured, NCEM-enabled fill cells; V0-side-to-side-short-configured, NCEM-enabled fill cells; M1-V0-side-to-side-short-configured, NCEM-enabled fill cells; V1-M1-side-to-side-short-configured, NCEM-enabled fill cells; V1-side-to-side-short-configured, NCEM-enabled fill cells; M2-side-to-side-short-configured, NCEM-enabled fill cells; M2-V1-side-to-side-short-configured, NCEM-enabled fill cells; V2-M2-side-to-side-short-configured, NCEM-enabled fill cells; M3-side-to-side-short-configured, NCEM-enabled fill cells; V2-side-to-side-short-configured, NCEM-enabled fill cells; M3-V2-side-to-side-short-configured, NCEM-enabled fill cells; AA-L-shape-interlayer-short-configured, NCEM-enabled fill cells; AACNT-L-shape-interlayer-short-configured, NCEM-enabled fill cells; AACNT-AA-L-shape-interlayer-short-configured, NCEM-enabled fill cells; GATE-AA-L-shape-interlayer-short-configured, NCEM-enabled fill cells; GATE-TS-L-shape-interlayer-short-configured, NCEM-enabled fill cells; GATECNT-GATE-L-shape-interlayer-short-configured, NCEM-enabled fill cells; GATECNT-AA-L-shape-interlayer-short-configured, NCEM-enabled fill cells; GATECNT-TS-L-shape-interlayer-short-configured, NCEM-enabled fill cells; GATECNT-AACNT-L-shape-interlayer-short-configured, NCEM-enabled fill cells; V0-AA-L-shape-interlayer-short-configured, NCEM-enabled fill cells; V0-TS-L-shape-interlayer-short-configured, NCEM-enabled fill cells; V0-AACNT-L-shape-interlayer-short-configured, NCEM-enabled fill cells; V0-GATE-L-shape-interlayer-short-configured, NCEM-enabled fill cells; V0-GATECNT-L-shape-interlayer-short-configured, NCEM-enabled fill cells; M1-AACNT-L-shape-interlayer-short-configured, NCEM-enabled fill cells; M1-GATECNT-L-shape-interlayer-short-configured, NCEM-enabled fill cells; M1-V0-L-shape-interlayer-short-configured, NCEM-enabled fill cells; V1-M1-L-shape-interlayer-short-configured, NCEM-enabled fill cells; V1-V0-L-shape-interlayer-short-configured, NCEM-enabled fill cells; M2-M1-L-shape-interlayer-short-configured, NCEM-enabled fill cells; M2-V1-L-shape-interlayer-short-configured, NCEM-enabled fill cells; V2-V1-L-shape-interlayer-short-configured, NCEM-enabled fill cells; V2-M2-L-shape-interlayer-short-configured, NCEM-enabled fill cells; M3-M2-L-shape-interlayer-short-configured, NCEM-enabled fill cells; M3-V2-L-shape-interlayer-short-configured, NCEM-enabled fill cells; AA-diagonal-short-configured, NCEM-enabled fill cells; TS-diagonal-short-configured, NCEM-enabled fill cells; AACNT-diagonal-short-configured, NCEM-enabled fill cells; AACNT-AA-diagonal-short-configured, NCEM-enabled fill cells; GATE-diagonal-short-configured, NCEM-enabled fill cells; GATE-AACNT-diagonal-short-configured, NCEM-enabled fill cells; GATECNT-GATE-diagonal-short-configured, NCEM-enabled fill cells; GATECNT-diagonal-short-configured, NCEM-enabled fill cells; GATECNT-AACNT-diagonal-short-configured, NCEM-enabled fill cells; M1-diagonal-short-configured, NCEM-enabled fill cells; V0-diagonal-short-configured, NCEM-enabled fill cells; M1-V0-diagonal-short-configured, NCEM-enabled fill cells; V1-M1-diagonal-short-configured, NCEM-enabled fill cells; V1-diagonal-short-configured, NCEM-enabled fill cells; M2-diagonal-short-configured, NCEM-enabled fill cells; M2-V1-diagonal-short-configured, NCEM-enabled fill cells; M3-diagonal-short-configured, NCEM-enabled fill cells; V2-M2-diagonal-short-configured, NCEM-enabled fill cells; V2-diagonal-short-configured, NCEM-enabled fill cells; M3-V2-diagonal-short-configured, NCEM-enabled fill cells; AA-corner-short-configured, NCEM-enabled fill cells; AACNT-corner-short-configured, NCEM-enabled fill cells; AACNT-AA-corner-short-configured, NCEM-enabled fill cells; GATE-corner-short-configured, NCEM-enabled fill cells; GATECNT-GATE-corner-short-configured, NCEM-enabled fill cells; GATECNT-TS-corner-short-configured, NCEM-enabled fill cells; GATECNT-corner-short-configured, NCEM-enabled fill cells; GATECNT-AACNT-corner-short-configured, NCEM-enabled fill cells; M1-corner-short-configured, NCEM-enabled fill cells; V0-corner-short-configured, NCEM-enabled fill cells; M1-V0-corner-short-configured, NCEM-enabled fill cells; V1-M1-corner-short-configured, NCEM-enabled fill cells; V1-corner-short-configured, NCEM-enabled fill cells; M2-corner-short-configured, NCEM-enabled fill cells; M2-V1-corner-short-configured, NCEM-enabled fill cells; M3-corner-short-configured, NCEM-enabled fill cells; V2-M2-corner-short-configured, NCEM-enabled fill cells; V2-corner-short-configured, NCEM-enabled fill cells; M3-V2-corner-short-configured, NCEM-enabled fill cells; GATE-AA-interlayer-overlap-short-configured, NCEM-enabled fill cells; GATE-TS-interlayer-overlap-short-configured, NCEM-enabled fill cells; GATE-AACNT-interlayer-overlap-short-configured, NCEM-enabled fill cells; GATECNT-TS-interlayer-overlap-short-configured, NCEM-enabled fill cells; GATECNT-AA-interlayer-overlap-short-configured, NCEM-enabled fill cells; V0-AA-interlayer-overlap-short-configured, NCEM-enabled fill cells; V0-AACNT-interlayer-overlap-short-configured, NCEM-enabled fill cells; V0-TS-interlayer-overlap-short-configured, NCEM-enabled fill cells; V0-GATE-interlayer-overlap-short-configured, NCEM-enabled fill cells; M1-GATECNT-interlayer-overlap-short-configured, NCEM-enabled fill cells; M1-AACNT-interlayer-overlap-short-configured, NCEM-enabled fill cells; V1-V0-interlayer-overlap-short-configured, NCEM-enabled fill cells; M2-M1-interlayer-overlap-short-configured, NCEM-enabled fill cells; V2-V1-interlayer-overlap-short-configured, NCEM-enabled fill cells; M3-M2-interlayer-overlap-short-configured, NCEM-enabled fill cells; V0-GATECNT-via-chamfer-short-configured, NCEM-enabled fill cells; V0-AACNT-via-chamfer-short-configured, NCEM-enabled fill cells; V1-M1-via-chamfer-short-configured, NCEM-enabled fill cells; V2-M2-via-chamfer-short-configured, NCEM-enabled fill cells; V0-merged-via-short-configured, NCEM-enabled fill cells; V1-merged-via-short-configured, NCEM-enabled fill cells; and, V2-merged-via-short-configured, NCEM-enabled fill cells; a second DOE, comprising a plurality of similarly-configured, NCEM-enabled fill cells, wherein each NCEM-enabled fill cell comprises at least: first and second elongated conductive supply rails, formed in a connector or interconnect stack, extending across the entire width of the cell, and configured for compatibility with corresponding supply rails contained in the logic cells of the standard cell region; a NCEM pad, formed in a conductive layer, the pad being at least two times larger, in at least one dimension, than a minimum size permitted by design rules; a rectangular test area defined by selected boundaries of at least first and second distinct, mask-patterned features, the test area being characterized by two dimensional parameters; a first conductive pathway that electrically connects the first mask-patterned feature to the pad; and, a second conductive pathway that electrically connects the second mask-patterned feature to a permanently or virtually grounded structure; wherein each of the similarly-configured, NCEM-enabled fill cells in the second DOE is configured to render a second selected manufacturing failure observable as an abnormally low pad-to-ground conductance or abnormally high pad-to-ground resistance, detected by VC inspection of the pad; and, wherein the similarly-configured, NCEM-enabled fill cells of the second DOE include a plurality of variants, where the variants differ in terms of their respective probability of presenting an abnormally low pad-to-ground conductance or abnormally high pad-to-ground resistance as a result of the second selected manufacturing failure; and, wherein the similarly-configured NCEM-enabled fill cells of the second DOE are selected from the list consisting of: AA-snake-open-configured, NCEM-enabled fill cells; TS-snake-open-configured, NCEM-enabled fill cells; AACNT-snake-open-configured, NCEM-enabled fill cells; GATE-snake-open-configured, NCEM-enabled fill cells; GATECNT-snake-open-configured, NCEM-enabled fill cells; V0-snake-open-configured, NCEM-enabled fill cells; M1-snake-open-configured, NCEM-enabled fill cells; V1-snake-open-configured, NCEM-enabled fill cells; M2-snake-open-configured, NCEM-enabled fill cells; V2-snake-open-configured, NCEM-enabled fill cells; M3-snake-open-configured, NCEM-enabled fill cells; AA-stitch-open-configured, NCEM-enabled fill cells; TS-stitch-open-configured, NCEM-enabled fill cells; AACNT-stitch-open-configured, NCEM-enabled fill cells; GATECNT-stitch-open-configured, NCEM-enabled fill cells; V0-stitch-open-configured, NCEM-enabled fill cells; M1-stitch-open-configured, NCEM-enabled fill cells; V1-stitch-open-configured, NCEM-enabled fill cells; M2-stitch-open-configured, NCEM-enabled fill cells; V2-stitch-open-configured, NCEM-enabled fill cells; M3-stitch-open-configured, NCEM-enabled fill cells; AACNT-TS-via-open-configured, NCEM-enabled fill cells; AACNT-AA-via-open-configured, NCEM-enabled fill cells; TS-AA-via-open-configured, NCEM-enabled fill cells; GATECNT-GATE-via-open, NCEM-enabled fill cells; V0-GATECNT-via-open-configured, NCEM-enabled fill cells; V0-AA-via-open-configured, NCEM-enabled fill cells; V0-TS-via-open-configured, NCEM-enabled fill cells; V0-AACNT-via-open-configured, NCEM-enabled fill cells; V0-GATE-via-open-configured, NCEM-enabled fill cells; V0-via-open-configured, NCEM-enabled fill cells; M1-V0-via-open-configured, NCEM-enabled fill cells; V1-M1-via-open-configured, NCEM-enabled fill cells; V1-M2-via-open-configured, NCEM-enabled fill cells; M1-GATECNT-via-open-configured, NCEM-enabled fill cells; M1-AANCT-via-open-configured, NCEM-enabled fill cells; V2-M2-via-open-configured, NCEM-enabled fill cells; V2-M3-via-open-configured, NCEM-enabled fill cells; M1-metal-island-open-configured, NCEM-enabled fill cells; M2-metal-island-open-configured, NCEM-enabled fill cells; M3-metal-island-open-configured, NCEM-enabled fill cells; V0-merged-via-open-configured, NCEM-enabled fill cells; V0-AACNT-merged-via-open-configured, NCEM-enabled fill cells; V0-GATECNT-merged-via-open-configured, NCEM-enabled fill cells; V1-merged-via-open-configured, NCEM-enabled fill cells; V2-merged-via-open-configured, NCEM-enabled fill cells; V1-M1-merged-via-open-configured, NCEM-enabled fill cells; V2-M2-merged-via-open-configured, NCEM-enabled fill cells.
Again, generally speaking, and without intending to be limiting, another aspect of the invention relates methods for making ICs that include, for example: (a) performing initial processing steps on a semiconductor wafer, the initial processing steps including: patterning a standard cell area that includes a mix of at least one thousand logic cells and fill cells of different widths and uniform heights, placed into at least twenty adjacent rows, with at least twenty cells placed side-by-side in each row; and, patterning a first DOE by instantiating a plurality of similarly-configured, NCEM-enabled fill cells in at least two variants, the NCEM-enabled fill cells configured for compatibility with logic cells in the standard cell area, each of the cells in the first DOE configured to enable evaluation of a first manufacturing failure by voltage contrast examination of a NCEM of a pad contained in the cell, the variants exhibiting different NCEM sensitivity to the first manufacturing failure; (b) determining a presence or absence of the first manufacturing failure by: performing a voltage contrast examination of NCEM-enabled fill cells in the first DOE; and, determining whether NCEMs of pads contained in the NCEM-enabled fill cells of the first DOE represent instance(s) of the first manufacturing failure and, if so, determining whether different cell variants exhibit a different prevalence of the first manufacturing failure; and, (c) based, at least in part, on results from step (b), selectively performing additional processing, metrology or inspection steps on the wafer, and/or on other wafer(s) currently being manufactured using a process flow(s) relevant to the observed first manufacturing failure. Step (a) may further involve: patterning a second DOE by instantiating a plurality of similarly-configured NCEM-enabled fill cells in at least two variants, the NCEM-enabled fill cells configured for compatibility with logic cells in the standard cell area and fill cells in the first DOE, each of the cells in the second DOE configured to enable evaluation of a second manufacturing failure, different from the first manufacturing failure, by voltage contrast examination of a NCEM of a pad contained in the cell, the variants exhibiting different NCEM sensitivity to the second manufacturing failure; and wherein step (b) further comprises: performing a voltage contrast examination of NCEM-enabled fill cells in the second DOE; and, determining whether NCEMs of pads contained in the NCEM-enabled fill cells of the second DOE represent instance(s) of the second manufacturing failure and, if so, determining whether different cell variants exhibit a different prevalence of the second manufacturing failure. Step (a) may further involve: patterning a third DOE by instantiating a plurality of similarly-configured NCEM-enabled fill cells in at least two variants, the NCEM-enabled fill cells configured for compatibility with logic cells in the standard cell area and fill cells in the first and second DOEs, each of the cells in the third DOE configured to enable evaluation of a third manufacturing failure, different from the first and second manufacturing failures, by voltage contrast examination of a NCEM of a pad contained in the cell, the variants exhibiting different NCEM sensitivity to the third manufacturing failure; and wherein step (b) further comprises: performing a voltage contrast examination of NCEM-enabled fill cells in the third DOE; and, determining whether NCEMs of pads contained in the NCEM-enabled fill cells of the third DOE represent instance(s) of the third manufacturing failure and, if so, determining whether different cell variants exhibit a different prevalence of the third manufacturing failure. At least one of the first, second, or third manufacturing failures preferably involves unintended shorts or leakages, and at least one of the first, second, or third manufacturing failures preferably involves unintended opens or excessive resistances. Instantiating the NCEM-enabled fill cells preferably comprises distributing the cells irregularly within the standard cell area. Within each of the DOEs, each variant may differ from the other(s) only in the position, size, or shape of a single mask-patterned feature. At least one of the first, second, or third manufacturing failures may involve unintended shorts between structures in a tip-to-tip configuration, or unintended shorts between structures in a tip-to-side configuration, or unintended shorts between structures in a side-to-side configuration, or unintended shorts between structures in a diagonal configuration, or unintended shorts between structures in an interlayer overlap configuration, or unintended interlayer shorts or leakages between structures in a corner configuration, unintended opens in snake-shaped structures, unintended opens in stitched structures, unintended opens in via-connected structures. Each of the first, second, and third DOEs preferably includes NCEM-enabled fill cells in at least three, five, seven, 11, 21, or more variants. Each of the first, second, and third DOEs may consist of cells selected from the list of: AA-tip-to-tip-short-configured, NCEM-enabled fill cells; AACNT-tip-to-tip-short-configured, NCEM-enabled fill cells; AACNT-AA-tip-to-tip-short-configured, NCEM-enabled fill cells; TS-tip-to-tip-short-configured, NCEM-enabled fill cells; GATE-tip-to-tip-short-configured, NCEM-enabled fill cells; GATECNT-GATE-tip-to-tip-short-configured, NCEM-enabled fill cells; GATECNT-tip-to-tip-short-configured, NCEM-enabled fill cells; GATECNT-AACNT-tip-to-tip-short-configured, NCEM-enabled fill cells; M1-tip-to-tip-short-configured, NCEM-enabled fill cells; V0-tip-to-tip-short-configured, NCEM-enabled fill cells; M1-V0-tip-to-tip-short-configured, NCEM-enabled fill cells; V1-M1-tip-to-tip-short-configured, NCEM-enabled fill cells; V1-tip-to-tip-short-configured, NCEM-enabled fill cells; M2-tip-to-tip-short-configured, NCEM-enabled fill cells; M2-V1-tip-to-tip-short-configured, NCEM-enabled fill cells; V2-M2-tip-to-tip-short-configured, NCEM-enabled fill cells; M3-tip-to-tip-short-configured, NCEM-enabled fill cells; V2-tip-to-tip-short-configured, NCEM-enabled fill cells; M3-V2-tip-to-tip-short-configured, NCEM-enabled fill cells; AA-tip-to-side-short-configured, NCEM-enabled fill cells; AACNT-tip-to-side-short-configured, NCEM-enabled fill cells; AACNT-AA-tip-to-side-short-configured, NCEM-enabled fill cells; GATE-AA-tip-to-side-short-configured, NCEM-enabled fill cells; GATECNT-GATE-tip-to-side-short-configured, NCEM-enabled fill cells; GATECNT-tip-to-side-short-configured, NCEM-enabled fill cells; TS-GATECNT-tip-to-side-short-configured, NCEM-enabled fill cells; GATECNT-AACNT-tip-to-side-short-configured, NCEM-enabled fill cells; M1-tip-to-side-short-configured, NCEM-enabled fill cells; V0-tip-to-side-short-configured, NCEM-enabled fill cells; M1-V0-tip-to-side-short-configured, NCEM-enabled fill cells; V1-M1-tip-to-side-short-configured, NCEM-enabled fill cells; V1-tip-to-side-short-configured, NCEM-enabled fill cells; M2-tip-to-side-short-configured, NCEM-enabled fill cells; M2-V1-tip-to-side-short-configured, NCEM-enabled fill cells; V2-M2-tip-to-side-short-configured, NCEM-enabled fill cells; M3-tip-to-side-short-configured, NCEM-enabled fill cells; V2-tip-to-side-short-configured, NCEM-enabled fill cells; M3-V2-tip-to-side-short-configured, NCEM-enabled fill cells; AA-side-to-side-short-configured, NCEM-enabled fill cells; AACNT-side-to-side-short-configured, NCEM-enabled fill cells; AACNT-AA-side-to-side-short-configured, NCEM-enabled fill cells; AACNT-GATE-side-to-side-short-configured, NCEM-enabled fill cells; GATE-side-to-side-short-configured, NCEM-enabled fill cells; GATECNT-GATE-side-to-side-short-configured, NCEM-enabled fill cells; TS-GATE-side-to-side-short-configured, NCEM-enabled fill cells; GATECNT-side-to-side-short-configured, NCEM-enabled fill cells; GATECNT-AACNT-side-to-side-short-configured, NCEM-enabled fill cells; M1-side-to-side-short-configured, NCEM-enabled fill cells; V0-side-to-side-short-configured, NCEM-enabled fill cells; M1-V0-side-to-side-short-configured, NCEM-enabled fill cells; V1-M1-side-to-side-short-configured, NCEM-enabled fill cells; V1-side-to-side-short-configured, NCEM-enabled fill cells; M2-side-to-side-short-configured, NCEM-enabled fill cells; M2-V1-side-to-side-short-configured, NCEM-enabled fill cells; V2-M2-side-to-side-short-configured, NCEM-enabled fill cells; M3-side-to-side-short-configured, NCEM-enabled fill cells; V2-side-to-side-short-configured, NCEM-enabled fill cells; M3-V2-side-to-side-short-configured, NCEM-enabled fill cells; AA-L-shape-interlayer-short-configured, NCEM-enabled fill cells; AACNT-L-shape-interlayer-short-configured, NCEM-enabled fill cells; AACNT-AA-L-shape-interlayer-short-configured, NCEM-enabled fill cells; GATE-AA-L-shape-interlayer-short-configured, NCEM-enabled fill cells; GATE-TS-L-shape-interlayer-short-configured, NCEM-enabled fill cells; GATECNT-GATE-L-shape-interlayer-short-configured, NCEM-enabled fill cells; GATECNT-AA-L-shape-interlayer-short-configured, NCEM-enabled fill cells; GATECNT-TS-L-shape-interlayer-short-configured, NCEM-enabled fill cells; GATECNT-AACNT-L-shape-interlayer-short-configured, NCEM-enabled fill cells; V0-AA-L-shape-interlayer-short-configured, NCEM-enabled fill cells; V0-TS-L-shape-interlayer-short-configured, NCEM-enabled fill cells; V0-AACNT-L-shape-interlayer-short-configured, NCEM-enabled fill cells; V0-GATE-L-shape-interlayer-short-configured, NCEM-enabled fill cells; V0-GATECNT-L-shape-interlayer-short-configured, NCEM-enabled fill cells; M1-AACNT-L-shape-interlayer-short-configured, NCEM-enabled fill cells; M1-GATECNT-L-shape-interlayer-short-configured, NCEM-enabled fill cells; M1-V0-L-shape-interlayer-short-configured, NCEM-enabled fill cells; V1-M1-L-shape-interlayer-short-configured, NCEM-enabled fill cells; V1-V0-L-shape-interlayer-short-configured, NCEM-enabled fill cells; M2-M1-L-shape-interlayer-short-configured, NCEM-enabled fill cells; M2-V1-L-shape-interlayer-short-configured, NCEM-enabled fill cells; V2-V1-L-shape-interlayer-short-configured, NCEM-enabled fill cells; V2-M2-L-shape-interlayer-short-configured, NCEM-enabled fill cells; M3-M2-L-shape-interlayer-short-configured, NCEM-enabled fill cells; M3-V2-L-shape-interlayer-short-configured, NCEM-enabled fill cells; AA-diagonal-short-configured, NCEM-enabled fill cells; TS-diagonal-short-configured, NCEM-enabled fill cells; AACNT-diagonal-short-configured, NCEM-enabled fill cells; AACNT-AA-diagonal-short-configured, NCEM-enabled fill cells; GATE-diagonal-short-configured, NCEM-enabled fill cells; GATE-AACNT-diagonal-short-configured, NCEM-enabled fill cells; GATECNT-GATE-diagonal-short-configured, NCEM-enabled fill cells; GATECNT-diagonal-short-configured, NCEM-enabled fill cells; GATECNT-AACNT-diagonal-short-configured, NCEM-enabled fill cells; M1-diagonal-short-configured, NCEM-enabled fill cells; V0-diagonal-short-configured, NCEM-enabled fill cells; M1-V0-diagonal-short-configured, NCEM-enabled fill cells; V1-M1-diagonal-short-configured, NCEM-enabled fill cells; V1-diagonal-short-configured, NCEM-enabled fill cells; M2-diagonal-short-configured, NCEM-enabled fill cells; M2-V1-diagonal-short-configured, NCEM-enabled fill cells; M3-diagonal-short-configured, NCEM-enabled fill cells; V2-M2-diagonal-short-configured, NCEM-enabled fill cells; V2-diagonal-short-configured, NCEM-enabled fill cells; M3-V2-diagonal-short-configured, NCEM-enabled fill cells; AA-corner-short-configured, NCEM-enabled fill cells; AACNT-corner-short-configured, NCEM-enabled fill cells; AACNT-AA-corner-short-configured, NCEM-enabled fill cells; GATE-corner-short-configured, NCEM-enabled fill cells; GATECNT-GATE-corner-short-configured, NCEM-enabled fill cells; GATECNT-TS-corner-short-configured, NCEM-enabled fill cells; GATECNT-corner-short-configured, NCEM-enabled fill cells; GATECNT-AACNT-corner-short-configured, NCEM-enabled fill cells; M1-corner-short-configured, NCEM-enabled fill cells; V0-corner-short-configured, NCEM-enabled fill cells; M1-V0-corner-short-configured, NCEM-enabled fill cells; V1-M1-corner-short-configured, NCEM-enabled fill cells; V1-corner-short-configured, NCEM-enabled fill cells; M2-corner-short-configured, NCEM-enabled fill cells; M2-V1-corner-short-configured, NCEM-enabled fill cells; M3-corner-short-configured, NCEM-enabled fill cells; V2-M2-corner-short-configured, NCEM-enabled fill cells; V2-corner-short-configured, NCEM-enabled fill cells; M3-V2-corner-short-configured, NCEM-enabled fill cells; GATE-AA-interlayer-overlap-short-configured, NCEM-enabled fill cells; GATE-AACNT-interlayer-overlap-short-configured, NCEM-enabled fill cells; GATE-TS-interlayer-overlap-short-configured, NCEM-enabled fill cells; GATECNT-TS-interlayer-overlap-short-configured, NCEM-enabled fill cells; GATECNT-AA-interlayer-overlap-short-configured, NCEM-enabled fill cells; V0-AA-interlayer-overlap-short-configured, NCEM-enabled fill cells; V0-AACNT-interlayer-overlap-short-configured, NCEM-enabled fill cells; V0-TS-interlayer-overlap-short-configured, NCEM-enabled fill cells; V0-GATE-interlayer-overlap-short-configured, NCEM-enabled fill cells; M1-GATECNT-interlayer-overlap-short-configured, NCEM-enabled fill cells; M1-AACNT-interlayer-overlap-short-configured, NCEM-enabled fill cells; V1-V0-interlayer-overlap-short-configured, NCEM-enabled fill cells; M2-M1-interlayer-overlap-short-configured, NCEM-enabled fill cells; V2-V1-interlayer-overlap-short-configured, NCEM-enabled fill cells; M3-M2-interlayer-overlap-short-configured, NCEM-enabled fill cells; V0-GATECNT-via-chamfer-short-configured, NCEM-enabled fill cells; V0-AACNT-via-chamfer-short-configured, NCEM-enabled fill cells; V1-M1-via-chamfer-short-configured, NCEM-enabled fill cells; V2-M2-via-chamfer-short-configured, NCEM-enabled fill cells; V0-merged-via-short-configured, NCEM-enabled fill cells; V1-merged-via-short-configured, NCEM-enabled fill cells; V2-merged-via-short-configured, NCEM-enabled fill cells; AA-snake-open-configured, NCEM-enabled fill cells; TS-snake-open-configured, NCEM-enabled fill cells; AACNT-snake-open-configured, NCEM-enabled fill cells; GATE-snake-open-configured, NCEM-enabled fill cells; GATECNT-snake-open-configured, NCEM-enabled fill cells; V0-snake-open-configured, NCEM-enabled fill cells; M1-snake-open-configured, NCEM-enabled fill cells; V1-snake-open-configured, NCEM-enabled fill cells; M2-snake-open-configured, NCEM-enabled fill cells; V2-snake-open-configured, NCEM-enabled fill cells; M3-snake-open-configured, NCEM-enabled fill cells; AA-stitch-open-configured, NCEM-enabled fill cells; TS-stitch-open-configured, NCEM-enabled fill cells; AACNT-stitch-open-configured, NCEM-enabled fill cells; GATECNT-stitch-open-configured, NCEM-enabled fill cells; V0-stitch-open-configured, NCEM-enabled fill cells; M1-stitch-open-configured, NCEM-enabled fill cells; V1-stitch-open-configured, NCEM-enabled fill cells; M2-stitch-open-configured, NCEM-enabled fill cells; V2-stitch-open-configured, NCEM-enabled fill cells; M3-stitch-open-configured, NCEM-enabled fill cells; AACNT-TS-via-open-configured, NCEM-enabled fill cells; AACNT-AA-via-open-configured, NCEM-enabled fill cells; TS-AA-via-open-configured, NCEM-enabled fill cells; GATECNT-GATE-via-open, NCEM-enabled fill cells; V0-GATECNT-via-open-configured, NCEM-enabled fill cells; V0-AA-via-open-configured, NCEM-enabled fill cells; V0-TS-via-open-configured, NCEM-enabled fill cells; V0-AACNT-via-open-configured, NCEM-enabled fill cells; V0-GATE-via-open-configured, NCEM-enabled fill cells; V0-via-open-configured, NCEM-enabled fill cells; M1-V0-via-open-configured, NCEM-enabled fill cells; V1-M1-via-open-configured, NCEM-enabled fill cells; V1-M2-via-open-configured, NCEM-enabled fill cells; M1-GATECNT-via-open-configured, NCEM-enabled fill cells; M1-AANCT-via-open-configured, NCEM-enabled fill cells; V2-M2-via-open-configured, NCEM-enabled fill cells; V2-M3-via-open-configured, NCEM-enabled fill cells; M1-metal-island-open-configured, NCEM-enabled fill cells; M2-metal-island-open-configured, NCEM-enabled fill cells; M3-metal-island-open-configured, NCEM-enabled fill cells; V0-merged-via-open-configured, NCEM-enabled fill cells; V0-AACNT-merged-via-open-configured, NCEM-enabled fill cells; V0-GATECNT-merged-via-open-configured, NCEM-enabled fill cells; V1-merged-via-open-configured, NCEM-enabled fill cells; V2-merged-via-open-configured, NCEM-enabled fill cells; V1-M1-merged-via-open-configured, NCEM-enabled fill cells; V2-M2-merged-via-open-configured, NCEM-enabled fill cells.
Again, generally speaking, and without intending to be limiting, another aspect of the invention relates to methods for making ICs that include, for example: (a) performing initial processing steps on a first semiconductor wafer, the initial processing steps including, at least: patterning a first DOE by instantiating a plurality of similarly-configured NCEM-enabled fill cells in at least two variants, the NCEM-enabled fill cells configured for compatibility with logic cells in the standard cell library, each of the cells in the first DOE configured to enable evaluation of a first manufacturing failure by voltage contrast examination of a NCEM of a pad contained in the cell, the variants exhibiting different NCEM sensitivity to the first manufacturing failure; patterning a second DOE by instantiating a plurality of similarly-configured NCEM-enabled fill cells in at least two variants, the NCEM-enabled fill cells configured for compatibility with logic cells in the standard cell library and fill cells in the first DOE, each of the cells in the second DOE configured to enable evaluation of a second manufacturing failure, different from the first manufacturing failure, by voltage contrast examination of a NCEM of a pad contained in the cell, the variants exhibiting different NCEM sensitivity to the second manufacturing failure; and, patterning a third DOE by instantiating a plurality of similarly-configured NCEM-enabled fill cells in at least two variants, the NCEM-enabled fill cells configured for compatibility with logic cells in the standard cell library and fill cells in the first and second DOEs, each of the cells in the third DOE configured to enable evaluation of a third manufacturing failure, different from the first and second manufacturing failures, by voltage contrast examination of a NCEM of a pad contained in the cell, the variants exhibiting different NCEM sensitivity to the third manufacturing failure; and, (b) determining a presence or absence of the first, second, and third manufacturing failures by: performing a voltage contrast examination of NCEM-enabled fill cells in the first DOE; determining whether NCEMs of pads contained in the NCEM-enabled fill cells of the first DOE represent instance(s) of the first manufacturing failure and, if so, determining whether different cell variants exhibit a different prevalence of the first manufacturing failure; performing a voltage contrast examination of NCEM-enabled fill cells in the second DOE; determining whether NCEMs of pads contained in the NCEM-enabled fill cells of the second DOE represent instance(s) of the second manufacturing failure and, if so, determining whether different cell variants exhibit a different prevalence of the second manufacturing failure; performing a voltage contrast examination of NCEM-enabled fill cells in the third DOE; and, determining whether NCEMs of pads contained in the NCEM-enabled fill cells of the third DOE represent instance(s) of the third manufacturing failure and, if so, determining whether different cell variants exhibit a different prevalence of the third manufacturing failure; and, (c) based, at least in part, on results from step (b), fabricating product masks that include: a standard cell area that includes a mix of at least one thousand logic cells, from the standard cell library, and fill cells of different widths and uniform heights, placed into at least twenty adjacent rows, with at least twenty cells placed side-by-side in each row; and, a fourth DOE that includes a plurality of similarly-configured NCEM-enabled fill cells in at least two variants, the NCEM-enabled fill cells configured for compatibility with logic cells in the standard cell area, each of the cells in the fourth DOE configured to enable evaluation of the first manufacturing failure by voltage contrast examination of a NCEM of a pad contained in the cell, the variants exhibiting different NCEM sensitivity to the first manufacturing failure; and, the product masks not including any DOEs configured to enable evaluation of the second or third manufacturing failures; and, (d) using the product masks, performing initial processing steps on a product wafer, the initial processing steps including: patterning the standard cell area; and, patterning the fourth DOE; (e) determining a presence or absence of the first manufacturing failure on the product wafer by: performing a voltage contrast examination of NCEM-enabled fill cells in the fourth DOE; and, determining whether NCEMs of pads contained in the NCEM-enabled fill cells of the fourth DOE represent instance(s) of the first manufacturing failure and, if so, determining whether different cell variants exhibit a different prevalence of the first manufacturing failure; and, (f) based, at least in part, on results from step (e), selectively performing additional processing, metrology or inspection steps on the product wafer, and/or on other product wafer(s) currently being manufactured using a process flow(s) relevant to the observed first manufacturing failure.
Again, generally speaking, and without intending to be limiting, another aspect of the invention relates to methods for making ICs that include, for example: (a) performing initial processing steps on an initial product wafer, the initial processing steps including, at least: patterning a standard cell area that includes a mix of at least one thousand logic cells and fill cells of different widths and uniform heights, placed into at least twenty adjacent rows, with at least twenty cells placed side-by-side in each row; and, patterning, within the standard cell area, a first DOE by instantiating a plurality of similarly-configured NCEM-enabled fill cells in at least two variants, the NCEM-enabled fill cells configured for compatibility with logic cells in the standard cell area, each of the cells in the first DOE configured to enable evaluation of a first manufacturing failure by voltage contrast examination of a NCEM of a pad contained in the cell, the variants exhibiting different NCEM sensitivity to the first manufacturing failure; patterning a second DOE by instantiating a plurality of similarly-configured NCEM-enabled fill cells in at least two variants, the NCEM-enabled fill cells configured for compatibility with logic cells in the standard cell area and fill cells in the first DOE, each of the cells in the second DOE configured to enable evaluation of a second manufacturing failure, different from the first manufacturing failure, by voltage contrast examination of a NCEM of a pad contained in the cell, the variants exhibiting different NCEM sensitivity to the second manufacturing failure; and, (b) determining a presence or absence of the first and second manufacturing failures on the initial product wafer by: performing a voltage contrast examination of NCEM-enabled fill cells in the first DOE; determining whether NCEMs of pads contained in the NCEM-enabled fill cells of the first DOE represent instance(s) of the first manufacturing failure and, if so, determining whether different cell variants exhibit a different prevalence of the first manufacturing failure; performing a voltage contrast examination of NCEM-enabled fill cells in the second DOE; and, determining whether NCEMs of pads contained in the NCEM-enabled fill cells of the second DOE represent instance(s) of the second manufacturing failure and, if so, determining whether different cell variants exhibit a different prevalence of the second manufacturing failure; and, (c) based, at least in part, on results from step (b), fabricating final product masks that include: a standard cell area that includes a mix of at least one thousand logic cells and fill cells of different widths and uniform heights, placed into at least twenty adjacent rows, with at least twenty cells placed side-by-side in each row; and, a third DOE that includes a plurality of similarly-configured NCEM-enabled fill cells in at least two variants, the NCEM-enabled fill cells configured for compatibility with logic cells in the standard cell area, each of the cells in the third DOE configured to enable evaluation of the first manufacturing failure by voltage contrast examination of a NCEM of a pad contained in the cell, the variants exhibiting different NCEM sensitivity to the first manufacturing failure; the final product masks not including any DOEs configured to enable evaluation of the second manufacturing failure; and, (d) using the final product masks, performing initial processing steps on a final product wafer, the initial processing steps including: patterning the standard cell area; and, patterning the third DOE; and, (e) determining a presence or absence of the first manufacturing failure on the final product wafer by: performing a voltage contrast examination of NCEM-enabled fill cells in the third DOE; and, determining whether NCEMs of pads contained in the NCEM-enabled fill cells of the third DOE represent instance(s) of the first manufacturing failure and, if so, determining whether different cell variants exhibit a different prevalence of the first manufacturing failure; and, (f) based, at least in part, on results from step (e), selectively performing additional processing, metrology or inspection steps on the final product wafer, and/or on other product wafer(s) currently being manufactured using a process flow(s) relevant to the observed first manufacturing failure.
Still further aspects of the invention relate to wafers, chips, and processes for making them that include/utilize DOEs based on means/steps for enabling NC detection of tip-to-tip shorts, including but not limited to:
Still further aspects of the invention relate to wafers, chips, and processes for making them that include/utilize DOEs based on means/steps for enabling NC detection of tip-to-side shorts, including but not limited to:
Still further aspects of the invention relate to wafers, chips, and processes for making them that include/utilize DOEs based on means/steps for enabling NC detection of side-to-side shorts, including but not limited to:
Still further aspects of the invention relate to wafers, chips, and processes for making them that include/utilize DOEs based on means/steps for enabling NC detection of L-shape interlayer shorts, including but not limited to:
Still further aspects of the invention relate to wafers, chips, and processes for making them that include/utilize DOEs based on means/steps for enabling NC detection of diagonal shorts, including but not limited to:
Still further aspects of the invention relate to wafers, chips, and processes for making them that include/utilize DOEs based on means/steps for enabling NC detection of corner shorts, including but not limited to:
Still further aspects of the invention relate to wafers, chips, and processes for making them that include/utilize DOEs based on means/steps for enabling NC detection of interlayer-overlap shorts, including but not limited to:
Still further aspects of the invention relate to wafers, chips, and processes for making them that include/utilize DOEs based on means/steps for enabling NC detection of via-chamfer shorts, including but not limited to:
Still further aspects of the invention relate to wafers, chips, and processes for making them that include/utilize DOEs based on means/steps for enabling NC detection of merged-via shorts, including but not limited to:
Still further aspects of the invention relate to wafers, chips, and processes for making them that include/utilize DOEs based on means/steps for enabling NC detection of snake opens, including but not limited to:
Still further aspects of the invention relate to wafers, chips, and processes for making them that include/utilize DOEs based on means/steps for enabling NC detection of stitch opens, including but not limited to:
Still further aspects of the invention relate to wafers, chips, and processes for making them that include/utilize DOEs based on means/steps for enabling NC detection of via opens, including but not limited to:
Still further aspects of the invention relate to wafers, chips, and processes for making them that include/utilize DOEs based on means/steps for enabling NC detection of metal island opens, including but not limited to:
Still further aspects of the invention relate to wafers, chips, and processes for making them that include/utilize DOEs based on means/steps for enabling NC detection of merged-via opens, including but not limited to:
Still further aspects of the invention relate to wafers, chips, and processes for making them that include/utilize DOEs based on means/steps for enabling NC detection of tip-to-tip leakages, including but not limited to:
Still further aspects of the invention relate to wafers, chips, and processes for making them that include/utilize DOEs based on means/steps for enabling NC detection of tip-to-side leakages, including but not limited to:
Still further aspects of the invention relate to wafers, chips, and processes for making them that include/utilize DOEs based on means/steps for enabling NC detection of side-to-side leakages, including but not limited to:
Still further aspects of the invention relate to wafers, chips, and processes for making them that include/utilize DOEs based on means/steps for enabling NC detection of L-shape interlayer leakages, including but not limited to:
Still further aspects of the invention relate to wafers, chips, and processes for making them that include/utilize DOEs based on means/steps for enabling NC detection of diagonal leakages, including but not limited to:
Still further aspects of the invention relate to wafers, chips, and processes for making them that include/utilize DOEs based on means/steps for enabling NC detection of corner leakages, including but not limited to:
Still further aspects of the invention relate to wafers, chips, and processes for making them that include/utilize DOEs based on means/steps for enabling NC detection of interlayer-overlap leakages, including but not limited to:
Still further aspects of the invention relate to wafers, chips, and processes for making them that include/utilize DOEs based on means/steps for enabling NC detection of via-chamfer leakages, including but not limited to:
Still further aspects of the invention relate to wafers, chips, and processes for making them that include/utilize DOEs based on means/steps for enabling NC detection of merged-via leakages, including but not limited to:
Still further aspects of the invention relate to wafers, chips, and processes for making them that include/utilize DOEs based on means/steps for enabling NC detection of snake resistances, including but not limited to:
Still further aspects of the invention relate to wafers, chips, and processes for making them that include/utilize DOEs based on means/steps for enabling NC detection of stitch resistances, including but not limited to:
Still further aspects of the invention relate to wafers, chips, and processes for making them that include/utilize DOEs based on means/steps for enabling NC detection of via resistances, including but not limited to:
Still further aspects of the invention relate to wafers, chips, and processes for making them that include/utilize DOEs based on means/steps for enabling NC detection of metal island resistances, including but not limited to:
Still further aspects of the invention relate to wafers, chips, and processes for making them that include/utilize DOEs based on means/steps for enabling NC detection of merged-via resistances, including but not limited to:
Still further aspects of the invention relate to mesh-style NCEM pads, and their use with in-line process control/optimization, such pads comprising, for example: at least two parallel, elongated AACNT features, extending longitudinally in a first direction; at least two parallel, elongated GATECNT features, extending longitudinally in a second direction, perpendicular to the first direction; wherein the features are positioned such that each of the AANCT features intersects each of the GATECNT features. Such pads may include at least three (or four, or five, or six, etc.) parallel, elongated AACNT features that extend longitudinally in the first direction, and/or at least three (or four, or five, or six, etc.) parallel, elongated GATECNT features that extend longitudinally in the second direction. Such pads may be part of an assembly that includes: a mesh-style NCEM pad; and, an upper layer NCEM pad, overlying the mesh-style NCEM pad, said upper layer NCEM pad comprising: one or more mask-patterned features, in a first wiring layer (M1), that substantially cover the mesh-style NCEM pad; and, one or more mask-patterned features, in a via to interconnect stack (V0) layer, that provide electrical connection(s) between the M1 feature(s) and the mesh-style NCEM pad. Such V0 features may be positioned at the intersections of the underlying AACNT and GATECNT features, or may be positioned to avoid intersections of the underlying AACNT and GATECNT features. The one or more M1 features may include multiple, parallel, elongated M1 features. Any of the aforesaid features may be single-patterned, double-patterned, triple-patterned, etc. Such mesh-style NCEM pads may be used in NCEM-enabled fill cells, including but not limited to: AA-tip-to-tip-short-configured, NCEM-enabled fill cells; AACNT-tip-to-tip-short-configured, NCEM-enabled fill cells; AACNT-AA-tip-to-tip-short-configured, NCEM-enabled fill cells; AACNT-TS-tip-to-tip-short-configured, NCEM-enabled fill cells; TS-tip-to-tip-short-configured, NCEM-enabled fill cells; GATE-tip-to-tip-short-configured, NCEM-enabled fill cells; GATECNT-GATE-tip-to-tip-short-configured, NCEM-enabled fill cells; GATECNT-tip-to-tip-short-configured, NCEM-enabled fill cells; GATECNT-AACNT-tip-to-tip-short-configured, NCEM-enabled fill cells; M1-tip-to-tip-short-configured, NCEM-enabled fill cells; V0-tip-to-tip-short-configured, NCEM-enabled fill cells; M1-V0-tip-to-tip-short-configured, NCEM-enabled fill cells; V1-M1-tip-to-tip-short-configured, NCEM-enabled fill cells; V1-tip-to-tip-short-configured, NCEM-enabled fill cells; M2-tip-to-tip-short-configured, NCEM-enabled fill cells; M2-V1-tip-to-tip-short-configured, NCEM-enabled fill cells; V2-M2-tip-to-tip-short-configured, NCEM-enabled fill cells; M3-tip-to-tip-short-configured, NCEM-enabled fill cells; V2-tip-to-tip-short-configured, NCEM-enabled fill cells; M3-V2-tip-to-tip-short-configured, NCEM-enabled fill cells; AA-tip-to-side-short-configured, NCEM-enabled fill cells; AACNT-tip-to-side-short-configured, NCEM-enabled fill cells; AACNT-AA-tip-to-side-short-configured, NCEM-enabled fill cells; GATE-AA-tip-to-side-short-configured, NCEM-enabled fill cells; GATECNT-GATE-tip-to-side-short-configured, NCEM-enabled fill cells; GATECNT-tip-to-side-short-configured, NCEM-enabled fill cells; TS-GATECNT-tip-to-side-short-configured, NCEM-enabled fill cells; GATECNT-AACNT-tip-to-side-short-configured, NCEM-enabled fill cells; GATECNT-AACNT-TS-tip-to-side-short-configured, NCEM-enabled fill cells; M1-tip-to-side-short-configured, NCEM-enabled fill cells; V0-tip-to-side-short-configured, NCEM-enabled fill cells; M1-V0-tip-to-side-short-configured, NCEM-enabled fill cells; V1-M1-tip-to-side-short-configured, NCEM-enabled fill cells; V1-tip-to-side-short-configured, NCEM-enabled fill cells; M2-tip-to-side-short-configured, NCEM-enabled fill cells; M2-V1-tip-to-side-short-configured, NCEM-enabled fill cells; V2-M2-tip-to-side-short-configured, NCEM-enabled fill cells; M3-tip-to-side-short-configured, NCEM-enabled fill cells; V2-tip-to-side-short-configured, NCEM-enabled fill cells; M3-V2-tip-to-side-short-configured, NCEM-enabled fill cells; AA-side-to-side-short-configured, NCEM-enabled fill cells; AACNT-side-to-side-short-configured, NCEM-enabled fill cells; AACNT-AA-side-to-side-short-configured, NCEM-enabled fill cells; AACNT-GATE-side-to-side-short-configured, NCEM-enabled fill cells; GATE-side-to-side-short-configured, NCEM-enabled fill cells; GATECNT-GATE-side-to-side-short-configured, NCEM-enabled fill cells; TS-GATE-side-to-side-short-configured, NCEM-enabled fill cells; GATECNT-side-to-side-short-configured, NCEM-enabled fill cells; GATECNT-AACNT-side-to-side-short-configured, NCEM-enabled fill cells; M1-side-to-side-short-configured, NCEM-enabled fill cells; V0-side-to-side-short-configured, NCEM-enabled fill cells; M1-V0-side-to-side-short-configured, NCEM-enabled fill cells; V1-M1-side-to-side-short-configured, NCEM-enabled fill cells; V1-side-to-side-short-configured, NCEM-enabled fill cells; M2-side-to-side-short-configured, NCEM-enabled fill cells; M2-V1-side-to-side-short-configured, NCEM-enabled fill cells; V2-M2-side-to-side-short-configured, NCEM-enabled fill cells; M3-side-to-side-short-configured, NCEM-enabled fill cells; V2-side-to-side-short-configured, NCEM-enabled fill cells; M3-V2-side-to-side-short-configured, NCEM-enabled fill cells; AA-L-shape-interlayer-short-configured, NCEM-enabled fill cells; AACNT-L-shape-interlayer-short-configured, NCEM-enabled fill cells; AACNT-AA-L-shape-interlayer-short-configured, NCEM-enabled fill cells; GATE-AA-L-shape-interlayer-short-configured, NCEM-enabled fill cells; GATE-TS-L-shape-interlayer-short-configured, NCEM-enabled fill cells; GATECNT-GATE-L-shape-interlayer-short-configured, NCEM-enabled fill cells; GATECNT-AA-L-shape-interlayer-short-configured, NCEM-enabled fill cells; GATECNT-TS-L-shape-interlayer-short-configured, NCEM-enabled fill cells; GATECNT-AACNT-L-shape-interlayer-short-configured, NCEM-enabled fill cells; V0-AA-L-shape-interlayer-short-configured, NCEM-enabled fill cells; V0-TS-L-shape-interlayer-short-configured, NCEM-enabled fill cells; V0-AACNT-L-shape-interlayer-short-configured, NCEM-enabled fill cells; V0-GATE-L-shape-interlayer-short-configured, NCEM-enabled fill cells; V0-GATECNT-L-shape-interlayer-short-configured, NCEM-enabled fill cells; M1-AACNT-L-shape-interlayer-short-configured, NCEM-enabled fill cells; M1-GATECNT-L-shape-interlayer-short-configured, NCEM-enabled fill cells; M1-V0-L-shape-interlayer-short-configured, NCEM-enabled fill cells; V1-M1-L-shape-interlayer-short-configured, NCEM-enabled fill cells; V1-V0-L-shape-interlayer-short-configured, NCEM-enabled fill cells; M2-M1-L-shape-interlayer-short-configured, NCEM-enabled fill cells; M2-V1-L-shape-interlayer-short-configured, NCEM-enabled fill cells; V2-V1-L-shape-interlayer-short-configured, NCEM-enabled fill cells; V2-M2-L-shape-interlayer-short-configured, NCEM-enabled fill cells; M3-M2-L-shape-interlayer-short-configured, NCEM-enabled fill cells; M3-V2-L-shape-interlayer-short-configured, NCEM-enabled fill cells; AA-diagonal-short-configured, NCEM-enabled fill cells; TS-diagonal-short-configured, NCEM-enabled fill cells; AACNT-diagonal-short-configured, NCEM-enabled fill cells; AACNT-AA-diagonal-short-configured, NCEM-enabled fill cells; GATE-diagonal-short-configured, NCEM-enabled fill cells; GATE-AACNT-diagonal-short-configured, NCEM-enabled fill cells; GATECNT-GATE-diagonal-short-configured, NCEM-enabled fill cells; GATECNT-diagonal-short-configured, NCEM-enabled fill cells; GATECNT-AACNT-diagonal-short-configured, NCEM-enabled fill cells; M1-diagonal-short-configured, NCEM-enabled fill cells; V0-diagonal-short-configured, NCEM-enabled fill cells; M1-V0-diagonal-short-configured, NCEM-enabled fill cells; V1-M1-diagonal-short-configured, NCEM-enabled fill cells; V1-diagonal-short-configured, NCEM-enabled fill cells; M2-diagonal-short-configured, NCEM-enabled fill cells; M2-V1-diagonal-short-configured, NCEM-enabled fill cells; M3-diagonal-short-configured, NCEM-enabled fill cells; V2-M2-diagonal-short-configured, NCEM-enabled fill cells; V2-diagonal-short-configured, NCEM-enabled fill cells; M3-V2-diagonal-short-configured, NCEM-enabled fill cells; AA-corner-short-configured, NCEM-enabled fill cells; AACNT-corner-short-configured, NCEM-enabled fill cells; AACNT-AA-corner-short-configured, NCEM-enabled fill cells; GATE-corner-short-configured, NCEM-enabled fill cells; GATECNT-GATE-corner-short-configured, NCEM-enabled fill cells; GATECNT-TS-corner-short-configured, NCEM-enabled fill cells; GATECNT-corner-short-configured, NCEM-enabled fill cells; GATECNT-AA-corner-short-configured, NCEM-enabled fill cells; GATECNT-AACNT-corner-short-configured, NCEM-enabled fill cells; M1-corner-short-configured, NCEM-enabled fill cells; V0-corner-short-configured, NCEM-enabled fill cells; M1-V0-corner-short-configured, NCEM-enabled fill cells; V1-M1-corner-short-configured, NCEM-enabled fill cells; V1-corner-short-configured, NCEM-enabled fill cells; M2-corner-short-configured, NCEM-enabled fill cells; M2-V1-corner-short-configured, NCEM-enabled fill cells; M3-corner-short-configured, NCEM-enabled fill cells; V2-M2-corner-short-configured, NCEM-enabled fill cells; V2-corner-short-configured, NCEM-enabled fill cells; M3-V2-corner-short-configured, NCEM-enabled fill cells; GATE-AA-interlayer-overlap-short-configured, NCEM-enabled fill cells; GATE-AACNT-interlayer-overlap-short-configured, NCEM-enabled fill cells; GATE-TS-interlayer-overlap-short-configured, NCEM-enabled fill cells; GATECNT-TS-interlayer-overlap-short-configured, NCEM-enabled fill cells; GATECNT-AA-interlayer-overlap-short-configured, NCEM-enabled fill cells; V0-AA-interlayer-overlap-short-configured, NCEM-enabled fill cells; V0-AACNT-interlayer-overlap-short-configured, NCEM-enabled fill cells; V0-TS-interlayer-overlap-short-configured, NCEM-enabled fill cells; V0-GATE-interlayer-overlap-short-configured, NCEM-enabled fill cells; M1-GATECNT-interlayer-overlap-short-configured, NCEM-enabled fill cells; M1-AACNT-interlayer-overlap-short-configured, NCEM-enabled fill cells; V1-V0-interlayer-overlap-short-configured, NCEM-enabled fill cells; M2-M1-interlayer-overlap-short-configured, NCEM-enabled fill cells; V2-V1-interlayer-overlap-short-configured, NCEM-enabled fill cells; M3-M2-interlayer-overlap-short-configured, NCEM-enabled fill cells; V0-GATECNT-via-chamfer-short-configured, NCEM-enabled fill cells; V0-AACNT-via-chamfer-short-configured, NCEM-enabled fill cells; V1-M1-via-chamfer-short-configured, NCEM-enabled fill cells; V2-M2-via-chamfer-short-configured, NCEM-enabled fill cells; V3-M3-via-chamfer-short-configured, NCEM-enabled fill cells; V0-merged-via-short-configured, NCEM-enabled fill cells; V1-merged-via-short-configured, NCEM-enabled fill cells; V2-merged-via-short-configured, NCEM-enabled fill cells; AA-snake-open-configured, NCEM-enabled fill cells; TS-snake-open-configured, NCEM-enabled fill cells; AACNT-snake-open-configured, NCEM-enabled fill cells; GATE-snake-open-configured, NCEM-enabled fill cells; GATECNT-snake-open-configured, NCEM-enabled fill cells; V0-snake-open-configured, NCEM-enabled fill cells; M1-snake-open-configured, NCEM-enabled fill cells; M1-V0-AACNT-snake-open-configured, NCEM-enabled fill cells; V1-snake-open-configured, NCEM-enabled fill cells; M2-snake-open-configured, NCEM-enabled fill cells; V2-snake-open-configured, NCEM-enabled fill cells; M3-snake-open-configured, NCEM-enabled fill cells;
AA-stitch-open-configured, NCEM-enabled fill cells; TS-stitch-open-configured, NCEM-enabled fill cells; AACNT-stitch-open-configured, NCEM-enabled fill cells; GATECNT-stitch-open-configured, NCEM-enabled fill cells; V0-stitch-open-configured, NCEM-enabled fill cells; M1-stitch-open-configured, NCEM-enabled fill cells; V1-stitch-open-configured, NCEM-enabled fill cells; M2-stitch-open-configured, NCEM-enabled fill cells; V2-stitch-open-configured, NCEM-enabled fill cells; M3-stitch-open-configured, NCEM-enabled fill cells; AACNT-TS-via-open-configured, NCEM-enabled fill cells; AACNT-AA-via-open-configured, NCEM-enabled fill cells; TS-AA-via-open-configured, NCEM-enabled fill cells; GATECNT-GATE-via-open-configured, NCEM-enabled fill cells; GATECNT-AACNT-via-open-configured, NCEM-enabled fill cells; GATECNT-AACNT-GATE-via-open-configured, NCEM-enabled fill cells; V0-GATECNT-via-open-configured, NCEM-enabled fill cells; V0-AA-via-open-configured, NCEM-enabled fill cells; V0-TS-via-open-configured, NCEM-enabled fill cells; V0-AACNT-via-open-configured, NCEM-enabled fill cells; V0-GATE-via-open-configured, NCEM-enabled fill cells; V0-via-open-configured, NCEM-enabled fill cells; M1-V0-via-open-configured, NCEM-enabled fill cells; V1-via-open-configured, NCEM-enabled fill cells; V1-M1-via-open-configured, NCEM-enabled fill cells; V1-M2-via-open-configured, NCEM-enabled fill cells; M1-GATECNT-via-open-configured, NCEM-enabled fill cells; M1-AANCT-via-open-configured, NCEM-enabled fill cells; V2-M2-via-open-configured, NCEM-enabled fill cells; V2-M3-via-open-configured, NCEM-enabled fill cells; V3-via-open-configured, NCEM-enabled fill cells; M4-V3-via-open-configured, NCEM-enabled fill cells; M5-V4-via-open-configured, NCEM-enabled fill cells; M1-metal-island-open-configured, NCEM-enabled fill cells; M2-metal-island-open-configured, NCEM-enabled fill cells; M3-metal-island-open-configured, NCEM-enabled fill cells; V0-merged-via-open-configured, NCEM-enabled fill cells; V0-AACNT-merged-via-open-configured, NCEM-enabled fill cells; V0-GATECNT-merged-via-open-configured, NCEM-enabled fill cells; V1-merged-via-open-configured, NCEM-enabled fill cells; V2-merged-via-open-configured, NCEM-enabled fill cells; V1-M1-merged-via-open-configured, NCEM-enabled fill cells; and/or V2-M2-merged-via-open-configured, NCEM-enabled fill cells. Using such mesh-style pads, a method for processing a semiconductor substrate may include: using a first mask to pattern a plurality of adjacent AACNT stripes on the substrate; using a second mask to pattern a plurality of adjacent GATECNT stripes on the substrate, where the GATECNT stripes perpendicularly overlap the AACNT stripes to form a mesh-style NCEM pad; and, obtaining in-line NCEM from the mesh-style NCEM pad. Such process may further include: using a third mask to pattern a plurality of V0 vias above at least some of the GATECNT and/or AACNT stripes of the mesh-style NCEM pad; and, using a fourth mask to pattern one or more M1 features above one or more of said V0 vias to form an M1 NCEM pad, and may further include: obtaining in-line NCEM from the M1 NCEM pad.
Again, generally speaking, and without intending to be limiting, another aspect of the invention relates to methods for making integrated circuits (ICs), comprising, for example, at least: (a) performing initial processing steps to produce a test wafer that includes a first Design of Experiments (DOE) of Non-Contact Electrical Measurement (NCEM)-enabled, gate contact (GATECNT)-gate (GATE)-via-open-configured fill cells, said initial processing steps including: (i) patterning, on the test wafer, a first means for enabling NC detection of GATECNT-GATE via opens; and (ii) patterning, on the test wafer, a second means for enabling NC detection of GATECNT-GATE via opens; wherein the first and second means for enabling NC detection of GATECNT-GATE via opens are different; (b) determining a presence or absence of GATECNT-GATE via opens on the test wafer by: performing a voltage contrast examination of NCEM-enabled fill cells in the first DOE, including at least the first and second means for enabling NC detection of GATECNT-GATE via opens; and (c) using the results from step (b) to select NCEM-enabled fill cells for inclusion on a subsequent product wafer. In some embodiments, step (c) includes: selecting, for inclusion on the product wafer, a plurality of NCEM-enabled, GATECNT-GATE-via-open-configured fill cells, if step (b) indicated a presence of any GATECNT-GATE via opens. In some embodiments, step (c) includes: omitting, from inclusion on the product wafer, any NCEM-enabled, GATECNT-GATE-via-open-configured fill cells, if step (b) indicated an absence of any GATECNT-GATE via opens. In some embodiments, the first and second means for enabling NC detection of GATECNT-GATE via opens are both selected from the list consisting of: a A_PDF_VCI_FILL8_9S101_0004_1 means for enabling NC detection of GATECNT-GATE via opens; a A_PDF_VCI_FILL16_9S101_0004_1 means for enabling NC detection of GATECNT-GATE via opens; a A_PDF_VCI_FILL32_9S101_0004_1 means for enabling NC detection of GATECNT-GATE via opens; a A_PDF_VCI_FILL64_9S101_0004_1 means for enabling NC detection of GATECNT-GATE via opens; a A_PDF_VCI_FILL8_9S101_0003_1 means for enabling NC detection of GATECNT-GATE via opens; a A_PDF_VCI_FILL16_9S101_0003_1 means for enabling NC detection of GATECNT-GATE via opens; a A_PDF_VCI_FILL32_9S101_0003_1 means for enabling NC detection of GATECNT-GATE via opens; a A_PDF_VCI_FILL64_9S101_0003_1 means for enabling NC detection of GATECNT-GATE via opens; a A_PDF_VCI_FILL8_9S107_0003_1 means for enabling NC detection of GATECNT-GATE via opens; a A_PDF_VCI_FILL16_9S107_0002_1 means for enabling NC detection of GATECNT-GATE via opens; a A_PDF_VCI_FILL32_9S107_0003_1 means for enabling NC detection of GATECNT-GATE via opens; a A_PDF_VCI_FILL64_9S107_0003_1 means for enabling NC detection of GATECNT-GATE via opens; a A_PDF_VCI_FILL8_9S111_0001_1 means for enabling NC detection of GATECNT-GATE via opens; a A_PDF_VCI_FILL16_9S111_0001_1 means for enabling NC detection of GATECNT-GATE via opens; a A_PDF_VCI_FILL32_9S111_0001_1 means for enabling NC detection of GATECNT-GATE via opens; and a A_PDF_VCI_FILL64_9S111_0001_1 means for enabling NC detection of GATECNT-GATE via opens. In some embodiments, the first and second means for enabling NC detection of GATECNT-GATE via opens are both selected from the list consisting of: a C_V682_PDF_VCI_16_2000140_01 means for enabling NC detection of GATECNT-GATE via opens; a C_V682_PDF_VCI_16_2002240_34 means for enabling NC detection of GATECNT-GATE via opens; a C_V682_PDF_VCI_16_2004340_67 means for enabling NC detection of GATECNT-GATE via opens; a C_V682_PDF_VCI_16_2000146_01 means for enabling NC detection of GATECNT-GATE via opens; a C_V682_PDF_VCI_16_2002246_34 means for enabling NC detection of GATECNT-GATE via opens; and a C_V682_PDF_VCI_16_2004346_67 means for enabling NC detection of GATECNT-GATE via opens. In some embodiments, the first and second means for enabling NC detection of GATECNT-GATE via opens are both selected from the list consisting of: a D_PDF_VCI_VFILL4_12S01_0105_1 means for enabling NC detection of GATECNT-GATE via opens; a D_PDF_VCI_VFILL4_12S01_0037_1 means for enabling NC detection of GATECNT-GATE via opens; a D_PDF_VCI_VFILL4_12S01_0034_1 means for enabling NC detection of GATECNT-GATE via opens; a D_PDF_VCI_VFILL4_12S01_0097_1 means for enabling NC detection of GATECNT-GATE via opens; a D_PDF_VCI_VFILL4_12S01_0088_1 means for enabling NC detection of GATECNT-GATE via opens; a D_PDF_VCI_VFILL4_12S01_0087_1 means for enabling NC detection of GATECNT-GATE via opens; a D_PDF_VCI_VFILL4_12S01_0019_1 means for enabling NC detection of GATECNT-GATE via opens; a D_PDF_VCI_VFILL4_12S01_0083_1 means for enabling NC detection of GATECNT-GATE via opens; a D_PDF_VCI_VFILL4_12S01_0008_1 means for enabling NC detection of GATECNT-GATE via opens; a D_PDF_VCI_VFILL4_12S01_0070_1 means for enabling NC detection of GATECNT-GATE via opens; a D_PDF_VCI_VFILL4_12S01_0001_1 means for enabling NC detection of GATECNT-GATE via opens; a D_PDF_VCI_VFILL4_12S01_0065_1 means for enabling NC detection of GATECNT-GATE via opens; and a D_PDF_VCI_VFILL4_12S01_0052_1 means for enabling NC detection of GATECNT-GATE via opens. In some embodiments, the first and second means for enabling NC detection of GATECNT-GATE via opens are both selected from the list consisting of: a E_PDF_VCI_FILL8_17S1_0053_1 means for enabling NC detection of GATECNT-GATE via opens; a E_PDF_VCI_FILL8_17S1_0051_1 means for enabling NC detection of GATECNT-GATE via opens; a E_PDF_VCI_FILL8_17S1_0026_1 means for enabling NC detection of GATECNT-GATE via opens; a E_PDF_VCI_FILL8_17S1_0022_1 means for enabling NC detection of GATECNT-GATE via opens; a E_PDF_VCI_FILL8_17S1_0021_1 means for enabling NC detection of GATECNT-GATE via opens; a E_PDF_VCI_FILL8_17S1_0020_1 means for enabling NC detection of GATECNT-GATE via opens; a E_PDF_VCI_FILL8_17S1_0019_1 means for enabling NC detection of GATECNT-GATE via opens; a E_PDF_VCI_FILL8_17S1_0018_1 means for enabling NC detection of GATECNT-GATE via opens; a E_PDF_VCI_FILL8_17S1_0017_1 means for enabling NC detection of GATECNT-GATE via opens; a E_PDF_VCI_FILL8_17S1_0008_1 means for enabling NC detection of GATECNT-GATE via opens; a E_PDF_VCI_FILL8_17S1_0007_1 means for enabling NC detection of GATECNT-GATE via opens; a E_PDF_VCI_FILL8_17S1_0006_1 means for enabling NC detection of GATECNT-GATE via opens; and a E_PDF_VCI_FILL8_17S1_0005_1 means for enabling NC detection of GATECNT-GATE via opens. In some embodiments, the first and second means for enabling NC detection of GATECNT-GATE via opens are both selected from the list consisting of: a F_PDF_VCI_FILL08_24S1_0084_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL08_24S2_0047_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL64_24S1_0080_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL64_24S1_0079_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL64_24S1_0078_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL64_24S1_0076_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL08_24S1_0077_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL08_24S1_0076_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL08_24S1_0075_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL08_24S1_0073_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL64_24S1_0060_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL64_24S1_0059_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL64_24S1_0058_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL64_24S2_0025_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL64_24S1_0056_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL08_24S1_0057_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL64_24S2_0023_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL08_24S1_0056_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL64_24S1_0054_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL08_24S1_0055_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL08_24S2_0017_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL08_24S1_0053_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL08_24S2_0016_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL08_24S1_0051_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL32_24S1_0084_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL32_24S2_0045_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL32_24S1_0077_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL32_24S1_0076_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL32_24S1_0075_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL32_24S1_0073_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL32_24S1_0057_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL32_24S1_0056_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL32_24S1_0055_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL32_24S2_0033_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL32_24S1_0053_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL32_24S2_0031_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL32_24S1_0051_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL16_24S1_0043_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL16_24S2_0035_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL16_24S1_0036_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL16_24S1_0035_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL16_24S1_0034_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL16_24S1_0032_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL16_24S1_0016_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL16_24S1_0015_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL16_24S1_0014_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL16_24S2_0037_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL16_24S1_0012_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL16_24S2_0036_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL16_24S1_0010_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL64_24S1_0003_1 means for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL64_24S2_0045_1 means for enabling NC detection of GATECNT-GATE via opens; and a F_PDF_VCI_FILL08_24S2_0043_1 means for enabling NC detection of GATECNT-GATE via opens. In some embodiments, the first and second means for enabling NC detection of GATECNT-GATE via opens are both selected from the list consisting of: a G_V931_PDF_VCI_20001AC_01 means for enabling NC detection of GATECNT-GATE via opens; a G_V931_PDF_VCI_2000DAC_13 means for enabling NC detection of GATECNT-GATE via opens; a G_V931_PDF_VCI_20019AC_25 means for enabling NC detection of GATECNT-GATE via opens; a H_PDF_VCI_V16_14S1_08 means for enabling NC detection of GATECNT-GATE via opens; a H_PDF_VCI_V16_14S1_09 means for enabling NC detection of GATECNT-GATE via opens; a H_PDF_VCI_V16_14S1_10 means for enabling NC detection of GATECNT-GATE via opens; and a H_PDF_VCI_V16_14S1_13 means for enabling NC detection of GATECNT-GATE via opens. In some embodiments, the first and second means for enabling NC detection of GATECNT-GATE via opens are both selected from the list consisting of: a I_V421_VCI_20S3000123_001 means for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3000223_002 means for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3000124_001 means for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3000224_002 means for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3000125_001 means for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3000225_002 means for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3000127_001 means for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3001227_018 means for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3002327_035 means for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3002427_036 means for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3003527_053 means for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3004627_070 means for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3000128_001 means for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3000D28_013 means for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3001928_025 means for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3001A28_026 means for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3002628_038 means for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3003228_050 means for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3000126_001 means for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3001226_018 means for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3002326_035 means for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3002426_036 means for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3003526_053 means for enabling NC detection of GATECNT-GATE via opens; and a I_V421_VCI_20S3004626_070 means for enabling NC detection of GATECNT-GATE via opens. In some embodiments, the first and second means for enabling NC detection of GATECNT-GATE via opens are both selected from the list consisting of: a J_PDF_VCI_VFILLCV4_7S101_1_1 means for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S101_31_1 means for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S102_63_1 means for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S102_92_1 means for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S102_93_1 means for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S111_282_1 means for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S111_311_1 means for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S111_312_1 means for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S112_313_1 means for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S112_342_1 means for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S112_343_1 means for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S113_344_1 means for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S113_373_1 means for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S113_374_1 means for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S114_375_1 means for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S114_404_1 means for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S114_405_1 means for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV8_7S270_0046_1 means for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV8_7S270_0001_1 means for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S108_140_1 means for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S108_142_1 means for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S108_171_1 means for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S109_208_1 means for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S109_210_1 means for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S109_244_1 means for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S110_245_1 means for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S110_247_1 means for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S110_281_1 means for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV8_7S271_0083_1 means for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV8_7S271_0002_1 means for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV8_7S271_0001_1 means for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_FILL8_1_1 means for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_FILL8_2_1 means for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_FILL8_19_1 means for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_FILL8_28_1 means for enabling NC detection of GATECNT-GATE via opens; and a J_PDF_VCI_FILL8_29_1 means for enabling NC detection of GATECNT-GATE via opens. In some embodiments, the first and second means for enabling NC detection of GATECNT-GATE via opens are both selected from the list consisting of: a K_V549_PDF_VCI_300012B_01 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_300102B_16 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3001F2B_31 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2000158_01 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2002458_36 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2004758_71 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_300012C_01 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_300102C_16 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3001F2C_31 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3000128_01 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3001028_16 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3001F28_31 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3002028_32 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3002F28_47 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3003E28_62 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2000100_01 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2001000_16 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2001F00_31 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_200015A_01 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_200175A_23 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2002D5A_45 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3000127_01 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3001027_16 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3001F27_31 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3002027_32 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3002F27_47 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3003E27_62 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3003F27_63 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3004E27_78 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3005D27_93 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2000101_01 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2001101_17 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2002101_33 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2001003_16 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2000103_01 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2001F03_31 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_20001C3_01 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2000AC3_10 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_20013C3_19 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_20001C4_01 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2000AC4_10 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_20013C4_19 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_20001C5_01 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2000AC5_10 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_20013C5_19 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2000194_01 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2001794_23 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2002D94_45 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3000136_01 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3000D36_13 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3001936_25 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3001A36_26 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3002636_38 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3003236_50 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3003336_51 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3003F36_63 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3004B36_75 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3004C36_76 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3005836_88 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3006436_100 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3000137_01 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3000D37_13 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3001937_25 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3001A37_26 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3002637_38 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3003237_50 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3003337_51 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3003F37_63 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3004B37_75 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3004C37_76 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3005837_88 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3006437_100 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_20001A8_01 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_20017A8_23 means for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_20018A8_24 means for enabling NC detection of GATECNT-GATE via opens; and a K_V549_PDF_VCI_2002EA8_46 means for enabling NC detection of GATECNT-GATE via opens. In some embodiments, the first and second means for enabling NC detection of GATECNT-GATE via opens are both selected from the list consisting of: a L_V54C_B_PDF_VCI_100012E_01 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_B_PDF_VCI_100172E_23 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_B_PDF_VCI_100012C_01 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_B_PDF_VCI_100242C_36 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_B_PDF_VCI_100472C_71 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_300012B_01 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_300102B_16 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3001F2B_31 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_300012C_01 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_300102C_16 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3001F2C_31 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3000127_01 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3001027_16 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3001F27_31 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3002027_32 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3002F27_47 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3003E27_62 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3003F27_63 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3004E27_78 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3005D27_93 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3000128_01 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3001028_16 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3001F28_31 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3002028_32 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3002F28_47 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3003E28_62 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3000136_01 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3000D36_13 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3001936_25 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3001A36_26 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3002636_38 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3003236_50 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3003336_51 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3003F36_63 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3004B36_75 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3004C36_76 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3005836_88 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3006436_100 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_2000100_01 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_2001000_16 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_2001F00_31 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_2000101_01 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_2000601_06 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_2000B01_11 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_2000103_01 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_2001003_16 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_2001F03_31 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_20001A8_01 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_20017A8_23 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_20018A8_24 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_2002EA8_46 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_20001C3_01 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_2000AC3_10 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_20013C3_19 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_20001C4_01 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_2000AC4_10 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_20013C4_19 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_20001C5_01 means for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_2000AC5_10 means for enabling NC detection of GATECNT-GATE via opens; and a L_V54C_M_PDF_VCI_20013C5_19 means for enabling NC detection of GATECNT-GATE via opens. In some embodiments, the first and second means for enabling NC detection of GATECNT-GATE via opens are both selected from the list consisting of: a M_V54B_PDF_VCI_100012E_01 means for enabling NC detection of GATECNT-GATE via opens; a M_V54B_PDF_VCI_100172E_23 means for enabling NC detection of GATECNT-GATE via opens; and a M_V54B_PDF_VCI_100182E_24 means for enabling NC detection of GATECNT-GATE via opens.
Again, generally speaking, and without intending to be limiting, another aspect of the invention relates to methods for making ICs, comprising, for example, at least: (a) performing initial processing steps to produce a test wafer that includes a first DOE of NCEM-enabled, GATECNT-GATE-via-open-configured fill cells, said initial processing steps including: (i) patterning, on the test wafer, a first means for enabling NC detection of GATECNT-GATE via opens; and (ii) patterning, on the test wafer, a second means for enabling NC detection of GATECNT-GATE via opens; wherein the first and second means for enabling NC detection of GATECNT-GATE via opens are different; (b) determining a presence or absence of GATECNT-GATE via opens on the test wafer by: performing a voltage contrast examination of NCEM-enabled fill cells in the first DOE, including at least the first and second means for enabling NC detection of GATECNT-GATE via opens; and (c) using the results from step (b) in processing of a subsequent product wafer.
Again, generally speaking, and without intending to be limiting, another aspect of the invention relates to methods for making ICs, comprising, for example, at least: (a) performing initial processing steps to produce a test wafer that includes a first DOE of NCEM-enabled, GATECNT-GATE-via-open-configured fill cells, said initial processing steps including: (i) first step for enabling, on the test wafer, NC detection of GATECNT-GATE via opens; and (ii) second step for enabling, on the test wafer, NC detection of GATECNT-GATE via opens; wherein the first and second steps for enabling NC detection of GATECNT-GATE via opens are different; (b) determining a presence or absence of GATECNT-GATE via opens on the test wafer by: performing a voltage contrast examination of NCEM-enabled fill cells in the first DOE; and (c) using the results from step (b) to select NCEM-enabled fill cells for inclusion on a subsequent product wafer. In some embodiments, the first and second steps for enabling NC detection of GATECNT-GATE via opens are both selected from the list consisting of: a A_PDF_VCI_FILL8_9S101_0004_1 step for enabling NC detection of GATECNT-GATE via opens; a A_PDF_VCI_FILL16_9S101_0004_1 step for enabling NC detection of GATECNT-GATE via opens; a A_PDF_VCI_FILL32_9S101_0004_1 step for enabling NC detection of GATECNT-GATE via opens; a A_PDF_VCI_FILL64_9S101_0004_1 step for enabling NC detection of GATECNT-GATE via opens; a A_PDF_VCI_FILL8_9S101_0003_1 step for enabling NC detection of GATECNT-GATE via opens; a A_PDF_VCI_FILL16_9S101_0003_1 step for enabling NC detection of GATECNT-GATE via opens; a A_PDF_VCI_FILL32_9S101_0003_1 step for enabling NC detection of GATECNT-GATE via opens; a A_PDF_VCI_FILL64_9S101_0003_1 step for enabling NC detection of GATECNT-GATE via opens; a A_PDF_VCI_FILL8_9S107_0003_1 step for enabling NC detection of GATECNT-GATE via opens; a A_PDF_VCI_FILL16_9S107_0002_1 step for enabling NC detection of GATECNT-GATE via opens; a A_PDF_VCI_FILL32_9S107_0003_1 step for enabling NC detection of GATECNT-GATE via opens; a A_PDF_VCI_FILL64_9S107_0003_1 step for enabling NC detection of GATECNT-GATE via opens; a A_PDF_VCI_FILL8_9S111_0001_1 step for enabling NC detection of GATECNT-GATE via opens; a A_PDF_VCI_FILL16_9S111_0001_1 step for enabling NC detection of GATECNT-GATE via opens; a A_PDF_VCI_FILL32_9S111_0001_1 step for enabling NC detection of GATECNT-GATE via opens; and a A_PDF_VCI_FILL64_9S111_0001_1 step for enabling NC detection of GATECNT-GATE via opens. In some embodiments, the first and second steps for enabling NC detection of GATECNT-GATE via opens are both selected from the list consisting of: a C_V682_PDF_VCI_16_2000140_01 step for enabling NC detection of GATECNT-GATE via opens; a C_V682_PDF_VCI_16_2002240_34 step for enabling NC detection of GATECNT-GATE via opens; a C_V682_PDF_VCI_16_2004340_67 step for enabling NC detection of GATECNT-GATE via opens; a C_V682_PDF_VCI_16_2000146_01 step for enabling NC detection of GATECNT-GATE via opens; a C_V682_PDF_VCI_16_2002246_34 step for enabling NC detection of GATECNT-GATE via opens; and a C_V682_PDF_VCI_16_2004346_67 step for enabling NC detection of GATECNT-GATE via opens. In some embodiments, the first and second steps for enabling NC detection of GATECNT-GATE via opens are both selected from the list consisting of: a D_PDF_VCI_VFILL4_12S01_0105_1 step for enabling NC detection of GATECNT-GATE via opens; a D_PDF_VCI_VFILL4_12S01_0037_1 step for enabling NC detection of GATECNT-GATE via opens; a D_PDF_VCI_VFILL4_12S01_0034_1 step for enabling NC detection of GATECNT-GATE via opens; a D_PDF_VCI_VFILL4_12S01_0097_1 step for enabling NC detection of GATECNT-GATE via opens; a D_PDF_VCI_VFILL4_12S01_0088_1 step for enabling NC detection of GATECNT-GATE via opens; a D_PDF_VCI_VFILL4_12S01_0087_1 step for enabling NC detection of GATECNT-GATE via opens; a D_PDF_VCI_VFILL4_12S01_0019_1 step for enabling NC detection of GATECNT-GATE via opens; a D_PDF_VCI_VFILL4_12S01_0083_1 step for enabling NC detection of GATECNT-GATE via opens; a D_PDF_VCI_VFILL4_12S01_0008_1 step for enabling NC detection of GATECNT-GATE via opens; a D_PDF_VCI_VFILL4_12S01_0070_1 step for enabling NC detection of GATECNT-GATE via opens; a D_PDF_VCI_VFILL4_12S01_0001_1 step for enabling NC detection of GATECNT-GATE via opens; a D_PDF_VCI_VFILL4_12S01_0065_1 step for enabling NC detection of GATECNT-GATE via opens; and a D_PDF_VCI_VFILL4_12S01_0052_1 step for enabling NC detection of GATECNT-GATE via opens. In some embodiments, the first and second steps for enabling NC detection of GATECNT-GATE via opens are both selected from the list consisting of: a E_PDF_VCI_FILL8_17S1_0053_1 step for enabling NC detection of GATECNT-GATE via opens; a E_PDF_VCI_FILL8_17S1_0051_1 step for enabling NC detection of GATECNT-GATE via opens; a E_PDF_VCI_FILL8_17S1_0026_1 step for enabling NC detection of GATECNT-GATE via opens; a E_PDF_VCI_FILL8_17S1_0022_1 step for enabling NC detection of GATECNT-GATE via opens; a E_PDF_VCI_FILL8_17S1_0021_1 step for enabling NC detection of GATECNT-GATE via opens; a E_PDF_VCI_FILL8_17S1_0020_1 step for enabling NC detection of GATECNT-GATE via opens; a E_PDF_VCI_FILL8_17S1_0019_1 step for enabling NC detection of GATECNT-GATE via opens; a E_PDF_VCI_FILL8_17S1_0018_1 step for enabling NC detection of GATECNT-GATE via opens; a E_PDF_VCI_FILL8_17S1_0017_1 step for enabling NC detection of GATECNT-GATE via opens; a E_PDF_VCI_FILL8_17S1_0008_1 step for enabling NC detection of GATECNT-GATE via opens; a E_PDF_VCI_FILL8_17S1_0007_1 step for enabling NC detection of GATECNT-GATE via opens; a E_PDF_VCI_FILL8_17S1_0006_1 step for enabling NC detection of GATECNT-GATE via opens; and a E_PDF_VCI_FILL8_17S1_0005_1 step for enabling NC detection of GATECNT-GATE via opens. In some embodiments, the first and second steps for enabling NC detection of GATECNT-GATE via opens are both selected from the list consisting of: a F_PDF_VCI_FILL08_24S1_0084_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL08_24S2_0047_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL64_24S1_0080_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL64_24S1_0079_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL64_24S1_0078_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL64_24S1_0076_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL08_24S1_0077_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL08_24S1_0076_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL08_24S1_0075_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL08_24S1_0073_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL64_24S1_0060_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL64_24S1_0059_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL64_24S1_0058_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL64_24S2_0025_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL64_24S1_0056_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL08_24S1_0057_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL64_24S2_0023_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL08_24S1_0056_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL64_24S1_0054_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL08_24S1_0055_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL08_24S2_0017_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL08_24S1_0053_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL08_24S2_0016_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL08_24S1_0051_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL32_24S1_0084_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL32_24S2_0045_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL32_24S1_0077_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL32_24S1_0076_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL32_24S1_0075_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL32_24S1_0073_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL32_24S1_0057_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL32_24S1_0056_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL32_24S1_0055_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL32_24S2_0033_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL32_24S1_0053_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL32_24S2_0031_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL32_24S1_0051_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL16_24S1_0043_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL16_24S2_0035_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL16_24S1_0036_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL16_24S1_0035_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL16_24S1_0034_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL16_24S1_0032_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL16_24S1_0016_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL16_24S1_0015_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL16_24S1_0014_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL16_24S2_0037_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL16_24S1_0012_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL16_24S2_0036_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL16_24S1_0010_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL64_24S1_0003_1 step for enabling NC detection of GATECNT-GATE via opens; a F_PDF_VCI_FILL64_24S2_0045_1 step for enabling NC detection of GATECNT-GATE via opens; and a F_PDF_VCI_FILL08_24S2_0043_1 step for enabling NC detection of GATECNT-GATE via opens. In some embodiments, the first and second steps for enabling NC detection of GATECNT-GATE via opens are both selected from the list consisting of: a G_V931_PDF_VCI_20001AC_01 step for enabling NC detection of GATECNT-GATE via opens; a G_V931_PDF_VCI_2000DAC_13 step for enabling NC detection of GATECNT-GATE via opens; a G_V931_PDF_VCI_20019AC_25 step for enabling NC detection of GATECNT-GATE via opens; a H_PDF_VCI_V16_14S1_08 step for enabling NC detection of GATECNT-GATE via opens; a H_PDF_VCI_V16_14S1_09 step for enabling NC detection of GATECNT-GATE via opens; a H_PDF_VCI_V16_14S1_10 step for enabling NC detection of GATECNT-GATE via opens; and a H_PDF_VCI_V16_14S1_13 step for enabling NC detection of GATECNT-GATE via opens. In some embodiments, the first and second steps for enabling NC detection of GATECNT-GATE via opens are both selected from the list consisting of: a I_V421_VCI_20S3000123_001 step for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3000223_002 step for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3000124_001 step for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3000224_002 step for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3000125_001 step for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3000225_002 step for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3000127_001 step for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3001227_018 step for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3002327_035 step for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3002427_036 step for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3003527_053 step for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3004627_070 step for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3000128_001 step for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3000D28_013 step for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3001928_025 step for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3001A28_026 step for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3002628_038 step for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3003228_050 step for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3000126_001 step for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3001226_018 step for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3002326_035 step for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3002426_036 step for enabling NC detection of GATECNT-GATE via opens; a I_V421_VCI_20S3003526_053 step for enabling NC detection of GATECNT-GATE via opens; and a I_V421_VCI_20S3004626_070 step for enabling NC detection of GATECNT-GATE via opens. In some embodiments, the first and second steps for enabling NC detection of GATECNT-GATE via opens are both selected from the list consisting of: a J_PDF_VCI_VFILLCV4_7S101_1_1 step for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S101_31_1 step for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S102_63_1 step for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S102_92_1 step for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S102_93_1 step for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S111_282_1 step for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S111_311_1 step for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S111_312_1 step for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S112_313_1 step for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S112_342_1 step for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S112_343_1 step for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S113_344_1 step for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S113_373_1 step for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S113_374_1 step for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S114_375_1 step for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S114_404_1 step for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S114_405_1 step for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV8_7S270_0046_1 step for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV8_7S270_0001_1 step for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S108_140_1 step for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S108_142_1 step for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S108_171_1 step for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S109_208_1 step for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S109_210_1 step for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S109_244_1 step for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S110_245_1 step for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S110_247_1 step for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV4_7S110_281_1 step for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV8_7S271_0083_1 step for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV8_7S271_0002_1 step for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_VFILLCV8_7S271_0001_1 step for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_FILL8_1_1 step for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_FILL8_2_1 step for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_FILL8_19_1 step for enabling NC detection of GATECNT-GATE via opens; a J_PDF_VCI_FILL8_28_1 step for enabling NC detection of GATECNT-GATE via opens; and a J_PDF_VCI_FILL8_29_1 step for enabling NC detection of GATECNT-GATE via opens. In some embodiments, the first and second steps for enabling NC detection of GATECNT-GATE via opens are both selected from the list consisting of: a K_V549_PDF_VCI_300012B_01 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_300102B_16 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3001F2B_31 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2000158_01 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2002458_36 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2004758_71 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_300012C_01 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_300102C_16 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3001F2C_31 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3000128_01 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3001028_16 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3001F28_31 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3002028_32 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3002F28_47 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3003E28_62 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2000100_01 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2001000_16 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2001F00_31 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_200015A_01 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_200175A_23 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2002D5A_45 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3000127_01 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3001027_16 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3001F27_31 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3002027_32 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3002F27_47 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3003E27_62 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3003F27_63 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3004E27_78 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3005D27_93 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2000101_01 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2001101_17 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2002101_33 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2001003_16 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2000103_01 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2001F03_31 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_20001C3_01 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2000AC3_10 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_20013C3_19 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_20001C4_01 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2000AC4_10 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_20013C4_19 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_20001C5_01 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2000AC5_10 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_20013C5_19 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2000194_01 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2001794_23 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_2002D94_45 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3000136_01 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3000D36_13 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3001936_25 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3001A36_26 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3002636_38 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3003236_50 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3003336_51 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3003F36_63 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3004B36_75 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3004C36_76 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3005836_88 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3006436_100 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3000137_01 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3000D37_13 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3001937_25 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3001A37_26 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3002637_38 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3003237_50 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3003337_51 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3003F37_63 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3004B37_75 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3004C37_76 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3005837_88 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_3006437_100 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_20001A8_01 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_20017A8_23 step for enabling NC detection of GATECNT-GATE via opens; a K_V549_PDF_VCI_20018A8_24 step for enabling NC detection of GATECNT-GATE via opens; and a K_V549_PDF_VCI_2002EA8_46 step for enabling NC detection of GATECNT-GATE via opens. In some embodiments, the first and second steps for enabling NC detection of GATECNT-GATE via opens are both selected from the list consisting of: a L_V54C_B_PDF_VCI_100012E_01 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_B_PDF_VCI_100172E_23 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_B_PDF_VCI_100012C_01 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_B_PDF_VCI_100242C_36 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_B_PDF_VCI_100472C_71 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_300012B_01 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_300102B_16 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3001F2B_31 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_300012C_01 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_300102C_16 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3001F2C_31 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3000127_01 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3001027_16 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3001F27_31 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3002027_32 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3002F27_47 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3003E27_62 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3003F27_63 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3004E27_78 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3005D27_93 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3000128_01 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3001028_16 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3001F28_31 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3002028_32 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3002F28_47 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3003E28_62 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3000136_01 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3000D36_13 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3001936_25 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3001A36_26 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3002636_38 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3003236_50 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3003336_51 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3003F36_63 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3004B36_75 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3004C36_76 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3005836_88 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_3006436_100 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_2000100_01 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_2001000_16 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_2001F00_31 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_2000101_01 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_2000601_06 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_2000B01_11 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_2000103_01 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_2001003_16 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_2001F03_31 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_20001A8_01 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_20017A8_23 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_20018A8_24 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_2002EA8_46 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_20001C3_01 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_2000AC3_10 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_20013C3_19 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_20001C4_01 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_2000AC4_10 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_20013C4_19 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_20001C5_01 step for enabling NC detection of GATECNT-GATE via opens; a L_V54C_M_PDF_VCI_2000AC5_10 step for enabling NC detection of GATECNT-GATE via opens; and a L_V54C_M_PDF_VCI_20013C5_19 step for enabling NC detection of GATECNT-GATE via opens. In some embodiments, the first and second steps for enabling NC detection of GATECNT-GATE via opens are both selected from the list consisting of: a M_V54B_PDF_VCI_100012E_01 step for enabling NC detection of GATECNT-GATE via opens; a M_V54B_PDF_VCI_100172E_23 step for enabling NC detection of GATECNT-GATE via opens; and a M_V54B_PDF_VCI_100182E_24 step for enabling NC detection of GATECNT-GATE via opens. And in some embodiments, step (a) further includes patterning at least three additional fill cells selected from the list consisting of: AA-tip-to-tip-short-configured, NCEM-enabled fill cells; AACNT-tip-to-tip-short-configured, NCEM-enabled fill cells; AACNT-AA-tip-to-tip-short-configured, NCEM-enabled fill cells; TS-tip-to-tip-short-configured, NCEM-enabled fill cells; GATE-tip-to-tip-short-configured, NCEM-enabled fill cells; GATECNT-GATE-tip-to-tip-short-configured, NCEM-enabled fill cells; GATECNT-tip-to-tip-short-configured, NCEM-enabled fill cells; GATECNT-AACNT-tip-to-tip-short-configured, NCEM-enabled fill cells; M1-tip-to-tip-short-configured, NCEM-enabled fill cells; V0-tip-to-tip-short-configured, NCEM-enabled fill cells; M1-V0-tip-to-tip-short-configured, NCEM-enabled fill cells; V1-M1-tip-to-tip-short-configured, NCEM-enabled fill cells; V1-tip-to-tip-short-configured, NCEM-enabled fill cells; M2-tip-to-tip-short-configured, NCEM-enabled fill cells; M2-V1-tip-to-tip-short-configured, NCEM-enabled fill cells; V2-M2-tip-to-tip-short-configured, NCEM-enabled fill cells; M3-tip-to-tip-short-configured, NCEM-enabled fill cells; V2-tip-to-tip-short-configured, NCEM-enabled fill cells; M3-V2-tip-to-tip-short-configured, NCEM-enabled fill cells; AA-tip-to-side-short-configured, NCEM-enabled fill cells; AACNT-tip-to-side-short-configured, NCEM-enabled fill cells; AACNT-AA-tip-to-side-short-configured, NCEM-enabled fill cells; GATE-AA-tip-to-side-short-configured, NCEM-enabled fill cells; GATECNT-GATE-tip-to-side-short-configured, NCEM-enabled fill cells; GATECNT-tip-to-side-short-configured, NCEM-enabled fill cells; TS-GATECNT-tip-to-side-short-configured, NCEM-enabled fill cells; GATECNT-AACNT-tip-to-side-short-configured, NCEM-enabled fill cells; M1-tip-to-side-short-configured, NCEM-enabled fill cells; V0-tip-to-side-short-configured, NCEM-enabled fill cells; M1-V0-tip-to-side-short-configured, NCEM-enabled fill cells; V1-M1-tip-to-side-short-configured, NCEM-enabled fill cells; V1-tip-to-side-short-configured, NCEM-enabled fill cells; M2-tip-to-side-short-configured, NCEM-enabled fill cells; M2-V1-tip-to-side-short-configured, NCEM-enabled fill cells; V2-M2-tip-to-side-short-configured, NCEM-enabled fill cells; M3-tip-to-side-short-configured, NCEM-enabled fill cells; V2-tip-to-side-short-configured, NCEM-enabled fill cells; M3-V2-tip-to-side-short-configured, NCEM-enabled fill cells; AA-side-to-side-short-configured, NCEM-enabled fill cells; AACNT-side-to-side-short-configured, NCEM-enabled fill cells; AACNT-AA-side-to-side-short-configured, NCEM-enabled fill cells; AACNT-GATE-side-to-side-short-configured, NCEM-enabled fill cells; GATE-side-to-side-short-configured, NCEM-enabled fill cells; GATECNT-GATE-side-to-side-short-configured, NCEM-enabled fill cells; TS-GATE-side-to-side-short-configured, NCEM-enabled fill cells; GATECNT-side-to-side-short-configured, NCEM-enabled fill cells; GATECNT-AACNT-side-to-side-short-configured, NCEM-enabled fill cells; M1-side-to-side-short-configured, NCEM-enabled fill cells; V0-side-to-side-short-configured, NCEM-enabled fill cells; M1-V0-side-to-side-short-configured, NCEM-enabled fill cells; V1-M1-side-to-side-short-configured, NCEM-enabled fill cells; V1-side-to-side-short-configured, NCEM-enabled fill cells; M2-side-to-side-short-configured, NCEM-enabled fill cells; M2-V1-side-to-side-short-configured, NCEM-enabled fill cells; V2-M2-side-to-side-short-configured, NCEM-enabled fill cells; M3-side-to-side-short-configured, NCEM-enabled fill cells; V2-side-to-side-short-configured, NCEM-enabled fill cells; M3-V2-side-to-side-short-configured, NCEM-enabled fill cells; AA-L-shape-interlayer-short-configured, NCEM-enabled fill cells; AACNT-L-shape-interlayer-short-configured, NCEM-enabled fill cells; AACNT-AA-L-shape-interlayer-short-configured, NCEM-enabled fill cells; GATE-AA-L-shape-interlayer-short-configured, NCEM-enabled fill cells; GATE-TS-L-shape-interlayer-short-configured, NCEM-enabled fill cells; GATECNT-GATE-L-shape-interlayer-short-configured, NCEM-enabled fill cells; GATECNT-AA-L-shape-interlayer-short-configured, NCEM-enabled fill cells; GATECNT-TS-L-shape-interlayer-short-configured, NCEM-enabled fill cells; GATECNT-AACNT-L-shape-interlayer-short-configured, NCEM-enabled fill cells; V0-AA-L-shape-interlayer-short-configured, NCEM-enabled fill cells; V0-TS-L-shape-interlayer-short-configured, NCEM-enabled fill cells; V0-AACNT-L-shape-interlayer-short-configured, NCEM-enabled fill cells; V0-GATE-L-shape-interlayer-short-configured, NCEM-enabled fill cells; V0-GATECNT-L-shape-interlayer-short-configured, NCEM-enabled fill cells; M1-AACNT-L-shape-interlayer-short-configured, NCEM-enabled fill cells; M1-GATECNT-L-shape-interlayer-short-configured, NCEM-enabled fill cells; M1-V0-L-shape-interlayer-short-configured, NCEM-enabled fill cells; V1-M1-L-shape-interlayer-short-configured, NCEM-enabled fill cells; V1-V0-L-shape-interlayer-short-configured, NCEM-enabled fill cells; M2-M1-L-shape-interlayer-short-configured, NCEM-enabled fill cells; M2-V1-L-shape-interlayer-short-configured, NCEM-enabled fill cells; V2-V1-L-shape-interlayer-short-configured, NCEM-enabled fill cells; V2-M2-L-shape-interlayer-short-configured, NCEM-enabled fill cells; M3-M2-L-shape-interlayer-short-configured, NCEM-enabled fill cells; M3-V2-L-shape-interlayer-short-configured, NCEM-enabled fill cells; AA-diagonal-short-configured, NCEM-enabled fill cells; TS-diagonal-short-configured, NCEM-enabled fill cells; AACNT-diagonal-short-configured, NCEM-enabled fill cells; AACNT-AA-diagonal-short-configured, NCEM-enabled fill cells; GATE-diagonal-short-configured, NCEM-enabled fill cells; GATE-AACNT-diagonal-short-configured, NCEM-enabled fill cells; GATECNT-GATE-diagonal-short-configured, NCEM-enabled fill cells; GATECNT-diagonal-short-configured, NCEM-enabled fill cells; GATECNT-AACNT-diagonal-short-configured, NCEM-enabled fill cells; M1-diagonal-short-configured, NCEM-enabled fill cells; V0-diagonal-short-configured, NCEM-enabled fill cells; M1-V0-diagonal-short-configured, NCEM-enabled fill cells; V1-M1-diagonal-short-configured, NCEM-enabled fill cells; V1-diagonal-short-configured, NCEM-enabled fill cells; M2-diagonal-short-configured, NCEM-enabled fill cells; M2-V1-diagonal-short-configured, NCEM-enabled fill cells; M3-diagonal-short-configured, NCEM-enabled fill cells; V2-M2-diagonal-short-configured, NCEM-enabled fill cells; V2-diagonal-short-configured, NCEM-enabled fill cells; M3-V2-diagonal-short-configured, NCEM-enabled fill cells; AA-corner-short-configured, NCEM-enabled fill cells; AACNT-corner-short-configured, NCEM-enabled fill cells; AACNT-AA-corner-short-configured, NCEM-enabled fill cells; GATE-corner-short-configured, NCEM-enabled fill cells; GATECNT-GATE-corner-short-configured, NCEM-enabled fill cells; GATECNT-TS-corner-short-configured, NCEM-enabled fill cells; GATECNT-corner-short-configured, NCEM-enabled fill cells; GATECNT-AACNT-corner-short-configured, NCEM-enabled fill cells; M1-corner-short-configured, NCEM-enabled fill cells; V0-corner-short-configured, NCEM-enabled fill cells; M1-V0-corner-short-configured, NCEM-enabled fill cells; V1-M1-corner-short-configured, NCEM-enabled fill cells; V1-corner-short-configured, NCEM-enabled fill cells; M2-corner-short-configured, NCEM-enabled fill cells; M2-V1-corner-short-configured, NCEM-enabled fill cells; M3-corner-short-configured, NCEM-enabled fill cells; V2-M2-corner-short-configured, NCEM-enabled fill cells; V2-corner-short-configured, NCEM-enabled fill cells; M3-V2-corner-short-configured, NCEM-enabled fill cells; GATE-AA-interlayer-overlap-short-configured, NCEM-enabled fill cells; GATE-AACNT-interlayer-overlap-short-configured, NCEM-enabled fill cells; GATE-TS-interlayer-overlap-short-configured, NCEM-enabled fill cells; GATECNT-TS-interlayer-overlap-short-configured, NCEM-enabled fill cells; GATECNT-AA-interlayer-overlap-short-configured, NCEM-enabled fill cells; V0-AA-interlayer-overlap-short-configured, NCEM-enabled fill cells; V0-AACNT-interlayer-overlap-short-configured, NCEM-enabled fill cells; V0-TS-interlayer-overlap-short-configured, NCEM-enabled fill cells; V0-GATE-interlayer-overlap-short-configured, NCEM-enabled fill cells; M1-GATECNT-interlayer-overlap-short-configured, NCEM-enabled fill cells; M1-AACNT-interlayer-overlap-short-configured, NCEM-enabled fill cells; V1-V0-interlayer-overlap-short-configured, NCEM-enabled fill cells; M2-M1-interlayer-overlap-short-configured, NCEM-enabled fill cells; V2-V1-interlayer-overlap-short-configured, NCEM-enabled fill cells; M3-M2-interlayer-overlap-short-configured, NCEM-enabled fill cells; V0-GATECNT-via-chamfer-short-configured, NCEM-enabled fill cells; V0-AACNT-via-chamfer-short-configured, NCEM-enabled fill cells; V1-M1-via-chamfer-short-configured, NCEM-enabled fill cells; V2-M2-via-chamfer-short-configured, NCEM-enabled fill cells; V0-merged-via-short-configured, NCEM-enabled fill cells; V1-merged-via-short-configured, NCEM-enabled fill cells; V2-merged-via-short-configured, NCEM-enabled fill cells; AA-snake-open-configured, NCEM-enabled fill cells; TS-snake-open-configured, NCEM-enabled fill cells; AACNT-snake-open-configured, NCEM-enabled fill cells; GATE-snake-open-configured, NCEM-enabled fill cells; GATECNT-snake-open-configured, NCEM-enabled fill cells; V0-snake-open-configured, NCEM-enabled fill cells; M1-snake-open-configured, NCEM-enabled fill cells; V1-snake-open-configured, NCEM-enabled fill cells; M2-snake-open-configured, NCEM-enabled fill cells; V2-snake-open-configured, NCEM-enabled fill cells; M3-snake-open-configured, NCEM-enabled fill cells; AA-stitch-open-configured, NCEM-enabled fill cells; TS-stitch-open-configured, NCEM-enabled fill cells; AACNT-stitch-open-configured, NCEM-enabled fill cells; GATECNT-stitch-open-configured, NCEM-enabled fill cells; V0-stitch-open-configured, NCEM-enabled fill cells; M1-stitch-open-configured, NCEM-enabled fill cells; V1-stitch-open-configured, NCEM-enabled fill cells; M2-stitch-open-configured, NCEM-enabled fill cells; V2-stitch-open-configured, NCEM-enabled fill cells; M3-stitch-open-configured, NCEM-enabled fill cells; AACNT-TS-via-open-configured, NCEM-enabled fill cells; AACNT-AA-via-open-configured, NCEM-enabled fill cells; TS-AA-via-open-configured, NCEM-enabled fill cells; V0-GATECNT-via-open-configured, NCEM-enabled fill cells; V0-AA-via-open-configured, NCEM-enabled fill cells; V0-TS-via-open-configured, NCEM-enabled fill cells; V0-AACNT-via-open-configured, NCEM-enabled fill cells; V0-GATE-via-open-configured, NCEM-enabled fill cells; V0-via-open-configured, NCEM-enabled fill cells; M1-V0-via-open-configured, NCEM-enabled fill cells; V1-M1-via-open-configured, NCEM-enabled fill cells; V1-M2-via-open-configured, NCEM-enabled fill cells; M1-GATECNT-via-open-configured, NCEM-enabled fill cells; M1-AANCT-via-open-configured, NCEM-enabled fill cells; V2-M2-via-open-configured, NCEM-enabled fill cells; V2-M3-via-open-configured, NCEM-enabled fill cells; M1-metal-island-open-configured, NCEM-enabled fill cells; M2-metal-island-open-configured, NCEM-enabled fill cells; M3-metal-island-open-configured, NCEM-enabled fill cells; V0-merged-via-open-configured, NCEM-enabled fill cells; V0-AACNT-merged-via-open-configured, NCEM-enabled fill cells; V0-GATECNT-merged-via-open-configured, NCEM-enabled fill cells; V1-merged-via-open-configured, NCEM-enabled fill cells; V2-merged-via-open-configured, NCEM-enabled fill cells; V1-M1-merged-via-open-configured, NCEM-enabled fill cells; and V2-M2-merged-via-open-configured, NCEM-enabled fill cells.
To provide a more complete understanding of the present disclosure and features and advantages thereof, reference is made to the following set of figures, taken in conjunction with the accompanying description, in which:
[Note regarding the figures in this application, as well as in the '463 provisional application and the incorporated '256, '267, and '274 parent applications: Those figures numbered 52[A,B,C], 53[A,B,C], et seq. are to-scale layouts of the exemplified cells. While certain detail in these layouts may be difficult to see on the application or patent as published, persons skilled in the art will appreciate that the SCORE tab in USPTO's Public PAIR system provides access to the applicant's PDF drawings, as originally uploaded, which can be electronically downloaded and blown up to reveal any level of desired detail.]
FIG. 9AAA depicts an exemplary mesh-style, NCEM-enabled pad, formed from a 10×9 grid of double-patterned GATECNT and single-patterned AACNT stripes, with an overlying, non-solid, double-patterned M1 pad, and a plurality of V0 vias positioned at GATECNT-AACNT junction points;
FIG. 9BBB depicts an exemplary mesh-style, NCEM-enabled pad, formed from a 10×9 grid of single-patterned GATECNT and double-patterned AACNT stripes, with an overlying, non-solid, double-patterned M1 pad, and a plurality of V0 vias positioned at GATECNT-AACNT junction points;
FIG. 9CCC depicts an exemplary mesh-style, NCEM-enabled pad, formed from a 10×9 grid of double-patterned GATECNT and double-patterned AACNT stripes, with an overlying, non-solid, double-patterned M1 pad, and a plurality of V0 vias positioned at GATECNT-AACNT junction points;
FIG. 9DDD depicts an exemplary mesh-style, NCEM-enabled pad, formed from a 10×9 grid of triple-patterned GATECNT and single-patterned AACNT stripes, with an overlying, non-solid, double-patterned M1 pad, and a plurality of V0 vias positioned at GATECNT-AACNT junction points;
FIG. 9EEE depicts an exemplary mesh-style, NCEM-enabled pad, formed from a 10×9 grid of triple-patterned GATECNT and double-patterned AACNT stripes, with an overlying, non-solid, double-patterned M1 pad, and a plurality of V0 vias positioned at GATECNT-AACNT junction points;
FIG. 9FFF depicts an exemplary mesh-style, NCEM-enabled pad, formed from a 10×9 grid of single-patterned GATECNT and triple-patterned AACNT stripes, with an overlying, non-solid, double-patterned M1 pad, and a plurality of V0 vias positioned at GATECNT-AACNT junction points;
FIG. 9GGG depicts an exemplary mesh-style, NCEM-enabled pad, formed from a 10×9 grid of double-patterned GATECNT and triple-patterned AACNT stripes, with an overlying, non-solid, double-patterned M1 pad, and a plurality of V0 vias positioned at GATECNT-AACNT junction points;
FIG. 9HHH depicts an exemplary mesh-style, NCEM-enabled pad, formed from a 10×9 grid of triple-patterned GATECNT and triple-patterned AACNT stripes, with an overlying, non-solid, double-patterned M1 pad, and a plurality of V0 vias positioned at GATECNT-AACNT junction points;
FIG. 9III depicts an exemplary mesh-style, NCEM-enabled pad, formed from a 10×9 grid of single-patterned GATECNT and single-patterned AACNT stripes, with an overlying, non-solid, double-patterned M1 pad, and a plurality of V0 vias positioned to avoid GATECNT-AACNT junction points;
FIG. 9JJJ depicts an exemplary mesh-style, NCEM-enabled pad, formed from a 10×9 grid of double-patterned GATECNT and single-patterned AACNT stripes, with an overlying, non-solid, double-patterned M1 pad, and a plurality of V0 vias positioned to avoid GATECNT-AACNT junction points;
FIG. 9KKK depicts an exemplary mesh-style, NCEM-enabled pad, formed from a 10×9 grid of single-patterned GATECNT and double-patterned AACNT stripes, with an overlying, non-solid, double-patterned M1 pad, and a plurality of V0 vias positioned to avoid GATECNT-AACNT junction points;
FIG. 9LLL depicts an exemplary mesh-style, NCEM-enabled pad, formed from a 10×9 grid of double-patterned GATECNT and double-patterned AACNT stripes, with an overlying, non-solid, double-patterned M1 pad, and a plurality of V0 vias positioned to avoid GATECNT-AACNT junction points;
FIG. 9MMM depicts an exemplary mesh-style, NCEM-enabled pad, formed from a 10×9 grid of triple-patterned GATECNT and single-patterned AACNT stripes, with an overlying, non-solid, double-patterned M1 pad, and a plurality of V0 vias positioned to avoid GATECNT-AACNT junction points;
FIG. 9NNN depicts an exemplary mesh-style, NCEM-enabled pad, formed from a 10×9 grid of triple-patterned GATECNT and double-patterned AACNT stripes, with an overlying, non-solid, double-patterned M1 pad, and a plurality of V0 vias positioned to avoid GATECNT-AACNT junction points;
FIG. 9OOO depicts an exemplary mesh-style, NCEM-enabled pad, formed from a 10×9 grid of single-patterned GATECNT and triple-patterned AACNT stripes, with an overlying, non-solid, double-patterned M1 pad, and a plurality of V0 vias positioned to avoid GATECNT-AACNT junction points;
FIG. 9PPP depicts an exemplary mesh-style, NCEM-enabled pad, formed from a 10×9 grid of double-patterned GATECNT and triple-patterned AACNT stripes, with an overlying, non-solid, double-patterned M1 pad, and a plurality of V0 vias positioned to avoid GATECNT-AACNT junction points;
FIG. 9QQQ depicts an exemplary mesh-style, NCEM-enabled pad, formed from a 10×9 grid of triple-patterned GATECNT and triple-patterned AACNT stripes, with an overlying, non-solid, double-patterned M1 pad, and a plurality of V0 vias positioned to avoid GATECNT-AACNT junction points;
FIG. 9RRR depicts an exemplary mesh-style, NCEM-enabled pad, formed from a 10×9 grid of single-patterned GATECNT and single-patterned AACNT stripes, with an overlying, non-solid, triple-patterned M1 pad, and a plurality of V0 vias positioned at GATECNT-AACNT junction points;
FIG. 9SSS depicts an exemplary mesh-style, NCEM-enabled pad, formed from a 10×9 grid of double-patterned GATECNT and single-patterned AACNT stripes, with an overlying, non-solid, triple-patterned M1 pad, and a plurality of V0 vias positioned at GATECNT-AACNT junction points;
FIG. 9TTT depicts an exemplary mesh-style, NCEM-enabled pad, formed from a 10×9 grid of single-patterned GATECNT and double-patterned AACNT stripes, with an overlying, non-solid, triple-patterned M1 pad, and a plurality of V0 vias positioned at GATECNT-AACNT junction points;
FIG. 9UUU depicts an exemplary mesh-style, NCEM-enabled pad, formed from a 10×9 grid of double-patterned GATECNT and double-patterned AACNT stripes, with an overlying, non-solid, triple-patterned M1 pad, and a plurality of V0 vias positioned at GATECNT-AACNT junction points;
FIG. 9VVV depicts an exemplary mesh-style, NCEM-enabled pad, formed from a 10×9 grid of triple-patterned GATECNT and single-patterned AACNT stripes, with an overlying, non-solid, triple-patterned M1 pad, and a plurality of V0 vias positioned at GATECNT-AACNT junction points;
FIG. 9WWW depicts an exemplary mesh-style, NCEM-enabled pad, formed from a 10×9 grid of triple-patterned GATECNT and double-patterned AACNT stripes, with an overlying, non-solid, triple-patterned M1 pad, and a plurality of V0 vias positioned at GATECNT-AACNT junction points;
FIG. 9XXX depicts an exemplary mesh-style, NCEM-enabled pad, formed from a 10×9 grid of single-patterned GATECNT and triple-patterned AACNT stripes, with an overlying, non-solid, triple-patterned M1 pad, and a plurality of V0 vias positioned at GATECNT-AACNT junction points;
FIG. 9YYY depicts an exemplary mesh-style, NCEM-enabled pad, formed from a 10×9 grid of double-patterned GATECNT and triple-patterned AACNT stripes, with an overlying, non-solid, triple-patterned M1 pad, and a plurality of V0 vias positioned at GATECNT-AACNT junction points;
FIG. 9ZZZ depicts an exemplary mesh-style, NCEM-enabled pad, formed from a 10×9 grid of triple-patterned GATECNT and triple-patterned AACNT stripes, with an overlying, non-solid, triple-patterned M1 pad, and a plurality of V0 vias positioned at GATECNT-AACNT junction points;
FIG. 9AAAA depicts an exemplary mesh-style, NCEM-enabled pad, formed from a 10×9 grid of single-patterned GATECNT and single-patterned AACNT stripes, with an overlying, non-solid, triple-patterned M1 pad, and a plurality of V0 vias positioned to avoid GATECNT-AACNT junction points;
FIG. 9BBBB depicts an exemplary mesh-style, NCEM-enabled pad, formed from a 10×9 grid of double-patterned GATECNT and single-patterned AACNT stripes, with an overlying, non-solid, triple-patterned M1 pad, and a plurality of V0 vias positioned to avoid GATECNT-AACNT junction points;
FIG. 9CCCC depicts an exemplary mesh-style, NCEM-enabled pad, formed from a 10×9 grid of single-patterned GATECNT and double-patterned AACNT stripes, with an overlying, non-solid, triple-patterned M1 pad, and a plurality of V0 vias positioned to avoid GATECNT-AACNT junction points;
FIG. 9DDDD depicts an exemplary mesh-style, NCEM-enabled pad, formed from a 10×9 grid of double-patterned GATECNT and double-patterned AACNT stripes, with an overlying, non-solid, triple-patterned M1 pad, and a plurality of V0 vias positioned to avoid GATECNT-AACNT junction points;
FIG. 9EEEE depicts an exemplary mesh-style, NCEM-enabled pad, formed from a 10×9 grid of triple-patterned GATECNT and single-patterned AACNT stripes, with an overlying, non-solid, triple-patterned M1 pad, and a plurality of V0 vias positioned to avoid GATECNT-AACNT junction points;
FIG. 9FFFF depicts an exemplary mesh-style, NCEM-enabled pad, formed from a 10×9 grid of triple-patterned GATECNT and double-patterned AACNT stripes, with an overlying, non-solid, triple-patterned M1 pad, and a plurality of V0 vias positioned to avoid GATECNT-AACNT junction points;
FIG. 9GGGG depicts an exemplary mesh-style, NCEM-enabled pad, formed from a 10×9 grid of single-patterned GATECNT and triple-patterned AACNT stripes, with an overlying, non-solid, triple-patterned M1 pad, and a plurality of V0 vias positioned to avoid GATECNT-AACNT junction points;
FIG. 9HHHH depicts an exemplary mesh-style, NCEM-enabled pad, formed from a 10×9 grid of double-patterned GATECNT and triple-patterned AACNT stripes, with an overlying, non-solid, triple-patterned M1 pad, and a plurality of V0 vias positioned to avoid GATECNT-AACNT junction points;
FIG. 9IIII depicts an exemplary mesh-style, NCEM-enabled pad, formed from a 10×9 grid of triple-patterned GATECNT and triple-patterned AACNT stripes, with an overlying, non-solid, triple-patterned M1 pad, and a plurality of V0 vias positioned to avoid GATECNT-AACNT junction points;
Reference is now made to
Reference is now made to
Reference is now made to
Reference is now made to
Reference is now made to
Reference is now made to
As persons skilled in the art will appreciate, the configurations of
Reference is now made to
The substrate preferably comprises a wafer, die, or other portion of monocrystalline silicon, or another substrate suitable for forming semiconductor devices, such as silicon-on-insulator (SOI), Ge, C, GaAs, InP, GaInAs, AlAs, GaSb, (Ga,Mn)As, GaP, GaN, InAS, SiGe, SiSn, CdSe, CdTe, CdHgTe, ZnS, SiC, etc. Generally speaking, the substrate represents the object to which manufacturing steps (e.g., deposition, masking, etching, implantation) are initially applied, and is the object within which, or upon which, switching devices (e.g., FETs, bipolar transistors, photodiodes, magnetic devices, etc.) or storage devices (e.g., charged oxides, capacitors, phase change memories, etc.) are built.
The connector stack is a collection of multiple layers, generally formed on top of the substrate, that supports localized connections between devices in, or on, the substrate, and/or connections to wires in an interconnect stack located above. The layers that make up the connector stack need not be strictly “stacked”; some can be partially or fully co-planar. For example, as illustrated in
The connector stack supports various types of “connectors” and “jumpers,” as illustrated in
Above the connector stack lies the interconnect stack. The interconnect stack is comprised of conductive wiring layers (labeled “m1,” “m2,” etc.—that need only be conductive, not necessarily metallic) with conductive vias (labeled “v1,” “v2,” etc.) that connect adjacent wiring layers. While three wiring layers are shown in
Reference is now made to
The vendor-independent layers of
Indicated in parentheses are the names used to label these layers in
Persons skilled in the art will also understand that most of the above layers can—and often are—rendered in multiple patterning steps. Typically, in this application, the drawings will combine all exposures into a single depicted layer (e.g., M1=M1E1+M1E2, or M1E1+M1E2+M1E3). In most cases, such details are irrelevant to the operation of the invention, and are determined largely by requirements of the fabrication process. In certain cases (e.g., an M1-M1-stitch-overlap-open-configured, NCEM-enabled fill cell), some potentially relevant detail(s) may be obscured by the exposure merging; however, such obscured detail(s) will nonetheless be readily apparent to the skilled artisan (by, for example, the fact that the named structure, e.g., M1-M1-stitch-overlap-open-configured, NCEM-enabled fill cell, must contain at least one overlap test region, as per
Furthermore, short-configured cells can exist in both “same color” and “different color” varieties. For example, in a process that uses multi-patterned M1, the M1-tip-to-tip-configured, NCEM-enabled fill cells would come in two varieties: M1-tip-to-tip-same-color-short-configured cells, as well as M1-tip-to-tip-different-color-short-configured cells. The same applies to other short configurations, such as side-to-side, diagonal, etc.
Reference is now made to
Design of the NCEM-Enabled Fill Cells:
Such fill cells preferably have certain common elements (e.g., height, supply rails, and GATE pitch (CPP) that is consistent with standard cells in the library), then vary according to the measurement type, layer(s) involved, and structure(s) to be evaluated/tested. NCEM-enabled fill cells come in two basic types: short[/leakage] and open[/resistance]. Relevant layers typically involve either a single process layer (e.g., GATE-to-GATE) or two process layers (e.g. GATECNT-to-GATE). Structural configurations are many, and include a set of standard structures (e.g., tip-to-tip, tip-to-side, side-to-side, etc.), as well as reference or ad hoc structures.
As depicted in
As depicted in
In cases where the NCEM-enabled fill cells will be used with a highly regular style cell library, an additional constraint on the NCEM-enabled fill cells is that they preferably conform, as closely as reasonably possible, to the regular patterns used for the library's functional cells. Preferred methods for measuring compliance with regular patterns, and/or constructing pattern-compliant cells, are described in U.S. Pat. Applic. Nos. 61/887,271 (“Template Based Design with LibAnalyzer”) and 62/186,677 (“Template Based Design with LibAnalyzer”), both to Langnese et al., and both incorporated by reference herein. As those skilled in the art will appreciate, close, if not perfect, pattern compliance is feasible for those portions of the fill cell that do not affect the structure(s) or fail mode(s) to be evaluated. In general, however, perfect pattern compliance will prove infeasible for a several reasons. First, the structure to-be-evaluated may not, itself, be an “allowable” pattern (e.g., the pattern rules for the library may not allow any structure that spaces a GATE tip from a GATECNT side at minimum design rule dimensions, thus dictating that the “GATE-GATECNT-tip-to-side-short-configured, NCEM-enabled fill cell” will necessarily include at least one pattern violation). Second, DOEs typically involve several small variations in at least one minimum-spaced dimension, whereas regular patterning rules will typically only permit one of the variants. And third, the patterning used for the NCEM pad is preferably selected to match the operational capabilities of the scanner, but may well violate the library's pattern regularity constraints. Thus, ignoring these “necessary” pattern regularity violations, NCEM-enabled fill cells for use with highly regular libraries will preferably contain very few, if any, additional pattern regularity violations.
Reference is now made to Parent FIGS. 14-15, which depict plan views of two exemplary test area geometries for tip-to-tip-short-configured, NCEM-enabled fill cells. Cells that utilize these geometric configurations may include:
Reference is now made to Parent FIG. 16, which depicts a plan view of exemplary test area geometry for tip-to-side-short-configured, NCEM-enabled fill cells. Cells that utilize this geometric configuration may include:
Reference is now made to Parent FIG. 17, which depicts a plan view of exemplary test area geometry for side-to-side-short-configured, NCEM-enabled fill cells. Cells that utilize this geometric configuration may include:
Reference is now made to Parent FIGS. 18, 19, 20, 21, and 22, each of which depicts a plan view of exemplary test area geometry for L-shape-interlayer-short-configured, NCEM-enabled fill cells. Cells that utilize these geometric configurations may include:
Reference is now made to Parent FIG. 23, which depicts a plan view of exemplary test area geometry for diagonal-short-configured, NCEM-enabled fill cells. Cells that utilize this geometric configuration may include:
Reference is now made to Parent FIGS. 24, 25, and 26, each of which depicts a plan view of exemplary test area geometry for corner-short-configured, NCEM-enabled fill cells. These configurations differ from the diagonal configuration because, in these corner configurations, at least one of the first and/or second features is non-rectangular. Cells that utilize these geometric configurations may include:
Reference is now made to Parent FIG. 27, which depicts a plan view of exemplary test area geometry for interlayer-overlap-short-configured, NCEM-enabled fill cells. Cells that utilize this geometric configuration may include:
Reference is now made to Parent FIG. 28, which depicts a plan view of exemplary test area geometry for via-chamfer-short-configured, NCEM-enabled fill cells. Cells that utilize this geometric configuration may include:
Reference is now made to Parent FIG. 29, which depicts a plan view of exemplary test area geometry for merged-via-short-configured, NCEM-enabled fill cells. Cells that utilize this geometric configuration may include:
Reference is now made to Parent FIG. 30, which depicts a plan view of exemplary test area geometry for snake-open-configured, NCEM-enabled fill cells. Cells that utilize this geometric configuration may include:
Reference is now made to Parent FIGS. 31-32, which each depict plan views of exemplary test area geometries for stitch-open-configured, NCEM-enabled fill cells. Cells that utilize these geometric configurations may include:
Reference is now made to Parent FIG. 33, which depicts a plan view of exemplary test area geometry for via-open-configured, NCEM-enabled fill cells. Cells that utilize this geometric configuration may include:
Reference is now made to Parent FIGS. 34 and 35, which respectively depict plan and cross-sectional views of exemplary test area geometry for metal-island-open-configured, NCEM-enabled fill cells. Cells that utilize this geometric configuration may include:
Reference is now made to Parent FIG. 36, which depicts a plan view of exemplary test area geometry for merged-via-open-configured, NCEM-enabled fill cells. Cells that utilize this geometric configuration may include:
Reference is now made to
Reference is now made to
At FF2, processing of wafers is initiated using the initial product masks. Such processing preferably includes at least FEOL and/or MOL processing, but may also include BEOL processing. Before FF3, NCEM measurements are preferably obtained from some or all of the NCEM-enabled fill cells on the partially-processed initial product wafers.
At FF3, some or all of the obtained NCEM measurements are “used” to continue processing of the initial product wafers. Such “use” may include determining whether to continue or abandon processing of one or more of the wafers, modifying one or more processing, inspection or metrology steps in the continued processing of one or more of the wafers (and/or other product wafers currently being manufactured using process flows relevant to observed manufacturing failures), and/or performing additional processing, metrology or inspection steps on one or more of the wafers (and/or other product wafers currently being manufactured using process flows relevant to observed manufacturing failures).
At FF4, final product masks are produced (or otherwise obtained) “using” at least some of the NCEM measurements obtained during the processing of initial product wafers. Here, such “use” preferably includes selecting and instantiating a second collection of NCEM-enabled fill cells that is better and/or optimally matched to failure modes observed during processing of the initial product wafers. For example, if the first collection of NCEM-enabled fill cells included GATE-side-to-side-short-configured cells, yet no GATE side-to-side shorts were observed during processing of the initial product wafers, then the second collection of NCEM-enabled fill cells would preferably omit GATE-side-to-side-short-configured cells, and instead replace them with other NCEM-enabled fill cells that are better matched to the observed or expected failure modes on the final product wafers.
At FF5, processing of wafers is initiated using the final product masks. Such processing preferably includes at least FEOL and/or MOL processing, but may also include BEOL processing. Before FF6, NCEM measurements are preferably obtained from some or all of the NCEM-enabled fill cells on the partially-processed final product wafers.
At FF6, some or all of the obtained NCEM measurements are “used” to continue processing of the final product wafers. Such “use” may include determining whether to continue or abandon processing of one or more of the wafers, modifying one or more processing, inspection or metrology steps in the continued processing of one or more of the wafers (and/or other product wafers currently being manufactured using process flows relevant to observed manufacturing failures), and/or performing additional processing, metrology or inspection steps on one or more of the wafers (and/or other product wafers currently being manufactured using process flows relevant to observed manufacturing failures).
Reference is now made to
Reference is now made to
At GG2, processing of the test wafer(s) is initiated. Such processing preferably includes FEOL and/or MOL processing, but may also include BEOL processing.
At GG3, NCEM measurements are obtained from NCEM-enabled fill cells on the partially-processed test wafer(s).
At GG4, the obtained measurements are “used” to select a second collection of NCEM-enabled fill cells (preferably a subset of the first collection) for instantiation on product wafers. Here, such “use” preferably includes selecting a second collection of NCEM-enabled fill cells that, given the available fill cell space on the product wafers, is optimally matched to failure modes observed during processing of the test product wafers. For example, if the first collection of NCEM-enabled fill cells included GATE-side-to-side-short-configured cells, yet no GATE side-to-side shorts were observed during processing of test wafers, then the second collection of NCEM-enabled fill cells would preferably omit GATE-side-to-side-short-configured cells.
At GG5, product masks that include the second collection of NCEM-enabled fill cells are produced, or otherwise obtained.
At GG6, processing of the product wafer(s) is initiated. Such processing preferably includes at least FEOL and/or MOL processing, but may also include BEOL processing. Prior to GG7, NCEM measurements are obtained from at least some of the NCEM-enabled fill cells on the partially-processed product wafer(s).
At GG7, some or all of the obtained NCEM measurements are “used” to continue processing of the product wafer(s). Such “use” may include determining whether to continue or abandon processing of one or more of the product wafers, modifying one or more processing, inspection or metrology steps in the continued processing of one or more of the product wafers (and/or other product wafers currently being manufactured using process flows relevant to observed manufacturing failures), and/or performing additional processing, metrology or inspection steps on one or more of the product wafers (and/or other product wafers currently being manufactured using process flows relevant to observed manufacturing failures).
In certain embodiments, FF1-3 and/or GG5-7 could be practiced as stand-alone process flows.
Reference is now made to
Reference is now made to
Reference is now made to
Reference is now made to
Reference is now made to
Reference is now made to
Reference is now made to
Parent FIGS. 1715-1717 depict three variants of the same cell. Parent FIGS. 1716(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1718-1720 depict three variants of the same cell. Parent FIGS. 1719(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1800-1802 depict three variants of the same cell. Parent FIGS. 1801(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1813-1815 depict three variants of the same cell. Parent FIGS. 1814(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1816-1818 depict three variants of the same cell. Parent FIGS. 1817(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1819-1821 depict three variants of the same cell. Parent FIGS. 1820(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1822-1824 depict three variants of the same cell. Parent FIGS. 1823(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1825-1827 depict three variants of the same cell. Parent FIGS. 1826(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1828-1830 depict three variants of the same cell. Parent FIGS. 1829(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1831-1832 depict two variants of the same cell. Parent FIGS. 1831(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1833-1835 depict three variants of the same cell. Parent FIGS. 1833(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1836-1838 depict three variants of the same cell. Parent FIGS. 1836(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1839-1841 depict three variants of the same cell. Parent FIGS. 1839(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1842-1844 depict three variants of the same cell. Parent FIGS. 1842(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1845-1847 depict three variants of the same cell. Parent FIGS. 1845(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1848-1849 depict two variants of the same cell. Parent FIGS. 1848(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1850-1852 depict three variants of the same cell. Parent FIGS. 1850(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1853-1855 depict three variants of the same cell. Parent FIGS. 1853(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1856-1858 depict three variants of the same cell. Parent FIGS. 1856(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1859-1861 depict three variants of the same cell. Parent FIGS. 1859(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1867-1869 depict three variants of the same cell. Parent FIGS. 1868(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1870-1872 depict three variants of the same cell. Parent FIGS. 1871(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1873-1875 depict three variants of the same cell. Parent FIGS. 1874(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1876-1878 depict three variants of the same cell. Parent FIGS. 1877(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1879-1881 depict three variants of the same cell. Parent FIGS. 1880(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1882-1884 depict three variants of the same cell. Parent FIGS. 1883(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1885-1887 depict three variants of the same cell. Parent FIGS. 1886(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1888-1890 depict three variants of the same cell. Parent FIGS. 1889(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1891-1893 depict three variants of the same cell. Parent FIGS. 1892(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1894-1896 depict three variants of the same cell. Parent FIGS. 1895(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1897-1899 depict three variants of the same cell. Parent FIGS. 1898(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1900-1902 depict three variants of the same cell. Parent FIGS. 1901(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1903-1905 depict three variants of the same cell. Parent FIGS. 1904(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1906-1908 depict three variants of the same cell. Parent FIGS. 1907(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1909-1911 depict three variants of the same cell. Parent FIGS. 1910(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1912-1914 depict three variants of the same cell. Parent FIGS. 1913(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1915-1917 depict three variants of the same cell. Parent FIGS. 1916(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1918-1920 depict three variants of the same cell. Parent FIGS. 1919(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1921-1923 depict three variants of the same cell. Parent FIGS. 1922(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1924-1926 depict three variants of the same cell. Parent FIGS. 1925(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1927-1929 depict three variants of the same cell. Parent FIGS. 1928(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1930-1932 depict three variants of the same cell. Parent FIGS. 1931(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1933-1935 depict three variants of the same cell. Parent FIGS. 1934(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1936-1938 depict three variants of the same cell. Parent FIGS. 1937(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1939-1941 depict three variants of the same cell. Parent FIGS. 1940(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1943-1944 depict two variants of the same cell. Parent FIGS. 1943(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1945-1947 depict three variants of the same cell. Parent FIGS. 1946(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1948-1950 depict three variants of the same cell. Parent FIGS. 1949(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1951-1953 depict three variants of the same cell. Parent FIGS. 1952(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1954-1956 depict three variants of the same cell. Parent FIGS. 1955(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1957-1959 depict three variants of the same cell. Parent FIGS. 1958(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1960-1962 depict three variants of the same cell. Parent FIGS. 1961(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1963-1965 depict three variants of the same cell. Parent FIGS. 1964(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1966-1968 depict three variants of the same cell. Parent FIGS. 1967(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1969-1971 depict three variants of the same cell. Parent FIGS. 1970(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1972-1974 depict three variants of the same cell. Parent FIGS. 1973(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1975-1977 depict three variants of the same cell. Parent FIGS. 1976(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1978-1980 depict three variants of the same cell. Parent FIGS. 1979(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1981-1983 depict three variants of the same cell. Parent FIGS. 1982(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1984-1986 depict three variants of the same cell. Parent FIGS. 1985(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1987-1989 depict three variants of the same cell. Parent FIGS. 1988(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1990-1993 depict variants of the same cell. Parent FIGS. 1991(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1994-1996 depict three variants of the same cell. Parent FIGS. 1995(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 1997-1999 depict three variants of the same cell. Parent FIGS. 1998(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 2000-2002 depict three variants of the same cell. Parent FIGS. 2001(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 2003-2005 depict three variants of the same cell. Parent FIGS. 2003(A)-(C) show the nominal case, whereas the other figures represent intentionally misaligned conditions.
Parent FIGS. 203-223, 236-286, 389-397, 404-409, 485-494, 546-548, 552-554, 621-632, 682, 691, 731-734, 762-785, 848-859, 880-903, 1014-1040, 1096-1119, 1189-1200, 1222-1224, 1234-1238, 1249-1263, 1543-1548, 1687-1698, 1870-1872, 1876-1881, 1885-1902, 1912-1947, 1954-1980, 1984-1993, 2003-2005, 2157-2314, 2343-2344, 2357-2374, and 2404-2461 show depictions of NCEM-enabled fill cells without NCEM pads. Persons skilled in the art will understand that pads of any design (e.g.,
Certain of the claims that follow may contain one or more means-plus-function limitations of the form, “a <cell name> means for enabling NC detection of a GATE-tip-to-tip short.” It is applicant's intent that such limitations be construed, pursuant to 35 U.S.C. § 112(f), as “the structure of the named cell, or an equivalent structure, that enables detection of a GATE-tip-to-tip short by non-contact measurement.”
Additionally, certain of the claims that follow may contain one or more step-plus-function limitations of the form, “a <cell name> step for enabling NC detection of a GATE-tip-to-tip short.” It is applicant's intent that such limitations be construed, pursuant to 35 U.S.C. § 112(f), as “enabling voltage contrast detection of a GATE-tip-to-tip short by patterning an instance of the named cell, or an equivalent cell.”
While the invention has been illustrated with respect to one or more specific implementations, numerous alterations and/or modifications can be made to the illustrated examples without departing from the spirit and scope of the appended claims. In addition, while a particular feature of the invention may have been disclosed with respect to only one of several implementations, such feature may be combined with one or more other features of the other implementations as may be desired and advantageous for any given or particular application. Furthermore, to the extent that the terms “including,” “includes,” “having,” “has,” “with,” or variants thereof are used in either the detailed description or the claims, such terms are intended to be inclusive in a manner similar to the term “comprising.” As used herein, the phrase “X comprises one or more of A, B, and C” means that X can include any of the following: either A, B, or C alone; or combinations of two, such as A and B, B and C, and A and C; or combinations of three A, B and C.
This application is a continuation of U.S. patent application Ser. No. 15/090,256, entitled “Integrated Circuit Containing DOEs of NCEM-enabled Fill Cells,” filed Apr. 4, 2016, by applicant PDF Solutions, Inc., which '256 application is incorporated by reference herein. This application is also a continuation of U.S. patent application Ser. No. 15/090,267, entitled “Process for Making Semiconductor Dies, Chips, and Wafers Using In-Line Measurements Obtained From DOEs of NCEM-enabled Fill Cells,” filed Apr. 4, 2016, by applicant PDF Solutions, Inc., which '267 application is incorporated by reference herein. This application is also a continuation of U.S. patent application Ser. No. 15/090,274, entitled “Mesh-Style NCEM Pads, and Process for Making Semiconductor Dies, Chips, and Wafers Using In-Line Measurements from Such Pads,” filed Apr. 4, 2016, by applicant PDF Solutions, Inc., which '274 application is incorporated by reference herein. This application also claims priority from U.S. Pat. Applic. Ser. No. 62/268,463, entitled “Integrated Circuit Containing DOEs of NCEM-enabled Fill Cells+Process for Making Semiconductor Dies, Chips, and Wafers Using In-Line Measurements Obtained From DOEs of NCEM-enabled Fill Cells,” filed Dec. 16, 2015, which '463 application is incorporated by reference herein.
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Number | Date | Country | |
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62268463 | Dec 2015 | US |
Number | Date | Country | |
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Parent | 15090256 | Apr 2016 | US |
Child | 15281491 | US | |
Parent | 15090267 | Apr 2016 | US |
Child | 15090256 | US | |
Parent | 15090274 | Apr 2016 | US |
Child | 15090267 | US |