Method and apparatus for adhesively securing ink jet pen components using thin film adhesives

Information

  • Patent Grant
  • 6758934
  • Patent Number
    6,758,934
  • Date Filed
    Wednesday, November 27, 2002
    21 years ago
  • Date Issued
    Tuesday, July 6, 2004
    19 years ago
Abstract
The invention relates to a method for attaching microelectronic devices, circuit boards and the like to a surface, and is particularly suitable for attaching a plurality of a semiconductor chips to an ink jet pen body. The method includes the steps of (a) providing a sheet of a thin film adhesive material having a first surface and a second surface opposite the first surface, the second surface being releasably attached to a carrier web; (b) simultaneously making a plurality of cuts in the sheet of thin film adhesive material, the cuts extending from the first surface to an interface between the second surface and the carrier web without significantly extending into the carrier web to provide one or more cut portions of adhesive film; (c) removing each cut portion of adhesive film from the carrier web; (d) engaging the second surface of each of the cut portions with predetermined locations on a receiving surface; and (e) providing one or more semiconductor chips in a desirably aligned configuration with respect to the predetermined locations and contacting each semiconductor chip with first surface of each of the cut portions. Use of the method and apparatus of the invention provides significant improvement in the application of adhesive films to surfaces in electronic component assembly.
Description




FIELD OF THE INVENTION




The invention relates to ink jet printers and in particular to methods for assembling ink jet pen components of multi-color pens using thin film adhesives.




BACKGROUND OF THE INVENTION




Ink jet printers are continually undergoing design changes to improve the speed and print quality produced by such printers in order to provide printed images which have the appearance of laser printed media. One important advantage of ink jet printers over that of laser printers is that multi-color images may be produced relatively less expensively than with laser printers. Multicolor images are produced by depositing dots of different colors in precise patterns on the print media. One of the difficulties associated with multicolor printing is that the printheads of the individual ink jet pens used to produce the images must be aligned with each other so that the dot placement errors or minimized. Exact alignment of all critical printhead components during the assembly of an ink jet pen is extremely difficult to achieve. Even if the parts are initially aligned, it is difficult to maintain the alignment throughout the manufacturing process without the use of costly jigs. Even with elaborate alignment equipment, because of the size of the parts, extremely small alignment errors may have a major impact on the performance of the pens in a printer.




The manufacture of a multi-color ink jet is typically a multi-step process. The most common multicolor printer uses individual ink jet pens for each color of ink. The components of the pens including the printheads are aligned and assembled with respect to their pen bodies. The individual pens are then attached to a carriage in side by side relationship. Once the pens are attached to the carriage, the pens may be individually adjusted to provide the desired alignment between the different pen colors. The components of each of the pens are aligned with respect to reference marks on the pen bodies and alignment between the individual color pens is conducted after all of the components of the pens are assembled and attached to the carriage. A disadvantage of this method for aligning the ink jet pens is that multiple alignment steps are required for the individual pens and there is a possibility that misalignment may occur due to wear or damage thereby requiring another costly alignment step.




It is difficult to produce multicolor pens having two or more printheads attached to the same ink jet pen body because of the need to maintain alignment of the pen components. Thin film adhesives have attributes that make them desirable for use in the assembly of ink jet pens. For example, thin film adhesives are available that have substantially uniform thickness. However, such adhesives also have numerous attributes that render them difficult to handle or otherwise work with and thus the use of such adhesives are problematic in a production setting. There is a need therefore for manufacturing techniques and apparatus that facilitate the use of thin film adhesives in the manufacture of ink jet pens.




SUMMARY OF THE INVENTION




With regard to the foregoing, the invention provides a method for attaching microelectronic devices, circuit boards and the like to a surface, and is particularly suitable for attaching a plurality of semiconductor chips to an ink jet pen body. The method includes the steps of (a) providing a sheet of a thin film adhesive material having a first surface and a second surface opposite the first surface, the second surface being releasably attached to a carrier web; (b) simultaneously making a plurality of cuts in the sheet of thin film adhesive material, the cuts extending from the first surface to an interface between the second surface and the carrier web without significantly extending into the carrier web to provide one or more cut portions of adhesive film; (c) removing each cut portion of adhesive film from the carrier web; (d) engaging the second surface of each of the cut portions with predetermined locations on a receiving surface; (e) providing one or more semiconductor chips in a desirably aligned configuration with respect to the predetermined locations and contacting each semiconductor chip with first surface of each of the cut portions; and (f) curing the thin film adhesive in order to substantially bond the chips to the receiving surface.




In another aspect, the invention relates to apparatus for simultaneously cutting two or more strips of thin film adhesive and thereafter simultaneously applying the plurality of strips of thin film adhesive to a component of an ink jet pen in the manufacture of the ink jet pen.




In a preferred embodiment, the apparatus includes a plurality of cutting/application assemblies desirably aligned with one another and spaced apart from one another a predetermined distance corresponding to desired application positions of the strips of thin film adhesive to an ink jet pen. A plurality of shafts capable of reciprocating movement relative to the cutting/application assemblies are provided, one each operatively associated with one of the cutting/application assemblies. A control assembly is provided for controlling movement of the shafts and for movably positioning the cutting/application assemblies relative to a workpiece such as a sheet of adhesive or an ink jet pen component. A plurality of rigid connecting members are provided for connecting each cutting/application member to the control assembly.




Each of the cutting/application assemblies includes a stamping die having a perimeter defining a surface thereof of suitable configuration for cutting portions of thin film adhesive of a predetermined configuration from a sheet of thin film adhesive. An insert is movably positionable within a portion of the stamping die adjacent to the perimeter and has a surface suitable for receiving a cut portion of the thin film adhesive. Each of the shafts is operatively associated with one of the inserts and the control assembly.




The invention advantageously facilitates the handling of thin film adhesives in the manufacture of microelectronic devices, such as ink jet pens. The invention provides conveniences in the cutting and application of thin film adhesives so that precisely cut portions of film material may be cut and accurately placed without undue handling thereof and without subjecting the film material to handling procedures that promote damage to the materials.











BRIEF DESCRIPTION OF THE DRAWINGS




Further advantages of the invention will become apparent by reference to the detailed description when considered in conjunction with the figures, which are not to scale, wherein like reference numbers indicate like elements through the several views, and wherein:





FIG. 1

is a perspective view of a multicolor ink jet pen body showing semiconductor chip pockets therein;





FIG. 2

is a perspective view of a single chip pocket and semiconductor chip for placement therein;





FIG. 3

is a perspective view of adhesive placement relative to a semiconductor chip and chip pocket according to the invention and

FIG. 3



a


shows a perspective view of an alternate adhesive placement;





FIG. 4

is a cross-sectional side view of a sheet adhesive for use in accordance with the invention;





FIG. 5

is a perspective view of apparatus for simultaneously placing adhesive in a plurality of chip pockets;





FIG. 6

is a perspective view showing a portion of the apparatus of FIG.


5


.





FIG. 7

is a bottom perspective view of the apparatus portion of

FIG. 6

;





FIG. 8

is a cross-sectional side view taken along lines


8





8


of

FIG. 7

;





FIGS. 9



a


-


9




c


are representational side views showing steps in accordance with invention for obtaining an adhesive strip for positioning in the chip cavity; and





FIGS. 10



a


-


10




b


are representational side views showing steps in accordance with the invention for positioning adhesive strips in a chip cavity.











DETAILED DESCRIPTION OF THE INVENTION




The invention relates to methods and apparatus for preparing, handling and installing thin film adhesives in the manufacture of microelectronic devices. The invention is particularly suitable for use in the attachment of semiconductor chips in the manufacture of ink jet pens. Accordingly, in accordance with a preferred embodiment, the invention will be described herein in the context of securing semiconductor chips in the manufacture of ink jet pens. However, it will be understood that the invention is suitable in other applications involving adhesive securement of components in the manufacture of microelectronic devices.




With reference to

FIGS. 1 and 2

there is shown in perspective view an ink jet pen body


10


, preferably a multicolor ink jet body, containing chip pockets


12


,


14


and


16


on a first surface


18


thereof for the colors cyan, magenta and yellow. In the alternative, the pen body


10


may contain from two to four chip pockets. Preferably, the pen body


10


contains from three or four chip pockets, the fourth chip pocket being adapted for the color black.




The chip pockets


12


,


14


and


16


are recessed from the first surface


18


so that semiconductor chips


20


positioned in the pockets


12


-


16


do not extend above the top surface


18


of the pen body


10


. Each of the chip pockets


12


,


14


and


16


contains an ink feed slot substantially in the center thereof, such as slots


22


,


24


and


26


, for feed of ink to the chips


20


when they are mounted in the chip pockets


12


-


16


. The semiconductor chips


20


each contain an ink via


28


therein for ink flow communication between ink in the ink feed slots and a top surface


30


of the chips


20


. The chips


20


contain energy imparting devices such as resistor heaters or piezoelectric devices which upon activation cause ink to be ejected through orifice holes in a nozzle plate attached to the top surface


30


of the semiconductor chip


20


. The slots/chips are shown configured for feeding ink through the center of the chips. However, it will be understood that the invention is equally applicable for use with ink pens of the type wherein ink is fed around the edges or sides of the semiconductor chips


20


from ink feed slots offset from the center of the chip pockets


12


,


14


and


16


. In an edge feed design, since ink flows around the edges of the chips


20


, the chips do not contain ink vias


28


.




A nozzle plate, preferably a separate plastic or metal member, may be adhesively attached to the semiconductor chip


20


through a window or opening in a flexible circuit or TAB circuit. Alternatively, the nozzle plate may be integral with a flexible circuit or TAB circuit. The adhesive used to attach the nozzle plate to the semiconductor chip


20


may be a heat curable adhesive such a B-stageable thermal cure resin, including, but not limited to phenolic resins, resorcinol resins, epoxy resins, ethylene-urea resins, furane, resins, polyurethane resins and silicone resins. The adhesive between the nozzle plate and chip


20


is preferably cured before attaching the chip


20


to the chip pocket


12


of the pen body


10


and preferably has a thickness ranging from about 1 to about 25 microns.




The flexible circuit or TAB circuit, which may be separate or integral with the nozzle plate, contains electrical traces and contacts for electrically connecting the energy imparting devices on the top surface


30


of the chip


20


with a printer control system. The design and manufacture of nozzle plates and flexible circuits or TAB circuits and attachment of the nozzle plates to a semiconductor chip are well known in the art and are described, for example in U.S. Pat. No. 5,305,015 to Schantz et al., the disclosure of which is incorporated by reference as if fully set forth herein.




Because of the design of an ink jet pen having a pen body


10


containing two or more semiconductor chips


20


attached in chip pockets


12


,


14


and


16


on the pen body


10


, each of the chips


20


must be precisely aligned with respect to one another and with respect to the nozzle plate during the assembly process. Misalignment may cause improper ink dot placement with respect to one or more colors being printed.




With reference to

FIG. 3

, a thin film adhesive in film or paste form, may be used to fixedly attach each chip


20


in one of the chip pockets


12


-


16


. Preferred thin film adhesives include epoxy, cyanate ester and cyanate ester/epoxy adhesives having a thickness ranging from about 0.0005 to about 0.006 inch. Particularly preferred adhesives are available from Bryte Technologies, Inc. of Morgan Hill, Calif. under the trade name BRYTE EX-1522U and from Ablestik Electronic Materials & Adhesives, a subsidiary of National Starch and Chemical Company of Rancho Dominiguez, Calif. under the trade names ABLESTIK 550 and ABLESTIK 561.




In the case of a center feed chip design for an ink jet pen


10


, the adhesive is preferably provided as a substantially continuous frame


32


having an opening


33


, the frame


32


surrounding or circumscribing slot


22


. In an alternate embodiment (

FIG. 3



a


), a frame


32


′ consisting of a plurality of individual strips or segments


34


is positioned to fully or partially encircle slot


22


. The adhesive frame


32


(or


32


′) provides a surface on a first side for adhering to the chip cavity and a surface on a second side opposite the first side for adhering to the chip. In the case of an edge feed chip design for an ink jet pen


10


, the adhesive preferably has a substantially continuous solid rectangular configuration rather than being provided as a frame


32


or strips


34


.




The adhesive frame


34


, strips


34


or rectangle are cut from an adhesive sheet


42


illustrated in FIG.


4


. The adhesive sheet


42


includes an adhesive film


80


having a first surface


82


and a second surface


84


opposite the first surface


82


. The adhesive sheet


42


may be tacky or a low tack adhesive may be applied to a release liner or carrier web


86


for attaching the second surface


84


of the adhesive film


80


thereto. The adhesive film


80


preferably has a thickness preferably ranging from about 0.0005 to about 0.006 inch. The release liner or carrier web


86


is preferably substantially thicker than the adhesive film


80


and preferably has a thickness ranging from about 0.01 to about 0.1 inch. As will be appreciated, the release liner or carrier web


86


may be a coated paper or plastic material, which may or may not contain a low tack adhesive layer


85


for attaching the web


86


to an adhesive film


80


. In the case of a non-tacky adhesive film


80


, the frame


32


or strips


34


are simply laid in the chip pockets


12


,


14


and


16


before placing the chips


20


in the chip/nozzle plate assembly in the chip pockets


12


,


14


and


16


.




Once the chip/nozzle plate assembly is attached to the pen body


10


, a flexible circuit or TAB circuit may be attached to the top surface


18


of the pen body


10


using a heat activated or pressure sensitive adhesive. Preferred adhesives include, but are not limited to phenolic butyral adhesives, acrylic based pressure sensitive adhesives such as AEROSET 1848 available from Ashland Chemicals of Ashland, Ky. and phenolic blend adhesives such as SCOTCH WELD 583 available from 3M Corporation of St. Paul, Minn. The adhesive thickness preferably ranges from about 0.001 to about to about 0.005 inch.




Turning to

FIGS. 5-8

, there is shown apparatus


40


for simultaneously depositing frames


32


or strips


34


of adhesive onto the surfaces


36


,


37


and


38


of the chip pockets


12


-


16


of the ink jet pen. The apparatus


40


includes a plurality of assemblies


44


,


46


and


48


. The assemblies


44


-


48


are aligned with one another and spaced apart from one another corresponding to the locations of the chip pockets


1216


. As explained below, the assemblies


44


-


48


are suitable for positioning the adhesive frames


32


or strips


34


in the chip pockets


12


-


16


, such as to surround the slot


22


of chip pocket


12


. The apparatus


40


may also be used to apply a rectangular adhesive film to the surfaces


36


,


37


and


38


of chip pockets


12


-


16


.




The assemblies


44


-


48


are operatively associated in the manner described below with shafts


50


,


52


and


54


, respectively, mounted on a motorized control assembly


56


for simultaneous operation of the assemblies


44


-


48


. Each assembly


44


-


48


is rigidly connected to the control assembly


56


as by rigid connecting members


58


extending between the assemblies


44


-


48


and the control assembly


56


.




The control assembly


56


may be of any suitable construction for controlled simultaneous movement of the shafts


50


-


54


of the assemblies


44


-


48


. For example, the control assembly


56


may be mounted to a motor driven, variably positionable support capable of controlled movement towards and away from a work surface, it being understood that the assemblies


44


-


48


move in unison with the control assembly


56


by virtue of the connecting members. In addition, the control assembly


56


contains internal mechanical structure for simultaneous controlled movement of the shafts


50


-


54


either toward or away from the work surface. The structure of a suitable control assembly


56


is considered to be well within the knowledge of one of ordinary skill in the art.




The assemblies


44


-


48


are preferably identical to one another. Accordingly, only the construction and operation of assembly


44


will be described in detail, and the description applies to the remaining assemblies which are substantially identical thereto.




As shown in

FIGS. 6-8

, the assembly


44


includes a substantially rectangular stamping die


60


having substantially continuous side surfaces


61


and


62


, end surfaces


63


and


64


, and top surface


65


. A bottom


66


of the die


60


has a substantially continuous perimeter


67


surrounding a rectangular blind bore


68


and provides a suitable cutting surface for cutting the frame


32


or rectangular portions from the adhesive film


80


, as explained in more detail below. The assembly


44


is preferably constructed of aluminum or a rigid, strong, corrosion resistant material such as stainless steel.




The blind bore


68


is sized to slidably receive a substantially rectangular and solid insert


69


having sides


70


and


71


, ends


72


and


73


, top


74


and bottom


75


, with depth D of the bore


68


being sufficient to receive both the insert


69


and the adhesive cut from film


80


. Accordingly, when the insert


69


is fully retracted within the bore


68


, the bottom


75


of the insert


69


is withdrawn a distance d within the bore corresponding to the thickness of the adhesive film


80


. The die


60


further includes a bore


76


substantially centrally located on the top surface


65


and extending into the bore


68


for slidably receiving the shaft


50


. A lowermost end of the shaft


50


is attached to the top


74


of the insert


69


.




A separate die, similar to the die described above may be used to cut the rectangular openings


33


for frame


32


prior to cutting frame


32


from the adhesive film


80


. In the case of a rectangular adhesive film for an edge feed ink jet pen, only one die


60


as described above is required to cut the adhesive film.




With reference to

FIG. 9



a


, the initial step in preparation of one of the frames


32


, strips


34


or rectangular film is to remove a liner (if provided) from the upper surface


82


of the adhesive film


80


and position the assembly


44


so that the perimeter


67


of the assembly


44


rests on the upper surface


82


, it being understood that the adhesive sheet


42


is supported by a suitable work surface, with the carrier web


86


resting on the work surface. The shaft


50


is preferably positioned so that the insert


69


is fully retracted within the bore


68


to provide clearance for the adhesive as it is cut from the adhesive film


80


by downward urging of the perimeter


67


.




Next (

FIG. 9



b


), the assembly


44


is pressed substantially perpendicularly in the direction of the arrows A into the adhesive sheet


42


so that the perimeter


67


cuts through the adhesive film


80


but does not cut into the carrier web


86


or only cuts into the carrier web


86


a minor amount. This renders a cut portion of adhesive corresponding to frame


32


, strips


34


or a rectangular adhesive film, and indicated in

FIG. 9



b


using reference numeral


32


. In the case of frame


32


, similar die to die


60


is used to first cut the rectangular opening


33


in frame


32


before cutting the frame


32


from adhesive sheet


42


. The resulting frame


32


or rectangular adhesive film cut from the adhesive sheet


42


remains with the assembly


44


as the assembly


44


is removed from the sheet


42


by pulling it away from the sheet


42


in the direction of the arrows B. As the assembly


44


is withdrawn from sheet


42


, the carrier web


86


is separated from the adhesive film


80


. Throughout the steps represented by

FIGS. 9



a


-


9




c


, the shaft


50


is preferably maintained such that the insert


69


is fully withdrawn into the bore


38


.




As shown in

FIGS. 10



a


-


10




b


, the frame


32


or rectangular adhesive film is installed within the chip pocket


12


by first positioning the assembly


44


adjacent chip pocket


12


(and the other assemblies


46


and


48


being similarly positioned adjacent their respective chip pockets


14


and


16


) placing the perimeter


67


of the assembly


44


against the surface


36


of the chip pocket


12


and moving the shaft


50


downwardly in the direction of the arrow C thereby urging insert


69


toward the surface


36


of chip pocket


12


and to bear the surface


84


of the adhesive strip


32


against the chip pocket. As the pressure is exerted on the frame


32


via the shaft


50


, the frame


32


is urged toward surface


36


of the chip pocket


12


. While not required, surface


84


or surface


36


may contain a low-tack adhesive layer far use in attaching frame


32


to the chip pocket


12


. The shaft


50


is then moved in to direction D away from the chip pocket and the frame


32


releases from the surface


75


of the insert


60


and remain in to chip pocket


12


. The assembly


44


is thereafter or simultaneously withdrawn from the chip pocket


12


.




To facilitate separation of frame


32


from the insert


69


, it is preferred that the surface


75


of the insert


69


have less affinity for the adhesive film


80


as compared to the surface


36


of the chip pocket


12


, but still sufficient adhesion for removing the frame


32


from the material sheet


42


. This may be accomplished, for example, by coating the surface


75


with a low surface energy coating such as a polytetrafluoroethylene coating (PTFE) having a surface energy substantially lower than the surface energy of the surface


36


of the chip pocket


12


. In order to increase the surface energy of surface


36


, a low-tack adhesive layer may be used in the chip pocket


12


. The low tack adhesive should have sufficient tackiness to adhesively secure the frame


32


to the surface


36


of the chip pocket


12


while enabling release of surface


82


of the frame from surface


75


of insert


69


.




In a preferred fabrication method for an ink jet pen according to the invention, nozzle plates are bonded to semiconductor chips such as chip


20


using well known bonding techniques. The nozzle plate/chip assemblies are then electrically connected to a flexible circuit or TAB circuit. In a separate step, a thermoplastic adhesive is applied to the top surface


18


of the pen body


10


.




Next, the frames


32


are positioned in the chip pockets


12


of the pen body


10


using the apparatus of

FIG. 4

in the manner described above in connection with

FIGS. 9



a


-


9




c


and


10




a


-


10




b


. The nozzle plate/chip/circuit assemblies are then aligned to one another and attached to the pen body


10


by positioning them in their aligned orientation within the chip pockets


12


and pressing them in this orientation against the installed frames to maintain them in the chip pockets in their aligned orientation.




Finally, the flexible circuits or TAB circuits are heat staked into the thennoplastic adhesive on the surface


18


of the pen body


10


and heat is applied to the exposed surface of the flexible circuits in an amount sufficient to cause the thermoplastic adhesive to flow and encapsulate the edges of the flexible circuits. A preferred thermoplastic adhesive for attaching the flexible circuits or TAB circuits is a flexible polyolefin, non-curing thermoplastic bonding film such as available from Minnesota Mining and Manufacturing Company of Saint Paul, Minn. under the trade name 3M THERMO-BOND 845. Such film has a thickness ranging from about 0.002 to about 0.005 inch and includes a polyolefin based-resin having a softening i s point in the range of from about 80° to about 150° C.




As will be appreciated, the invention advantageously enables improved manufacture of ink jet pens using thin film adhesives. Multiple portions of thin film adhesive can be prepared simultaneously and applied simultaneously in the manufacture of ink jet pens, avoiding many of the shortcomings of prior methods and apparatus and the problems inherent in the handling of thin film adhesives.




Having described various aspects and embodiments of the invention and several advantages thereof, it will be recognized by those of ordinary skills that the invention is susceptible to various modifications, substitutions and revisions within the spirit and scope of the appended claims.



Claims
  • 1. A method for attaching microelectronic devices to a receiving surface, the method comprising the steps of (a) providing a sheet of a thin film adhesive material having a first adhesive surface and a second adhesive surface opposite the first adhesive surface, the second adhesive surface being releasably attached to a carrier web, (b) providing a unitary cutting/application device with a movable engagement member having an adhesive affinity for the first adhesive surface, and pressing the unitary cutting/application device against the first adhesive surface to simultaneously make a plurality of cuts in the sheet of thin film adhesive material and to adhere the first adhesive surface to the engagement member, the cuts extending from the first adhesive surface to an interface between the second adhesive surface and the carrier web without significantly extending into the carrier web to provide one or more cut portions of adhesive film; (c) removing the cutting/application device from the sheet of thin film adhesive material wherein each cut portion of adhesive film is removed from the carrier web and remains adhesively attached to the engagement member of the cutting/application device; (d) engaging the second adhesive surface of each of the cut portions with predetermined locations on a receiving surface having an adhesive affinity for the second adhesive surface that is greater than the adhesive affinity of the engagement member for the first adhesive surface using the cutting/application device by urging the engagement member to press the second adhesive surface of the cut portions against the receiving surface and thereafter withdrawing the engagement member away from the receiving surface such that the second adhesive surface remains adhesively secured to the receiving surface while the first adhesive surface separates from the engagement member; (e) providing one or more microelectronic devices in a desirably aligned configuration with respect to the predetermined locations and contacting each of the microelectronic devices with the first adhesive surface of each of the cut portions to adhesively secure the microelectronic devices to the first adhesive surface of the cut portions; and (f) curing the adhesive in order to substantially bond the devices to the receiving surface.
  • 2. The method of claim 1, wherein the thin film adhesive material comprises an adhesive material selected from the group consisting of epoxies, cynates esters, cynate ester/epoxy blends, and silicones.
  • 3. The method of claim 1, wherein the thin film adhesive material has a substantially uniform thickness of from about 0.0005 to about 0.006 inch.
  • 4. The method of claim 1, wherein the predetermined locations comprise surfaces of chip pockets of an ink jet pen.
  • 5. The method of claim 1, wherein the step of engaging the second adhesive surface of the cut portions with predetermined locations on a receiving surface comprises providing one or more engagement members and urging a surface of each engagement member having an affinity for the cut portions against the first adhesive surface of each of the cut portions.
  • 6. A method for attaching a plurality of a semiconductor chips to an ink jet pen body which comprises the steps of(a) providing a sheet of a thin film adhesive material having a first adhesive surface opposite a second adhesive surface and a carrier web releasably attached to the second adhesive surface using a low tack adhesive, (b) providing a unitary cutting/application device with a movable engagement member having an adhesive affinity for the first adhesive surface, and pressing the unitary cutting/anplication device against the first adhesive surface to simultaneously make a plurality of cuts in the sheet of thin film adhesive material and to adhere the first adhesive surface to the engagement member, the cuts extending from the first adhesive surface to an interface between the second adhesive surface and the carrier web without significantly extending into the release carrier web to provide one or more cut portions of adhesive film; (c) simultaneously removing the cutting/application device from the sheet of thin film adhesive material wherein each cut portion of adhesive film is removed from the carrier web and remains adhesively attached to the engagement member of the cutting/application device; (d) simultaneously engaging the second adhesive surface of each of the cut portions with predetermined locations on the ink jet pen body having an adhesive affinity for the second adhesive surface that is greater than the adhesive affinity of the engagement member for the first adhesive surface using the cutting/application device by urging the engagement member to press the second adhesive surface of the cut portions against the predetermined locations and thereafter withdrawing the engagement member away from the predetermined locations such that the second adhesive surface of the cut portions remains adhesively secured to the predetermined locations while the first adhesive surface of the cut portions separates from the engagement member; and (e) providing a plurality of semiconductor chips in a desirably aligned configuration with respect to the predetermined locations and substantially simultaneously contacting each semiconductor chip with the first adhesive surface of each of the cut portions to adhesively secure the semiconductor chips to the first adhesive surface of the cut portions.
  • 7. The method of claim 6 wherein the cut portions comprise an adhesive film selected from the group consisting of epoxies, cynates esters, cynate ester/epoxy blends, and silicones.
  • 8. The method of claim 6 wherein the cut portions have a substantially uniform thickness of from about 0.0005 to about 0.006 inch.
  • 9. The method of claim 6 wherein the carrier web comprises a low-tack adhesive layer for releasably engaging the cut portions of the film material thereto.
  • 10. The method of claim 6 further comprising curing the cut portions in order to adhesively bond the chips to the ink jet pen body.
  • 11. A method for attaching one or more components of a microelectronic device to a portion of the microelectronic device during construction thereof, the method comprising the steps of(a) providing a sheet of a thin film adhesive material having a first adhesive surface opposite a second adhesive surface and a carrier web releasably attached adjacent the second adhesive surface, (b) providing a unitary cutting/application device with a movable engagement member having an adhesive affinity for the first adhesive surface, and pressing the unitary cutting/application device aaainst the first adhesive surface to make a plurality of cuts in the sheet of thin film adhesive material and to adhere the first adhesive surface to the engagement member, the cuts extending from the first adhesive surface to an interface between the second adhesive surface and the carrier web without significantly extending into the carrier web to provide one or more cut portions of adhesive film; (c) removing the cutting/application device from the sheet of thin film adhesive material wherein each cut portion of film is removed from the carrier web and remains adhesively attached to the engagement member of the cutting/application device; (d) engaging the second adhesive surface of each of the cut portions with predetermined locations on the microelectronic device having an adhesive affinity for the second adhesive surface that is greater than the adhesive affinity of the engagement member for the first adhesive surface using the cutting/application device by urging the engagement member to press the second adhesive surface of the cut portions against the predetermined locations and thereafter withdrawing the engagement member away from the predetermined locations such that the second adhesive surface of the cut portions remains adhesively secured to the predetermined locations while the first adhesive surface separates from the engagement member; (e) contacting one or more microelectronic components with the first adhesive surface of the cut portions to adhesively secure the microelectronic components to the first adhesive surface of the cut portions; and (f) curing the cut portions in order to bond the one or more components to the microelectronic device.
  • 12. The method of claim 11, wherein the thin film adhesive material comprises an adhesive material selected from the group consisting of epoxies, cynates esters and cynate ester/epoxy blends and silicones.
  • 13. The method of claim 11, wherein the thin film adhesive has a substantially uniform thickness of from about 0.0005 to about 0.006 inch.
  • 14. The method of claim 11, wherein the step of engaging the second surface of each of the cut portions with predetermined locations on a receiving surface comprises providing one or more engagement members and pressing a surface of each engagement member having an affinity for the cut portions against the first surface of each of the cut portions.
Parent Case Info

This application is a continuation of application Ser. No. 09/618,123, filed Jul. 17, 2000, now pending.

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Continuations (1)
Number Date Country
Parent 09/618123 Jul 2000 US
Child 10/305636 US