The present disclosure relates to UICCs and smart cards, including but not limited to, UICC apparatus and related methods.
Electronic devices, including portable electronic devices, have gained widespread use and may provide a variety of functions including, for example, telephonic, electronic messaging, and other personal information manager (PIM) application functions. Portable electronic devices include, for example, several types of mobile stations such as simple cellular telephones, smart telephones, tablet computers, wireless personal digital assistants (PDAs), and laptop computers with wireless 802.11 or Bluetooth capabilities.
Electronic devices such as, for example, portable electronic devices often connect to a network (e.g., a mobile network). These devices often employ a Universal Integrated Circuit Card to identify a subscriber for network access. For example, the UICC can store a Subscriber Identity Module application (e.g., a SIM, USIM, RUIM, CSIM, etc.) that authenticates a subscriber to a network such as a mobile network. The UICC may also store other subscriber-related information for non-telecom applications. For example, the UICC can enable contactless data flow for identity, security, banking, payment applications and/or any other application associated with transmitting and securing personal data of a user.
Certain examples are shown in the above-identified figures and described in detail below. In describing these examples, like or identical reference numbers are used to identify common or similar elements. The figures are not necessarily to scale and certain features and certain views of the figures may be shown exaggerated in scale or in schematic for clarity. Additionally, several examples have been described throughout this specification. Any features from any example may be included with, a replacement for, or otherwise combined with other features from other examples. Further, the example shown in the above-indentified figures include classifications symbols, lettering or tags associated with, for example, international standards provided by, for example, the European Telecommunications Standards Institute (ETSI) and the International Standard Organization (ISO). For example, certain electrical contacts shown in the above-indentified figures employ classifications associated with electrical contact properties commonly known as C1-C8. Such identification of the electrical contact classifications in the above-indentified figures are provided as examples only and the electrical contacts may vary from the examples shown in the above-referenced figures.
UICCs are often used as a Subscriber Identity Module (e.g., SIM card, USIM card, RUIM card or CSIM card) in a portable electronic device such as a mobile device. A Subscriber Identity Module is a network access application or software that is stored in the UICC to authenticate a subscriber to a network. In some examples, a UICC enables contactless communication (Near Field Communication) with a host (e.g., a remote terminal).
Typically, a UICC includes a body to support an integrated circuit or microprocessor and a plurality of electrical contacts to enable communication between the microprocessor and a host (e.g., a computer, a mobile device, a non-mobile device, a terminal, a remote terminal, etc.). The host typically employs an input device (e.g., a card reader) to accept the body and complete a circuit with the electrical contacts to enable communication (e.g., transfer data) between the UICC and the host.
Thus, the input device or card reader must be configured to support a layout or pattern of the electrical contacts positioned on the UICC. Currently, physical characteristics or parameters of UICCs are governed by certain international standards provided by, for example, the European Telecommunications Standards Institute (ETSI) and the International Standard Organization (ISO). In particular, physical characteristics or parameters of an UICC are provided by certain form factor standards (e.g., ID-1, plug-in UICC, a mini-UICC) defined by International Standard Organization ISO/IEC 7816-2 and 7816-3 and/or Technical Specification of the European Telecommunications Standards Institute ETSI TS 102 221.
For example, ISO/IEC 7816-2 and/or ETSI TS 102 221 standards define an overall profile and/or dimensional envelope of conforming UICCs. For example, some current standards define ID-1 card standard, plug-in UICC (or 2nd form factor or 2FF) standard and a mini-UICC (or 3rd form factor or 3FF) standard. Each of the different form factors defines a different dimensional envelope or profile. More specifically, the ID-1 card standard provides a first dimensional profile that is larger than a dimensional profile of the plug-in UICC and the mini-UICC, and the plug-in UICC standard provides a dimensional profile that is larger than the dimensional profile of the mini-UICC.
Further, an order or arrangement in which electrical contacts are positioned on the UICC is also defined by the standards. The current standards define a layout of electrical contacts on the UICC as a grid pattern (e.g., 4 by 2 grid pattern) that provides a surface area greater than 1 centimeter squared. For example, the standards specify that a first row of electrical contacts should include a voltage supply, a reset, a clock and an optional first auxiliary, and a second row of electrical contacts should include a ground, a single-wire protocol, an input/output and an optional second auxiliary. In other words, conforming UICCs have a common electrical contact pattern or configuration and are only differentiated by the shape and/or profile of the body supporting and/or surrounding the electrical contact pattern.
Thus, while the current specifications ISO/IEC 7816-2 and 7816-3 and ETSI TS 102 221 define standards of a UICC, such standards also influence the design (e.g., the size, shape or footprint) of an input device or card reader. Some known input devices often employ a push-push mechanism to insert/remove a UICC from an input device, which requires a user to slide the card inside a slot of the input device. To remove the card, a user pushes the card further into the slot and a spring-loaded mechanism ejects the card from the slot. Another example input device or card reader employs a push-pull configuration. In such example, a UICC is pulled from a slot of the card reader. Some example electronic devices employ a tray-style input device or card reader. In such example, the UICC is nested in the tray. The tray and the nested UICC are then disposed in an electronic device.
Further, each of the known card readers are typically configured or adapted to receive a dedicated UICC form factor standard (e.g., a UICC conforming to only one standard). In some examples, an adaptor may be employed to enable a smaller conforming UICC to be operable with a card reader adapted to receive larger conforming UICCs. Due to the common pattern of the electrical contacts for each conforming UICCs provided by the standards noted above, a card reader configured to receive the larger conforming UICC can receive and communicate with a smaller conforming UICC via the adaptor, because the adaptor only alters the profile or shape of the smaller conforming UICC supporting and/or surrounding the electronic contacts or the electrical contact pattern.
However, card readers can significantly increase a dimensional envelope of a portable electronic device. In some example electronic devices, an input device or card reader may cover the greatest amount of surface area of an electronic board of an electronic device (e.g., a mobile phone) compared to other electronic components of the electronic device. For example, by specifying the electrical contacts or pads disposed across an (x) by (y) surface area, an input device having a minimum surface area specified by the (x) by (y) surface area of the electrical contacts is required to properly couple to the electrical contacts of the circuit card. However, smaller electronic devices are generally desirable for portability. As a result, current standards may not be sufficient to reduce the size and/or an overall footprint of a mobile device.
In general, example UICCs disclosed herein modify or deviate from the dimensional envelope and/or profiles (e.g., shape and/or dimensions) provided by the ISO/IEC 7816-2 and 7816-3 and/or ETSI TS 102 221 standards. In other words, the example UICCs disclosed herein may define another UICC form factor standard. In particular, UICCs disclosed herein provide significantly smaller overall footprints compared to UICCs manufactured per the current specifications and/or standards provided by ISO/IEC 7816-2 and 7816-3 and/or ETSI TS 102 221. More specifically, a profile or dimensional envelope of the example UICCs disclosed herein deviate from the known standards (e.g., the ISO/IEC and/or ETSI TS standards). As a result, the example UICCs disclosed herein can also reduce the overall space requirements of an input device or card reader coupled to an electronic device. For example, the example UICCs disclosed herein enable a UICC that deviates from the conforming standards to be compatible with a card reader having a smaller surface area such as, for example, a block style reader.
Additionally or alternatively, the example UICCs described herein may employ a contact pad that includes a plurality of electrical contact patterns. The plurality of contact patterns may be positioned or oriented on the contact pad such that one or more of the electric contacts define a plurality of different electrical contact patterns (e.g., multiple different electrical contact patterns) to enable an example UICC disclosed herein to communicate and/or be read by a plurality of different input devices and/or card readers.
For example, a first set or plurality of electrical contacts positioned on the contact pad may define or provide a first electrical contact pattern (e.g., a conforming electrical contact pattern or layout) and a second set or plurality of electrical contacts may define or provide a second electrical contact pattern (e.g., a non-conforming electrical contact pattern or layout). Additionally or alternatively, a third set or plurality of electrical contacts positioned on the contact pad may define or provide a third electrical contact pattern. Thus, the first, second and third electrical contact patterns enable different (e.g., first, second and third) input devices to communicate with an UICC disclosed herein. For example, the first electrical contact pattern may be configured to include a conforming electrical contact pattern according to known industry standards (e.g., a set of electrical contacts in a 4×2 grid-like pattern), the second electrical contact pattern may be configured as a non-conforming electrical contact pattern (e.g., a set of electrical contacts in a single-row configuration), and the third electrical contact pattern may be configured as a conforming and/or non-conforming electrical contact pattern (e.g., a set of electrical contacts in a 3×2 grid-like pattern).
To enable configuration of multiple electrical contact patterns, an example contact pad of an example UICC disclosed herein employs electrical contacts having common electrical contact classifications (e.g., classifications C1-C8). For example, a plurality of electrical contacts may include common electrical contacts associated with a voltage classification C1, a resent classification C2, a clock classification C3, a first auxiliary classification C4, a ground classification C5, a single-wire protocol classification C6, an input/output classification C7 and a second auxiliary classification C8. The common electrical contacts may be positioned adjacent to each other and/or may be spaced-apart from each other. Thus, in some examples, the first, second and/or third electrical contact patterns each have one or more similar electrical contact characteristics or properties (e.g., electrical contact properties C1-C8 according to the above-referenced standards). For example, the first, second and/or third electrical contact patterns share an electrical contact positioned on the contact pad. Alternatively, two or more electrical contacts positioned on the contact pad employ the same or similar electrical contact characteristic or property.
Further, the plurality of electrical contacts disclosed herein may include substantially similar or different dimensional profiles or footprints. For example, each of the electrical contacts may have a substantially similar profile (e.g., a height and/or a width). In some examples, a first plurality of electrical contacts may include a first dimensional profile (e.g., a height and/or width) that is different than a dimensional profile (e.g., a height and/or width) of a second plurality of electrical contacts. For example, the second plurality of electrical contacts may have a height and/or width that are different than a height and/or width of a third plurality of electrical contacts. In some examples, an electrical contact may be elongated relative to another electrical contact (e.g., non-elongated electrical contacts). As a result, the elongated electrical contacts span across a height or length on a contact pad that is greater than a height of the non-elongated electrical contacts to enable the elongated electrical contacts to be positioned adjacent two or more non-elongated electrical contacts. In other words, the non-elongated electrical contacts span only across a portion of the contact pad so that two or more non-elongated electrical contacts may be positioned adjacent (e.g., immediately adjacent) to the elongated electrical contacts. For example, the non-elongated electrical contacts may be positioned in pairs relative to the elongated electrical contacts.
Additionally or alternatively, in some examples, one or more of the electrical contacts that define the first, second and/or third electrical contact patterns may be used to define at least part of another one of the first, second or third electrical contact patterns. Thus, in some such examples, one or more of the first, second and third electrical contact patterns may share an electrical contact positioned on the contact pad. For example, the first electrical contact pattern may be defined by electrical contacts associated with the second electrical contact pattern. Therefore, an electrical contact may define at least a portion of the first electrical contact pattern and at least a portion of the second electrical contact pattern.
Additionally or alternatively, each of the electrical contacts defining the respective ones of the first, second and/or third electrical contact patterns do not define part of the other ones of the first, second and/or third electrical contact patterns. As such, each of the first, second and/or third electrical contact patterns may employ dedicated electrical contacts positioned on the contact pad. For example, the first electrical contact pattern may have a first plurality of dedicated electrical contacts and the second electrical contact pattern may have a second plurality of dedicated electrical contacts, where none of the first plurality of dedicated electrical contacts defines the second electrical contact pattern and/or none of the second plurality of dedicated electrical contacts defines the first electrical contact pattern.
In some examples, a first electrical contact pattern or layout scheme may include electrical contacts or electrical pads that conform to a layout provided by, for example, the current ISO/IEC 7816-2 and 7816-3 and/or the ETSI TS 102 221 standards. A second electrical contact pattern or layout scheme may include electrical contacts or electrical pads that may differ from a layout provided by, for example, the current ISO/IEC 7816-2 and 7816-3 and/or the ETSI TS 102 221 standards. For example, the first electrical contact pattern may include electrical contacts or pads (e.g., electrical contacts having classifications C1-C8) in a grid pattern (e.g. a 3×2 or 4×2 grid pattern) that conforms to the above noted standards and the second electrical contact pattern may include electrical contacts or pads (e.g., electrical contacts having classifications C1-C8) in a single row pattern and/or grid-like pattern (e.g., an offset grid pattern) that deviate from the standards noted above.
In this manner, the example UICCs disclosed herein enable an example UICC disclosed herein to communicate with input devices or card readers having traditional six pin readers (e.g., a legacy reader) and/or enable the example UICC disclosed herein to communicate with, for example, single row readers. For example, a point of sale or manufacturing facility can provision an example UICC described herein by inserting the UICC in an input device configured to receive conforming electrical contact patterns or layouts (e.g., a 3×2 grid pattern) and the example UICC can be coupled to an electronic device having a single row reader.
As a result, the UICCs disclosed herein may be received by an input device or card reader configured to communicate with a conforming electrical contact pattern or layout and/or an input device or card reader that is configured to communicate with a non-conforming electrical contact pattern or, in some examples, a combination of both the conforming and non-conforming patterns. For example, an example UICC disclosed herein may be received by a header or block style card reader configured to communicate with a single row electrical contact pattern and/or may be received by a push-pull card reader configured to communicate with a grid-like pattern electrical contact pattern positioned in accordance to the ISO/IEC and/or ETSI TS standards.
Therefore, the example UICCs disclosed herein enable a UICC that deviates from a conforming electrical contact pattern to communicate with an input device or card reader (e.g., a single row block card reader or header card reader) that otherwise may not be employed for use with a conforming UICC. As a result, an electronic device may employ a header or single row block-style input device or card reader, which uses significantly less surface area of a circuit board (e.g., a logic board) of the electronic device compared to, for example, a multi-dimensional input device or card reader (e.g., a multi-row card reader). Further, the example UICCs disclosed herein can also be used with input devices or card readers that are configured to receive a conforming UICC (e.g., provide for reverse compatibility). In some examples, an adaptor or tray may be employed to couple the example UICCs disclosed herein to an input device or card reader.
Further, electrical contact patterns (e.g., a first, second and third electrical contact pattern) may be coupled to an integrated circuit chip of the UICC without the use of additional contacts (e.g., wire bonds) compared to conforming UICCs even though in some examples, the contact patterns may employ more electrical contacts than a conforming UICC. In other words, although the example UICCs disclosed herein employ first and second electrical contact patterns that may each include similar contacts (e.g., C1-C8), one wire bond may be employed to connect two similar electrical contacts (e.g., C1 contacts) of the respective first and second electrical contacts to the integrated circuit. Thus, only one wire bond is needed to communicatively couple a C1 contact in the first electrical contact pattern and a C1 contact in the second electrical contact pattern to the integrated circuit chip.
Additionally or alternatively, example UICCs disclosed herein may employ a retention feature or locking mechanism (e.g., a notch) to retain the circuit card in the input device (e.g., without the use of doors). The retention feature may substantially prevent movement of the UICC relative to the input device when an electronic device experiences sudden shock or vibration (e.g., if the electronic device is dropped). Also, to facilitate insertion of the UICC relative to the input device, example UICCs disclosed herein may employ a lead-in feature (e.g., a chamfer). Further, to facilitate removal of the UICC relative to the input device, example UICCs disclosed herein may employ a pick-out feature (e.g., a ridge, an opening, a slot, etc.).
Referring to
As shown in
As shown in
To communicate with a host, the example UICC 100 includes an integrated circuit 124 (e.g., an IC) shown in
To prevent a metal housing portion of an input device from electrically damaging (e.g., shorting) the electrical contacts 10 adjacent the third edge 118c when the UICC 100 is inserted into an input device in the orientation of arrow A, the example UICC 100 may include a buffer area 130 between the third edge 118c and an edge 132 of each of the electrical contacts 10. In other words, the electrical contacts 10 may be offset relative to the third edge 118c by an offset distance V1. For example, the offset distance V1 may be between approximately 0.2 millimeters and 1.75 millimeters. In other examples, the example UICC 100 may be inserted in an input device in the orientation of arrow C.
Additionally or alternatively, to prevent a metal housing portion of an input device from electrically damaging (e.g., shorting) the electrical contacts 10 adjacent the first edge 118a when the UICC 100 is inserted into the input device in the direction of arrow B, the example UICC 100 includes another buffer area 134 between the first edge 118a and an edge 136 of each of the electrical contacts 10. In other words, the electrical contacts 10 may be offset relative to the first edge 118a by an offset distance V2. For example, the offset distance V2 may be between approximately 0.2 millimeters and 1.75 millimeters. Further, in this example, the rounded corners 120 of the body 102 help maintain a substantially consistent or relatively even buffer area 130 and/or 134 adjacent the corners of the body 102. Additionally or alternatively, the example electrical contacts 10 may be offset relative to the second edge 118b by an offset distance D1 and the electrical contacts 10 may be offset relative to the fourth edge 118d by a distance D2. In particular, the offset distances D1 and D2 may be approximately between 0.2 millimeters and 1.2 millimeters.
The example contact pad 126 enables a modular UICC 100 by providing a plurality of electrical contact 10 that may define a plurality of different electrical contact patterns. For example, the electrical contacts 10 positioned on the contact pad 126 of the illustrated example provide at least a first electrical contact pattern or layout 140 and a second electrical contact pattern or layout 142. More specifically, the first electrical contact pattern 140 may include a first plurality of electrical contacts 128a-f and the second electrical contact pattern 142 may include a second plurality of electrical contacts 128a-c and 128g-h. In the illustrated example of
Further, the example electrical contacts 10 of the example electrical contact patterns 140 and 142 may be arranged or configured in different rows relative to the surface 114 of the body 102 between the second and fourth edges 118b and 118d. For example, the electrical contacts 128a-c are positioned in a first row 144, the electrical contacts 128g and 128h are positioned in a second row 146 and the electrical contacts 128d-f are positioned in a third row 148. Additionally or alternatively, one or more electrical contacts 128a-c of first row 144 may be staggered or positioned in an offset relationship relative to the one or more electrical contacts 128g and 128h of the second row 146. Further, one or more electrical contacts 128a-c of the first row 144 may be substantially aligned with one or more of the electrical contacts 128d-f of the third row 148. Additionally or alternatively, in some examples, one or more electrical contacts 128a-h of the first and second electrical contact patterns 140 and 142 may be electrically isolated and/or one or more of the electrical contacts 128a-h of the first and second electrical contact patterns 140 and 142 may be electrically connected or coupled.
The electrical contacts disclosed herein of the illustrated example may employ electrical contacts in accordance with certain classifications or property characteristics associated with international standards and/or any other standards. For example, the electrical contacts of the example UICC 100 include classifications symbols, lettering or tags for electrical contact properties commonly known as C1-C8 by the international standards provided by, for example, the European Telecommunications Standards Institute (ETSI) and the International Standard Organization (ISO). For illustrative purposes, a classification or characteristic of the electrical contacts 128a-g defined by the example the first and second electrical contact patterns 140 and 142 shown in the illustrated examples of
For example, one or more of the first and second electrical contact patterns 140 and 142 of the UICC 100 may employ electrical contacts configured as a supply voltage contact C1, a reset contact C2, a clock contact C3, a first auxiliary contact C4, a ground contact C5, a single-wire protocol contact C6 (e.g., (SWP) for Near-Field Communication (NFC) or proximity transactions), an input/output contact C7, and a second auxiliary contact C8. In some examples, the electrical contacts C4 and C8 can implement a high speed USB interface between the UICC and the host or terminal. The single-wire protocol contact C6 and/or the first and second auxiliary contacts C4 and C8 are optional and may be omitted. In other examples, the example UICC 100 may employ any other type of electrical contacts other than those described or represented by electrical contacts C1-C8.
Each of the example UICCs 200, 600, 1100, 1400, 1900, 2200, 2400, 2500, 2600 and 2700 disclosed herein can employ similar electrical contact classifications described in connection with the UICC 100 of
Additionally or alternatively, a classification of a particular electrical contact of the example UICCs 100, 200, 600, 1100, 1400, 1900, 2200, 2400, 2500, 2600 and 2700 can be repositioned in alternate positions or configurations. Additionally or alternatively, one or more of the electrical contacts of the example UICCs 100, 200, 600, 1100, 1400, 1900, 2200, 2400, 2500, 2600 and 2700 may be omitted. For example, the auxiliary contacts C4 and C8 may be omitted in any one of the example UICCs 100, 200, 600, 1100, 1400, 1900, 2200, 2400, 2500, 2600 and 2700. Additionally or alternatively, the electrical contacts may include different contacts other than the electrical contacts associated with the standards classifications C1-C8 as described above. Further, in some examples, any one of the electrical contacts C1-C8 shown in the example UICCs 100, 200, 600, 1100, 1400, 1900, 2200, 2400, 2500, 2600 and 2700 may be omitted, repositioned, substituted and/or replaced with another electrical contact.
Further, the example features, dimensional profiles and/or shape of the body 102 described above in connection with
Additionally, the electrical contacts 208a, 208c, 208e, 210a, 210c and 210e of the respective first and second rows 212 and 214 provide a larger dimensional foot print (e.g., are larger electrical contacts) compared to a dimensional footprint of the electrical contacts 208b and 208d of the first row 212 and the electrical contacts 210b and 210d of the second row 214 (e.g., smaller sized electrical contacts). Additionally, the example contact pad 206 of
As shown in the example of
In the illustrated example, the first row 212 of electrical contacts 208a-210e includes a voltage contact C1, a reset contact C2, a clock contact C3, a ground contact C5, and an input/output contact C7. For example, as shown, the voltage contact C1 is positioned adjacent the first edge 218a, the ground contact C5 is positioned adjacent the voltage contact C1, the reset contact C2 is positioned adjacent the ground contact C5, the input/output contact is positioned adjacent the reset contact C2, and the clock contact C3 is positioned adjacent the input/output contact C7. Further still, the voltage contact C1, the reset contact C2 and the clock contact C3 are configured as the larger electrical contacts 208a, 208c and 208e, respectively, and the ground contact C5 and the input/output contact C7 are configured as the smaller sized electrical contacts 208b and 208d, respectively. However, in other examples, anyone of the contacts C1, C2 and C3 can be configured as a smaller electrical contact and/or any one of the contacts C5 and C7 can be configured as a larger electrical contact. Further, the order of the contacts C1, C5, C2, C3, C7 and C7 is not limited to the order shown in the example of
In the illustrated example, the second row 214 of electrical contacts 210a-e includes a first auxiliary contact C4, the ground contact C5, a single wire protocol contact C6, the input/output contact C7, and a second auxiliary contact C8. Thus, the contact pad 126 of
For example, as shown, the ground contact C5, is positioned adjacent an 216b and/or an edge 216c, the first auxiliary contact C4 is positioned adjacent the ground contact C5, the single wire protocol contact C6 is positioned adjacent the first auxiliary contact C4, the second auxiliary contact C8 is positioned adjacent the single wire protocol contact C6, and the input/output contact C7 is positioned adjacent the second auxiliary contact C8. Further still, the ground contact C5, the single wire protocol contact C6 and the input/output contact C7 are configured as the larger electrical contacts 210a, 210c and 210e, respectively, and the first and second auxiliary contacts C4 and C8 are configured as the smaller sized electrical contacts 210b and 210d, respectively. However, in other examples, anyone of the electrical contacts C5, C6 and C7 in the second row 214 can be configured as a smaller electrical contact and/or any one of the electrical contacts C4 and C8 can be configured as a larger electrical contact. Further, the order of the contacts C5, C4, C6, C8 and C7 is not limited to the order shown in the example of
Further, the first and second electrical contact patterns 218 and 220 may be coupled to an integrated circuit chip 304 of the UICC 200 without the use of additional wires or contacts (e.g., wire bonds) compared to current conforming UICCs. In other words, although the example UICC 200 employs first and second electrical contact patterns 218 and 220 that may each include common contacts C5, and C7, a single wire bond may be employed to connect a single conductive surface area that covers the location of both the common electrical contacts to the integrated circuit 302. Thus, only one wire bond 306 is needed to communicatively couple the C5, electrical contact 208b in the first row 212 and the common C5, electrical contact 210a in the second row 214 to the integrated circuit chip 302. Likewise, only one wire bond 308 is needed to communicatively couple the C7 electrical contact 208d in the first row 212 and the common C7 electrical contact 210e in the second row 214 to the integrated circuit chip 302.
More specifically, the input device 402 is adapted to communicate or read the UICC 200 based on any combination of contacts in contact pattern 218 that provide the required functionality. In particular, the input device 402 may be configured to engage or communicate with the electrical contacts 208a, 208c, 208e, 210a, 210c and 210e. In other words, the input device 402 may be configured to communicate or read the larger sized electrical contacts positioned in the first and second rows 212 and 214. In the illustrated example, the larger sized electrical contacts include classifications C1, C2, C3, C5, C6 and C7. Alternatively, the input device 402 may be configured to communicate or read only the electrical contacts 208a, 208c, 208e, 210a and 210e. For example, the input device 402 may be configured to communicate with the electrical contacts associated with classifications contacts C1, C2, C3, C5, and C7, thereby omitting the optional contact C6 (e.g. the single wire protocol). In yet other examples, in addition to communicating with the electrical contacts 208a, 208c, 208e, 210a, 210c and 210e associated with the respective classifications C1, C2, C3, C5, C6 and C7, the input device 218 may be configured to communicate with the smaller sized electrical contacts 210b and 210d positioned in the in the second row 214 that are associated with the C4 and C8 classification, respectively. Thus, the input device 402 may optionally be configured to communicate or engage the contacts C4, C6 and/or C8 positioned in the second row 214. To that end, if the input device 402 is configured to read conforming electrical contact layouts, the first electrical contact pattern 218 employing the electrical contacts 208a, 208c and 208e associated with the C1, C2, and C3 contacts in the first row 212 and electrical contacts 210a and 210e associated with the C5, and C7 contacts in the second row 214 may conform the UICC 200 according to current electrical contact standards.
More specifically, the input device 502 is adapted to communicate or read the UICC 200 based on the second electrical contact pattern 212. In particular, the input device 502 may be configured to engage or communicate only with the electrical contacts C1, C5, C2, C7 and C3 positioned in the first row 212 of electrical contacts 208a-e. For clarity, the second row 214 of electrical contacts 210a-e is not shown in
As a result, the second electrical contact pattern 212 enables an electronic device to employ the input device 502 such as, for example, a header or block-style card reader having a significantly smaller dimensional envelope and thereby significantly reducing an overall dimensional footprint of the electronic device.
In the orientation of
The contact pad 604 defines a first electrical contact pattern or layout 626 and a second electrical contact pattern or layout 628. In particular, the first electrical contact pattern 626 is defined by the electrical contacts having classifications C1-C8 provided by the electrical contacts 618a-c of the first row 608, the electrical contacts 622a-b of the third row 612 and the electrical contacts 624a-c of the fourth row 614. The second electrical contact pattern 628 can include electrical contacts having classifications C1-C3, C5, and C7 provided by the electrical contacts 618a-c in the first row 608 and the electrical contacts 622a-b provided in the second row 610.
In the illustrated example, the electrical contacts 618a-c in the first row 608 provide a voltage contact C1, a reset contact C2, and a clock contact C3, respectively. As shown, the reset contact C2 is disposed between the voltage contact C1 and the clock contact C3. The electrical contacts 622a-b in the second row 610 provide a ground contact C5, and an input/output contact C7, respectively. The electrical contacts 622a-b of the third row 612 provide first and second auxiliary contacts C4 and C8, respectively. The electrical contacts 624a-c of the fourth row 614 provide a ground contact C5, a single wire protocol contact C6 and an input/output contact C7, respectively. As shown in the illustrated example, the single wire protocol contact C6 is positioned between the ground contact C5, and the input/output contact C7 in the fourth row 614. Thus, the contact pad 604 of
As shown in
As a result of the second electrical contact pattern 628, an electronic device may employ an input device having a significantly smaller dimensional envelope to significantly reduce an overall dimensional footprint of the electronic device. For example, an input device (e.g., the input device 702) having approximately half a length and/or area of the surface 606 of the UICC 600 can interface with the UICC 600. Further, for example, a portion 704 (e.g., approximately half the length) of the UICC 600, not engaged by the input device 702, may be exposed relative to the input device 702 to provide a pick out feature. A pick out feature 704 may facilitate removal of the UICC 600 relative to the input device 702. Further, because the second electrical contact pattern 628 covers a smaller surface area (e.g., approximately half the surface area) of the UICC 600, a structure or bracket (e.g., that may be positioned over a surface of the UICC 600) to apply a force to spring contacts of the input device 702 can have a substantially smaller footprint or envelope compared to, for example, a similar structure or bracket employed in known push-push readers that conform to current standards.
Additionally or alternatively, as shown in
For example, although ten different electrical contact 618a-c, 620a-b, 622a-b and 624a-c (e.g., C1, C2, C3, C4, C5, C5, C6, C7, C7 and C8) are formed on the surface 602 of the UICC 600, only eight electrically isolated traces or surface contact areas 804-818 are required to cover the placement location of the ten electrical contacts 618a-c, 620a-b , 622a-b and 624a-c. For example, in the illustrated example, the C5, contact associated with the electrical contacts 622a and 624a are electrically connected via the first trace or contact surface area 810 and the common electrical contacts 620b and 624c (e.g., C7) are electrically connected via a second trace or contact surface area 812. Since contacts C4 and C8 are defined as optional in current standards, the area around the contacts 622a and 622b may be grounded or remain electrically isolated from the other contacts 618a-c, 620a-b and 624a-c if the example UICC does not implement or support the high speed USB feature. In addition, contact C6 is also defined as optional in current standards, thus, the area around the contact 624b may be grounded or remain electrically isolated from the other mandatory contacts 618a-c, 622a-b , 624a and 624c (e.g., C1, C2, C3, C5, and C7) if the example UICC does not implement or support the SWP NFC capability.
As a result, as shown in
However, in contrast to the example contact pad 604 of the example UICC 600, the example second electrical contact pattern 1110 includes the electrical contact 1120 associated with the optional C6 contact. More specifically, the electrical contacts 1112-1116 are positioned in a first row 1134, the electrical contacts 1118-1122 are positioned in a second row 1136 adjacent the first row 1134, the electrical contacts 1124-1126 are positioned in a third row 1138 adjacent the second row 1136 and the electrical contacts 1128-1132 are positioned in a fourth row 1140 adjacent the third row 1138
In the orientation of
In the illustrated example, the first row 1134 includes a reset contact C2 positioned between a voltage contact C1 and a clock contact C3. The second and fourth rows 1136 and 1140 each includes a single-wire protocol contact C6 positioned between a ground contact C5, and an input/output contact C7. The third row 1138 includes first and second auxiliary contacts C4 and C8. Thus, the contact pad of
As shown in
As a result of the second electrical contact pattern 1110, an electronic device may employ an input device (e.g., the input device 1202) having a significantly smaller dimensional envelope and thereby significantly reducing an overall dimensional footprint of the electronic device. For example, an input device having approximately half a length and/or area of the UICC 1100 can be employed to interface with the UICC 1100. Further, an exposed portion 1204 of the UICC 1100 relative to the input device 1202 may provide a pick-out feature.
In the illustrated example, the electrical contacts 1412-1442 are positioned in a plurality of rows 1444-1450. More specifically, the electrical contacts 1412-1416 are positioned in a first row 1444, the electrical contacts 1424 and 1426 are arranged in a second row 1446, the electrical contacts 1428-1442 are arranged in a third row 1448, and the electrical contacts 1418-1822 are arranged in a fourth row 1450.
In the orientation of
Additionally, the electrical contacts 1428-1442 in the third row 1448 are aligned in substantially a straight orientation relative to each other. The electrical contacts 1428-1442 in the third row 1448 each have a dimensional profile or envelope that is smaller than a dimensional profile or envelope of the electrical contacts 1412-1426 positioned in the respective first, second and/or fourth rows 1444, 1446 and 1450. Each of the electrical contacts 1412-1422 has a width W1 and a height H1. In addition, each of the electrical contacts 1428-1442 has a width W2 and a height H2. In some examples, the height H1 may be substantially equal to the height H2 and the width W1 may be different than the width W2. In some examples, the heights H1 and H2 may be approximately between 1.7 and 2.1 millimeters. The width W1 may be between approximately 1.7 and 2.1 millimeters and the width W2 may be approximately between 0.7 and 0.9 millimeters. The electrical contacts 1428-1442 in the third row 1448 may be spaced-apart by a distance S1 of approximately between 0.1 and 0.3 millimeters. Further, the electrical contact 1428 in the third row 1448 is positioned adjacent a second edge 1452b of the UICC 1400 and the electrical contact 1442 of the third row 1448 is positioned adjacent a fourth edge 1452d of the UICC 1400. For example, a distance or clearance T1 between the electrical contacts and the respective edges may be approximately between 0.2 and 0.3 millimeters.
In the illustrated example, the first row 1444 of electrical contacts 1412-1416 includes a reset contact C2 positioned between a voltage contact C1 and a clock contact C3. The second row 1446 of electrical contacts 1424-1426 includes first and second auxiliary contacts C4 and C8. The fourth row 1450 of electrical contacts 1418-1422 includes a single-wire protocol contact C6 positioned between a ground contact C5, and an input/output contact C7. Thus, none of the electrical contacts in the first, second and fourth 1444, 1446 and 1450 rows have similar or common contact classification properties.
As shown in the illustrated example of
In some examples, the order of the contacts C1, C5, C4, C6, C2, C8 , C7 and C3 is not limited to the order shown in the example of
More specifically, the first input device 1502 is adapted to communicate or read the UICC 1400 based on the first electrical contact pattern 1408. In particular, the first input device 1502 may be configured to engage or communicate with the electrical contacts 1412-1416 of the first row 1444 and the electrical contacts 1418 and 1422 of the fourth row 1450. In the illustrated example, the electrical contacts 1412-1416, 1418 and 1422 include C1, C2, C3, C5, and C7 characteristics, respectively. Alternatively, the first input device 1502 may be configured to also read the electrical contacts 1424 and 1426 of the second row 1446 having C4 and C8 characteristics and the electrical contact 1420 of the fourth row 1450 having a C5, characteristic. For example, the first input device may be configured to communicate or engage the electrical contacts 1412-1416, 1418 and 1422 of the first pattern 1408 associated with classifications contacts C1, C2, C3, C5, and C7, and may optionally be configured to communicate or engage any one of the electrical contacts 1420-1426 associated with, for example, classification contacts C4, C6 and/or C8. For example, the first input device 1502 may be configured to communicate or engage with any one of the electrical contacts 1412-1416, 1418 and 1422 of the first pattern 1408 associated with classifications contacts C1, C2, C3, C5, and C7, and may optionally be configured to communicate or engage any one of the electrical contacts in the third row 1448 associated with, for example, classification contacts C4, C6 and/or C8. Further still, an input reader may be configured to communicate with one or more of the electrical contacts of the first electrical contact pattern 1408 and/or any one of the electrical contacts of the second electrical contact pattern 1410. Further, an input device may be configured to communicate with at least one of the electrical contacts in the first electrical contact pattern 1408 and at least one of the electrical contacts in the second electrical contact pattern 1410. In other words, the at least ones of the electrical contacts of the first and second electrical contact patterns 1408 and 1410 define a third electrical contact pattern of the UICC 1400.
As a result of the second electrical contact pattern 1410, an electronic device may employ an input device such as, for example, a single-row card reader such as a header-style or block style card reader having a significantly smaller dimensional envelope to significantly reduce an overall dimensional footprint of the electronic device. As shown in
For example, the electrical contacts 1412 and 1428 associated with the C1 classification are electrically coupled by a first surface contact area 1704, the electrical contacts 1414 and 1436 associated with the C2 classification are electrically coupled by a second surface contact area 1706, the electrical contacts 1416 and 1442 associated with the C3 classification are electrically coupled by a third surface contact area 1708, the electrical contacts 1424 and 1432 associated with the C4 classification are electrically coupled by a fourth surface contact area 1710, the electrical contacts 1418 and 1430 associated with the C5, classification are electrically coupled by a fifth surface contact area 1712, the electrical contacts 1420 and 1434 associated with the C6 classification are electrically coupled by a sixth surface contact area 1714, the electrical contacts 1422 and 1440 associated with the C7 classification are electrically coupled by a seventh surface contact area 1716, and the electrical contacts 1426 and 1438 associated with the C8 classification are electrically coupled by an eighth surface contact area 1718. In the illustrated example, each of the respective contact surfaces areas 1704-1718 is spaced-apart to expose portions of the surface 1404 between each of the respective contact surface areas 1704-1718. Such separation between the respective contact surface areas 1704-1718 facilitates isolation of the electrical contacts 1412-1442 having different classifications.
As a result of the contact surface areas 1704-1718, the amount of wire bonds needed to couple the electrical contacts 1412-1442 to an IC chip of the UICC 1400 is less than the number of electrical contact placements (e.g., sixteen) positioned on the surface of the UICC 1400. Thus, because electrical contacts having common classifications are connected via the respective contact surface areas 1702-1718, only eight wire bonds are needed to couple the IC chip and the electrical contact placements 1412-1442. However, because the C4 and C8 contacts (e.g., contacts 1414 and 1424) are defined as optional in current standards, some embodiments may only require 6 wire bonds (all contacts except C4 and C8 ). Additionally or alternatively, because the C6 contact is also considered optional in current standards, the UICC 1400 may only require 5 wire bonds if the example UICC 1400 does not implement or support the SWP NFC capability. Additionally, because the electrical contacts C4 and C8 are defined as optional in current standards, an area (e.g., the surface areas 1710 and 1718) surrounding the C4 and C8 contacts may remain electrically isolated from the other contacts C1, C2, C3, C5, C6 and C7 if the example UICC 1400 does not implement or support the high speed USB feature. In addition, contact C6 is also defined as optional in current standards, thus, the area (e.g., the surface area 1714) surrounding the C6 contact may remain electrically isolated from the other mandatory contacts (C1, C2, C3, C5, and C7) if the example UICC 1400 does not implement or support the SWP NFC capability.
In the orientation of
In the illustrated example, each of the electrical contacts 1912-1924 have a width W1 and a height H1 and each of the electrical contacts 1926-1940 have a width W2 and a height H2. In this example, the width W2 and the height H2 are different than the width W1 and the height H1, respectively. The width W2 may be approximately between 0.7 and 0.9 millimeters and the height H2 may be approximately between 2.9 and 3.1 millimeters. Providing electrical contacts such as the electrical contacts 1926-1940 that larger dimensional envelopes facilitate an electrical connection with an input device compared to electrical contacts having smaller dimensional envelopes or footprints. Each of the electrical contacts 1926-1940 may be spaced-apart by a gap S1 of approximately between 0.19 and 0.21 millimeters.
In the illustrated example of
Alternatively, a second input device may be configured to communicate or engage the second electrical contact pattern 1910. For example, the second input device may be configured to communicate or read at least the electrical contacts 1926, 1928, 1934, 1938 and 1940 of the third row 1948 which are associated with the contact classifications C1, C5, C2, C7 and C3, respectively. Further, the second input device may optionally be configured to communicate or read the electrical contacts 1930, 1932, and/or 1936 associated with the classifications C4, C6 and C8 , respectively.
Further, as shown in
Additionally or alternatively, the band 2306 enables a substantial portion 2308 of the surface 2204 of the example UICC 2200 to be exposed relative to the input device 2300. Such exposed portion 2308 of the UICC 2200 provides a greater area to enable a user to grasp or handle the UICC 2200 during insertion and/or removal of the UICC 2200 relative to the input device 2300. For example, the UICC 2200 may be inserted and/or removed from the input device 2300 without the use of additional tools.
Further, to facilitate insertion and/or removal of the UICC 2200 relative to the input device 2300, the example UICC 2200 employs a pick-out feature 2310. The pick-out feature 2310 enables a user to firmly grasp the UICC 2200 and pull it away from the opening 2302 in a direction opposite of the direction indicated by the arrow 2306. In the illustrated example, the pick-out feature 2310 comprises a raised lip or molded ridge 2312 protruding away from a second surface 2314 opposite the surface 2202 and adjacent the first edge 2316a. In other examples, the first surface 2202 may also include a raised lip or molded ridge (e.g., similar to the raised lip 2312) protruding away from the second surface 2314. In some examples, the pick-out feature 2310 may employ a slot or opening disposed along the first edge 2316a of the UICC 2200. In some examples, the pick-out feature 2310 may be an aperture positioned between the edges 2316b and 2316d and adjacent edge 2316a. In yet other examples, the pick-out feature 2310 may employ an opening or slot that is recessed in the first surface 2202 and/or the second surface 2314. In other words, a slot forms a recessed opening that does not pass through an entire thickness (e.g., the thickness 108 of
Having a single-row and/or staggered-row configuration employing contacts associated with classifications C5, C1, C2, C3 and C7 (and optionally Cr4 and C8 ) as shown in
Such a second electrical contact pattern 2608 and/or 2608a enables an edge 2738 of the electrical contact 2726 to be positioned or substantially aligned with a recessed edge 2740 of the retention feature 2702. In this manner, the second electrical contact patterns 2608 and/or 2608a reduce the possibility of the retention feature 2702 interfering with the electrical contact C1.
In the illustrated example, the electrical contacts 2908a-f, 2910a-e and 2912a-c are positioned in a plurality of rows 2914-2918. More specifically, the electrical contacts 2908a-c are positioned in the first row 2914, the electrical contacts 2910a-e and 2912a-c are positioned in the second row 2916, and the electrical contacts 2908d-f are arranged in the third row 2918.
In the orientation of
The electrical contacts 2912a, 2912c and 2912e of the second row 2916 are substantially aligned relative to each other and are positioned adjacent the third row 2918. The electrical contacts 2910b and 2910d of the second row 2916 are substantially aligned relative to each other and are positioned adjacent the first row 2914. The electrical contact 2912b is positioned between both the electrical contacts 2910b and 2910c and the electrical contacts 2910d and 2910e. The electrical contact 2912c is positioned between the edge 2920d and the electrical contacts 2910d and 2910e, and the electrical contact 2912a is positioned between the electrical contact 2910a and the electrical contacts 2910b and 2910c. In some examples, the electrical contact 2910a may be elongated (e.g., a dimensional profile) similar to the electrical contacts 2912a-c. Although not shown, in other examples, another electrical contact may be positioned between the electrical contact 2910a and the electrical contact 2908a.
The electrical contacts 2908a-c in the first and third rows 2914 and 2918 each have a dimensional profile or envelope that is different than a dimensional profile or envelope of the electrical contacts 2910a-e and 2912a-c positioned in the second row 2916. Further, each of the electrical contacts 2910a-e in the second row 2916 has a dimensional profile or envelope that is different than a dimensional profile or envelope of the electrical contacts 2912a-c. For example, each of the electrical contacts 2912a-c is elongated relative to the electrical contacts 2910a-e. In some examples, the height of each of the electrical contacts 2910a-e is half the height of each of the electrical contacts 2912a-c. In this manner, the electrical contacts 2910b and 2910c are positioned between electrical contacts 2912a and 2912b and the electrical contacts 2910d and 2910e are positioned between electrical contacts 2912b and 2912c. As a result, the electrical contacts 2912a-c span across a height in the third row that is greater than a height of the electrical contacts 2910a-e to enable the electrical contacts 2912a-c to be positioned adjacent two or more electrical contacts 2910a-e. In other words, the electrical contacts 2910a-e span only across a portion of the third row 2916 so that two or more electrical contacts 2910a-e may be positioned adjacent (e.g., immediately adjacent) to the electrical contacts 2912a-c (e.g., the electrical contacts 2910a-e can be positioned in pairs relative to the electrical contacts 2910a-c).
For example, each of the electrical contacts 2908a-f has a width W1 and a height H1, each of the electrical contacts 2910a-e has a width W2 and a height H2, and each of the electrical contacts 2912a-c has a width W3 and H3. For example, the width W1 may be approximately between 1.5 and 2.5 millimeters and the heights H1 and H2 may be approximately between 1.8 and 2.8 millimeters. The widths W2 and W3 may be approximately between 0.6 and 0.9 millimeters and the Height H3 may be approximately between 3.5 and 5.0 millimeters. Thus, in some examples, the height H1 may be substantially equal to the Height H2 and the width W2 may be substantially equal to the width W3. Further, the electrical contacts 2910a-e and 2912a-c in the third row 2916 may be spaced-apart by a distance S1 of approximately between 0.1 and 0.3 millimeters and the electrical contacts 2908a-f in the respective first and third rows 2914 and 2918 may be spaced-apart by a distance S2.
In the illustrated example, the electrical contacts 2908a-f may be defined by electrical contacts C1, C2, C3, C5, C6 and C7, respectively. The electrical contacts 2908a-e may be defined by electrical contacts C5′, C4, C6′, C2′, C8 and C7′, respectively. The electrical contacts 2910a-c may be defined by electrical contacts C1′, C2′, and C3′, respectively.
For example, the first row 2914 of electrical contacts 2908a-c includes a reset contact C2 positioned between a voltage contact C1 and a clock contact C3 and the third row 2918 of electrical contacts 2908d-f includes a single-wire protocol contact C6 positioned between a ground contact C5, and an input/output contact C7. The second row 2916 includes a reset contact C2 (represented by electrical contact 2910b) positioned between the first auxiliary contact C4 and the single-wire protocol C6 and the second auxiliary contact C8 and the input/output contact C7. More specifically, the first auxiliary contact C4 is positioned (e.g., immediately) adjacent the single-wire protocol C6 and the second auxiliary contact C8 is positioned (e.g., immediately) adjacent the input/output contact C7. Stated differently, the first auxiliary contact C4 is aligned with the single-wire protocol contact C6 and the first auxiliary contact C4 is positioned adjacent the first row 2914 and the single-wire protocol contact C6 is positioned adjacent the third row 2918. Because the electrical contact 2912b is elongated relative to the electrical contacts 2910b-e, the reset contact C2 is positioned relative or adjacent to all four contacts C4, C6, C8 and C7. Similarly, the clock contact C3 in the second row 2916 is positioned adjacent the second auxiliary C8 and the input/output device C7, and the voltage contact C1 of the second row 2916 is positioned between the ground contact C5, and the first auxiliary C4 and the single-wire protocol contact C6. Because the voltage contact C1 in the second row 2916 is elongated relative to the first auxiliary contact C4 and the single-wire protocol C6, the voltage contact C1is positioned adjacent both contacts C4 and C6.
The example UICC 2900 of the illustrated example also employs a retention feature or locking feature 2922 (e.g., a notch). The retention feature 2922 of the illustrated example is formed or positioned adjacent the edge 2920b and between the edges 2920a and 2920c. Additionally, the retention feature 2922 is positioned closer to a leading edge or the edge 2920c than to the edge 2920a. Positioning the retention feature closer to a leading edge (e.g., the edge 2920c) enables use of a smaller profile input or card reader. Additionally or alternatively, positioning the retention feature 2922 away from a mid-point or center point of the edge 2920b reduces or prevents interference with a chip cavity of the body 2902. Further the retention feature 2922 is positioned adjacent the electrical contacts 2910a and 2908d. More specifically, a recessed edge 2924 of the retention feature is spaced-apart from the electrical contacts 2910a and 2908d by a clearance T1. For example, the clearance T1 is approximately between 0.1 and 0.3 millimeters. In the illustrated example, the body 2902 may also include a chamfered or tapered edge 2926 to facilitate orientation of the UICC 2900 relative to an input device.
More specifically, the first input device 3000 is adapted to communicate or read the UICC 2900 based on a first electrical contact pattern 3006 of the UICC 2900. For example, the first input device 3000 may be a legacy input device configured to communicate with a conforming electrical contact pattern (e.g., the electrical contact pattern 3006) provided by the UICC 2900.
The first electrical contact pattern 3006 of the illustrated example is defined by the electrical contacts 2908a-d and 2908f. In some examples, the first electrical contact pattern 3006 may include electrical contact 2908e, 2910b and/or 2910d. For example, the first input device 3000 may be configured to communicate or engage the electrical contacts 2908a-d and 2908f of the first pattern 3006 associated with classifications contacts C1, C2, C3, C5, and C7, and may optionally be configured to communicate or engage any one of the electrical contacts 2908e, 2910b and/or 2910d associated with, for example, classification contacts C6, C4 and/or C8. In particular, in the illustrated example, the electrical contacts 2908a-d and 2908f include C1, C2, C3, C5, and C7 characteristics, respectively. Alternatively, the first input device 3000 may be configured to also read the electrical contacts 2910b and 2910d of the second row 2916 having C4 and C8 characteristics and the electrical contact 2908e of the third row 2918 having a C6 characteristic.
As a result of the second electrical contact pattern 3102, an electronic device may employ an input device such as, for example, a single-row card reader (e.g., a header-style or block style card reader) having a significantly smaller dimensional envelope which, in turn, significantly reduces an overall dimensional footprint of the electronic device. As shown in
For example, the electrical contacts 2908a and 2912a associated with the C1classification are electrically coupled by a first surface contact area 3504, the electrical contacts 2908b and 2912b associated with the C2 classification are electrically coupled by a second surface contact area 3506, the electrical contacts 2908c and 2912c associated with the C3 classification are electrically coupled by a third surface contact area 3508, the electrical contacts 2910a and 2908d associated with the C5, classification are electrically coupled by a fourth surface contact area 3510, the electrical contacts 2910c and 2908e associated with the C6 classification are electrically coupled by a fifth surface contact area 3512, and the electrical contacts 2910e and 2908f associated with the C7 classification are electrically coupled by a sixth surface contact area 3514.
As a result of the contact surface areas 3504-3518, the amount of wire bonds needed to couple the electrical contacts 2908a-f, 2910a-e and 2912a-c to an IC chip of the UICC 2900 is less than the number of electrical contact placements (e.g., fourteen) positioned on the surface of the UICC 2900. Thus, because electrical contacts having common classifications are connected via the respective contact surface areas 3504-3518, only eight wire bonds are needed to couple the IC chip and the electrical contact placements 2908a-f, 2910a-e and 2912a-c. However, because the C4 and C8 contacts (e.g., contacts 2910b and 2910d) are defined as optional in current standards, some embodiments may only require 6 wire bonds (all contacts except C4 and C8). Additionally or alternatively, because the C6 contact is also considered optional in current standards, the UICC 2900 may only require 5 wire bonds if the example UICC 2900 does not implement or support the SWP NFC capability. Additionally, because the electrical contacts C4 and C8 are defined as optional in current standards, an area (e.g., the surface areas 3516 and 3518) surrounding the C4 and C8 contacts may remain electrically isolated from the other contacts C1, C2, C3, C5, C6 and C7 if the example UICC 2900 does not implement or support the high speed USB feature. In addition, contact C6 is also defined as optional in current standards, thus, the area (e.g., the surface area 3512) surrounding the C6 contact may remain electrically isolated from the other mandatory contacts (C1, C2, C3, C5, and C7) if the example UICC 2900 does not implement or support the SWP NFC capability.
Additionally or alternatively, an area 3520 between the areas 3504 and 3510 may be configured as another electrical contact classification. For example, the area 3520 may be configured as a known classification (C1-C8 ) and/or may be reserved to provide another classification contact not yet determined.
The present disclosure may be embodied in other specific forms without departing from its spirit or essential characteristics. The described embodiments are to be considered in all respects only as illustrative and not restrictive. The scope of the disclosure is, therefore, indicated by the appended claims rather than by the foregoing description. All changes that come within the meaning and range of equivalency of the claims are to be embraced within their scope.
This patent application claims the benefit of U.S. Provisional Patent Application Ser. No. 61/624,219, filed on Apr. 13, 2012, entitled UICC APPARATUS AND RELATED METHODS, which is hereby incorporated herein by reference in its entirety.
Number | Date | Country | |
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61624219 | Apr 2012 | US |