Method for Fabricating a Smart Card Device
First Claim
1. :
- A method for fabricating a smart card device, the method comprising;
providing a carrier core in which a flexible film having a plurality of conductor patterns is interposed between a first substrate and a second substrate, characterised in that each of the conductor patterns includes;
at least one flip chip,at least one contact pad arranged at an offset relative to the at least one flip chip,at least one conductor path electrically coupling the at least one contact pad to the at least one flip chip, wherein the at least one conductor path and the at least one contact pad are formed on the flexible film,wherein the step of providing a carrier core in which a flexible film having a plurality of conductor patterns is interposed between a first substrate and a second substrate further includes;
exposing the at least one contact pad through at least one cavity in the second substrate; and
laminating the carrier core to produce a laminated carrier core in which the at least one contact pad is projected through the at least one cavity in the second substrate to form a continuous even plane from an outer surface of the laminated carrier core to the at least one contact pad such that a region between the contact pad and the outer surface of the laminated carrier core is devoid of gap.
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Accused Products
Abstract
Embodiments of the invention relate to processes for fabricating a smart device, e.g. smart card, and configurations for smart card devices with greater reliability and lifespan, and improved finish. In the smart card device comprising of laminated substrate layers interposing a flexible film having conductor pattern thereon, at least one flip chip for operating the smart card device is embedded in a first substrate such that the first substrate provides an encapsulation to the at least one flip chip, wherein the at least one flip chip is arranged at a position in a first vertical plane; and a contact pad, for providing electrical connection when the smart card device is inserted into a smart card reader, is arranged at a position in a second vertical plane, wherein the first vertical plane is non-overlapping with the second vertical plane. The contact pad is projected through a cavity in a second substrate to form a continuous even plane from an outer surface of the laminated substrate layers to the contact pad.
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26 Claims
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1. :
- A method for fabricating a smart card device, the method comprising;
providing a carrier core in which a flexible film having a plurality of conductor patterns is interposed between a first substrate and a second substrate, characterised in that each of the conductor patterns includes; at least one flip chip, at least one contact pad arranged at an offset relative to the at least one flip chip, at least one conductor path electrically coupling the at least one contact pad to the at least one flip chip, wherein the at least one conductor path and the at least one contact pad are formed on the flexible film, wherein the step of providing a carrier core in which a flexible film having a plurality of conductor patterns is interposed between a first substrate and a second substrate further includes; exposing the at least one contact pad through at least one cavity in the second substrate; and laminating the carrier core to produce a laminated carrier core in which the at least one contact pad is projected through the at least one cavity in the second substrate to form a continuous even plane from an outer surface of the laminated carrier core to the at least one contact pad such that a region between the contact pad and the outer surface of the laminated carrier core is devoid of gap. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
- A method for fabricating a smart card device, the method comprising;
Specification