Method for making contactless cards
First Claim
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1. A contactless smart card, comprising:
- an insulating substrate having the form factor of a smart card;
an antenna made from a conductive material disposed on said substrate, said antenna having a surface remote from said substrate that defines a plane;
an integrated circuit chip having a planar surface with contact pads thereon; and
metallized protrusions disposed on said contact pads, respectively, that extend away from said surface of said chip;
wherein said planar surface of said chip is contiguous with the plane defined by said surface of said antenna and said metallized protrusions are embedded in the material of said antenna.
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Abstract
A method for producing contact-free chip card includes embedding metallized bumps of the chip into an antenna as the chip is mounted on the antenna.
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Citations
6 Claims
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1. A contactless smart card, comprising:
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an insulating substrate having the form factor of a smart card;
an antenna made from a conductive material disposed on said substrate, said antenna having a surface remote from said substrate that defines a plane;
an integrated circuit chip having a planar surface with contact pads thereon; and
metallized protrusions disposed on said contact pads, respectively, that extend away from said surface of said chip;
wherein said planar surface of said chip is contiguous with the plane defined by said surface of said antenna and said metallized protrusions are embedded in the material of said antenna. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification