DUAL-INTERFACE SMART CARD
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United States of America Patent
Stats
-
N/A
Issued Date -
Oct 4, 2012
app pub date -
Jun 14, 2012
filing date -
Jan 31, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A dual-interface smart card comprises an integrated circuit (IC) module coupled to a plastic card body. The IC module includes multiple contact pads that are electrically coupled to corresponding sections of a radio frequency (RF) antenna incorporated into the card body. Each contact pad is electrically connected to the RF antenna by a pair of opposing conductive elements, with one conductive element being permanently welded to the contact pad and the other permanently welded to the antenna. Each conductive element is in the form of a multi-stranded braided wire that is frayed at each end, the frayed ends of opposing conductive elements entangling each other upon assembly to establish redundant, resilient electrical connection between the contact pad and the antenna. To further increase the reliability of the connection between each contact pad and the antenna, the entangled frayed ends of opposing conductive elements are encapsulated within a conductive filler material.
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