Integrated circuit card comprising means for the protection of the integrated circuit
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United States of America Patent
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-
Nov 12, 1996
Grant Date -
N/A
app pub date -
Aug 15, 1994
filing date -
Nov 25, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system for protecting integrated circuits on smart cards is described. The circuit (103) is placed in a cavity (102) in a ceramic package (101). Standard contacts (104) are deposited on the side of the package opposite to the cavity opening and connected to the chip (103) via feed-through conductors (106) extending into the cavity (102) and connected therein to wires (105) which are welded to the chip (103). The cavity (102) is either sealed by a lead (108) or filled with a protective material (208). Smart cards with a lifetime of over ten years may thus be obtained.
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