Integrated circuit chip made secure against the action of electromagnetic radiation
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United States of America Patent
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Mar 20, 2012
Grant Date -
N/A
app pub date -
Oct 8, 1999
filing date -
Oct 16, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A chip for a chip-incorporating portable article having a card format, such as for smartcards. The chip includes a silicon substrate layer having integrated circuits in its active face defining a central processor unit and memories. The chip also includes physical means for providing physical protection against the action of electromagnetic radiation in the infrared range of wavelength longer than 1 μm.
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