Prevention of tampering in electronic devices
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United States of America Patent
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Mar 3, 2009
Grant Date -
Oct 27, 2005
app pub date -
Jun 1, 2003
filing date -
Jun 4, 2002
priority date (Note) -
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Abstract
Circuitry for protection of an integrated circuit (20) which includes operational-circuits (24) formed on a chip (21). The circuitry includes a plurality of detectors (26), integrally formed on the chip as part of the integrated circuit and dispersed among the operational-circuits on the chip. The detectors are adapted, in response to radiation incident on the chip, to trigger a security measure so as to prevent tampering with the integrated circuit.
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