Relatively unique ID in integrated circuit
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United States of America Patent
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Feb 9, 2010
Grant Date -
Sep 16, 2004
app pub date -
Dec 2, 2003
filing date -
Dec 2, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A method of manufacturing a series of integrated circuits having related functionality, the method including the steps of: (a) determining an identifier; (b) permanently storing the identifier on one of the integrated circuits; (c) repeating steps (a) and (b) for each integrated circuit in the series; and wherein the identifiers for the series are determined in such a way that knowing the identifier of one of the integrated circuits does not improve the ability of an attacker to determine the identifier of any of the other integrated circuits.
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