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RFIDs embedded into semiconductors

  • US 7,348,887 B1
  • Filed: 06/15/2005
  • Issued: 03/25/2008
  • Est. Priority Date: 06/15/2004
  • Status: Expired due to Fees
First Claim
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1. A radio-frequency identification (RFID) system comprising:

  • an RFID device comprising an RFID transceiver interconnected to a semiconductor device;

    an RFID reader;

    means for generating an encoded signal;

    means for transmitting said encoded signal between said RFID reader and said RFID transceiver;

    means for generating a signal based on said received encoded signal;

    means for transmitting said generated signal from said RFID transceiver to said RFID reader;

    means for determining if a proper said encoded signal is received at said RFID transceiver; and

    means for permanently or temporarily modifying or destroying said semiconductor device if said proper encoded signal is not received at said RFID transceiver within a period of time around when an indication of tampering or probing of said semiconductor device or packaging of said semiconductor device is received by the RFID device.

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