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Compacting circuit responses

  • US 7,574,640 B2
  • Filed: 09/05/2003
  • Issued: 08/11/2009
  • Est. Priority Date: 09/05/2003
  • Status: Active Grant
First Claim
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1. A method comprising:

  • forming a compactor matrix for a response compactor circuit; and

    for each scan chain that produces an unknown logic value at the same time as another scan chain produces an unknown value, adding at least two columns to said matrix.

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