On Necessary and Sufficient Conditions for Multiple Fault Undetectability

  • Authors:
  • J. E. Smith

  • Affiliations:
  • University of Wisconsin-Madison

  • Venue:
  • IEEE Transactions on Computers
  • Year:
  • 1979

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Abstract

This correspondence states necessary and sufficient conditions for a multiple stuck-at fault in a combinational network to be undetected by a test set. The conditions are given in terms of fault masking relationships. It is shown that several other statements on this subject which have appeared in the literature are invalid.