A Novel Transition Fault ATPG That Reduces Yield Loss

  • Authors:
  • Xiao Liu;Michael S. Hsiao

  • Affiliations:
  • Texas Instruments;Virginia Polytechnic Institute and State University

  • Venue:
  • IEEE Design & Test
  • Year:
  • 2005

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Abstract

Transition delay tests are crucial to finding ICs with timing defects, but they can also find functionally untestable timing-related faults, thus reducing yield. This article describes an ATPG with constraints that prevent it from using the illegal states that lead to this overtesting.