DIAGNOSIS OF BRIDGING FAULTS IN SEQUENTIAL CIRCUITS USING ADAPTIVE SIMULATION, STATE STORAGE, AND PATH-TRACING

  • Authors:
  • Srikanth Venkataraman;W. Kent Fuchs

  • Affiliations:
  • -;-

  • Venue:
  • ITC '97 Proceedings of the 1997 IEEE International Test Conference
  • Year:
  • 1997

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Abstract

A diagnosis technique that integrates the storage of precomputedinformation with some dynamic computation forthe diagnosis of bridging faults in synchronous sequentialcircuits with no-scan or partial-scan is presented. Themethod addresses the accuracy, storage requirements, andcomputational complexity required for diagnosis. A combinationof adaptively simulating the behavior of a bridgingfault and storing faulty state information at select vectorsensures accuracy with low storage requirements. Thecombination of adaptive simulation, state storage, and pathtracinghas low computational requirements. Experimentalresults are provided for the ISCAS89 benchmark circuits.