Fault dictionary compaction by output sequence removal

  • Authors:
  • Vamsi Boppana;W. Kent Fuchs

  • Affiliations:
  • Coordinated Science Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL;Coordinated Science Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL

  • Venue:
  • ICCAD '94 Proceedings of the 1994 IEEE/ACM international conference on Computer-aided design
  • Year:
  • 1994

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Abstract

Fault dictionary compaction has been accomplished in the past by removing responses on individual output pins for specific test vectors. In contrast to the previous work, we present techniques for eliminating entire sequences of outputs and for efficiently storing the remaining output sequences. Experimental results on the ISCAS 85 and ISCAS 89 benchmark circuits show that the sizes of dictionaries proposed are substantially smaller than the full fault dictionary, while the dictionaries retain most or all of the diagnostic capability of the full fault dictionary.