Counter-Based Compaction: Delay and Stuck-Open Faults

  • Authors:
  • Kevin J. Wiebe;Slawomir Pilarski

  • Affiliations:
  • -;-

  • Venue:
  • IEEE Transactions on Computers
  • Year:
  • 1995

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Abstract

In this paper, we study the properties of all major counter-based compaction schemes when the circuit under test is affected by delay or stuck-open faults. We present an error model that accurately describes the behavior of such circuits. The error model inherits from the asymmetric error model [1] and the model used in [2]. Using this model, we compute exact aliasing probability for any test session length; we also determine the asymptotic aliasing probability. Examples that compare aliasing in counter-based compaction with aliasing in LFSRs indicate that the latter is more 驴predictable.驴