Selection of Potentially Testable Path Delay Faults for Test Generation

  • Authors:
  • Atsushi Murakami1;Seiji Kajihara;Tsutomu Sasao;Irith Pomeranz;Sudhakar M. Reddy

  • Affiliations:
  • -;-;-;-;-

  • Venue:
  • ITC '00 Proceedings of the 2000 IEEE International Test Conference
  • Year:
  • 2000

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Abstract

We present a method of path selection and test generationfor path delay faults. The proposed method addresses thefact that logic circuits typically have very large numbers ofpaths, and a large percentage of these paths are typicallyuntestable. The proposed method selects a set of potentiallytestable long paths by utilizing non-enumerativeidentification of untestable paths and removing untestablepaths from consideration. Test generation is also applied aspart of the proposed method. We demonstrate the effectivenessof the method by presenting results for benchmarkcircuits.