Test Width Compression for Built-In Self Testing

  • Authors:
  • Krishnendu Chakrabarty;Brian T. Murray;Jian Liu;Minyao Zhu

  • Affiliations:
  • -;-;-;-

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

Quantified Score

Hi-index 0.00

Visualization

Abstract

We present a method for designing test generatorcircuits (TGCs) that incorporate a precomputed testset TD in the patterns they produce. Our methoduses width compression based on the property of d-compatibles, which allows us to encodeTD more efficiently than previous methods that use only compatibles and inverse compatibles. The TGC consists ofcounter, which generates a set of encoded test patterns, and a decompression circuit consisting of simplebinary decoders that generate a final sequence containing TD. These TGCs are applicable to embedded-corecircuits whose detailed designs are not available. Wedemonstrate the effectiveness of our approach by presenting experimental results for the ISCAS 85 and ISCAS 89 benchmark circuits.