Effective Techniques for High-Level ATPG

  • Authors:
  • Fulvio Corno;Gianluca Cumani;Matteo Sonza Reorda;Giovanni Squillero

  • Affiliations:
  • -;-;-;-

  • Venue:
  • ATS '01 Proceedings of the 10th Asian Test Symposium
  • Year:
  • 2001

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Abstract

The ASIC design flow is rapidly moving towards higher description levels, and most design activities are now performed at the RT-level. However, test-related activities are lacking behind this trend, mainly since effective fault models and test pattern generation tools are still missing. This paper proposes techniques for implementing a high-Ievel ATPG. The proposed algorithm mixes a code coverage-oriented approach with fault-oriented optimizations. Moreover, it exploits a fault model at the RT-level that enables efficient fault simulation and guarantees good correlation with gate-level fault coverage. Experimental results show that theachieved results are comparable or better than those obtained at the gate level or by similar RT-level approaches.