Techniques for improving the efficiency of sequential circuit test generation

  • Authors:
  • Xijiang Lin;Irith Pomeranz;Sudhakar M. Reddy

  • Affiliations:
  • Mentor Graphics Corporation, 8005 S.W. Boeckman, Wilsonville, OR and Department of Electrical and Computer Engineering, University of Iowa, Iowa City, Iowa;Electrical and Computer Engineering Department, University of Iowa, Iowa City, IA;Electrical and Computer Engineering Department, University of Iowa, Iowa City, IA

  • Venue:
  • ICCAD '99 Proceedings of the 1999 IEEE/ACM international conference on Computer-aided design
  • Year:
  • 1999

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Abstract

New techniques are presented in this paper to improve the efficiency of a test generation procedure for synchronous sequential circuits. These techniques aid the test generation procedure by reducing the search space, carrying out non-chronological backtracking, and reusing the test generation effort. They have been integrated into an existing sequential test generation system MIX to constitute a new system, named MIX-PLUS. The experimental results for the ISCAS-89 and ADDENDUM-93 benchmark circuits demonstrate the effectiveness of these techniques in improving the fault coverage and test generation efficiency.