Regression Simulation: Applying Path-Based Learning In Delay Test and Post-Silicon Validation

  • Authors:
  • Li-C. Wang

  • Affiliations:
  • -

  • Venue:
  • Proceedings of the conference on Design, automation and test in Europe - Volume 1
  • Year:
  • 2004

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Abstract

This paper presents a novel path-based learning methodology to achieve timing Regression Simulation. The methodology can be applied for two purposes: (1) In pre-silicon phase, regression simulation can be used to produce a fast and approximate timing simulator to avoid the high cost associated with statistical timing simulation. (2) In post-silicon phase, regression simulation can be used as a vehicle to deduce critical paths from the pass/fail behavior observed on the test chips. Our path-based learning methodology consists of four major components: a delay test pattern set, a logic simulator, a set of selected paths as the basis for learning, and a machine learner. We summarize the key concepts in our regression simulation approach and present experimental results.