Defect-Oriented Sampling of Non-Equally Probable Faults in VLSI Systems

  • Authors:
  • F. M. Gonçalves;J. P. Teixeira

  • Affiliations:
  • IST/INESC, Apartado 13069, 1017 Lisboa Codex, Portugal;IST/INESC, Apartado 13069, 1017 Lisboa Codex, Portugal

  • Venue:
  • Journal of Electronic Testing: Theory and Applications
  • Year:
  • 1999

Quantified Score

Hi-index 0.00

Visualization

Abstract

The purpose of this paper is to present a novel methodology forDefect-Oriented (DO) fault sampling, and its implementation in a newextraction tool, lobs (\underline Layout \underline Observer). The methodology is based on the statistics theory, and on the application of the concepts ofestimation of totals over subpopulations and stratified sampling tothe fault sampling problem. The proposed stratified samplingmethodology applies to non-equally probable DO faults, exhibiting a wide range of probabilities ofoccurrence, and leads to confidence intervalssimilar to the ones obtained with equally probable faults. ISCAS benchmark circuits arelaid out and lobs used to ascertain the results, for circuitsup to 100,000 MOS transistors, and extracted DO fault lists of 300,000faults.