Diagnostic Test Generation for Sequential Circuits

  • Authors:
  • Xiaoming Yuy;Jue Wuz;Elizabeth M. Rudnicky

  • Affiliations:
  • -;-;-

  • Venue:
  • ITC '00 Proceedings of the 2000 IEEE International Test Conference
  • Year:
  • 2000

Quantified Score

Hi-index 0.00

Visualization

Abstract

Efficient diagnosis of faults in VLSI circuits requireshigh quality diagnostic test sets. In this work, noveltechniques for diagnostic test generation are proposedthat require significantly less time than previous methods. The set of fault pairs left undistinguished by adetection-oriented test set is first filtered to target onlytestable faults. Then diagnostic test generation is performed using a genetic algorithm (GA) combined with adiagnostic fault simulator. A new fitness metric is proposed for the GA that accurately measures the qualityof candidate sequences while requiring a limited amountof CPU time. Experimental results illustrate the effectiveness of the approach for sequential circuits.