Dynamic Test Compaction for Bridging Faults

  • Authors:
  • Irith Pomeranz;Sudhakar M. Reddy

  • Affiliations:
  • Purdue University, W. Lafayette, IN;University of Iowa, Iowa City, IA

  • Venue:
  • ISQED '05 Proceedings of the 6th International Symposium on Quality of Electronic Design
  • Year:
  • 2005

Quantified Score

Hi-index 0.00

Visualization

Abstract

We describe a dynamic test compaction procedure for four-way bridging faults.Under this fault model, a pair of lines g_i , g_j is associated with four bridging faults corresponding to two possible combinations of opposite values on g_i and g_j , and two options for the line whose value is faulty in the presence of the fault (either g_i or g_j ). Compaction is achieved by simultaneously considering faults that have a line g_i with a value 驴_i in common, such that the value 驴_i and g_i is affected by the presence of the fault.Faults with a common line g_i and value 驴_i differ only in the second line g_j of each pair of bridged lines, and the second lines only need to be assigned the value \bar \alpha _iin order to detect all the faults.This strong relationship between the faults allows us to derive tests that detect large numbers of these faults, resulting in compact test sets.