A Comparison of Bridging Fault Simulation Methods

  • Authors:
  • Siyad Ma;Imtiaz Shaik;R. Scott Fetherston

  • Affiliations:
  • -;-;-

  • Venue:
  • ITC '99 Proceedings of the 1999 IEEE International Test Conference
  • Year:
  • 1999

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Abstract

This study provides bridging fault simulation dataobtained from the AMD-K6 microprocessor.It shows that:1) high stuck-at fault coverage (99.5%) implies highbridging fault coverage; 2) coverage of a bridging fault byboth wired-AND and wired-OR behavior does notguarantee detection of that fault when compared against amore accurate (transistor-level simulation) modelingmethod.A set of netname pairs representing bridging faultsites were extracted from layout and used for each faultmodeling method.Results show that pattern generationshould be driven by the most accurate modeling methodwhen pursuing 100% bridging coverage, since lessaccurate methods will not necessarily converge to a highquality result.