Bridging Fault Extraction from Physical Design Data for Manufacturing Test Development

  • Authors:
  • Charles E. Stroud;John M. Emmert;James R. Bailey;Khushru S. Chhor;Dragomir Nikolic

  • Affiliations:
  • -;-;-;-;-

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

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Abstract

In this paper we explore the process of extractingpotential bridging fault sites from the physical designdatabase for VLSI devices by using standard extraction toolsfor fringe and overlap capacitance. We then use theextracted capacitance to create a list of potential bridgingfault sites ordered to reflect the relative probability of abridging fault occurring at each site. As a result, potentialbridging fault sites can be rank-ordered for manufacturingtest development such that the most likely site can betargeted first. In this way we improve the overall efficiencyand effectiveness of the test development process. We haveimplemented this technique for the Delta 39K驴 series ofComplex Programmable Logic Devices (CPLDs) by CypressSemiconductor and describe the results obtained for thatdevice.