Delay test of chip I/Os using LSSD boundary scan

  • Authors:
  • Pamela S. Gillis;Francis Woytowich;Kevin McCauley;Ulrich Baur

  • Affiliations:
  • -;-;-;-

  • Venue:
  • ITC '98 Proceedings of the 1998 IEEE International Test Conference
  • Year:
  • 1998

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Abstract

This paper describes a novel design-for-test (DFT) conceptfor I/O delay testing while contacting very few pads,using boundary scan and new test-generation software. Inproduction testing of the IBM System/390 Generation 3驴and several ASIC chips, these patterns uncovered uniquemanufacturing defects.