Tailoring ATPG for Embedded Testing

  • Authors:
  • Rainer Dorsch;Hans-Joachim Wunderlich

  • Affiliations:
  • -;-

  • Venue:
  • ITC '01 Proceedings of the 2001 IEEE International Test Conference
  • Year:
  • 2001

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Abstract

An automatic test pattern generation (ATPG)method is presented for a scan-based test architecture which minimizesATE storage requirements and reduces the bandwidth betweenthe automatic test equipment (ATE) and the chip under test.To generate tailored deterministic test patterns, a standard ATPGtool performing dynamic compaction and allowing constraints oncircuit inputs is used. The combination of an appropriate test architectureand the tailored test patterns reduces the test data volumeup to two orders of magnitude compared with standard compactedtest sets.