Test Structure Verification of Logical BIST: Problems and Solutions

  • Authors:
  • Michael Cogswell;Don Pearl;James Sage;Alan Troidl

  • Affiliations:
  • -;-;-;-

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

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Abstract

Test Structure Verification (TSV) is the process used to assess the conformance of a circuit to a set of predefined Design For Testability (DFT) rules. Test generation algorithms are typically optimized for circuits that are highly testable, so Test Structure Verification (TSV)ultimately indicates the overall testability of a circuit.Logical BIST (Built In Self Test) is a methodology basedon signature analysis which produces patterns used to verify the correctness of the manufactured circuit via specially designed BIST hardware. This paper describes aset of proven production level procedures used to identifyand verify the test structure and behavior of BIST hardware. These algorithms are based on the TSV implementation of IBM's TestBench test generation system.