Self Test Architecture for Testing Complex Memory Structures

  • Authors:
  • Kamran Zarrineh;R. Dean Adams;Thomas J. Eckenrode;Steven P. Gregor

  • Affiliations:
  • -;-;-;-

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

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Abstract

The structural complexity and test challenges of complexdependent memory structures are described. An isolationstrategy to minimize the test logic overhead and delay penaltyis presented. A set of custom memory test algorithms isdesigned to test the memory cell, bridging and multi-portfaults in complex dependent memory structures. A novelprogrammable memory BIST architecture to realize the developed custom memory test algorithms has been described.The proposed memory BIST architecture can be used to testthe dependent memory structures in different stages of theirfabrication and assembly. The experimental results demonstrate the area overhead of different components of the proposed programmable memory BIST architecture.