QC-fill: an X-fill method for quick-and-cool scan test

  • Authors:
  • Chao-Wen Tzeng;Shi-Yu Huang

  • Affiliations:
  • National Tsing-Hua University, Taiwan;National Tsing-Hua University, Taiwan

  • Venue:
  • Proceedings of the Conference on Design, Automation and Test in Europe
  • Year:
  • 2009

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Abstract

In this paper, we present an X-Fill (QC-Fill) method for not only slashing the test time but also reducing the test power (including both capture power and shifting power). QC-Fill, built upon the existing multicasting scan architecture, can coexist with most low-capture-power (LCP) X-fill methods through a multicasting-driven X-fill method incorporating a clique-stripping scheme. QC-Fill is independent of the ATPG patterns and does not require any area-overhead since it can directly operate on an existing scan architecture incorporating test compression.