A hybrid dictionary test data compression for multiscan-based designs

Youhua Shi*, Shinji Kimura, Masao Yanagisawa, Tatsuo Ohtsuki

*この研究の対応する著者

研究成果査読

抄録

In this paper, we present a test data compression technique to reduce test data volume for multiscan-based designs. In our method the internal scan chains are divided into equal sized groups and two dictionaries were build to encode either an entire slice or a subset of the slice. Depending on the codeword, the decompressor may load all scan chains or may load only a group of the scan chains, which can enhance the effectiveness of dictionary-based compression. In contrast to previous dictionary coding techniques, even for the CUT with a large number of scan chains, the proposed approach can achieve satisfied reduction in test data volume with a reasonable smaller dictionary. Experimental results showed the proposed test scheme works particularly well for the large ISCAS'89 benchmarks.

本文言語English
ページ(範囲)3193-3199
ページ数7
ジャーナルIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
E87-A
12
出版ステータスPublished - 2004 12

ASJC Scopus subject areas

  • 信号処理
  • コンピュータ グラフィックスおよびコンピュータ支援設計
  • 電子工学および電気工学
  • 応用数学

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