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.
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Youhua SHI, Shinji KIMURA, Masao YANAGISAWA, Tatsuo OHTSUKI, "A Hybrid Dictionary Test Data Compression for Multiscan-Based Designs" in IEICE TRANSACTIONS on Fundamentals,
vol. E87-A, no. 12, pp. 3193-3199, December 2004, doi: .
Abstract: 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.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/e87-a_12_3193/_p
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@ARTICLE{e87-a_12_3193,
author={Youhua SHI, Shinji KIMURA, Masao YANAGISAWA, Tatsuo OHTSUKI, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={A Hybrid Dictionary Test Data Compression for Multiscan-Based Designs},
year={2004},
volume={E87-A},
number={12},
pages={3193-3199},
abstract={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.},
keywords={},
doi={},
ISSN={},
month={December},}
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TY - JOUR
TI - A Hybrid Dictionary Test Data Compression for Multiscan-Based Designs
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 3193
EP - 3199
AU - Youhua SHI
AU - Shinji KIMURA
AU - Masao YANAGISAWA
AU - Tatsuo OHTSUKI
PY - 2004
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E87-A
IS - 12
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - December 2004
AB - 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.
ER -