An Adaptive Decompressor for Test Application with Variable-Length Coding
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- Ichihara Hideyuki
- Faculty of Information Sciences, Hiroshima City University
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- Ochi Masakuni
- Graduate School of Information Sciences, Hiroshima City University Presently with Koga Software Company
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- Shintani Michihiro
- Graduate School of Information Sciences, Hiroshima City University Presently with Semiconductor Company, Matsushita Electric Industrial Co., Ltd.
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- Inoue Tomoo
- Faculty of Information Sciences, Hiroshima City University
Bibliographic Information
- Other Title
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- Adaptive Decompressor for Test Application with Variable Length Coding
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Abstract
Test compression/decompression schemes using variable-length coding, e.g., Huffman coding, efficiently reduce the test application time and the size of the storage on an LSI tester. In this paper, we propose a model of an adaptive decompressor for variable-length coding and discuss its property. By using a buffer, the decompressor can operate at any input and output speed without a synchronizing feedback mechanism between an ATE and the decompressor, i.e., the proposed decompressor model can adapt to any test environment. Moreover, we propose a method for reducing the size of the buffer embedded in the decompressor. Since the buffer size depends on the order in which test vectors are input, reordering test vectors can reduce the buffer size. The proposed algorithm is based on fluctuations in buffered data for each test vector. Experimental results show a case in which the ordering algorithm reduced the size of the buffer by 97%.
Journal
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- Information and Media Technologies
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Information and Media Technologies 1 (2), 909-917, 2006
Information and Media Technologies Editorial Board
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Keywords
Details 詳細情報について
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- CRID
- 1390282680241928320
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- NII Article ID
- 130000058362
- 110004729725
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- NII Book ID
- AN00116647
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- ISSN
- 18827764
- 03875806
- 18810896
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- NDL BIB ID
- 7993176
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- Text Lang
- en
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- Data Source
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- JaLC
- IRDB
- NDL
- CiNii Articles
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- Abstract License Flag
- Disallowed