A Capture-Safety Checking Metric Based on Transition-Time-Relation for At-Speed Scan Testing
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- MIYASE Kohei
- Kyushu Institute of Technology
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- SAKAI Ryota
- Kyushu Institute of Technology
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- WEN Xiaoqing
- Kyushu Institute of Technology
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- ASO Masao
- Renesas Micro Systems Co. Ltd.
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- FURUKAWA Hiroshi
- Renesas Micro Systems Co. Ltd.
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- YAMATO Yuta
- Fukuoka Industry Science Technology Foundation
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- KAJIHARA Seiji
- Kyushu Institute of Technology
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Abstract
Test power has become a critical issue, especially for low-power devices with deeply optimized functional power profiles. Particularly, excessive capture power in at-speed scan testing may cause timing failures that result in test-induced yield loss. This has made capture-safety checking mandatory for test vectors. However, previous capture-safety checking metrics suffer from inadequate accuracy since they ignore the time relations among different transitions caused by a test vector in a circuit. This paper presents a novel metric called the Transition-Time-Relation-based (TTR) metric which takes transition time relations into consideration in capture-safety checking. Detailed analysis done on an industrial circuit has demonstrated the advantages of the TTR metric. Capture-safety checking with the TTR metric greatly improves the accuracy of test vector sign-off and low-capture-power test generation.
Journal
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- IEICE Transactions on Information and Systems
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IEICE Transactions on Information and Systems E96.D (9), 2003-2011, 2013
The Institute of Electronics, Information and Communication Engineers
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Details
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- CRID
- 1390001204378169600
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- NII Article ID
- 120005895731
- 130003370989
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- NII Book ID
- AA10826272
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- ISSN
- 17451361
- 09168532
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- HANDLE
- 10228/00007525
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- Text Lang
- en
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- Data Source
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- JaLC
- IRDB
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed