Presentation 2010-11-29
A decision method of target detected pseudo primary outputs on Low-capture-swithing-activity test generation
Yang SHEN, Toshinori HOSOKAWA, Masayoshi YOSHIMURA,
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Abstract(in English) High launch switching activity in capture mode during at-speed scan testing may lead to excessive IR-drop. Excessive IR-drop causes test-induced yield loss. A test pattern set is classified to a capture-safe pattern set and a capture-unsafe pattern set. If the launch switching activity exceeds the value of threshold, the test patterns are referred to capture-safe patterns. Other patterns are referred to capture-unsafe patterns. Faults detected by only capture-unsafe patterns are defined as unsafe faults. Other faults are defined as safe faults. It is important to generate capture-safe patterns for unsafe faults to avoid test-induced yield loss due to excessive IR-drop. In this paper, test patterns to unsafe faults for analysis are generated and the launch switching activity is analyzed. The information for a pair of a safe faults and its detected pseudo primary output is used for the analysis. Experimental results for ITC'99 benchmark circuits show that 90% of the test patterns for the analysis are capture-safe when a pseudo primary output where safe faults are detected by capture-safe patterns is the same as the pseudo primary output where safe faults are detected by test patterns for the analysis.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) capture power reduction / detected pseudo primary outputs / capture-safe / broad side testing
Paper # VLD2010-62,DC2010-29
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Committee DC
Conference Date 2010/11/22(1days)
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Registration To Dependable Computing (DC)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A decision method of target detected pseudo primary outputs on Low-capture-swithing-activity test generation
Sub Title (in English)
Keyword(1) capture power reduction
Keyword(2) detected pseudo primary outputs
Keyword(3) capture-safe
Keyword(4) broad side testing
1st Author's Name Yang SHEN
1st Author's Affiliation Graduate School of Industrial Technology, Nihon University()
2nd Author's Name Toshinori HOSOKAWA
2nd Author's Affiliation College of Industrial Technology, Nihon University
3rd Author's Name Masayoshi YOSHIMURA
3rd Author's Affiliation Faculty of Engineering, Kyushu University
Date 2010-11-29
Paper # VLD2010-62,DC2010-29
Volume (vol) vol.110
Number (no) 317
Page pp.pp.-
#Pages 6
Date of Issue