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A Novel ATPG Method for Capture Power Reduction during Scan Testing

Xiaoqing WEN, Seiji KAJIHARA, Kohei MIYASE, Tatsuya SUZUKI, Kewal K. SALUJA, Laung-Terng WANG, Kozo KINOSHITA

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Summary :

High power dissipation can occur when the response to a test vector is captured by flip-flops in scan testing, resulting in excessive IR drop, which may cause significant capture-induced yield loss in the DSM era. This paper addresses this serious problem with a novel test generation method, featuring a unique algorithm that deterministically generates test cubes not only for fault detection but also for capture power reduction. Compared with previous methods that passively conduct X-filling for unspecified bits in test cubes generated only for fault detection, the new method achieves more capture power reduction with less test set inflation. Experimental results show its effectiveness.

Publication
IEICE TRANSACTIONS on Information Vol.E90-D No.9 pp.1398-1405
Publication Date
2007/09/01
Publicized
Online ISSN
1745-1361
DOI
10.1093/ietisy/e90-d.9.1398
Type of Manuscript
PAPER
Category
Dependable Computing

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