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IEICE TRANSACTIONS on Information

Test Generation for Sequential Circuits under IDDQ Testing

Toshiyuki MAEDA, Yoshinobu HIGAMI, Kozo KINOSHITA

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Summary :

This paper presents a test generation method for sequential circuits under IDDQ testing environment and the identification of untestable faults based on the information of illegal states. We consider a short between two signal lines, a short within one gate and a short between two nodes in different gates. The proposed test generation method consists of two techniques. First technique is to use weighted random vectors, and second technique is to use test generator for stuck-at faults. By using the two techniques together, high fault coverage and short computational time can be achieved. Finally experimental results for ISCAS89 benchmark circuits are presented.

Publication
IEICE TRANSACTIONS on Information Vol.E81-D No.7 pp.689-696
Publication Date
1998/07/25
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section PAPER (Special Issue on Test and Diagnosis of VLSI)
Category
IDDQ Testing

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