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An Efficient Test Relaxation Technique for Combinational Circuits Based on Critical Path Tracing

El-Maleh, Aiman H. and Al-Suwaiyan, Ali (2002) An Efficient Test Relaxation Technique for Combinational Circuits Based on Critical Path Tracing. 9th IEEE International Conference on Electronics, Circuits and Systems. pp. 461-465.

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Abstract

Reducing test data size is one of the major challenges in testing systems-on-a-chip. This can be achieved by test compaction and/or compression techniques. Having a partially specified or relaxed test set increases the effectiveness of compaction and compression techniques. In this paper, we propose a novel and efficient test relaxation technique for combinational circuits. It is based on critical path tracing and hence it may result in a reduction in the fault coverage. However, based on experimental results on ISCAS benchmark circuits, the drop in the fault coverage (if any) after relaxation is small for most of the circuits. The technique is faster than the brute-force test relaxation method by several orders of magnitude.



Item Type:Article
Date:September 2002
Date Type:Publication
Subjects:Computer
Divisions:College Of Computer Sciences and Engineering > Information and Computer Science Dept
Creators:El-Maleh, Aiman H. and Al-Suwaiyan, Ali
Email:aimane@kfupm.edu.sa, abosaleh@kfupm.edu.sa
ID Code:142
Deposited By:AIMAN HELMI EL-MALEH
Deposited On:27 Feb 2008 02:00
Last Modified:12 Apr 2011 13:06

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