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Test application time reduction for scan based sequential circuits
The State University of New York at Buffalo March 16-March 18
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/GLSV.1995.516050Fifth Great Lakes Symposium on VLSI ( ...
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Hao Zheng, Dept. of Electr. & Comput. Eng., Wisconsin Univ., Madison, WI, USA
K.K. Saluja, Dept. of Electr. & Comput. Eng., Wisconsin Univ., Madison, WI, USA
R. Jain, Dept. of Electr. & Comput. Eng., Wisconsin Univ., Madison, WI, USA
This paper addresses the issue of reducing test application time in sequential circuits with partial scan using a single clock configuration without freezing the state of the non-scan flip-flops. Experimental results show that this technique significantly reduces test application time. Further, we study the effect of ordering the scan flip-flops on the test vector length and also present a non-atomic two-clock scan method which can be easily incorporated in conventional test generation environment.
Index Terms:
logic testing; sequential circuits; flip-flops; clocks; boundary scan testing; test application time; scan based sequential circuits; partial scan; single clock configuration; nonscan flip-flops; test vector length; nonatomic two-clock scan method; test generation environment
Citation:
Hao Zheng, K.K. Saluja, R. Jain, "Test application time reduction for scan based sequential circuits," glsvlsi, pp.188, Fifth Great Lakes Symposium on VLSI (GLSVLSI'95), 1995
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