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The BACK algorithm for sequential test generation

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1 Author(s)
W. -T. Cheng ; AT&T Eng. Res. Center, Princeton, NJ, USA

A test-generation algorithm called the BACK algorithm is proposed for sequential test generation. The BACK algorithm is a modified D-algorithm. Instead of forward fault propagation to generate sensitized paths, the BACK algorithm creates the sensitized paths backwards by justifying the required sensitized values. The BACK algorithm not only is easier to implement but also requires less run-time memory than the D-algorithm. A testability measurement which guides the justification of sensitized values is also presented. The BACK algorithm has been implemented and used very successfully for AT&T sequential circuits

Published in:

Computer Design: VLSI in Computers and Processors, 1988. ICCD '88., Proceedings of the 1988 IEEE International Conference on

Date of Conference:

3-5 Oct 1988