Abstract
Large test data volume and high test power are two of the major concerns for the industry when testing large integrated circuits. With given test cubes in scan-based testing, the ldquodonpsilat-carerdquo bits can be exploited for test data compression and/or test power reduction. Prior work either targets only one of these two issues or considers to reduce test data volume and scan shift power together. In this paper, we propose a novel capture power-aware test compression scheme that is able to keep scan capture power under a safe limit with little loss in test compression ratio. Experimental results on benchmark circuits demonstrate the efficacy of the proposed approach.
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