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Scan-Chain Intra-Cell Aware Testing
DOI:10.1109/TETC.2016.2624311.png)
摘要
En 中文
This paper first presents an evaluation of the effectiveness of different test pattern sets in terms of ability to detect possible infra-cell defects affecting the scan flip-flops. The analysis is then used to develop an effective test solution to improve the overall test quality. As a major result, the paper demonstrates that by combining test vectors generated by a commercial ATPG to detect stuck-at and delay faults, plus a fragment of extra test patterns generated to specifically target the escaped defects, we can obtain a higher intra-cell defect coverage (i.e., 6.46 percent on average) and a shorter test time (i.e., 42.20 percent on average) than by straightforwardly using an ATPG which directly targets these defects.
Keyword:
Fault simulation
intra-cell defect
scan-chain testing
test quality
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