Test width compression for built-in self testing
Test width compression for built-in self testing
复制标题
用于内置自测试的测试宽度压缩
DOI:
10.1109/test.1997.639634
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发表时间:
1997
期刊:
影响因子:
--
通讯作者:
B. Murray
中科院分区:
文献类型:
--
作者:
K. Chakrabarty;Jian Liu;Minyao Zhu;B. Murray
We present a method for designing test generator circuits (TGCs) that incorporate a precomputed test set to in the patterns they produce. Our method uses width compression based on the property of d-compatibles, which allows us to encode to more efficiently than previous methods that use only compatibles and inverse compatibles. The TGC consists of a counter, which generates a set of encoded test patterns, and a decompression circuit consisting of simple binary decoders that generate a final sequence containing T/sub D/. These TGCs are applicable to embedded-core circuits whose detailed designs are not available. We demonstrate the effectiveness of our approach by presenting experimental results for the ISCAS 85 and ISCAS CAS 89 benchmark circuits.