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In this paper, a method for reducing test data volume of BIST-aided scan test (BAST) is proposed. In our BAST method, scan chains are ordered using compatible flip-flops to reduce the conflicting bits between ATPG pattern and random pattern obtained by LFSR. The inverter block in BIST-aided scan architecture is modified for shifting inverter code such that the random pattern produced by LFSR has less...
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