Break fault model and fault collapsing analysis for PLA's

The behavior of break faults in PLAs is analyzed and a fault collapsing technique for the faults is presented. From the behavioral analysis, two patterns are needed to detect a break fault. By the fault collapsing technique, the number of break faults is reduced from 2*( Hash device)+( Hash output) to less than 2*( Hash input+ Hash product)+( Hash output). Experimental results show that, for 56 benchmarks, the number of break faults after fault collapsing is reduced to 18.37%.<
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