vijay82
Member level 2
Why is LBIST test coverage low compared to deterministic pattern-based ATPG despite the fact that the most commonly used PRPGs are maximal length LFSRs and thus generate all 2^n possible (bar one) input combinations for an n-input combinational circuit?
Ultimately, ATPG patterns, though limited in number, will still be part of the universe of 2^n total possible patterns generated by a PRPG.
(Yes, I know about random-pattern resistant faults but that is beside the point given the 1st-level reasoning above doesn't pass muster).
Ultimately, ATPG patterns, though limited in number, will still be part of the universe of 2^n total possible patterns generated by a PRPG.
(Yes, I know about random-pattern resistant faults but that is beside the point given the 1st-level reasoning above doesn't pass muster).