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This paper addresses the problem of testing for delay faults in sequential circuits which incorporate standard scan path design. The technique presented here aims at the reduction or elimination of enhancedscan flip-flops and their associated overhead. Flip-flop sharing modifies the order of the flip-flops in the scanpath such that adjacent flip-flops dong the path are from different sequential machines. This allows the application of arbitrary two-vector test sets necessary for delay fault testing. This arrangement is feasible for practical circuits because today's complex ICs consist, in general, of many sequential machines that may need to be delay testable.