INSPECTION SERIES GENERATION DEVICE

摘要

PURPOSE:To generate an input pattern series for detecting a failed portion in a logic circuit. CONSTITUTION:A simulation of a logic circuit 1 for detecting a failure is performed by using a circuit simulator 4. A logic value for an input pattern which is generated by an input signal generation portion 6 is obtained by using the logic simulator 4. The number of procedures for controlling a failed portion is obtained by a controllable cost deriving portion 7 and a continuous logic value of the failed portion is obtained by a continuous logic value deriving portion 8 and then a cost is obtained from these values by a cost deriving portion 9. Costs in each input pattern are compared by a minimum cost deriving portion 10, the minimum cost is obtained, and then an input pattern is selected by an input signal setting portion 11.