Patent ID: 6321353
Filing Date: 2001-11-20
Classification: G01R,G11C

Abstract:
A test system for testing semiconductor devices comprising:testing apparatus for performing at least one test of a first type on at least one semiconductor device to identify one or more types of failures in the at least one semiconductor device;processing circuitry for communicating with the testing apparatus and for determining at least one type of failure of a number of the identified types of failures, said processing circuitry providing at least one signal indicative of the at least one type of failure;decision circuitry for receiving the at least one signal indicative of the at least one type of failure of the identified number of types of failures and for considering the at least one type of failure of the number of the identified types of failures in one of designating the at least one semiconductor device for an additional procedure, designating the at least one semiconductor device for repair, and designating the at least one semiconductor device for additional tests of the first type, said decision circuitry designating the at least one semiconductor device for the additional procedure if the at least one type of failure of the number of the identified types of failures is within a first number set; anddesignating the at least one semiconductor device for repair if the number of the identified types of failures is within a second number set.