Patent ID: 7533308
Filing Date: 2009-05-12
Classification: G11C

Abstract:
1. A semiconductor test system comprising: a test device for testing a semiconductor device including a redundant circuit and obtaining fail information of a defective part of the semiconductor device, the redundant circuit being formed in the semiconductor device in advance; and a redundant remedy judging device provided independently of the test device, and including a fail memory for storing the fail information and a redundant remedy judging unit for judging based on the fail information stored in the fail memory as to whether or not a redundant remedy of replacing the defective part of the semiconductor device with the redundant circuit can be made, the redundant circuit not becoming a component contributing an operation of the semiconductor device until the redundant remedy of replacing the defective part with the redundant circuit is made, the test device and the redundant remedy judging device being interconnected with each other via a network, the fail information being transmitted from the test device to the redundant remedy judging device, wherein the redundant remedy judging device is shared by a plurality of test devices via the network, and the semiconductor test system further comprises a redundant remedy device connected to the redundant remedy judging device via the network, for making the redundant remedy of replacing the defective part of the semiconductor device with the redundant circuit, based on redundant remedy data generated by the redundant remedy judging unit.