Patent ID: 6960908
Filing Date: 2005-11-01
Classification: G01R,G11C

Abstract:
1. A method comprising: loading a device under test on a test site of a handler, the handler connected to a tester through a device under test board; performing electrical tests on the device under test by operating the tester; collecting results of the electrical test for individual sockets on the device under test board using the tester; storing the electrical test results of the individual sockets on the device under test board in a storing unit of the tester and accumulating the results; transmitting a part of the collected electrical test results to the handler and processing the device under test according to the received electrical test results; comparing the accumulated electrical test results of the individual sockets on the device under test board to a reference value; using the individual sockets on the device under test board based upon the comparison results; and stopping use of a defective socket on the device under test board by transmitting the decision result to the handler.