US Patent 7689876 Real-time optimized testing of semiconductor device

A method and system for testing a semiconductor device is disclosed. The method provides an integrated test program defined by a plurality of test items, and a test program defined by a sub-set of the test items. Test data is derived by batch sample testing of the semiconductor device, and an error rate for a test item is computed and then compared to a reference data value. On the basis of the comparison between the error rate and the reference data value, the test program may be modified in real-time.