Patent ID: 7475305
Filing Date: 2009-01-06
Classification: G01R,G11C

Abstract:
1. A method to test a plurality of circuits using a multiple circuit, automatic test system comprising: initializing an automatic test system to a first circuit group comprising a plurality of circuit groups wherein each said circuit group comprises a plurality of circuits and wherein said first circuit group is considered a current circuit group; thereafter testing said current circuit group wherein said testing comprises: thereafter initializing a data strobe of said automatic test system to a strobe set point relative to a system clock cycle; thereafter partially testing, in parallel, the function of each said circuit using said strobe set point; logging a circuit yield of said circuit group from said step of partially testing at said strobe set point; thereafter updating said data strobe to a new said strobe set point; thereafter repeating said steps of testing, logging, and updating until a specified range of said strobe set points is completed; thereafter setting said data strobe for said circuit group to said strobe set point associated with the highest said circuit yield; and thereafter testing said current circuit group using said optimized data strobe; thereafter indexing said system to next said circuit group which is now considered said current group; and thereafter repeating said steps of testing said current circuit group and indexing to next said circuit group until all said circuit groups have been tested.