A statistical model for delay-fault testing

The authors propose a statistical model for measuring delay-fault coverage. The model provides a figure of merit for delay testing in the same way that fault coverage provides one for the testing of single stuck-at faults. The mode measures test effectiveness in terms of the propagation delay of the path to be tested, the size of the delay defect, and the system clock interval, and then combines the data for all delay faults to measure total delay-fault coverage. The authors also propose a model for measuring the defect level as a function of the manufacturing yield and the predictions of the statistical delay-fault coverage model.<<ETX>>

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