Research on Test Points Selection Using Complex Field Fault Modeling in Analog Circuit

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In this paper, a new test nodes selection technique based on the complex field fault modeling of analog circuits testability is presented. The function F () by the complex field fault modeling can be used as the fault model, which is applicable to both hard (open or short) and soft (parametric) faults. Therefore, we can obtain the signature curves of the potential fault components by PSPICE and MATLAB. For the testability of fault model, fault-test dependency matrix can be concluded. With the integer-coded fault-wise table method and heuristic graph search algorithm, we can obtain a global minimum node set. The number of potential faults with complex field fault modeling is half compared with the traditional methods and the time complexity of the circuit can be reduced significantly.

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1158-1162

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October 2013

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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