Fault detection in CMOS circuits by consumption measurement |
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Authors: | Jacomino M Rainard J-L David R |
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Affiliation: | Lab. d'Autom. de Grenoble, Saint-Martin d'Heres ; |
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Abstract: | Some testing problems in CMOS circuits are presented, including stuck-open and stuck-on faults, bridging faults, and excessive leakage in dynamic CMOS circuits. It is shown that the current consumption of a faulty CMOS circuit is several orders of magnitude greater than that of the fault-free circuit: hence, consumption measurement may be a suitable way of testing. Test by consumption measurement provides improved controllability and observability of some faults in comparison with the logic test |
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