Comparison of effectiveness of current ratio and delta-I-DDQ tests
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abstract
I DDQ test is a valuable test method for semiconductor manufacturers. However, its effectiveness is reduced for deep sub-micron technology chips due to rising background leakage. Current two test methods that promise to extend the life of I DDQ test are Current Ratio and Delta-I DDQ. Although several studies have been reported on these methods, their effectiveness in detecting defects has not been contrasted. In this work, we compare these two methods using industrial test data.
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17th International Conference on VLSI Design. Proceedings.