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On Comparison of NCR Effectiveness with a Reduced I{DDQ} Vector Set
Napa Valley, California April 25-April 29
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/VTEST.2004.129922722nd IEEE VLSI Test Symposium
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Sagar Sabade, Texas A&M University, College Station
D. M. H. Walker, Texas A&M University, College Station
I{DDQ} test-based outlier rejection becomes difficult for deep sub-micron technology chips due to increased leakage and process variations. The use of Neighbor Current Ratio (NCR) that uses wafer-level spatial correlation for identifying outlier chips has been proposed earlier as a means of coping with these issues. Due to the slow speed of I{DDQ} test, there is a strong motivation to reduce the number of test vectors without compromising the fault coverage. In this paper, we examine the effectiveness of Neighbor Current Ratio using a reduced I{DDQ} vector set and industrial test data.
Citation:
Sagar Sabade, D. M. H. Walker, "On Comparison of NCR Effectiveness with a Reduced I{DDQ} Vector Set," vts, pp.65, 22nd IEEE VLSI Test Symposium, 2004
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