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International Test Conference 2002 (ITC'02)
Screening MinVDD Outliers Using Feed-Forward Voltage Testing
Baltimore, MD, USA
October 07-October 10
ISBN: 0-7803-7543-2
R. Madge, LSI Logic Corporation
B.H. Goh, LSI Logic Corporation
V. Rajagopalan, LSI Logic Corporation
C. Macchietto, LSI Logic Corporation
R. Daasch, Portland State University
C. Schuermyer, Portland State University
C. Taylor, Portland State University
D. Turner, Portland State University
MinVDD testing using full vector set search routines consume too much test time.A 3-step process is proposed using (1) a reduced vector set (RVS) binary search to measure the intrinsic (defect free) MinVDD fora die, (2) a feed-forward to the full vector set (FVS) for Low Voltage testing and (3) Delta VDD and Nearest Neighbor Residual Statistical Post-Processing (SPP) are applied to the data to screen the MinVDD outliers that are identified using the RVS binary search.RVS vs.FVS correlation data is shown on 3 products. Data shows minVDD yield fall out of 0.2-0.8% and 20% of the minVDD outliers shows significant VDD shifts in burn-in.
Citation:
R. Madge, B.H. Goh, V. Rajagopalan, C. Macchietto, R. Daasch, C. Schuermyer, C. Taylor, D. Turner, "Screening MinVDD Outliers Using Feed-Forward Voltage Testing," itc, pp.673, International Test Conference 2002 (ITC'02), 2002
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