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Articles
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QICID: 20408
Title: A Control Scheme for High-Yield Correlated Production Under Group Inspection
Copyright: 2006, ASQ
Author: Tang, Loon-Ching; Cheong, Wee-Tat
Organization: National University of Singapore, Kent Ridge, Singapore
Subject: Average time to signal,C chart (count chart),Correlation,Sample size,Sampling plans;
Series: Journal of Quality Technology, Vol. 38, No. 1, January 2006, pp. 45-55
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Abstract: [This abstract is based on the authors' abstract.]A control scheme is proposed to detect changes in fraction nonconforming for high-yield processes with correlation within each inspection group. The average run length (ARL) and average time to signal (ATS) are determined using a Markov model. Performance of the proposed scheme in terms of ATS is presented along with a comparison with the traditional cumulative conformance count chart. The effects of correlation and group size are also investigated.
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