An economic design of double sampling (-X) chart under gamma distribution assumption
The double sampling (OS) (X) chart can reduce the sample size when monitoring the process mean. In the real industries, the process observation may follow a gamma distribution. In this study, Duncans cost model was modified to develop the design model of DS (X) chart based on gamma distribution assumption for the optimization of design parameters-sample size, control limit coefficient, warning limit coefficient and sampling interval. A numerical example of IC packaging was provided to illustrate the use of this model. A sensitivity analysis of the effects of gamma distribution parameters on the optimal design of DS (-X )chart was also performed.
double sampling (DS) (-X) chart economic design gamma distribution wirebonding process quality management
Pei-Hsi Lee Tsen-I Kuo
Department of Business Administration Chung Yuan Christian University Kinmen, Taiwan, ROC Department of Business Administration National Quemoy University
国际会议
上海
英文
131-135
2011-03-11（万方平台首次上网日期，不代表论文的发表时间）