A reliable procedure for testing linear regulators with one-sided specification limits based on multiple samples

W.l. Pearn*, G. H. Lin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Process capability indices CPU and CPL are developed in the manufacturing industry to provide quantitative measures on process potential and performance, for processes with one-sided specification limits. Statistical properties of the estimators of CPU and CPL have been investigated extensively, but only restricted to cases with single samples. In this paper, we consider the estimation and capability testing of CPU and CPL based on multiple samples. We show that the proposed estimator of CPU and CPL are indeed the uniformly minimum variance unbiased estimators (UMVUEs). A simple procedure based on a hypothesis testing using the UMVUE is developed for the practitioners to use for judging whether a stable process meets the preset capability requirement.

Original languageEnglish
Pages (from-to)651-664
Number of pages14
JournalMicroelectronics Reliability
Volume43
Issue number4
DOIs
StatePublished - 1 Apr 2003

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