A clustering algorithm-based control chart for inhomogeneously distributed TFT-LCD processes
- Authors
- Kang, Ji Hoon; Kim, Seoung Bum
- Issue Date
- 1-9월-2013
- Publisher
- TAYLOR & FRANCIS LTD
- Keywords
- bootstrap; clustering algorithm; Hotelling' s T-2; multivariate control chart; TFT-LCD
- Citation
- INTERNATIONAL JOURNAL OF PRODUCTION RESEARCH, v.51, no.18, pp.5644 - 5657
- Indexed
- SCIE
SCOPUS
- Journal Title
- INTERNATIONAL JOURNAL OF PRODUCTION RESEARCH
- Volume
- 51
- Number
- 18
- Start Page
- 5644
- End Page
- 5657
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/102195
- DOI
- 10.1080/00207543.2013.793427
- ISSN
- 0020-7543
- Abstract
- Statistical process control techniques have been widely used to improve processes by reducing variations and defects. In the present paper, we propose a multivariate control chart technique based on a clustering algorithm that can effectively handle a situation in which the distribution of in-control observations is inhomogeneous. A simulation study was conducted to examine the characteristics of the proposed control chart and to compare them with Hotelling's T-2 multivariate control charts that are widely used in real-world processes. Moreover, an experiment with real data from the thin film transistor liquid crystal display (TFT-LCD) manufacturing process demonstrated the effectiveness and accuracy of the proposed control chart.
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Collections - College of Engineering > School of Industrial and Management Engineering > 1. Journal Articles
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