A Bayesian approach to degradation-based burn-in optimization for display products exhibiting two-phase degradation patterns
- Title
- A Bayesian approach to degradation-based burn-in optimization for display products exhibiting two-phase degradation patterns
- Author
- 배석주
- Keywords
- Burn-in; Degradation model; Gibbs sampling; Hierarchical Bayesian model; Reliability
- Issue Date
- 2016-07
- Publisher
- ELSEVIER SCI LTD
- Citation
- RELIABILITY ENGINEERING & SYSTEM SAFETY (2016,11), v. 155, Page. 55-63
- Abstract
- Motivated by the two-phase degradation phenomena observed in light displays (e.g., plasma display panels (PDPs), organic light emitting diodes (OLEDs)), this study proposes a new degradation-based burn-in testing plan for display products exhibiting two-phase degradation patterns. The primary focus of the burn-in test in this study is to eliminate the initial rapid degradation phase, while the major purpose of traditional burn-in tests is to detect and eliminate early failures from weak units. A hierarchical Bayesian bi-exponential model is used to capture two-phase degradation patterns of the burn-in population. Mission reliability and total cost are introduced as planning criteria. The proposed burn-in approach accounts for unit-to-unit variability within the burn-in population, and uncertainty concerning the model parameters, mainly in the hierarchical Bayesian framework. Available pre-burn-in data is conveniently incorporated into the burn-in decision-making procedure. A practical example of PDP degradation data is used to illustrate the proposed methodology. The proposed method is compared to other approaches such as the maximum likelihood method or the change-point regression. (C) 2016 Elsevier Ltd. All rights reserved.
- URI
- https://www.sciencedirect.com/science/article/pii/S0951832016301004?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/74544
- ISSN
- 0951-8320; 1879-0836
- DOI
- 10.1016/j.ress.2016.04.019
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > INDUSTRIAL ENGINEERING(산업공학과) > Articles
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