| Summary: | 碩士 === 元智大學 === 工業工程與管理學系 === 101 === With the rising environmental awareness around the world and the greenhouse effect caused by natural disasters, the importance of the clean solar energy has gained the attention. The market of the solar energy products has gradually increased in various demands. In order to improve the company's profits, the solar plants have tried to improve the yields of existing products. The study subject was the characteristic of thickness of the solar chip. In this study, the defect ratio of customer return was evaluated. Moreover, the break-even analysis was used to find out the critical point of defect ratio and the product improvement range. The effective experimental arrangement of Taguchi methods and sensitivity analysis methods was used to improve the quality of thickness of the solar chip. The defect ratio of the thickness of solar chip has reduced from 0.83% to 0.36%, and the customer return loss has decreased by an amount of 1,785,000 dollars per year.
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