This essay talks about research of robust design for quality improvement of production procedure of Wet Etchant. It suggested the optimum design method in consideration of specific capability value that is the way to maximize the quality of product in the production system by using Daguchi parameter design method while finding factors affecting product quality with analysis of production system of product A from producer D. Also, it set long term of 6months as noise factor and let it to be the robust design that can find the optimum condition of control factor that is dull to the changes of each month, that is the change in noise factor. The control factor which affects the product quality is decided as combination method, temperature of raw material, combination time and as there are too many possibilities for combination methods, we performed 4 methods first based on previous research data then derived three ways with product that passed SPEC and set as the factor. As a result of application of optimum production procedure suggested in this essay to the actual production process with its standardization, there was a effect of drop of more than 10particles in comparison to the particle number of previous product and also it brought the effect that resulted the stable number of particle of under 30 that is what the client company suggested.
목차
Abstract 1. 서론 2. 이론적 고찰 2.1 다구찌 기법의 개요 2.2 손실함수 2.3 신호대 잡음비 3. 식각액 제조공정 설계 3.1. 식각액의 기능 3.2 식각액 제조 공정상의 문제점 3.3 식각액의 기능 4. 실험결과 4.1 실험 측정 데이터 4.2 분석결과 4.3 제품의 Particle 개수에 대한 유의 인지들의 최적수준 5. 결론 5.1 연구결과 5.2 연구의 한계 및 향후 연구방향 6. 참고문헌