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자료유형
학술저널
저자정보
조원석 (한국생산기술연구원) 이상직 (한국생산기술연구원) 김형재 (한국생산기술연구원) 이태경 (한국생산기술연구원) 이성범 (인제대학교)
저널정보
한국트라이볼로지학회 Tribology and Lubricants 윤활학회지 제32권 제2호
발행연도
2016.4
수록면
56 - 60 (5page)

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이 논문의 연구 히스토리 (3)

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Sapphire has a high hardness and strength and chemical stability as a superior material. It is used mainly as a material for a semiconductor as well as LED. Recently, the cover glass industry used by a sapphire is getting a lot of attention. The sapphire substrate is manufactured through ingot sawing, lapping, diamond mechanical polishing (DMP) and chemical mechanical polishing (CMP) process. DMP is an important process to ensure the surface quality of several nm for CMP process as well as to determine the final form accuracy of the substrate. In DMP process, the material removal is achieved by using the mechanical energy of the relative motion to each other in the state that the diamond slurry is disposed between the sapphire substrate and the polishing platen. The polishing platen is one of the most important factors that determine the material removal characteristics in DMP. Especially, it is known that the geometric characteristics of the polishing platen affects the material removal amount and its distribution. This paper investigated the material removal characteristics and the effects of the polishing platen groove in sapphire DMP. The experiments were preliminarily carried out to evaluate the sapphire material removal characteristics according to process parameters such as pressure, relative velocity and so on. In the experiment, the monitoring apparatus was applied to analyze process phenomena in accordance with the processing conditions. From the experimental results, the correlation was analyzed among process parameters, polishing phenomena and the material removal characteristics. The material removal equation based on phenomenological factors could be derived. And the experiment was followed to investigate the effects of platen groove on material removal characteristics.

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Abstract
1. 서론
2. 공정변수가 DMP 공정에 미치는 영향
3. 정반의 피치 변화가 DMP공정에 미치는 영향
4. 결론
References

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UCI(KEPA) : I410-ECN-0101-2016-551-002904231