- 피코초 펄스 레이저를 이용한 사파이어 웨이퍼 스크라이빙에 관한 연구
- A Study on Sapphire Wafer Scribing Using Picosecond Pulse laser
- ㆍ 저자명
- 문재원,김도훈,Moon. Jae-Won,Kim. To-Hoon
- ㆍ 간행물명
- 한국레이저가공학회지
- ㆍ 권/호정보
- 2005년|8권 2호|pp.7-12 (6 pages)
- ㆍ 발행정보
- 한국레이저가공학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
The material processing of UV nanosecond pulse laser cannot be avoided the material shape change and contamination caused by interaction of base material and laser beam. Nowadays, ultra short pulse laser shorter than nanosecond pulse duration is used to overcome this problem. The advantages of this laser are no heat transfer, no splashing material, no left material to the adjacent material. Because of these characteristics, it is so suitable for micro material processing. The processing of sapphire wafer was done by UV 355nm, green 532nm, IR 1064nm. X-Y motorized stage is installed to investigate the proper laser beam irradiation speed and cycles. Also, laser beam fluence and peak power are calculated.