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NTIS 바로가기마이크로전자 및 패키징 학회지 = Journal of the Microelectronics and Packaging Society, v.27 no.3, 2020년, pp.1 - 8
황승준 (서울시립대학교 신소재공학과) , 황성빈 (서울시립대학교 신소재공학과) , 정재필 (서울시립대학교 신소재공학과)
In this paper, the principles, characteristics and recent studies of the laser micro soldering are reviewed. The factors which influence laser micro welding and soldering are also included. Laser soldering is a non-contact process that transfers energy to solder joint by a precisely controlled laser...
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핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
레이저 솔더링의 장점은? | 레이저 솔더링의 장점으로는, 레이저 빔을 목표 지점에 정확히 조준 가능해 좁은 공간의 솔더링이 가능하며, 비접촉식 접합 입열량이 적어서 접합 계면에 금속간 화합물의 생성이 적고, 열응력이 적으며, 솔더의 급속 가열 및 냉각으로 입자가 미세한 조직이 형성되어 연화가 억제되는 점 등이 있다.9-11) 반면, 레이저 솔더링의 단점으로는 소재마다 레이저 빔의 흡수율 혹은 반사율이 달라서 알맞은 레이저의 선택과 정교한 레이저 빔의 조절이 요구 된다. | |
레이저 솔더링의 특징은? | 레이저 솔더링은 전자 패키징 및 상호 연결 등의 표준 제조 공정으로 시작되었다.32,33) 이 기술은 각 부품의 온도 부하, 즉 열 영향을 최소화하고 솔더링부의 위치에 대한 접근성이 제한될 때 사용하는 것이 특징이다.34,35) 레이저는 열 영향이 최소화 되기 때문에 다양하고 취약한 IMC 형상(morphology)이 불필요한 곳에 생성되는 것을 방지할 수 있다. | |
레이저 솔더링의 단점은? | 레이저 솔더링의 장점으로는, 레이저 빔을 목표 지점에 정확히 조준 가능해 좁은 공간의 솔더링이 가능하며, 비접촉식 접합 입열량이 적어서 접합 계면에 금속간 화합물의 생성이 적고, 열응력이 적으며, 솔더의 급속 가열 및 냉각으로 입자가 미세한 조직이 형성되어 연화가 억제되는 점 등이 있다.9-11) 반면, 레이저 솔더링의 단점으로는 소재마다 레이저 빔의 흡수율 혹은 반사율이 달라서 알맞은 레이저의 선택과 정교한 레이저 빔의 조절이 요구 된다.4,12) |
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