리소그래피 공정은 반도체 공정에 있어서 그 선폭과 집적도를 결정짓는 핵심 공정이다 이러한 리소그래피 공정 중 만들고자 하는 패턴을 사진전사에 의해서 형성해주는 도구인 노광장비는 광학계, 스테이지계, 제어계로 구성되는 데, 여기에서는 이 중에서 광학계를 중심으로 노광장비를 설명한다. 노광장비의 기본적인 형태는 그 사용되는 광학계에 파라서 결정되는데, 크게 나누어서 밀착 노광 방식과 투영 노광 방식이 있다. (중략)
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