KR100862301B1 - 임프린트 리소그래피를 위한 고분해능 오버레이 정렬 방법 및 시스템 - Google Patents
임프린트 리소그래피를 위한 고분해능 오버레이 정렬 방법 및 시스템 Download PDFInfo
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Abstract
Description
Claims (190)
- 기판과 패턴화된 템플릿 사이에 배치되어 있는 액체 물질을 사용하여 상기 기판을 상기 기판으로부터 이격되어 있는 상기 패턴화된 템플릿과 정렬시키는 방법으로서, 상기 기판은 기판 위에 배치된 기판 정렬 마크를 가지며, 상기 패턴화된 템플릿은 패턴화된 템플릿 위에 형성된 템플릿 정렬 마크를 가지며, 상기 방법은:상기 액체 물질이 상기 패턴화된 템플릿 및 상기 기판 모두와 접촉하여 접촉 영역을 정의하도록 상기 패턴화된 템플릿과 상기 기판 사이의 거리를 조정하는 단계; 및상기 템플릿 정렬 마크와 상기 기판 정렬 마크가 실질적으로 정렬되도록 상기 기판에 대한 상기 패턴화된 템플릿의 오버레이 배치를 변경시키는 단계;를 포함하고,상기 거리는 상기 액체 물질의 정지마찰에 기인한 상기 패턴화된 템플릿과 상기 기판 사이의 움직임에 대한 저항을 감소시키도록 상기 액체 물질에 관한 점성도에 근거하여 설정되는 것을 특징으로 하는 방법.
- 제 1 항에 있어서, 상기 거리를 조정하는 단계는,상기 템플릿 정렬 마크 및 상기 기판 정렬 마크를 상기 접촉 영역의 바깥에서 유지시키면서, 상기 패턴화된 템플릿 및 상기 기판을 상기 액체 물질과 접촉시키는 단계를 더 포함하는 것을 특징으로 하는 방법.
- 제 2 항에 있어서, 상기 오버레이 배치를 변경시키는 단계 후에, 상기 접촉 영역을 확대시켜 상기 템플릿 정렬 마크 및 상기 기판 정렬 마크 모두와 중첩되도록 하기 위해 상기 거리를 감소시키는 단계를 더 포함하는 것을 특징으로 하는 방법.
- 제 1 항에 있어서, 상기 거리를 조정하는 단계는,상기 오버레이 배치를 변경시키는 단계 이전에, 상기 템플릿 정렬 마크 및 상기 기판 정렬 마크 모두와 중첩되도록 상기 액체 물질을 접촉시키는 단계를 더 포함하는 것을 특징으로 하는 방법.
- 제 1 항 내지 제 4 항 중 어느 한 항에 있어서,상기 액체 물질의 개별적으로 분배된 영역에 다중 패턴을 기록하는 단계를 더 포함하고,상기 다중 패턴의 서브세트는 상기 액체 물질의 상이한 부분들에 위치되고, 상기 거리를 조정하는 단계와 상기 기판에 대한 상기 패턴화된 템플릿의 상기 오버레이 배치를 변경하는 단계를 상기 액체 물질의 상이한 부분들의 각각에서 반복함에 의해 상기 패턴화된 템플릿과 상기 액체 물질의 상이한 부분들의 각각 사이에 소정 정렬을 얻음으로써, 상기 템플릿 정렬 마크 및 상기 기판 정렬 마크가 실질적으로 정렬되는 것을 특징으로 하는 방법.
- 제 1 항 내지 제 4 항 중 어느 한 항에 있어서,상기 액체 물질에 다중 패턴을 기록하는 단계를 더 포함하고,상기 다중 패턴의 서브세트는 상기 액체 물질의 상이한 부분들에 위치되고, 상기 거리를 조정하는 단계와 상기 기판에 대한 상기 패턴화된 템플릿의 상기 오버레이 배치를 변경하는 단계를 상기 액체 물질의 상이한 부분들의 서브세트에서 반복함에 의해 상기 패턴화된 템플릿과 상기 액체 물질의 상이한 부분들의 각각 사이에 소정 정렬을 얻어 최초 정렬 부분들을 정의하고,상기 상이한 부분들의 나머지 부분들은 추가 서브세트를 형성하며,상기 최초 정렬 부분들로부터 측정된 상기 기판과 상기 패턴화된 템플릿 사이의 상대적 움직임의 측정치에 대한 함수로써 상기 추가 서브세트에 관련된 부분들에서 상기 패턴화된 템플릿과 상기 기판 사이의 정렬을 결정하는 것을 특징으로 하는 방법.
- 제 1 항 내지 제 4 항 중 어느 한 항에 있어서,상기 액체 물질을 실질적으로 경화시키도록 경화 광을 상기 액체 물질에 작용시키고, 경화된 물질을 정의하고, 상기 경화된 물질로부터 상기 패턴화된 템플릿을 분리시킴으로써 상기 액체 물질에 패턴을 기록하는 단계를 더 포함하는 것을 특징으로 하는 방법.
- 제 1 항 내지 제 4 항 중 어느 한 항에 있어서,상기 오버레이 배치를 변경하는 단계는, 제1 파장의 광을 상기 패턴화된 템플릿을 통과하도록 인가함으로써 상기 패턴화된 템플릿과 상기 기판 사이의 상기 정렬을 결정하는 단계; 및제2 파장의 광을 상기 패턴화된 템플릿을 통과하도록 인가하는 단계;를 더 포함하고,상기 제1 파장의 광은 분석 툴에 대하여 상기 기판 정렬 마크는 초점이 맞추어지고 상기 템플릿 정렬 마크는 초점을 벗어나도록 하고,상기 제2 파장의 광은 상기 분석 툴에 대하여 상기 템플릿 정렬 마크는 초점이 맞추어지고 상기 기판 정렬 마크는 초점을 벗어나도록 하는 것을 특징으로 하는 방법.
- 제 1 항 내지 제 4 항 중 어느 한 항에 있어서,상기 오버레이 배치를 변경하는 단계는, 분극 광 정렬 툴 및 분극 필터 시스템을 제공함으로써 상기 패턴화된 템플릿과 상기 기판 사이의 상기 정렬을 결정하는 단계를 더 포함하고,상기 분극 필터 시스템은 상기 분극 광 정렬 툴 및 상기 패턴화된 템플릿 사이에 배치되고,상기 분극 필터 시스템은 상기 기판 정렬 마크로 실질적으로 방향설정된 제1 분극 필터 및 상기 템플릿 정렬 마크로 실질적으로 방향설정된 제2 분극 필터를 포함하고, 상기 제1 분극 필터를 통과할 수 있는 상기 광의 분극은 상기 제2 분극 필터를 통과할 수 있는 상기 광의 분극과는 실질적으로 상이한 것을 특징으로 하는 방법.
- 제 1 항 내지 제 4 항 중 어느 한 항에 있어서,상기 템플릿 정렬 마크 및 상기 기판 정렬 마크에 대칭적인 기하학적 형태를 제공하는 단계를 더 포함하고,상기 오버레이 배치를 변경하는 단계는, 상기 기판과 템플릿의 정렬 마크의 중심을 판단함으로써 상기 패턴화된 템플릿과 상기 기판 사이의 상기 정렬을 결정하는 단계, 및 상기 템플릿 정렬 마크의 중심 위치를 상기 기판 정렬 마크의 중심 위치와 비교하는 단계를 더 포함하는 것을 특징으로 하는 방법.
- 제 1 항 내지 제 4 항 중 어느 한 항에 있어서,상기 오버레이 배치를 변경하는 단계는 상기 패턴화된 템플릿의 치수를 변경하는 단계를 포함하는 것을 특징으로 하는 방법.
- 제 1 항 내지 제 4 항 중 어느 한 항에 있어서,상기 오버레이 배치를 변경하는 단계는 상기 패턴화된 템플릿의 온도를 변경함으로써 상기 패턴화된 템플릿의 치수를 변경하는 단계를 포함하는 것을 특징으로 하는 방법.
- 제 1 항 내지 제 4 항 중 어느 한 항에 있어서,상기 오버레이 배치를 변경하는 단계는 상기 패턴화된 템플릿의 적어도 일부분에 압축력을 인가함으로써 상기 패턴화된 템플릿의 치수를 변경하는 단계를 포함하는 것을 특징으로 하는 방법.
- 제 1 항 내지 제 4 항 중 어느 한 항에 있어서,상기 오버레이 배치를 변경하는 단계는 상기 패턴화된 템플릿의 적어도 일부분에 연장력을 인가함으로써 상기 패턴화된 템플릿의 치수를 변경하는 단계를 포함하는 것을 특징으로 하는 방법.
- 제 1 항 내지 제 4 항 중 어느 한 항에 있어서,상기 오버레이 배치를 변경하는 단계는 상기 패턴화된 템플릿에 분석 광을 인가함으로써 상기 패턴화된 템플릿 및 상기 기판 사이의 상기 정렬을 결정하는 단계를 더 포함하고,상기 패턴화된 템플릿은 제1 물질로 구성되고, 상기 정렬 마크는 상기 패턴화된 템플릿 상에 상기 제1 물질과는 다른 제2 물질을 증착함으로써 형성되고, 상기 제1 및 제2 물질은 상기 액체 물질을 경화하는데 사용되는 활성광의 파장에 실질적으로 투명하고, 상기 제2 물질은 상기 분석광이 상기 패턴화된 템플릿에 인가될 때 실질적인 대조를 갖는 분석가능 마크를 형성하는 것을 특징으로 하는 방법.
- 제 1 항 내지 제 4 항 중 어느 한 항에 있어서,상기 액체 물질을 적용하기 전에 상기 기판상에 전사층을 형성하는 단계를 더 포함하는 것을 특징으로 하는 방법.
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Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
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| US21856800P | 2000-07-16 | 2000-07-16 | |
| US60/218,568 | 2000-07-16 | ||
| PCT/US2001/022317 WO2002008835A2 (en) | 2000-07-16 | 2001-07-16 | High-resolution overlay alignment methods and systems for imprint lithography |
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| Publication Number | Publication Date |
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| KR20030079909A KR20030079909A (ko) | 2003-10-10 |
| KR100862301B1 true KR100862301B1 (ko) | 2008-10-13 |
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| KR1020037000632A Expired - Lifetime KR100862301B1 (ko) | 2000-07-16 | 2001-07-16 | 임프린트 리소그래피를 위한 고분해능 오버레이 정렬 방법 및 시스템 |
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| US (9) | US6921615B2 (ko) |
| EP (4) | EP1303792B1 (ko) |
| JP (4) | JP4511786B2 (ko) |
| KR (1) | KR100862301B1 (ko) |
| CN (1) | CN100504598C (ko) |
| AU (1) | AU2001273491A1 (ko) |
| SG (1) | SG142150A1 (ko) |
| WO (1) | WO2002008835A2 (ko) |
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2004
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- 2004-03-22 US US10/805,916 patent/US7186483B2/en not_active Expired - Fee Related
- 2004-04-05 US US10/818,099 patent/US6986975B2/en not_active Expired - Lifetime
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2009
- 2009-12-28 JP JP2009297623A patent/JP4512168B2/ja not_active Expired - Lifetime
- 2009-12-28 JP JP2009297647A patent/JP4601712B2/ja not_active Expired - Lifetime
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5772905A (en) | 1995-11-15 | 1998-06-30 | Regents Of The University Of Minnesota | Nanoimprint lithography |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102168476B1 (ko) * | 2019-08-27 | 2020-10-21 | 한국기계연구원 | 투명스탬프 제조장치 및 제조방법, 상기 제조장치로 만들어진 투명스탬프, 상기 투명스탬프를 이용한 임프린트 리소그래피 방법 |
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