KR100708491B1 - 듀얼 다마신 공정을 위한 개선된 충전 조성물을 포함하는 기판구조체, 충전조성물의 도포방법, 충전조성물의 적합성 결정방법, 및 전구체 구조체 - Google Patents
듀얼 다마신 공정을 위한 개선된 충전 조성물을 포함하는 기판구조체, 충전조성물의 도포방법, 충전조성물의 적합성 결정방법, 및 전구체 구조체 Download PDFInfo
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- KR100708491B1 KR100708491B1 KR1020027002476A KR20027002476A KR100708491B1 KR 100708491 B1 KR100708491 B1 KR 100708491B1 KR 1020027002476 A KR1020027002476 A KR 1020027002476A KR 20027002476 A KR20027002476 A KR 20027002476A KR 100708491 B1 KR100708491 B1 KR 100708491B1
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Abstract
Description
Claims (49)
- 표면을 갖는 집적회로용 기판과, 상기 기판의 표면에 인접하는 충전조성물로 조합된 기판구조체로서,상기 충전 조성물은 중합체 결합제를 포함하는 소정량의 고형 성분 및, 이러한 고형 성분을 위한 용제계를 포함하고, 예비소성 열 안정성 테스트 수행시 베이스 물질로부터 약 70% 이상 제거되며, 필름 수축율 테스트 수행시 수축율이 약 15% 미만인 것인 기판구조체.
- 제1항에 있어서, 상기 용제계의 비점은 약 160℃ 미만인 것인 기판구조체.
- 제1항에 있어서, 상기 용제계의 인화점은 약 85℃ 이상인 것인 기판구조체.
- 제1항에 있어서, 상기 중합체 결합제는 분자량이 약 80,000 미만인 것인 기판구조체.
- 제1항에 있어서, 상기 중합체 결합제는 폴리아크릴레이트를 포함하는 것인 기판구조체.
- 제1항에 있어서, 상기 용제계는 알콜, 에테르, 글리콜 에테르, 아미드, 에스테르, 케톤 및 이의 혼합물로 구성된 군에서 선택된 용제인 것인 기판구조체.
- 제6항에 있어서, 상기 용제는 PGME인 것인 기판구조체.
- 제1항에 있어서, 상기 조성물은 가교제를 포함하는 것인 기판구조체.
- 제8항에 있어서, 상기 가교제는 아미노플라스트, 에폭시드, 이소시아네이트, 아크릴 및 이의 혼합물로 구성된 군에서 선택되는 것인 기판구조체.
- 제1항에 있어서, 상기 중합체 결합제는 가교 부분을 포함하는 것인 기판구조체.
- 제8항에 있어서, 상기 조성물의 가교 온도는 약 150℃∼220℃인 것인 기판구조체.
- 제1항에 있어서, 고형 성분을 모두 혼합할 경우 융점이 약 200℃ 미만이 되는 것인 기판구조체.
- 제1항에 있어서, 상기 조성물과 베이스 물질 각각은 각각의 에칭 속도를 지니며, 조성물의 에칭 속도는 베이스 물질의 에칭 속도와 거의 동일한 것인 기판구조체.
- 제1항에 있어서, 상기 조성물은 흡광성 염료를 더 포함하는 것인 기판구조체.
- 제14항에 있어서, 상기 염료는 중합체 결합제에 결합된 것인 기판구조체.
- 제1항에 있어서, 상기 조성물은 습윤제를 더 포함하는 것인 기판구조체.
- 제16항에 있어서, 상기 습윤제는 불소화 계면활성제인 것인 기판구조체.
- 에칭 공정 동안 기판을 보호하기에 유용하며 기판에 형성되고, 바닥 및 측벽을 갖는 콘택트 홀 또는 비아 홀에 충전 조성물을 도포하는 방법으로서,제1항에 의한 소정량의 충전 조성물을 제공하는 단계; 및상기 바닥 및 측벽의 적어도 일부분에 상기 조성물을 도포하는 단계를, 포함하는 것인 도포 방법,
- 제18항에 있어서, 상기 조성물은 가교 온도에서 가교 가능하며, 적어도 일부분의 조성물이 콘택트 홀 또는 비아 홀로 유동되도록 상기 조성물을 재유동 온도로 가열시키는 단계를 더 포함하며, 상기 재유동 온도는 조성물의 가교 온도보다 낮은 것인 방법.
- 제19항에 있어서, 상기 가열 단계는 조성물을 약 120℃ 미만의 온도로 가열시키는 것을 포함하는 것인 방법.
- 제19항에 있어서, 상기 재유동 가열 단계 후 적어도 약 가교 온도로 조성물을 가열하여 조성물을 경화시키는 단계를 더 포함하는 것인 방법.
- 제21항에 있어서, 상기 홀은 깊이를 지니며, 콘택트 홀 또는 비아 홀내의 경화된 충전 조성물의 높이는 홀의 깊이의 약 50% 이상인 것인 방법.
- 제21항에 있어서, 상기 홀은 깊이를 지니며, 경화된 충전 조성물의 메니스커스 높이는 콘택트 홀 또는 비아 홀의 깊이의 약 10% 미만인 것인 방법.
- 제21항에 있어서, 상기 홀은 직경을 지니는 동시에, 개구를 구획하는 상부 원주 에지를 포함하며, 상기 기판은 상기 원주 에지에 이웃한 표면을 나타내며, 상기 도포 단계는 필름을 형성하기 위하여 상기 소정량의 조성물을 상기 기판 표면과 접촉시키는 것을 포함하며, 상기 필름은 홀의 직경에 거의 상응하는 원주 에지로부터의 거리에서의 두께(T)를 갖고 홀의 에지에 이웃한 두께(t)를 가지며, 경화 단계 후, t는 T의 약 40% 이상인 것인 방법.
- 제18항에 있어서, 상기 도포 단계는 기판의 표면에 그리고, 콘택트 홀 또는 비아 홀의 바닥 또는 측벽에 상기 조성물을 스핀 코팅하는 것을 포함하는 것인 방법.
- 제18항에 있어서, 상기 용제계는 인화점이 약 85℃ 이상인 것인 방법.
- 제18항에 있어서, 상기 중합체 결합제는 분자량이 약 80,000 미만인 것인 방법.
- 제18항에 있어서, 상기 중합체 결합제는 폴리아크릴레이트를 포함하는 것인 방법.
- 제18항에 있어서, 상기 용제계는 알콜, 에테르, 글리콜 에테르, 아미드, 에스테르, 케톤 및 이의 혼합물로 구성된 군에서 선택되는 용제를 포함하는 것인 방법.
- 제29항에 있어서, 상기 용제는 PGME인 것인 방법.
- 제18항에 있어서, 상기 조성물은 가교제를 더 포함하는 것인 방법.
- 제18항에 있어서, 상기 중합체 결합제는 가교 부분을 포함하는 것인 방법.
- 제31항에 있어서, 상기 조성물의 가교 온도는 약 150℃∼220℃인 것인 방법.
- 제18항에 있어서, 고형 성분을 함께 혼합할 경우 융점이 약 200℃ 미만인 것인 방법.
- 제18항에 있어서, 상기 조성물 및 상기 기판 각각은 각각의 에칭 속도를 지니며, 조성물의 에칭 속도는 베이스 물질의 에칭 속도에 거의 상응하는 것인 방법.
- 에칭 공정 동안 베이스 물질내에 형성된 콘택트 홀 또는 비아 홀을 보호하기에 충전 조성물이 적합한지를 결정하는 적합성 결정 방법으로서,중합체 결합제를 포함하는 소정량의 고형 성분 및, 고형 성분을 위한 용제계를 포함하는 주체 조성물을 제공하는 단계,예비소성 열 안정성 테스트 수행 동안 상기 베이스 물질로부터 제거된 조성물의 함량을 측정하기 위하여 조성물의 예비소성 열 안정성 테스트를 수행하는 단계, 및필름 수축율 테스트 수행 동안 조성물의 수축량을 측정하기 위하여 조성물의 필름 수축율 테스트를 수행하는 단계를 포함하는 것인 적합성 결정 방법.
- 바닥벽 및 측벽에 의해 구획되고 그 내부에 형성된 일정 깊이의 홀을 포함하는 유전체 물질; 및메니스커스를 지니며, 메니스커스의 높이(M)는 홀 깊이의 약 15% 미만이고, 바닥벽 및 측벽의 적어도 일부의 표면과 접촉하는 홀 중의 소정량의 경화된 유기 충전 조성물을 포함하는, 듀얼 다마신(dual damascence) 패턴 형성 공정의 경로 중에 형성된 전구체 구조체.
- 제37항에 있어서, 상기 홀은 개구를 구획하는 상부 원주 에지 및 직경을 지니며, 상지 유전체 물질은 원주 에지에 이웃하는 표면을 나타내며, 여기서 적어도 일부의 충전 조성물은 필름의 형태로 상기 유전체 물질 표면에 도포되고, 상기 필름은 홀의 직경에 거의 상응하는 원주 에지로부터의 거리에서의 두께(T) 및, 홀의 에지에 이웃한 두께(t)를 가지며, t는 T의 약 40% 이상인 것인 전구체 구조체.
- 제37항에 있어서, 상기 조성물은 홀 깊이의 약 50% 이상을 충전하는 것인 전구체 구조체.
- 제39항에 있어서, 상기 조성물은 홀 깊이의 약 95% 이상을 충전하는 것인 전구체 구조체.
- 제38항에 있어서, 상기 조성물은 홀 깊이의 약 50% 이상을 충전하는 것인 전구체 구조체.
- 제41항에 있어서, 상기 조성물은 홀 깊이의 약 95% 이상을 충전하는 것인 전구체 구조체.
- 제37항에 있어서, 적어도 일부분의 경화된 충전 조성물에 도포된 반사 방지층을 더 포함하는 것인 전구체 구조체.
- 개구를 구획하는 상부 원주 에지를 포함하는 측벽 및 바닥벽에 의해 구획되고 직경을 갖는 홀이 그 내부에 형성되어 있으며, 상기 원주 에지에 이웃한 표면을 나타내는 유전체 물질 및,홀의 직경에 거의 상응하는 원주 에지로부터의 거리에서의 두께(T) 및, 홀의 에지에 이웃한 두께(t)를 가지며, t는 T의 약 40% 이상인 필름 형태의 유전체 물질의 표면상에 그리고, 바닥벽과 측벽의 적어도 일부분의 표면과 접촉하며, 홀 내부에 존재하는 소정량의 경화된 유기 충전 조성물을 포함하는, 듀얼 다마신 패턴 형성 공정의 경로 중에 형성된 전구체 구조체.
- 제44항에 있어서, 상기 조성물은 홀 깊이의 약 50% 이상을 충전하는 것인 전구체 구조체.
- 제45항에 있어서, 상기 조성물은 홀 깊이의 약 95% 이상을 충전하는 것인 전구체 구조체.
- 제44항에 있어서, 상기 충전 조성물의 적어도 일부분에 도포된 반사 방지층을 더 포함하는 것인 전구체 구조체.
- 제1항에 있어서, 상기 집적회로용 기판의 물질은 실리콘 및 GaAs 중에서 선택되는 것인 기판구조체.
- 제1항에 있어서, 상기 집적회로용 기판은 콘택트 홀 또는 비아 홀을 포함하고, 상기 콘택트 홀 또는 비아 홀은 바닥 벽 및 측벽을 가지며, 상기 충전 조성물은 적어도 상기 바닥벽 및 측벽의 일부분에 배치되는 것인 기판구조체.
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