KR102582668B1 - 집적회로 소자의 제조 방법 - Google Patents
집적회로 소자의 제조 방법 Download PDFInfo
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- KR102582668B1 KR102582668B1 KR1020180117108A KR20180117108A KR102582668B1 KR 102582668 B1 KR102582668 B1 KR 102582668B1 KR 1020180117108 A KR1020180117108 A KR 1020180117108A KR 20180117108 A KR20180117108 A KR 20180117108A KR 102582668 B1 KR102582668 B1 KR 102582668B1
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Abstract
Description
도 13 내지 도 16은 본 발명의 기술적 사상에 의한 다른 실시예들에 따른 집적회로 소자의 제조 방법을 설명하기 위하여 공정 순서에 따라 도시한 도면들로서, 도 13 내지 도 15에서 각각 (a)는 집적회로 소자의 제조 공정 순서에 따라 도시한 부분 사시도이고, (b)는 (a)의 B - B' 선 단면도이고, 도 16은 도 13 내지 도 15의 (a)의 B - B' 선 단면에 대응하는 부분의 단면도이다.
도 17은 본 발명의 기술적 사상에 의한 실시예들에 따른 집적회로 소자의 제조 방법에 따라 구현 가능한 집적회로 소자의 셀 어레이 영역의 주요 구성들을 설명하기 위한 개략적인 평면 레이아웃이다.
도 18a 내지 도 18k는 도 17에 예시한 집적회로 소자를 형성하는 방법을 설명하기 위하여 공정 순서에 따라 도시한 단면도들이다.
도 19a 내지 도 19c는 도 17에 예시한 집적회로 소자를 형성하는 다른 방법을 설명하기 위하여 공정 순서에 따라 도시한 단면도들이다.
도 20a 내지 도 20e는 본 발명의 기술적 사상에 의한 또 다른 실시예들에 따른 집적회로 소자의 제조 방법을 설명하기 위하여 공정 순서에 따라 도시한 단면도들이다.
Claims (10)
- 기판의 주면 위에 몰드층을 형성하는 단계와,
상기 몰드층의 일부를 식각하여 상기 몰드층에 상기 주면과 평행한 평면에 대하여 제1 경사각을 가지는 제1 내벽을 가지는 제1 홀을 형성하는 단계와,
상기 제1 홀 내에 제1 도전 패턴을 형성하는 단계와,
상기 몰드층 및 상기 제1 도전 패턴 중 상기 몰드층의 표면에만 선택적으로 브러쉬 라이너를 형성하는 단계와,
상기 몰드층 및 상기 제1 도전 패턴 위에 블록 코폴리머층을 형성하는 단계와,
상기 블록 코폴리머층을 상분리하여 상기 제1 도전 패턴을 덮는 제1 도메인과, 상기 몰드층을 덮는 제2 도메인을 가지는 자기조립층을 형성하는 단계와,
상기 자기조립층으로부터 상기 제1 도메인을 제거하여 상기 제1 홀과 연통되고 상기 주면과 평행한 평면에 대하여 상기 제1 경사각과 다른 제2 경사각을 가지는 제2 내벽을 가지는 제2 홀을 형성하는 단계와,
상기 제2 홀 내에 상기 제1 도전 패턴에 접하는 제2 도전 패턴을 형성하는 단계를 포함하는 집적회로 소자의 제조 방법. - 제1항에 있어서,
상기 블록 코폴리머층은 유기 폴리머와 무기 폴리머와의 공중합체를 포함하는 집적회로 소자의 제조 방법. - 제2항에 있어서,
상기 제2 홀을 형성하는 단계 후, 상기 제2 도전 패턴을 형성하는 단계 전에, 상기 제2 도메인을 무기 산화물층으로 변환하는 단계와,
상기 제2 도전 패턴을 형성하는 단계 후, 상기 몰드층 및 상기 제2 도메인을 동시에 제거하여 상기 제1 도전 패턴의 외측벽 및 상기 제2 도전 패턴의 외측벽을 노출시키는 단계를 더 포함하는 집적회로 소자의 제조 방법. - 제1항에 있어서,
상기 제2 도전 패턴을 형성하기 전에, 상기 제2 홀의 상기 제2 내벽을 덮는 보호 스페이서를 형성하는 단계를 더 포함하고,
상기 제2 도전 패턴을 형성하는 단계에서 상기 제2 도전 패턴은 수평 방향에서 상기 제1 도전 패턴의 최대 폭보다 더 작은 폭을 가지도록 형성되는 집적회로 소자의 제조 방법. - 삭제
- 기판 위에 몰드층을 형성하는 단계와,
상기 몰드층의 일부를 식각하여 상기 몰드층에 복수의 제1 홀을 형성하는 단계와,
상기 복수의 제1 홀 내에 복수의 제1 도전 패턴을 형성하는 단계와,
상기 복수의 제1 도전 패턴 위에 상기 복수의 제1 도전 패턴에 연결되는 적어도 하나의 상부 도전 패턴을 형성하는 단계를 포함하고,
상기 적어도 하나의 상부 도전 패턴을 형성하는 단계는
유기 폴리머와 무기 폴리머의 공중합체를 포함하는 블록 공중합체를 이용하여, 상기 복수의 제1 도전 패턴을 덮으며 상기 유기 폴리머를 포함하는 복수의 제1 도메인과, 상기 복수의 제1 도메인을 포위하며 상기 몰드층을 덮고 상기 무기 폴리머를 포함하는 제2 도메인을 가지는 자기조립층을 형성하는 단계와,
상기 복수의 제1 도메인을 제거하여 상기 복수의 제1 홀과 연통되는 복수의 제2 홀을 형성하는 단계와,
상기 제2 도메인을 무기 산화물층으로 변환하는 단계와,
상기 복수의 제2 홀 각각의 내부에 도전 물질을 채우는 단계와,
상기 몰드층 및 상기 무기 산화물층을 동시에 제거하는 단계를 적어도 1 회 수행하는 단계를 포함하는 집적회로 소자의 제조 방법. - 삭제
- 삭제
- 기판 위에 몰드층을 형성하는 단계와,
상기 몰드층의 일부를 식각하여 상기 몰드층에 복수의 제1 홀을 형성하는 단계와,
상기 복수의 제1 홀 내에 복수의 제1 도전 패턴을 형성하는 단계와,
블록 공중합체를 이용하여, 상기 복수의 제1 도전 패턴 위에 자기조립된 복수의 제1 도메인과 상기 몰드층 위에 자기조립된 제2 도메인을 포함하는 자기조립층을 형성하는 단계와,
상기 복수의 제1 도메인을 제거하여 상기 복수의 제1 도전 패턴을 노출시키는 복수의 제2 홀을 형성하는 단계와,
상기 제2 도메인을 무기 산화물층으로 변환하는 단계와,
상기 복수의 제2 홀 내에 상기 복수의 제1 도전 패턴에 연결되는 복수의 제2 도전 패턴을 형성하는 단계와,
상기 무기 산화물층 및 상기 몰드층을 제거하는 단계를 포함하는 집적회로 소자의 제조 방법. - 제9항에 있어서,
상기 복수의 제2 도전 패턴을 형성하는 단계 후, 상기 무기 산화물층을 일부 제거하여 상기 복수의 제2 도전 패턴의 외측벽을 노출시키는 지지 공간을 형성하는 단계와,
상기 지지 공간에 복수의 개구를 가지는 지지 패턴을 형성하는 단계를 더 포함하고,
상기 무기 산화물층 및 상기 몰드층을 제거하는 단계는 상기 복수의 개구를 통해 상기 무기 산화물층 및 상기 몰드층을 제거하는 단계를 포함하는 집적회로 소자의 제조 방법.
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| US16/385,386 US11018020B2 (en) | 2018-10-01 | 2019-04-16 | Method of fabricating an integrated circuit device by using a block copolymer to form a self-assembly layer |
| CN201910433769.5A CN110970558B (zh) | 2018-10-01 | 2019-05-23 | 制造集成电路器件的方法 |
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