KR102400320B1 - 포토마스크 레이아웃, 미세 패턴 형성 방법 및 반도체 장치의 제조 방법 - Google Patents
포토마스크 레이아웃, 미세 패턴 형성 방법 및 반도체 장치의 제조 방법 Download PDFInfo
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- KR102400320B1 KR102400320B1 KR1020160025528A KR20160025528A KR102400320B1 KR 102400320 B1 KR102400320 B1 KR 102400320B1 KR 1020160025528 A KR1020160025528 A KR 1020160025528A KR 20160025528 A KR20160025528 A KR 20160025528A KR 102400320 B1 KR102400320 B1 KR 102400320B1
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Abstract
Description
도 2 내지 도 21은 예시적인 실시예들에 따른 미세 패턴 형성 방법을 설명하기 위한 평면도들 및 단면도들이다.
도 22 내지 도 24는 예시적인 실시예들에 따른 미세 패턴 형성 방법을 설명하기 위한 평면도들이다.
도 25 및 도 26은 비교예들에 따른 미세 패턴 형성 방법을 설명하기 위한 평면도들이다.
도 27 내지 도 37은 예시적인 실시예들에 따른 반도체 장치의 제조 방법을 설명하기 위한 평면도들 및 단면도들이다.
115: 제1 스페이스 120: 제2 패턴 영역
120a: 셀 패턴 영역 120b: 더미 패턴 영역
123: 라인 영역 125: 탭 영역
130, 130a, 130b: 제2 스페이스 200, 400: 기판
210: 식각 대상막 220, 500: 마스크 막
225: 마스크 패턴 230, 510: 버퍼막
240, 520: 제1 희생막 245: 제1 희생 패턴
250: 제1 스페이서 막 255: 제1 스페이서
260: 제1 개구부 270: 제2 희생막
275: 제2 희생 패턴 275a: 셀 희생 패턴
275b: 더미 희생 패턴 276: 라인 부분
277: 탭 부분 280, 282: 제2 스페이서
285: 제2 개구부 290, 360, 458a: 제1 홀 영역
292, 362, 458b: 제2 홀 영역 294, 364, 458c: 제3 홀 영역
296, 366: 제4 홀 영역 300, 370, 375: 제1 트림 패턴
310: 제2 트림 패턴 320: 제1 콘택 홀
330: 제3 콘택 홀 401: 제1 불순물 영역
402: 소자 분리막 403: 제2 불순물 영역
405: 액티브 패턴 409: 게이트 트렌치
428: 게이트 구조물 430: 제1 층간 절연막
437: 그루브 440: 제1 도전막
442: 제1 도전 패턴 445: 배리어 도전막
446: 배리어 도전 패턴 447: 제2 도전막
448: 제2 도전 패턴 450: 마스크 패턴
455: 도전라인 구조물 457: 스페이서
470: 콘택 홀 475: 도전 콘택
480: 하부 전극 485: 유전막
487: 상부 전극 490: 커패시터
Claims (20)
- 식각 대상막 상에 복수의 제1 희생 패턴들을 형성하고;
상기 제1 희생 패턴들의 측벽들 상에 제1 스페이서들을 형성하고;
상기 제1 희생 패턴들을 제거하고;
상기 제1 스페이서들과 교차하며, 각각 라인 부분 및 상기 라인 부분보다 폭이 넓은 탭 부분을 포함하는 복수의 제2 희생 패턴들을 형성하고;
상기 제2 희생 패턴들의 측벽들 상에 제2 스페이서들을 형성하고;
상기 제2 희생 패턴들을 제거하고; 그리고
상기 제1 스페이서들 및 상기 제2 스페이서들의 교차 영역들에 의해 정의되는 홀 영역들을 통해 상기 식각 대상막을 식각하는 것을 포함하는 미세 패턴 형성 방법. - 제1항에 있어서, 상기 제1 희생 패턴들은 상기 식각 대상막의 상면에 평행하며 서로 수직한 제1 방향 및 제2 방향에 대해 경사진 제3 방향으로 연장하며,
상기 제2 희생 패턴들은 상기 제2 방향으로 연장하며, 상기 제1 방향을 따라 배열되는 미세 패턴 형성 방법. - 제2항에 있어서, 상기 제1 스페이서들은 상기 제3 방향으로 연장하며, 상기 제2 스페이서들은 상기 제2 방향으로 연장하는 미세 패턴 형성 방법.
- 제2항에 있어서, 상기 탭 부분은 상기 제2 희생 패턴의 상기 제2 방향으로의 말단부에서 상기 라인 부분과 연결되는 미세 패턴 형성 방법.
- 제4항에 있어서, 상기 홀 영역들은 상기 라인 부분의 측벽 상에 형성된 상기 제2 스페이서들의 부분들 및 상기 제1 스페이서들의 교차 영역들에 의해 정의되는 제1 홀 영역들, 및 상기 탭 부분이 제거된 공간에 의해 정의되는 제2 홀 영역들을 포함하는 미세 패턴 형성 방법.
- 제5항에 있어서, 상기 제2 홀 영역들 각각의 사이즈는 상기 제1 홀 영역들 각각의 사이즈보다 큰 미세 패턴 형성 방법.
- 제5항에 있어서, 상기 제2 희생 패턴들은 셀 희생 패턴들 및 상기 셀 희생 패턴들에 대해 상기 제1 방향으로의 측부에 형성된 더미 희생 패턴을 포함하는 미세 패턴 형성 방법.
- 제7항에 있어서, 상기 더미 희생 패턴 및 상기 더미 희생 패턴과 이웃하는 상기 셀 희생 패턴 사이의 간격은 상기 셀 희생 패턴들 사이의 간격보다 큰 미세 패턴 형성 방법.
- 제8항에 있어서, 상기 홀 영역들은 상기 더미 희생 패턴 및 상기 더미 희생 패턴과 이웃하는 상기 셀 희생 패턴 사이의 공간에 형성되는 제3 홀 영역들을 더 포함하며,
상기 제3 홀 영역들 각각의 사이즈는 상기 제1 홀 영역들 각각의 사이즈보다 큰 미세 패턴 형성 방법. - 제5항에 있어서, 상기 홀 영역들은 서로 이웃하는 상기 탭 부분들 사이의 공간에 형성되는 제4 홀 영역을 더 포함하며,
상기 제4 홀 영역은 상기 제1 홀 영역들 각각의 사이즈 및 상기 제2 홀 영역들 각각의 사이즈보다 작은 미세 패턴 형성 방법. - 제1항에 있어서, 상기 제2 희생 패턴들의 상기 측벽들 상에 상기 제2 스페이서들을 형성하는 것은,
상기 제2 희생 패턴들의 표면들을 따라 연속적으로 연장되며 이웃하는 상기 탭 부분들 사이의 공간을 완전히 채우는 제2 스페이서 막을 형성하고; 그리고
상기 제2 스페이서 막을 부분적으로 제거하여 상기 제2 희생 패턴들의 상기 측벽들 상에 선택적으로 상기 제2 스페이서들을 형성하는 것을 포함하는 미세 패턴 형성 방법. - 제11항에 있어서, 상기 제2 스페이서들에 의해 이웃하는 상기 탭 부분들 사이의 상기 공간이 완전히 충진되는 미세 패턴 형성 방법.
- 셀 영역 및 더미 영역을 포함하는 기판 상에 식각 대상막을 형성하고;
상기 식각 대상막 상에 제1 더블 패터닝 공정을 통해 사선 방향으로 연장하는 복수의 제1 스페이서들을 형성하고;
제2 더블 패터닝 공정을 통해 각각 상기 제1 스페이서들과 교차하며 직선 방향으로 연장하고, 상기 더미 영역 상에서 간격의 증감이 교대로 반복되는 복수의 제2 스페이서들을 형성하고; 그리고
상기 제1 스페이서들 및 상기 제2 스페이서들 사이의 공간들을 통해 상기 식각 대상막을 식각하여 콘택 홀들을 형성하는 것을 포함하며,
상기 제2 더블 패터닝 공정은,
상기 제1 스페이서들과 교차하며 상기 직선 방향으로 연장하고, 각각 라인 부분 및 상기 라인 부분의 말단과 연결되며 상기 라인 부분보다 확장된 폭을 갖는 탭 부분을 포함하는 복수의 제2 희생 패턴들을 형성하고;
상기 제2 희생 패턴들의 측벽들 상에 상기 제2 스페이서들을 형성하고; 그리고
상기 제2 희생 패턴들을 제거하는 것을 포함하는 미세 패턴 형성 방법. - 제13항에 있어서, 상기 제1 더블 패터닝 공정은,
상기 식각 대상막 상에 상기 사선 방향으로 연장하는 복수의 제1 희생 패턴들을 형성하고;
상기 제1 희생 패턴들의 측벽들 상에 상기 제1 스페이서들을 형성하고; 그리고
상기 제1 희생 패턴들을 제거하는 것을 포함하는 미세 패턴 형성 방법. - 삭제
- 제13항에 있어서, 상기 제1 스페이서들 및 상기 제2 스페이서들 사이의 상기 공간들 중 상기 셀 영역 상의 공간들에 의해 홀 영역들이 정의되며, 상기 제1 스페이서들 및 상기 제2 스페이서들 사이의 상기 공간들 중 상기 더미 영역 상의 공간들에 의해 더미 홀 영역들 정의되고,
상기 더미 홀 영역들 각각은 상기 홀 영역들 각각보다 큰 사이즈를 갖는 미세 패턴 형성 방법. - 제16항에 있어서, 상기 더미 홀 영역들 중 적어도 일부는 상기 탭 부분이 제거된 공간에 형성되는 미세 패턴 형성 방법.
- 제16항에 있어서, 이웃하는 상기 탭 부분들 사이의 공간에 의해 기생 홀 영역이 정의되며, 상기 기생 홀 영역은 상기 홀 영역들 각각보다 작은 사이즈를 갖는 미세 패턴 형성 방법.
- 제18항에 있어서, 상기 기생 홀 영역을 블로킹하는 트림 패턴을 형성하는 것을 더 포함하는 미세 패턴 형성 방법.
- 기판 상에 소자 분리막을 형성하여 상기 기판의 상부로부터 액티브 패턴들을 형성하고;
상기 액티브 패턴들 및 상기 소자 분리막 상에 게이트 구조물들을 형성하고;
상기 게이트 구조물들과 인접한 상기 액티브 패턴들의 상부에 소스/드레인 영역들을 형성하고;
상기 액티브 패턴들 및 상기 소자 분리막 상에 상기 게이트 구조물들 및 상기 소스/드레인 영역들을 덮는 층간 절연막을 형성하고;
상기 층간 절연막 상에 복수의 제1 희생 패턴들을 형성하고;
상기 제1 희생 패턴들의 측벽들 상에 제1 스페이서들을 형성하고;
상기 제1 희생 패턴들을 제거하고;
상기 제1 스페이서들과 교차하며, 각각 라인 부분 및 상기 라인 부분보다 폭이 넓은 탭 부분을 포함하는 복수의 제2 희생 패턴들을 형성하고;
상기 제2 희생 패턴들의 측벽들 상에 제2 스페이서들을 형성하고;
상기 제2 희생 패턴들을 제거하고; 그리고
상기 제1 스페이서들 및 상기 제2 스페이서들의 교차 영역들에 의해 정의되는 홀 영역들을 통해 상기 층간 절연막을 부분적으로 제거하여 상기 소스/드레인 영역들 중 적어도 일부의 소스/드레인 영역들을 노출시키는 콘택 홀들을 형성하는 것을 포함하는 반도체 장치의 제조 방법.
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US20130157441A1 (en) * | 2011-12-19 | 2013-06-20 | Jung-Dae Han | Method for fabricating semiconductor device |
US20130264622A1 (en) | 2012-04-06 | 2013-10-10 | Shu-Cheng Lin | Semiconductor circuit structure and process of making the same |
Also Published As
Publication number | Publication date |
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CN107154345A (zh) | 2017-09-12 |
US20200083356A1 (en) | 2020-03-12 |
US10439048B2 (en) | 2019-10-08 |
CN107154345B (zh) | 2023-10-20 |
US10050129B2 (en) | 2018-08-14 |
US20170256628A1 (en) | 2017-09-07 |
KR20170103147A (ko) | 2017-09-13 |
US20180350957A1 (en) | 2018-12-06 |
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