KR102325201B1 - 반도체 소자의 제조 방법 - Google Patents
반도체 소자의 제조 방법 Download PDFInfo
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- KR102325201B1 KR102325201B1 KR1020150056843A KR20150056843A KR102325201B1 KR 102325201 B1 KR102325201 B1 KR 102325201B1 KR 1020150056843 A KR1020150056843 A KR 1020150056843A KR 20150056843 A KR20150056843 A KR 20150056843A KR 102325201 B1 KR102325201 B1 KR 102325201B1
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Abstract
Description
도 1c 및 도 9c는 본 발명의 일 실시예에 따른 반도체 소자의 제조 방법을 나타내는 단면도 및 평면도이다.
도 1a 및 도 9d는 본 발명의 일 실시예에 따른 반도체 소자의 제조 방법을 나타내는 단면도 및 평면도이다.
도 10a 및 11a는 본 발명의 일 실시예에 따른 반도체 소자의 제조 방법을 나타내는 단면도들이고, 도 10b 및 11b는 상기 반도체 소자의 제조 방법을 나타내는 평면도들이다.
도 12a, 13a, 14a, 15a 및 16a는 본 발명의 일 실시예에 따른 반도체 소자의 제조 방법을 나타내는 단면도들이고, 도 12b, 13b, 14b, 15b 및 16b는 상기 반도체 소자의 제조 방법을 나타내는 평면도들이다.
도 17a 내지 도 22a 본 발명의 일 실시예에 따른 반도체 소자의 제조 방법을 나타내는 단면도들이고, 도 17b 내지 도 22b는 상기 반도체 소자의 제조 방법을 나타내는 평면도들이다.
도 17c는 본 발명의 일 실시예에 따른 반도체 소자의 제조 방법을 나타내는 평면도이다.
도 17d는 본 발명의 일 실시예에 따른 반도체 소자의 제조 방법을 나타내는 평면도이다.
도 23 내지 도 34은 본 발명의 일 실시예에 따른 반도체 소자의 제조 방법을 설명하기 위한 평면도 및 단면도들이다.
104a, 104b, 105, 136 : 제1 마스크
106 : 제1 식각 저지막
108a : 제2 마스크막 110, 202 : 제2 식각 저지막
114 :포토레지스트 패턴 112 : 실리콘 산화막
100 : 기판 102 : 하부막
104 : 제1 마스크막 106 : 제1 식각 저지막
108 : 제2 마스크막 110, 202 : 제2 식각 저지막
111 : 제2 마스크 구조물 112 : 실리콘 산화막
113 : 제1 요부 116a, 132 : 코팅막 패턴
118a : 제3 마스크 120 : 제3 마스크 구조물
Claims (10)
- 기판 상에 제1 마스크막을 형성하고;
상기 제1 마스크막 상에, 연속적으로 배치되는 다각형의 각 꼭지점 부위에 배치되는 필러 형상의 제2 마스크를 형성하고;
상기 다각형의 중심 부위에 고립된 제1 요부가 생성되도록 상기 제2 마스크의 측벽 및 기판 상에 컨포멀하게 실리콘 산화막을 형성하고;
상기 제1 요부의 절곡된 측벽 부위가 라운드 되도록, 상기 실리콘 산화막의 제1 요부 측벽 상에 실리콘을 포함하는 물질을 코팅하여, 제2 요부 및 코팅막 패턴을 형성하고;
상기 제2 요부 내부를 채우는 제3 마스크를 형성하고;
상기 실리콘 산화막을 이방성으로 식각하여 실리콘 산화막 패턴, 코팅막 패턴 및 제3 마스크가 적층된 제3 마스크 구조물을 형성하고; 그리고
상기 제2 마스크 및 제3 마스크 구조물을 식각 마스크로 이용하여 상기 제1 마스크막을 식각하여 제1 마스크를 형성하는 것을 포함하는 반도체 소자의 제조 방법. - 제1항에 있어서, 상기 코팅막 패턴을 형성하는 것은,
실리콘을 포함하는 물질을 스핀 코팅하여 코팅막을 형성하고;
상기 코팅막을 베이크하여 상기 실리콘을 포함하는 물질을 열적 플로우시켜 상기 실리콘 산화막의 제1 요부의 측벽에 코팅막을 접착시켜 상기 코팅막 패턴을 형성하는 것을 포함하는 반도체 소자의 제조 방법. - 제2항에 있어서, 상기 코팅막 패턴은 100 내지 200도의 유리 전이온도를 갖는 실리콘을 포함하는 물질을 사용하여 형성되는 반도체 소자의 제조 방법.
- 제2항에 있어서, 상기 베이크는 150 내지 250도의 온도 범위에서 상기 실리콘을 포함하는 물질의 유리 전이온도보다 높은 온도에서 수행되는 반도체 소자의 제조 방법.
- 제2항에 있어서, 상기 코팅막 패턴을 형성한 다음, 접착되지 않은 코팅막을 현상 공정을 통해 제거하는 것을 더 포함하는 반도체 소자의 제조 방법.
- 제1항에 있어서, 상기 실리콘 산화막의 표면에는 -OH기가 포함되고 상기 코팅막의 실리콘이 상기 실리콘 산화막 표면의 -OH기에 결합되어 상기 코팅막 패턴이 형성되는 반도체 소자의 제조 방법.
- 제1항에 있어서, 상기 제2 마스크는 평면도에서 볼 때 제1 직경을 갖는 원형을 갖도록 형성되는 반도체 소자의 제조 방법.
- 제1항에 있어서, 상기 제1 요부의 내부의 최소 폭은 상기 제2 마스크의 제1 직경의 1 내지 1.1배가 되도록 상기 실리콘 산화막이 형성되는 반도체 소자의 제조 방법.
- 제1항에 있어서, 상기 제2 마스크를 형성하는 것은,
상기 제1 마스크막 상에 제2 마스크막을 형성하고;
사진 식각 공정을 통해 상기 제2 마스크막을 패터닝하는 것을 포함하는 반도체 소자의 제조 방법. - 제1항에 있어서, 상기 제2 마스크를 형성하는 것은,
상기 제1 마스크막 상에 희생막을 형성하고;
사진 식각 공정을 통해 상기 희생막을 패터닝하여 홀들을 포함하는 예비 희생막 패턴을 형성하고;
상기 홀들 내부에 제2 마스크를 형성하고; 그리고
상기 예비 희생막 패턴을 제거하는 것을 포함하는 반도체 소자의 제조 방법.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150056843A KR102325201B1 (ko) | 2015-04-22 | 2015-04-22 | 반도체 소자의 제조 방법 |
| US15/092,263 US9837272B2 (en) | 2015-04-22 | 2016-04-06 | Methods of manufacturing semiconductor devices |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020150056843A KR102325201B1 (ko) | 2015-04-22 | 2015-04-22 | 반도체 소자의 제조 방법 |
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| KR20160125830A KR20160125830A (ko) | 2016-11-01 |
| KR102325201B1 true KR102325201B1 (ko) | 2021-11-11 |
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| KR102336105B1 (ko) * | 2017-07-19 | 2021-12-06 | 삼성전자주식회사 | 반도체 장치의 제조 방법 |
| KR102437273B1 (ko) | 2018-03-14 | 2022-08-30 | 삼성전자주식회사 | 3차원 반도체 메모리 장치의 제조 방법 |
| CN110707004B (zh) | 2018-10-11 | 2022-02-18 | 联华电子股份有限公司 | 半导体装置及其形成方法 |
| CN110379706B (zh) * | 2019-07-17 | 2021-08-13 | 上海华力微电子有限公司 | 一种优化NAND flash双重曝光关键尺寸的方法 |
| CN112768352B (zh) * | 2019-11-01 | 2023-12-19 | 华邦电子股份有限公司 | 图案化的方法 |
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- 2015-04-22 KR KR1020150056843A patent/KR102325201B1/ko active Active
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2016
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| US20060240361A1 (en) | 2005-04-21 | 2006-10-26 | Ji-Young Lee | Method of forming small pitch pattern using double spacers |
| US20120329282A1 (en) | 2006-03-22 | 2012-12-27 | Taiwan Semiconductor Manufacturing Company, Ltd. | Method and material for forming a double exposure lithography pattern |
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| US20160314970A1 (en) | 2016-10-27 |
| US9837272B2 (en) | 2017-12-05 |
| KR20160125830A (ko) | 2016-11-01 |
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