KR102293884B1 - 반도체 소자의 제조 방법 - Google Patents
반도체 소자의 제조 방법 Download PDFInfo
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- KR102293884B1 KR102293884B1 KR1020150098234A KR20150098234A KR102293884B1 KR 102293884 B1 KR102293884 B1 KR 102293884B1 KR 1020150098234 A KR1020150098234 A KR 1020150098234A KR 20150098234 A KR20150098234 A KR 20150098234A KR 102293884 B1 KR102293884 B1 KR 102293884B1
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Abstract
Description
도 2 내지 도 9는 도 1에 도시된 반도체 소자의 제조 방법을 설명하기 위한 단면도들이다.
도 10은 예시적인 실시예들에 따른 반도체 소자의 단면도이다.
도 11 및 도 12는 도 10에 도시된 반도체 소자의 제조 방법을 나타내는 단면도들이다.
도 13은 예시적인 실시예들에 따른 반도체 소자를 나타내는 사시도이다.
도 14 내지 도 22는 도 13에 도시된 반도체 소자의 제조 방법을 설명하기 위한 단면도들 및 사시도들이다.
도 23은 예시적인 실시예들에 따른 반도체 소자를 나타내는 사시도이다.
도 24는 도 23에 도시된 반도체 소자의 제조 방법을 설명하기 위한 단면도이다.
106, 206 : 더미 게이트 절연막
108, 208 : 더미 게이트 전극
110, 210 : 제1 하드 마스크 112, 212 : 더미 게이트 구조물
116 : 예비 스페이서막 118, 214 : 스페이서막
118a, 214a : 스페이서 119, 216 : 제2 스페이서막
119a, 216a : 제2 스페이서 121 : 불순물 영역
122, 222 : 제1 층간 절연막 124 : 개구부
126 : 게이트 절연막 128 : 게이트 전극
130 : 하드 마스크 132 : 게이트 구조물
138 : 콘택 플러그 134 : 제2 층간 절연막
140 : 도전 패턴 201a : 액티브 핀
201 : 예비 액티브 핀 218 : 리세스부
220 : 에피택시얼 패턴
Claims (10)
- 기판 상에 게이트 절연막, 게이트 전극 및 하드 마스크가 적층된 제1 게이트 구조물을 형성하고;
상기 제1 게이트 구조물 측벽 및 기판 상에 실리콘 질화물을 포함하는 예비 스페이서막을 형성하고;
상기 예비 스페이서막에 분자를 이온 주입하여 상기 예비 스페이서막보다 낮은 유전율을 갖는 스페이서막을 형성하고;
상기 스페이서막을 이방성 식각하여 상기 제1 게이트 구조물 측벽에 스페이서를 형성하고;
상기 제1 게이트 구조물 양 측의 기판에 불순물 영역을 형성하는 것을 포함하고,
상기 예비 스페이서막에 분자를 이온 주입하는 공정에서, 상기 분자는 탄소와 수소의 화합물 또는 붕소와 수소의 화합물을 포함하는 반도체 소자 제조 방법. - 삭제
- 제1항에 있어서, 상기 분자의 질량은 20AMU 내지 1000AMU이고, 상기 분자의 도즈량은 5E13/cm2 내지 1E16/cm2 인 반도체 소자 제조 방법.
- 제1항에 있어서, 상기 분자의 이온 주입을 수행한 다음, 상기 스페이서막을 열처리 하는 것을 더 포함하는 반도체 소자 제조 방법.
- 제1항에 있어서, 상기 분자의 이온 주입 공정에서, 분자가 주입되는 깊이는 상기 예비 스페이서막의 두께보다 작거나 같은 반도체 소자 제조 방법.
- 제1항에 있어서, 상기 스페이서막 상에 상부 스페이서막을 형성하는 것을 더 포함하는 반도체 소자 제조 방법.
- 제1항에 있어서, 상기 스페이서를 형성한 이 후에,
상기 스페이서 사이를 채우는 층간 절연막을 형성하고;
상기 제1 게이트 구조물을 제거하여 개구부를 형성하고; 그리고,
상기 개구부 내부에, 금속을 포함하는 게이트 전극, 상기 게이트 전극의 측벽 및 저면에 형성되는 게이트 절연막 및 상기 게이트 전극 상에 하드 마스크를 포함하는 제2 게이트 구조물을 형성하는 것을 더 포함하는 반도체 소자 제조 방법. - 제1항에 있어서, 상기 예비 스페이서막은 원자층 적층 공정 또는 화학 기상 증착 공정을 통해 형성하는 반도체 소자 제조 방법.
- 기판 상에 더미 게이트 구조물을 형성하고;
상기 더미 게이트 구조물 측벽 및 기판 상에 실리콘 질화물을 포함하는 예비 스페이서막을 형성하고;
상기 예비 스페이서막에 불순물 분자를 이온 주입하여 상기 예비 스페이서막보다 낮은 유전율을 갖는 스페이서막을 형성하고;
상기 스페이서막을 이방성 식각하여 상기 더미 게이트 구조물 측벽에 스페이서를 형성하고;
상기 스페이서 양 측의 기판을 식각하여 리세스부를 형성하고;
상기 리세스부 내에 불순물 영역을 포함하는 에피택시얼 패턴을 형성하고;
상기 더미 게이트 구조물을 게이트 절연막, 금속을 포함하는 게이트 전극 및 하드 마스크를 포함하는 게이트 구조물로 대체하는 것을 포함하는 반도체 소자 제조 방법. - 제9항에 있어서, 상기 분자의 주입 공정에서 상기 분자는 탄소와 수소의 화합물 또는 붕소와 수소의 화합물을 포함하는 반도체 소자 제조 방법.
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KR1020150098234A KR102293884B1 (ko) | 2015-07-10 | 2015-07-10 | 반도체 소자의 제조 방법 |
US15/171,120 US10049943B2 (en) | 2015-07-10 | 2016-06-02 | Methods of manufacturing a semiconductor device |
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US11018259B2 (en) * | 2015-12-17 | 2021-05-25 | Taiwan Semiconductor Manufacturing Co., Ltd. | Semiconductor device comprising gate structure and doped gate spacer |
US10510851B2 (en) * | 2016-11-29 | 2019-12-17 | Taiwan Semiconductor Manufacturing Company, Ltd. | Low resistance contact method and structure |
US10629494B2 (en) * | 2017-06-26 | 2020-04-21 | Taiwan Semiconductor Manufacturing Company, Ltd. | Semiconductor device and method |
US10510765B2 (en) * | 2017-07-18 | 2019-12-17 | Taiwan Semiconductor Manufacturing Co., Ltd. | Memory device and method for fabricating the same |
US10770354B2 (en) | 2017-11-15 | 2020-09-08 | Taiwan Semiconductor Manufacturing Co., Ltd. | Method of forming integrated circuit with low-k sidewall spacers for gate stacks |
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