KR102463863B1 - 연마용 조성물 및 이를 이용한 반도체 장치의 제조 방법 - Google Patents
연마용 조성물 및 이를 이용한 반도체 장치의 제조 방법 Download PDFInfo
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- KR102463863B1 KR102463863B1 KR1020150102312A KR20150102312A KR102463863B1 KR 102463863 B1 KR102463863 B1 KR 102463863B1 KR 1020150102312 A KR1020150102312 A KR 1020150102312A KR 20150102312 A KR20150102312 A KR 20150102312A KR 102463863 B1 KR102463863 B1 KR 102463863B1
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Abstract
Description
도 8 내지 도 31은 예시적인 실시예들에 따른 반도체 장치의 제조 방법을 설명하기 위한 평면도 및 단면도들이다.
도 32는 실험예에서 사용된 웨이퍼 및 막들의 치수를 나타내는 단면도이다.
도 33은 비교예 및 실시예의 연마용 조성물에 의한 연마량 및 디싱 발생량을 나타내는 그래프이다.
도 34 및 도 35는 각각 비교예에 따른 연마용 조성물에 의한 질화막 및 산화막에 대한 연마후 두께를 나타내는 그래프들이다.
도 36 및 도 37은 각각 실시예에 따른 연마용 조성물에 의한 질화막 및 산화막에 대한 연마후 두께를 나타내는 그래프들이다
| 구분 | 질화막 연마량(Å) | 산화막 잔여량 | 디싱(Å) |
| 비교예 | 70 | 1014 | 416 |
| 실시예 | 27 | 1353 | 90 |
| 구분 | 밀링전 BET표면적 (m2/g) |
밀링후 BET 표면적 (m2/g) |
2차입자 평균직경(nm) |
연마속도 (Å/min) |
결함 개수 |
디싱량 (Å) |
| 비교예 1 | 20 | 23 | 100 | 1800 | 42 | 160 |
| 비교예 2 | 9 | 18 | 100 | 1750 | 67 | 200 |
| 실시예 1 | 4 | 25 | 100 | 1820 | 21 | 120 |
| 디싱량(비교예 조성물) | 디싱량(실시예 조성물) | |
| 패턴밀도 (5%) |
24.6 nm | 18.7 nm |
| 패턴밀도 (10%) |
17.1 nm | 16.9 nm |
115: 패드 산화막 패턴 120: 마스크 막
125, 215: 마스크 패턴 130: 제1 트렌치
135: 제2 트렌치 140: 제1 라이너
145: 제2 라이너 150, 220: 소자 분리막
202: 소자 분리 트렌치 205: 액티브 패턴
218: 제1 산화막 230: 더미 게이트 절연막 패턴
232: 더미 게이트 전극 234: 더미 게이트 마스크
235: 더미 게이트 구조물 236: 게이트 스페이서
239: 리세스 240: 소스/드레인층
245: 제2 산화막 250: 층간 절연막
260: 인터페이스 막 262: 게이트 절연막
263: 게이트 절연막 패턴 264: 버퍼막
265: 버퍼막 패턴 266: 게이트 전극막
267: 게이트 전극 270: 패시베이션 막
275: 콘택 홀 280: 실리사이드 층
285: 플러그
Claims (10)
- 연마 입자;
친수성기가 결합된 피롤리돈;
분산제;
폴리아크릴산을 포함하는 제1 디싱 억제제; 및
비이온성 고분자를 포함하는 제2 디싱 억제제를 포함하고,
상기 연마 입자의 밀링 전 BET 표면적은 3 m2/g 내지 8 m2/g 이며, 밀링 후 BET 표면적은 10 m2/g 내지 30 m2/g 인 연마용 조성물. - 삭제
- 제1항에 있어서, 상기 연마 입자의 상기 밀링 후 BET 표면적은 20 m2/g 내지 30 m2/g 인 연마용 조성물.
- 제1항에 있어서, 상기 친수성기가 결합된 피롤리돈은 1-(2-히드록시에틸)-2-피롤리돈을 포함하는 연마용 조성물.
- 제1항에 있어서, 상기 분산제는 수산화기를 포함하는 화합물로 선택적으로 중화된 음이온성 고분자를 포함하는 연마용 조성물.
- 제5항에 있어서, 상기 분산제는 폴리아크릴산, 폴리메타크릴산 및 폴리아크릴 말레익산 중에서 선택된 적어도 하나, 또는 이의 염을 포함하는 연마용 조성물.
- 제5항에 있어서, 상기 분산제는 10,000 내지 100,000 범위의 중량평균분자량을 갖는 상기 음이온성 고분자를 포함하는 연마용 조성물
- 제1항에 있어서, 상기 제1 디싱 억제제는 중량평균분자량 500 내지 10,000 범위의 폴리아크릴산을 포함하는 연마용 조성물.
- 제1항에 있어서, 상기 제2 디싱 억제제는 폴리에틸렌글리콜, 폴리비닐알콜, 글리세린, 폴리프로필렌글리콜 및 폴리비닐피롤리돈으로 이루어진 그룹에서 선택된 적어도 하나를 포함하는 연마용 조성물.
- 제1항에 있어서, 상기 조성물의 총 중량 대비
0.1 중량% 내지 10 중량%의 상기 연마 입자;
0.01 중량% 내지 5 중량%의 상기 친수성기가 결합된 피롤리돈;
0.01 중량% 내지 10 중량%의 상기 분산제;
0.05 중량% 내지 5 중량%의 상기 제1 디싱 억제제;
0.0005 중량% 내지 0.1 중량%의 상기 제2 디싱 억제제; 및
잔량의 희석액을 포함하는 연마용 조성물.
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| US10497652B1 (en) * | 2018-07-31 | 2019-12-03 | Macronix International Co., Ltd. | Semiconductor substrate and semiconductor device |
| US10727076B2 (en) * | 2018-10-25 | 2020-07-28 | Taiwan Semiconductor Manufacturing Company Ltd. | Slurry and manufacturing semiconductor using the slurry |
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| US10763119B2 (en) | 2018-12-19 | 2020-09-01 | Fujifilm Electronic Materials U.S.A., Inc. | Polishing compositions and methods of using same |
| US10759970B2 (en) * | 2018-12-19 | 2020-09-01 | Fujifilm Electronic Materials U.S.A., Inc. | Polishing compositions and methods of using same |
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| KR20170010546A (ko) | 2017-02-01 |
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