KR100450985B1 - 화학적 기계적 연마용 슬러리 - Google Patents
화학적 기계적 연마용 슬러리 Download PDFInfo
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- KR100450985B1 KR100450985B1 KR20010073321A KR20010073321A KR100450985B1 KR 100450985 B1 KR100450985 B1 KR 100450985B1 KR 20010073321 A KR20010073321 A KR 20010073321A KR 20010073321 A KR20010073321 A KR 20010073321A KR 100450985 B1 KR100450985 B1 KR 100450985B1
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- South Korea
- Prior art keywords
- slurry
- polishing
- chemical mechanical
- weight
- mechanical polishing
- Prior art date
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- ODKSFYDXXFIFQN-BYPYZUCNSA-P L-argininium(2+) Chemical compound NC(=[NH2+])NCCC[C@H]([NH3+])C(O)=O ODKSFYDXXFIFQN-BYPYZUCNSA-P 0.000 claims description 34
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- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
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Abstract
Description
연마 지립(중량%) | 유기산(중량%) | 염기성 아미노산(중량%) | Ta 연마 속도(nm/분) | |
실시예 1 | 알루미나(8) | 없음 | 아르기닌(0.01) | 11.98 |
실시예 2 | 알루미나(8) | 없음 | 아르기닌(0.1) | 4.31 |
실시예 3 | 알루미나(8) | 없음 | 아르기닌(0.5) | 2.03 |
실시예 4 | 알루미나(8) | 없음 | 아르기닌(1.0) | 1.44 |
실시예 5 | 알루미나(8) | 없음 | 아르기닌(2.0) | 0.99 |
실시예 6 | 알루미나(8) | 없음 | 아르기닌(5.0) | 0.51 |
실시예 7 | 알루미나(8) | 없음 | 아르기닌(10.0) | 0.22 |
실시예 8 | 알루미나(8) | 글리신(1.0) | 아르기닌(1.0) | 1.22 |
실시예 9 | 알루미나(8) | 시트르산(1.0) | 아르기닌(1.0) | 1.75 |
실시예 10 | 알루미나(8) | 말산(1.0) | 아르기닌(1.0) | 1.53 |
실시예 11 | 실리카(8) | 시트르산(1.0) | 아르기닌(1.0) | 0.66 |
실시예 12 | 알루미나(8) | 없음 | 히스티딘(1.0) | 2.41 |
실시예 13 | 알루미나(8) | 없음 | 라이신(1.0) | 2.01 |
비교예 1 | 알루미나(8) | 없음 | 없음 | 17.8 |
비교예 2 | 실리카(8) | 시트르산(1.0) | 없음 | 84.6 |
연마 지립(중량%) | 유기산(중량%) | 염기성 아미노산(중량%) | Ta 연마 속도(nm/분) | Cu 연마 속도(nm/분) | Cu 연마 속도/Ta 연마 속도 | |
실시예 14 | 알루미나(8) | 글리신(1.0) | 아르기닌(0.5) | 2.12 | 705 | 332 |
비교예 3 | 알루미나(8) | 글리신(1.0) | 없음 | 17.9 | 920 | 51.4 |
Claims (20)
- 연마 지립(砥立), 산화제, 및 아르기닌, 아르기닌 유도체, 라이신, 라이신 유도체, 히스티딘 및 히스티딘 유도체로 이루어지는 군으로부터 선택된 염기성 아미노산 화합물을 함유하는, 탄탈-함유 금속막 상에 형성된 구리-함유 금속막을 연마하기 위한 화학적 기계적 연마용 슬러리로, pH 값이 3 이상 9 이하인 슬러리.
- 제 1 항에 있어서, 상기 염기성 아미노산 화합물은 α-아미노산이고, 그의 측쇄가 하기 화학식 1, 2, 및 3 으로 표시되는 구조로 이루어지는 군으로부터 선택된 하나 이상의 구조를 갖는 화학적 기계적 연마용 슬러리:
R1R2N- -NR3- =NR4 [식 중, R1, R2, R3및 R4는 독립적으로 수소, 또는 1 내지 18 개의 탄소를 함유하는 탄화수소기를 나타냄]. - 제 1 항에 있어서, 상기 염기성 아미노산 화합물은 그 측쇄의 전리 지수가 10 이상 15 이하인 질소함유 측쇄를 갖는 α-아미노산인 화학적 기계적 연마용 슬러리.
- 삭제
- 제 1 항에 있어서, 상기 염기성 아미노산 화합물이 화학적 기계적 연마용 슬러리의 총 량에 대해 0.01 중량% 이상 10 중량% 이하의 양으로 존재하는 화학적 기계적 연마용 슬러리.
- 제 1 항에 있어서, 추가적으로 유기산을 화학적 기계적 연마용 슬러리의 총 량에 대해 0.01 중량% 이상 5 중량% 이하의 양으로 함유하는 화학적 기계적 연마용 슬러리.
- 삭제
- 제 1 항에 있어서, 상기 연마 지립은 실리카 연마재인 화학적 기계적 연마용 슬러리.
- 제 3 항에 있어서, 상기 염기성 아미노산 화합물이 화학적 기계적 연마용 슬러리의 총 량에 대해 0.01 중량% 이상 10 중량% 이하의 양으로 존재하는 화학적 기계적 연마용 슬러리.
- 제 9 항에 있어서, 슬러리가 10 nm/분 이하의 탄탈 연마 속도를 갖고, 300 nm/분 이상 1500 nm/분 이하의 구리 연마 속도를 가지며, 여기에서 탄탈 연마 속도에 대한 구리 연마 속도의 비가 50:1 초과인 화학적 기계적 연마용 슬러리.
- 제 10 항에 있어서, 연마 지립의 양이 1 내지 30 중량% 이고, 산화제의 양이 0.01 내지 15 중량% 인 화학적 기계적 연마용 슬러리.
- 제 11 항에 있어서, 상기 염기성 아미노 화합물의 측쇄가 11 이상 14 이하의 전리 지수를 갖고, 이는 0.1 중량% 이상 2 중량% 이하의 양으로 존재하며, 연마지립의 양은 3 내지 10 중량% 이고, 산화제의 양은 0.1 내지 10 중량% 이며, 슬러리가 4 이상 8 이하의 pH 를 갖는 화학적 기계적 연마용 슬러리.
- 제 12 항에 있어서, 탄탈 연마 속도가 3 nm/분 이하이고, 구리 연마 속도가 300 nm/분 이상 1000 nm/분 이하이고, 탄탈 연마 속도에 대한 구리 연마 속도의 비가 100:1 초과인 화학적 기계적 연마용 슬러리.
- 제 10 항에 있어서, 화학적 기계적 연마용 슬러리의 총 량에 대해 0.01 중량% 이상 5 중량% 이하의 양의 유기산을 추가로 함유하는 화학적 기계적 연마용 슬러리.
- 제 14 항에 있어서, 추가적으로 산화방지제를 0.001 내지 5 중량% 의 양으로 함유하는 화학적 기계적 연마용 슬러리.
- 제 15 항에 있어서, 유기산의 양이 0.05 내지 3 중량% 이고, 산화방지제의 양이 0.001 내지 2.5 중량% 인 화학적 기계적 연마용 슬러리.
- 제 16 항에 있어서, 상기 연마 지립이 알루미나, 실리카 연마재, 및 티타니아, 지르코니아, 게르마니아 및 세리아로 이루어지는 군으로부터 선택된 다른 금속 산화물 연마 지립으로 이루어지는 군으로부터 선택된 금속계 연마 지립인 화학적 기계적 연마용 슬러리.
- 제 17 항에 있어서, 상기 연마 지립이 실리콘 디옥시드인 화학적 기계적 연마용 슬러리.
- 제 10 항에 있어서, 상기 연마 지립이 알루미나, 실리카 연마재, 및 티타니아, 지르코니아, 게르마니아 및 세리아로 이루어지는 군으로부터 선택된 다른 금속 산화물 연마 지립으로 이루어지는 군으로부터 선택된 금속계 연마 지립인 화학적 기계적 연마용 슬러리.
- 제 19 항에 있어서, 상기 연마 지립이 실리콘 디옥시드인 화학적 기계적 연마용 슬러리.
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TWI283266B (en) | 2007-07-01 |
JP2002164309A (ja) | 2002-06-07 |
KR20020040637A (ko) | 2002-05-30 |
JP3825246B2 (ja) | 2006-09-27 |
US20020095874A1 (en) | 2002-07-25 |
US6585786B2 (en) | 2003-07-01 |
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