KR100599328B1 - 연마용 슬러리 및 기판 연마 방법 - Google Patents
연마용 슬러리 및 기판 연마 방법 Download PDFInfo
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- KR100599328B1 KR100599328B1 KR1020040031279A KR20040031279A KR100599328B1 KR 100599328 B1 KR100599328 B1 KR 100599328B1 KR 1020040031279 A KR1020040031279 A KR 1020040031279A KR 20040031279 A KR20040031279 A KR 20040031279A KR 100599328 B1 KR100599328 B1 KR 100599328B1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09G—POLISHING COMPOSITIONS; SKI WAXES
- C09G1/00—Polishing compositions
- C09G1/02—Polishing compositions containing abrasives or grinding agents
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- 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
- H01L21/3105—After-treatment
- H01L21/31051—Planarisation of the insulating layers
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
Abstract
Description
구분 | 연마 입자의 메디안 크기 | 큰 입자 피크의 모드 | 미세 입자 피크의 모드 | 피크면적비율 |
슬러리 1 | 220nm | 259nm | 84nm | 4.85 |
슬러리 2 | 104nm | 222nm | 58nm | 6.68 |
슬러리 3 | 75nm | 176nm | 36nm | 15.22 |
구 분 | 2차입자의 메디안 크기 (nm) | 피크면적비율 | 큰 입자 피크의 모드 (nm) | 산화막의 연마속도 (Å/min) | 질화막의 연마속도 (Å/min) | 산화막 :질화막 연마율비 (선택비) | WIWNU (%) | 산화막 잔류입자 (#) | Scratch (#) |
슬러리 1 | 220 | 4.51 | 259 | 2600 | 60 | 43 | 1.5 | 500 | 8 |
슬러리 2 | 104 | 5.91 | 222 | 2300 | 53 | 50 | 1.0 | 200 | 2 |
슬러리 3 | 75 | 13.83 | 176 | 1900 | 50 | 38 | 1.0 | 100 | 0 |
Claims (19)
- 고상합성법에 의해 제조된 세리아 연마 입자가 분산된 연마용 슬러리로서, 상기 연마 입자는 입자의 메디안 크기가 50 내지 150nm인 크기의 입자를 포함하고, 상기 연마 입자는 메디안 크기가 10 내지 120nm인 크기의 1차 입자를 포함하고, 상기 1차 입자는 입자의 메디안 크기가 10 내지 100nm인 크기의 결정립을 포함하는 것을 특징으로 하는 슬러리.
- 삭제
- 청구항 1에 있어서, 상기 연마 입자는 미세 연마 입자와 큰 연마 입자로 각각 분리된 두개의 피크를 가지는 입자 크기 분포를 가지는 것을 특징으로 하는 슬러리.
- 청구항 3에 있어서, 상기 큰 연마 입자 피크에 대한 상기 미세 연마 입자 피크의 면적 비율(미세 입자의 피크 면적/큰 입자의 피크 면적)이 2 내지 25인 것을 특징으로 하는 슬러리.
- 청구항 3에 있어서, 상기 큰 연마 입자 피크에 대한 상기 미세 연마 입자 피크의 면적 비율(미세 입자의 피크 면적/큰 입자의 피크 면적)이 2.5 내지 20인 것을 특징으로 하는 슬러리.
- 청구항 3에 있어서, 상기 큰 연마 입자 피크에 대한 상기 미세 연마 입자 피크의 면적 비율(미세 입자의 피크 면적/큰 입자의 피크 면적)이 5 내지 17인 것을 특징으로 하는 슬러리.
- 삭제
- 삭제
- 청구항 4에 있어서, 상기 슬러리는 순수 및 음이온계 고분자 화합물을 포함하는 것을 특징으로 하는 슬러리.
- 청구항 9에 있어서, 상기 음이온계 고분자 화합물은 폴리메타크릴산, 암모늄폴리메타크릴레이트, 폴리카르복실네이트, 소디움도데실설페이트, 알킬벤젠술포네이트, 알파올레핀술포네이트, 모노알킬포스페이트 및 패티액시드의 소디움 염, 카르복실-아크릴 폴리머 등으로 구성된 군에서 선택되는 것을 특징으로 하는 슬러리.
- 청구항 9에 있어서, 상기 음이온계 고분자 화합물은 0.0001 내지 10wt%를 포함하는 것을 특징으로 하는 슬러리.
- 청구항 9에 있어서, 상기 음이온계 고분자 화합물은 분자량이 2,000(g/mol) 내지 50,000(g/mol)인 폴리머를 포함하는 것을 특징으로 하는 슬러리.
- 청구항 9에 있어서, 상기 슬러리는 pH 조정 및 슬러리를 안정화시키기 위한 약산, 유기산 또는 약염기를 포함하는 것을 특징으로 하는 슬러리.
- 청구항 1에 있어서, 상기 연마 입자의 입자 크기는 하소 온도와 밀링 조건에 의하여 조절되는 것을 특징으로 하는 슬러리.
- 청구항 3에 있어서, 상기 연마 입자의 입자 크기 및 연마 입자의 입자 크기 분포는 하소 온도와 밀링 조건에 의하여 조절되는 것을 특징으로 하는 슬러리.
- 청구항 14 또는 청구항 15에 있어서, 상기 하소 온도는 400℃ 내지 1300℃인 것을 특징으로 하는 슬러리.
- 세리아 연마 입자가 분산된 연마용 슬러리 제조방법으로서,고상합성법을 통해 입자의 메디안 크기가 50 내지 150nm인 크기이고, 1차 입자의 메디안 크기가 10 내지 120nm인 크기이고, 결정립의 메디안 크기가 10 내지 100nm인 크기의 연마 입자를 준비하는 단계를 포함하는 것을 특징으로 하는 슬러리 제조방법.
- 청구항 1 또는 청구항 3의 슬러리를 사용하여 소정의 기판을 연마하는 것을 특징으로 하는 기판의 연마방법.
- 청구항 18에 있어서, 상기 소정의 기판은 실리콘 산화물막이 형성된 것을 특징으로 하는 기판의 연마방법.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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KR1020040031279A KR100599328B1 (ko) | 2004-05-04 | 2004-05-04 | 연마용 슬러리 및 기판 연마 방법 |
CN2005100550873A CN1667026B (zh) | 2004-03-12 | 2005-03-11 | 抛光浆料及其制备方法和基板的抛光方法 |
CN2006100995890A CN1944496B (zh) | 2004-03-12 | 2005-03-11 | 抛光浆料及其制备方法和基板的抛光方法 |
TW094107443A TWI334882B (en) | 2004-03-12 | 2005-03-11 | Polishing slurry and method of producing same |
US11/078,538 US7470295B2 (en) | 2004-03-12 | 2005-03-11 | Polishing slurry, method of producing same, and method of polishing substrate |
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KR101325343B1 (ko) | 2011-12-29 | 2013-11-08 | 주식회사 케이씨텍 | 연마 제1 입자 및 연마 제2 입자를 포함하는 cmp 슬러리 조성물 |
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KR20200057374A (ko) | 2018-11-16 | 2020-05-26 | 주식회사 케이씨텍 | 연마 슬러리 조성물 및 그의 제조방법 |
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KR101325343B1 (ko) | 2011-12-29 | 2013-11-08 | 주식회사 케이씨텍 | 연마 제1 입자 및 연마 제2 입자를 포함하는 cmp 슬러리 조성물 |
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