KR102681976B1 - 반도체 공정용 연마 조성물, 연마 조성물의 제조 방법 및 연마 조성물을 적용한 반도체 소자의 제조 방법 - Google Patents
반도체 공정용 연마 조성물, 연마 조성물의 제조 방법 및 연마 조성물을 적용한 반도체 소자의 제조 방법 Download PDFInfo
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- KR102681976B1 KR102681976B1 KR1020210138183A KR20210138183A KR102681976B1 KR 102681976 B1 KR102681976 B1 KR 102681976B1 KR 1020210138183 A KR1020210138183 A KR 1020210138183A KR 20210138183 A KR20210138183 A KR 20210138183A KR 102681976 B1 KR102681976 B1 KR 102681976B1
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- HNDVDQJCIGZPNO-UHFFFAOYSA-N histidine Natural products OC(=O)C(N)CC1=CN=CN1 HNDVDQJCIGZPNO-UHFFFAOYSA-N 0.000 description 1
- 125000002962 imidazol-1-yl group Chemical group [*]N1C([H])=NC([H])=C1[H] 0.000 description 1
- 125000003406 indolizinyl group Chemical group C=1(C=CN2C=CC=CC12)* 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 125000000555 isopropenyl group Chemical group [H]\C([H])=C(\*)C([H])([H])[H] 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 125000002868 norbornyl group Chemical group C12(CCC(CC1)C2)* 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 1
- 125000005561 phenanthryl group Chemical group 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 235000011118 potassium hydroxide Nutrition 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- 125000000561 purinyl group Chemical group N1=C(N=C2N=CNC2=C1)* 0.000 description 1
- 125000003373 pyrazinyl group Chemical group 0.000 description 1
- 125000002098 pyridazinyl group Chemical group 0.000 description 1
- 125000004076 pyridyl group Chemical group 0.000 description 1
- 125000000246 pyrimidin-2-yl group Chemical group [H]C1=NC(*)=NC([H])=C1[H] 0.000 description 1
- 125000000714 pyrimidinyl group Chemical group 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 125000005493 quinolyl group Chemical group 0.000 description 1
- 229960004889 salicylic acid Drugs 0.000 description 1
- 229930195734 saturated hydrocarbon Natural products 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000010557 suspension polymerization reaction Methods 0.000 description 1
- 125000004306 triazinyl group Chemical group 0.000 description 1
- 229910052722 tritium Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/14—Anti-slip materials; Abrasives
- C09K3/1436—Composite particles, e.g. coated particles
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/14—Anti-slip materials; Abrasives
- C09K3/1454—Abrasive powders, suspensions and pastes for polishing
-
- 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
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02115—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material being carbon, e.g. alpha-C, diamond or hydrogen doped carbon
-
- 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
- H01L21/31053—Planarisation of the insulating layers involving a dielectric removal step
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Composite Materials (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
또한, 반도체 공정용 연마 조성물을 적용한 반도체 소자의 제조 방법을 제공할 수 있다.
Description
안정화제 종류 | |
비교예 1 | Ammonium chloride |
비교예 2 | Hydrochloric acid |
비교예 3 | Histidine |
비교예 4 | Phosphoric acid |
비교예 5 | Formic acid |
비교예 6 | Ammonium phosphate |
비교예 7 | Citric acid |
비교예 8 | Tartaric acid |
비교예 9 | Malonic acid |
비교예 10 | Maleic acid |
비교예 11 | Oxalic acid |
Mini polisher(POLI-400) | ||||
상온 RR* | 고온 RR** | 감소율(%) | 비고 | |
실시예 1 | 80 | 81 | -1% | |
실시예 2 | 82 | 79 | 4% | |
비교예 1 | 78 | 43 | 45% | |
비교예 2 | 82 | 51 | 38% | |
비교예 3 | 77 | 29 | 62% | |
비교예 4 | 76 | 46 | 39% | |
비교예 5 | 85 | 35 | 59% | |
비교예 6 | - | - | - | 응집 |
비교예 7 | - | - | - | 응집 |
비교예 8 | - | - | - | 응집 |
비교예 9 | - | - | - | 응집 |
비교예 10 | - | - | - | 응집 |
비교예 11 | - | - | - | 응집 |
300mm 연마 | |||||
1일 | 9일 | 15일 | 22일 | 29일 | |
실시예 1 | 189 | 199 | 190 | 181 | 202 |
비교예 12 | 139 | 110 | 38 | 34 | 32 |
120: 정반
130: 반도체 기판
140: 노즐
150: 연마 슬러리
160: 연마 헤드
170: 컨디셔너
Claims (10)
- 연마 입자, 가속화제 및 안정화제를 포함하며,
상기 가속화제는 세륨염을 포함하고,
상기 안정화제는 하기 화학식 2 또는 화학식 3으로 표시되는 화합물인
반도체 공정용 연마 조성물:
[화학식 2]
[화학식 3]
상기 화학식 2 및 상기 화학식 3에서,
n은 0 내지 4의 정수이며,
R4는 수소, 메틸기, 에틸기, 프로필기, 이소부틸기, sec-부틸기, 펜틸기, iso-아밀기, 헥실기, 치환 또는 비치환된 탄소수 3 내지 10의 시클로 알킬기, 치환 또는 비치환된 탄소수 2 내지 10의 알케닐기 및 치환 또는 비치환된 탄소수 2 내지 10의 알키닐기로 이루어진 군으로부터 선택되고,
R5는 수소, 치환 또는 비치환된 탄소수 1 내지 10의 알킬기, 치환 또는 비치환된 탄소수 3 내지 10의 시클로 알킬기, 치환 또는 비치환된 탄소수 2 내지 10의 알케닐기 및 치환 또는 비치환된 탄소수 2 내지 10의 알키닐기로 이루어진 군으로부터 선택될 수 있다. - 삭제
- 제1항에 있어서,
상기 연마 입자는 금속 산화물, 유기 입자, 유기-무기 복합 입자 및 이들의 혼합으로 이루어진 군으로부터 선택되는
반도체 공정용 연마 조성물. - 제1항에 있어서,
상기 가속화제는 음이온계 저분자, 음이온계 고분자, 하이드록실산 및 아미노산으로 이루어진 군으로부터 선택되는 적어도 하나를 더 포함하는
반도체 공정용 연마 조성물. - 제1항에 있어서,
상기 연마 조성물은 계면활성제를 포함하는
반도체 공정용 연마 조성물. - 제1항에 있어서,
상기 연마 조성물은 pH 조절제를 포함하는
반도체 공정용 연마 조성물. - 제1항에 있어서,
상기 연마 조성물은 하기 식 1에 따른 값이 38% 미만인
반도체 공정용 연마 조성물:
[식 1]
여기서,
상기 RR0는 상기 연마 조성물을 이용하여 하기와 같은 연마 조건 하에서 측정된 연마율이며,
상기 RRf는 상기 연마 조성물을 45℃에서 10시간 동안 보관하고, 15 내지 25℃로 냉각시킨 후, 하기와 같은 연마 조건 하에서 측정된 연마율이며,
상기 연마 조건은 온도 조건이 15 내지 25℃이며, 연마 헤드의 회전 속도는 87rpm이며, 정반 회전 속도는 93rpm이며, 상기 연마 조성물의 주입 속도는 90ml/min이며, 연마 시간은 60초이며, 웨이퍼는 비정질탄소막 웨이퍼로 두께가 2000Å이고, 가로 및 세로의 크기가 4cm×4cm이며, Mini polisher를 이용하여 연마하며,
상기 RR0 및 RRf는 상기 연마 조건하에서 연마 전후의 비정질탄소막의 두께를 측정하여 환산된 연마율이다. - a) 용매에 안정화제 및 가속화제를 넣고 혼합하여 연마 용액을 제조하는 단계;
b) 상기 연마 용액에 pH 조절제를 넣어 연마 용액의 pH를 2 내지 5로 조정하는 단계; 및
c) 상기 pH가 2 내지 5인 연마 용액에 계면활성제 및 연마 입자를 혼합하는 단계를 포함하며,
상기 가속화제를 세륨염을 포함하고,
상기 안정화제는 하기 화학식 2 또는 화학식 3으로 표시되는 화합물인
반도체 공정용 연마 조성물의 제조 방법:
[화학식 2]
[화학식 3]
상기 화학식 2 및 상기 화학식 3에서,
n은 0 내지 4의 정수이며,
R4는 수소, 메틸기, 에틸기, 프로필기, 이소부틸기, sec-부틸기, 펜틸기, iso-아밀기, 헥실기, 치환 또는 비치환된 탄소수 3 내지 10의 시클로 알킬기, 치환 또는 비치환된 탄소수 2 내지 10의 알케닐기 및 치환 또는 비치환된 탄소수 2 내지 10의 알키닐기로 이루어진 군으로부터 선택되고,
R5는 수소, 치환 또는 비치환된 탄소수 1 내지 10의 알킬기, 치환 또는 비치환된 탄소수 3 내지 10의 시클로 알킬기, 치환 또는 비치환된 탄소수 2 내지 10의 알케닐기 및 치환 또는 비치환된 탄소수 2 내지 10의 알키닐기로 이루어진 군으로부터 선택될 수 있다. - 제8항에 있어서,
상기 a) 단계는 용매에 안정화제를 혼합하여 혼합 용액으로 제조하고,
상기 혼합 용액에 가속화제를 혼합하여 연마 용액으로 제조하는 것인
반도체 공정용 연마 조성물의 제조 방법. - 1) 연마층을 포함하는 연마패드를 제공하는 단계;
2) 상기 연마패드로 반도체 공정용 연마 조성물을 공급하는 단계; 및
3) 상기 연마층의 연마면에 연마 대상의 피연마면이 맞닿도록 상대 회전시키면서 상기 연마 대상을 연마시키는 단계;를 포함하며,
상기 연마 조성물은 연마 입자, 가속화제 및 안정화제를 포함하고,
상기 가속화제를 세륨염을 포함하고,
상기 안정화제는 하기 화학식 2 또는 화학식 3으로 표시되는 화합물인
반도체 소자의 제조 방법:
[화학식 2]
[화학식 3]
상기 화학식 2 및 상기 화학식 3에서,
n은 0 내지 4의 정수이며,
R4는 수소, 메틸기, 에틸기, 프로필기, 이소부틸기, sec-부틸기, 펜틸기, iso-아밀기, 헥실기, 치환 또는 비치환된 탄소수 3 내지 10의 시클로 알킬기, 치환 또는 비치환된 탄소수 2 내지 10의 알케닐기 및 치환 또는 비치환된 탄소수 2 내지 10의 알키닐기로 이루어진 군으로부터 선택되고,
R5는 수소, 치환 또는 비치환된 탄소수 1 내지 10의 알킬기, 치환 또는 비치환된 탄소수 3 내지 10의 시클로 알킬기, 치환 또는 비치환된 탄소수 2 내지 10의 알케닐기 및 치환 또는 비치환된 탄소수 2 내지 10의 알키닐기로 이루어진 군으로부터 선택될 수 있다.
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US18/255,958 US20240043719A1 (en) | 2020-12-30 | 2021-10-18 | Polishing composition for semiconductor processing,method for preparing polishing composition, and method for manufacturing semiconductor element to which polishing composition is applied |
PCT/KR2021/014487 WO2022145654A1 (ko) | 2020-12-30 | 2021-10-18 | 반도체 공정용 연마 조성물, 연마 조성물의 제조 방법 및 연마 조성물을 적용한 반도체 소자의 제조 방법 |
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KR100816651B1 (ko) * | 2006-03-31 | 2008-03-27 | 테크노세미켐 주식회사 | 제올라이트를 함유하는 구리 화학 기계적 연마 조성물 |
CN111378416A (zh) * | 2013-09-10 | 2020-07-07 | 日立化成株式会社 | 悬浮液、研磨液套剂、研磨液、基体的研磨方法以及基体 |
US9978609B2 (en) * | 2015-04-27 | 2018-05-22 | Versum Materials Us, Llc | Low dishing copper chemical mechanical planarization |
KR20180064018A (ko) * | 2016-12-05 | 2018-06-14 | 솔브레인 주식회사 | 화학적 기계적 연마 슬러리 조성물 및 이를 이용한 반도체 소자의 제조방법 |
KR102210251B1 (ko) * | 2017-11-10 | 2021-02-01 | 삼성에스디아이 주식회사 | 유기막 cmp 슬러리 조성물 및 이를 이용한 연마 방법 |
KR102343437B1 (ko) * | 2018-11-16 | 2021-12-24 | 삼성에스디아이 주식회사 | 비정질탄소막용 cmp 슬러리 조성물 및 이를 이용한 연마 방법 |
KR102185042B1 (ko) * | 2018-11-27 | 2020-12-01 | 주식회사 케이씨텍 | 연마용 슬러리 조성물 |
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