KR102240213B1 - 고두께 스핀 온 카본 하드마스크 조성물 및 이를 이용한 패턴화 방법 - Google Patents
고두께 스핀 온 카본 하드마스크 조성물 및 이를 이용한 패턴화 방법 Download PDFInfo
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- 239000000203 mixture Substances 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000000059 patterning Methods 0.000 title claims abstract description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title description 4
- 229910052799 carbon Inorganic materials 0.000 title description 4
- 238000004528 spin coating Methods 0.000 claims abstract description 6
- 229920000642 polymer Polymers 0.000 claims description 37
- -1 methyl ethyl Chemical group 0.000 claims description 28
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 24
- LZCLXQDLBQLTDK-UHFFFAOYSA-N ethyl 2-hydroxypropanoate Chemical compound CCOC(=O)C(C)O LZCLXQDLBQLTDK-UHFFFAOYSA-N 0.000 claims description 16
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 claims description 14
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 claims description 12
- 239000004094 surface-active agent Substances 0.000 claims description 10
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 9
- 239000003960 organic solvent Substances 0.000 claims description 9
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical group COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 claims description 8
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 claims description 8
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 8
- DKPFZGUDAPQIHT-UHFFFAOYSA-N butyl acetate Chemical compound CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 8
- BHXIWUJLHYHGSJ-UHFFFAOYSA-N ethyl 3-ethoxypropanoate Chemical compound CCOCCC(=O)OCC BHXIWUJLHYHGSJ-UHFFFAOYSA-N 0.000 claims description 8
- 229940116333 ethyl lactate Drugs 0.000 claims description 8
- BDJSOPWXYLFTNW-UHFFFAOYSA-N methyl 3-methoxypropanoate Chemical compound COCCC(=O)OC BDJSOPWXYLFTNW-UHFFFAOYSA-N 0.000 claims description 8
- 229920001214 Polysorbate 60 Polymers 0.000 claims description 4
- 150000005215 alkyl ethers Chemical class 0.000 claims description 4
- 229920002114 octoxynol-9 Polymers 0.000 claims description 4
- 229920002503 polyoxyethylene-polyoxypropylene Polymers 0.000 claims description 3
- 150000002576 ketones Chemical class 0.000 claims 2
- 239000004065 semiconductor Substances 0.000 abstract description 9
- 238000001459 lithography Methods 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 58
- 150000001875 compounds Chemical class 0.000 description 27
- 238000005227 gel permeation chromatography Methods 0.000 description 13
- 238000005259 measurement Methods 0.000 description 13
- 238000000576 coating method Methods 0.000 description 11
- 239000004793 Polystyrene Substances 0.000 description 9
- 239000011248 coating agent Substances 0.000 description 9
- 238000002474 experimental method Methods 0.000 description 9
- 229920002223 polystyrene Polymers 0.000 description 9
- 229920002120 photoresistant polymer Polymers 0.000 description 7
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 6
- BIJNHUAPTJVVNQ-UHFFFAOYSA-N 1-Hydroxypyrene Chemical compound C1=C2C(O)=CC=C(C=C3)C2=C2C3=CC=CC2=C1 BIJNHUAPTJVVNQ-UHFFFAOYSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- 238000005229 chemical vapour deposition Methods 0.000 description 4
- DENRZWYUOJLTMF-UHFFFAOYSA-N diethyl sulfate Chemical compound CCOS(=O)(=O)OCC DENRZWYUOJLTMF-UHFFFAOYSA-N 0.000 description 4
- 229940008406 diethyl sulfate Drugs 0.000 description 4
- DAJPMKAQEUGECW-UHFFFAOYSA-N 1,4-bis(methoxymethyl)benzene Chemical compound COCC1=CC=C(COC)C=C1 DAJPMKAQEUGECW-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000001312 dry etching Methods 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- JWAZRIHNYRIHIV-UHFFFAOYSA-N 2-naphthol Chemical compound C1=CC=CC2=CC(O)=CC=C21 JWAZRIHNYRIHIV-UHFFFAOYSA-N 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002736 nonionic surfactant Substances 0.000 description 2
- 229920000259 polyoxyethylene lauryl ether Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910003481 amorphous carbon Inorganic materials 0.000 description 1
- 229950011260 betanaphthol Drugs 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000000445 field-emission scanning electron microscopy Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- ZTHILIOZOSXTON-UHFFFAOYSA-N perylen-3-ol Chemical group C=12C3=CC=CC2=CC=CC=1C1=CC=CC2=C1C3=CC=C2O ZTHILIOZOSXTON-UHFFFAOYSA-N 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000000425 proton nuclear magnetic resonance spectrum Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/09—Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers
- G03F7/094—Multilayer resist systems, e.g. planarising layers
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- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/09—Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers
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- C09D165/00—Coating compositions based on macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain; Coating compositions based on derivatives of such polymers
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- G03F7/16—Coating processes; Apparatus therefor
- G03F7/162—Coating on a rotating support, e.g. using a whirler or a spinner
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- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/16—Coating processes; Apparatus therefor
- G03F7/168—Finishing the coated layer, e.g. drying, baking, soaking
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
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Abstract
Description
본 발명의 일 구현예에 따르면, 하기 화학식 1 내지 화학식 4 중에서 어느 하나로 표시되는 중합체로서 중량평균분자량 1,900 내지 10,500을 가지는 것을 특징으로 하는 스핀 온 카본 하드마스크 조성물인 것이다.
[화학식 1]
[화학식 2]
[화학식 3]
[화학식 4]
Sample | 코팅두께(nm) | 코팅성 | |
실험예1 | 실시예1 | 150 | 양호 |
실험예2 | 실시예2 | 110 | 양호 |
실험예3 | 실시예3 | 230 | 양호 |
실험예4 | 실시예4 | 160 | 양호 |
실험예5 | 실시예5 | 145 | 양호 |
실험예6 | 실시예6 | 140 | 양호 |
실험예7 | 실시예1 | 2800 | 양호 |
실험예8 | 실시예2 | 2200 | 양호 |
실험예9 | 실시예3 | 3040 | 불량 |
실험예10 | 실시예4 | 2870 | 양호 |
실험예11 | 실시예5 | 2650 | 양호 |
실험예12 | 실시예6 | 2520 | 양호 |
비교실험예1 | 비교예1 | 130 | 양호 |
비교실험예2 | 비교예2 | 100 | 양호 |
비교실험예3 | 비교예3 | 139 | 양호 |
비교실험예4 | 비교예1 | 2380 | 불량 |
비교실험예5 | 비교예2 | 1850 | 불량 |
비교실험예6 | 비교예3 | 2450 | 불량 |
Sample | 굴절율 (n@193nm) | 흡광계수 (k@193nm) | |
실험예1 | 실시예1 | 1.40 | 0.46 |
실험예2 | 실시예2 | 1.39 | 0.46 |
실험예3 | 실시예3 | 1.40 | 0.47 |
실험예4 | 실시예4 | 1.43 | 0.48 |
실험예5 | 실시예5 | 1.50 | 0.50 |
실험예6 | 실시예6 | 1.53 | 0.51 |
실험예7 | 실시예1 | 1.40 | 0.46 |
실험예8 | 실시예2 | 1.39 | 0.46 |
실험예9 | 실시예3 | - | - |
실험예10 | 실시예4 | 1.43 | 0.48 |
실험예11 | 실시예5 | 1.50 | 0.50 |
실험예12 | 실시예6 | 1.53 | 0.51 |
비교실험예1 | 비교예1 | 1.44 | 0.69 |
비교실험예2 | 비교예2 | 1.44 | 0.69 |
비교실험예3 | 비교예3 | 1.38 | 0.48 |
비교실험예4 | 비교예1 | - | - |
비교실험예5 | 비교예2 | - | - |
비교실험예6 | 비교예3 | - | - |
Sample | ACL 대비 CF4 etch 특성 | |
실험예1 | 실시예1 | 92.0% |
실험예2 | 실시예2 | 88.0% |
실험예3 | 실시예3 | 93.0% |
실험예4 | 실시예4 | 93.5% |
실험예5 | 실시예5 | 91.0% |
실험예6 | 실시예6 | 90.0% |
실험예7 | 실시예1 | 92.0% |
실험예8 | 실시예2 | 88.0% |
실험예9 | 실시예3 | 92.8% |
실험예10 | 실시예4 | 93.3% |
실험예11 | 실시예5 | 90.6% |
실험예12 | 실시예6 | 90.3% |
비교실험예1 | 비교예1 | 81.0% |
비교실험예2 | 비교예2 | 56.4% |
비교실험예3 | 비교예3 | 84.0% |
비교실험예4 | 비교예1 | - |
비교실험예5 | 비교예2 | - |
비교실험예6 | 비교예3 | - |
ACL | 100% |
Claims (15)
- 삭제
- 삭제
- 삭제
- 삭제
- 제1항에 있어서, 상기 중합체는 상기 전체 조성물 중 1 내지 50 중량%로 포함되는 것을 특징으로 하는 스핀 온 하드마스크 조성물.
- 제1항에 있어서, 상기 유기 용매는 상기 전체 조성물 중 50 내지 98 중량%로 포함되는 것을 특징으로 하는 스핀 온 하드마스크 조성물.
- 제1항에 있어서, 상기 계면활성제는 상기 전체 조성물 중 0 내지 2 중량%(단, 0은 제외한다)로 포함되는 것을 특징으로 하는 스핀 온 하드마스크 조성물.
- 제1항에 있어서, 상기 유기 용매로는 프로필렌클리콜모노메틸에테르(PGME), 프로필렌글리콜모노메틸에테르 아세테이트(PGMEA), 시클로헥산온, γ-부티로락톤, 에틸락테이트(EL), 메틸에틸케톤, n-부틸아세테이트, N-메틸피롤리돈(NMP), 메틸 3-메톡시프로피오네이트(MMP), 에틸 3-에톡시프로피오네이트(EEP) 또는 디메틸포름아미드(DMF) 중에서 선택된 1종 또는 이들의 2종 이상의 혼합물로 구성된 군에서 선택되는 것을 특징으로 하는 스핀 온 하드마스크 조성물.
- 제1항에 있어서, 상기 계면활성제는 폴리옥시에틸렌알킬에테르류, 폴리옥시에틸렌알킬페닐에테르류, 폴리옥시에틸렌노닐페닐에테르류, 폴리옥시에틸렌옥틸페닐에테르류, 폴리옥시에틸렌폴리옥시프로필렌류, 폴리옥시에틸렌라우릴에테르류 또는 폴리옥시에틸렌소비탄류로부터 선택된 1종 또는 이들의 2종 이상의 혼합물로 구성된 군에서 선택되는 것을 특징으로 하는 스핀 온 하드마스크 조성물.
- 제1항에 있어서, 상기 스핀 온 하드마스크 조성물 중 중합체 1 내지 50 중량%; 유기 용매 50 내지 98 중량%; 및 계면활성제 0 내지 2 중량%(단, 0은 제외한다);로 이루어지는 것을 특징으로 하는 스핀 온 하드마스크 조성물.
- 제11항에 있어서, 상기 유기 용매로는 프로필렌클리콜모노메틸에테르(PGME), 프로필렌글리콜모노메틸에테르 아세테이트(PGMEA), 시클로헥산온, γ-부티로락톤, 에틸락테이트(EL), 메틸에틸케톤, n-부틸아세테이트, N-메틸피롤리돈(NMP), 메틸 3-메톡시프로피오네이트(MMP), 에틸 3-에톡시프로피오네이트(EEP) 또는 디메틸포름아미드(DMF) 중에서 선택된 1종 또는 이들의 2종 이상의 혼합물로 구성된 군에서 선택되는 것을 특징으로 하는 스핀 온 하드마스크 조성물.
- 제11항에 있어서, 상기 계면활성제는 폴리옥시에틸렌알킬에테르류, 폴리옥시에틸렌알킬페닐에테르류, 폴리옥시에틸렌노닐페닐에테르류, 폴리옥시에틸렌옥틸페닐에테르류, 폴리옥시에틸렌폴리옥시프로필렌류, 폴리옥시에틸렌라우릴에테르류 또는 폴리옥시에틸렌소비탄류로부터 선택된 1종 또는 이들의 2종 이상의 혼합물로 구성된 군에서 선택되는 것을 특징으로 하는 스핀 온 하드마스크 조성물.
- 제1항, 제6항 내지 제13항 중 어느 한 항에 따른 스핀 온 하드마스크 조성물을 스핀 도포를 통해 피식각층 상부에 도포하는 공정 및 베이크 공정을 진행하여 하드마스크 층을 형성시키는 패턴화 방법.
- 제14항에 있어서, 상기 베이크 공정은 150℃ 내지 400℃의 온도에서 1 내지 5분간 진행하여 하드마스크 층을 형성시키는 패턴화 방법.
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US17/442,908 US12105421B2 (en) | 2019-04-09 | 2020-03-25 | Highly thick spin-on-carbon hard mask composition and patterning method using same |
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