KR20170066225A - 기상-증착된 금속 옥사이드-함유 하드마스크들의 euv 포토패터닝 - Google Patents
기상-증착된 금속 옥사이드-함유 하드마스크들의 euv 포토패터닝 Download PDFInfo
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- 229910044991 metal oxide Inorganic materials 0.000 title claims abstract description 83
- 150000004706 metal oxides Chemical class 0.000 title claims abstract description 83
- 238000000034 method Methods 0.000 claims abstract description 58
- 230000008021 deposition Effects 0.000 claims abstract description 35
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 15
- 238000000206 photolithography Methods 0.000 claims abstract description 8
- 238000000059 patterning Methods 0.000 claims description 54
- 238000000151 deposition Methods 0.000 claims description 42
- 239000000758 substrate Substances 0.000 claims description 32
- 239000004065 semiconductor Substances 0.000 claims description 22
- 238000011161 development Methods 0.000 claims description 16
- 239000002243 precursor Substances 0.000 claims description 16
- 238000001900 extreme ultraviolet lithography Methods 0.000 claims description 15
- 229920002120 photoresistant polymer Polymers 0.000 claims description 12
- 238000012546 transfer Methods 0.000 claims description 12
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 7
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 7
- 229910001887 tin oxide Inorganic materials 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000006471 dimerization reaction Methods 0.000 claims description 6
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 5
- 239000001569 carbon dioxide Substances 0.000 claims description 5
- 230000005855 radiation Effects 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000005137 deposition process Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- KWTSZCJMWHGPOS-UHFFFAOYSA-M chloro(trimethyl)stannane Chemical compound C[Sn](C)(C)Cl KWTSZCJMWHGPOS-UHFFFAOYSA-M 0.000 claims description 3
- PKKGKUDPKRTKLJ-UHFFFAOYSA-L dichloro(dimethyl)stannane Chemical compound C[Sn](C)(Cl)Cl PKKGKUDPKRTKLJ-UHFFFAOYSA-L 0.000 claims description 3
- ABVJZPIEOUSBES-UHFFFAOYSA-N n-[bis(dimethylamino)-methylstannyl]-n-methylmethanamine Chemical compound CN(C)[Sn](C)(N(C)C)N(C)C ABVJZPIEOUSBES-UHFFFAOYSA-N 0.000 claims description 3
- HQFPMGPCIKGRON-UHFFFAOYSA-N n-methyl-n-trimethylstannylmethanamine Chemical compound CN(C)[Sn](C)(C)C HQFPMGPCIKGRON-UHFFFAOYSA-N 0.000 claims description 3
- YFRLQYJXUZRYDN-UHFFFAOYSA-K trichloro(methyl)stannane Chemical compound C[Sn](Cl)(Cl)Cl YFRLQYJXUZRYDN-UHFFFAOYSA-K 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 125000004183 alkoxy alkyl group Chemical group 0.000 claims 1
- 125000001188 haloalkyl group Chemical group 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 29
- 238000007740 vapor deposition Methods 0.000 abstract description 11
- 239000010408 film Substances 0.000 description 59
- 235000012431 wafers Nutrition 0.000 description 13
- 210000002381 plasma Anatomy 0.000 description 12
- 238000001459 lithography Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
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- 238000005530 etching Methods 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000000295 emission spectrum Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
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- 239000012530 fluid Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000010943 off-gassing Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
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- G03F7/70991—Connection with other apparatus, e.g. multiple exposure stations, particular arrangement of exposure apparatus and pre-exposure and/or post-exposure apparatus; Shared apparatus, e.g. having shared radiation source, shared mask or workpiece stage, shared base-plate; Utilities, e.g. cable, pipe or wireless arrangements for data, power, fluids or vacuum
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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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
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- 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
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- 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
도 2는 여기된 Sn 드롭릿들 (droplets) 을 사용하는 EUV 소스의 방출 스펙트럼을 제공한다.
도 3은 샘플 전구체들 및 연관된 반응들을 포함한, 개시된 증착, 노출/패터닝 및 현상 프로세스들의 실시예들에 대한 화학 반응을 예시한다.
도 4는 진공-통합된 장치에서 본 명세서에 기술된 프로세스들의 구현에 적합한, 진공 이송 모듈과 인터페이싱하는 기상 증착 및 패터닝 모듈들을 가진 반도체 프로세스 클러스터 아키텍처를 도시한다.
Claims (20)
- 금속 옥사이드-함유 하드마스크를 형성하는 방법에 있어서,
기상-기반 증착 프로세스에 의해 반도체 기판 상에 EUV (extreme ultraviolet) -민감성 금속 옥사이드-함유 막을 증착하는 단계;
상기 금속 옥사이드-함유 막 내에 패턴을 형성하도록 상기 금속 옥사이드-함유 막의 일부분을 EUV에 노출시키는 단계; 및
상기 금속 옥사이드-함유 하드마스크를 형성하기 위해서 상기 노출된 부분 또는 노출되지 않은 부분 중 하나를 제거하도록 상기 금속 옥사이드-함유 막 내의 상기 패턴을 현상하는 단계를 포함하는, 금속 옥사이드-함유 하드마스크를 형성하는 방법. - 제 1 항에 있어서,
상기 증착은 CVD 또는 ALD에 의해 수행되는, 금속 옥사이드-함유 하드마스크를 형성하는 방법. - 제 2 항에 있어서,
상기 금속 옥사이드-함유 막은 광민감성 금속유기 옥사이드 막인, 금속 옥사이드-함유 하드마스크를 형성하는 방법. - 제 3 항에 있어서,
상기 금속유기 옥사이드는 유기주석 옥사이드인, 금속 옥사이드-함유 하드마스크를 형성하는 방법. - 제 4 항에 있어서,
상기 증착 단계는 할로 알킬 Sn, 알콕시 알킬 Sn 및 아미도 알킬 Sn으로 구성된 그룹으로부터 선택된 유기주석 옥사이드 증착 전구체들을 포함하는, 금속 옥사이드-함유 하드마스크를 형성하는 방법. - 제 5 항에 있어서,
상기 증착 단계는 트리메틸 주석 클로라이드, 디메틸주석 디클로라이드, 메틸주석 트리클로라이드, 트리스(디메틸아미노)메틸 주석(IV) 및 (디메틸아미노)트리메틸 주석(IV)으로 구성된 그룹으로부터 선택된 증착 전구체들을 포함하는, 금속 옥사이드-함유 하드마스크를 형성하는 방법. - 제 4 항에 있어서,
상기 증착 단계는 RF 플라즈마 내에서 이산화탄소와 상기 유기주석 옥사이드의 반응을 포함하는, 금속 옥사이드-함유 하드마스크를 형성하는 방법. - 제 7 항에 있어서,
상기 증착된 유기주석 옥사이드 막은 RF 플라즈마 내에서 이산화탄소와 Sn(Cl)3CH3의 CVD에 의해 형성된 CH3Sn(SnO)3을 포함하는, 금속 옥사이드-함유 하드마스크를 형성하는 방법. - 제 4 항에 있어서,
상기 EUV 노출은 상기 증착된 유기주석 옥사이드 막의 상기 노출된 부분에서 이합체화 반응을 유발하는, 금속 옥사이드-함유 하드마스크를 형성하는 방법. - 제 9 항에 있어서,
상기 증착된 유기주석 옥사이드 막은 CH3Sn(SnO)3을 포함하고 그리고 EUV 노출시 상기 이합체화는 Sn2((SnO)3)2를 생성하는, 금속 옥사이드-함유 하드마스크를 형성하는 방법. - 제 10 항에 있어서,
상기 현상시, 상기 Sn2((SnO)3)2 노출된 부분은 제거되는, 금속 옥사이드-함유 하드마스크를 형성하는 방법. - 제 11 항에 있어서,
상기 Sn2((SnO)3)2 노출된 부분은 상기 현상시 고온 에탄올 및 물에 의해 제거되는, 금속 옥사이드-함유 하드마스크를 형성하는 방법. - 제 12 항에 있어서,
상기 패턴 현상을 수행하도록 상기 기판은 진공 환경 외부로 이송되는, 금속 옥사이드-함유 하드마스크를 형성하는 방법. - 제 1 항에 있어서,
상기 노출 단계는 포토레지스트를 사용하지 않고, 진공 환경에서 직접적으로 EUV 노출에 의한 상기 금속 옥사이드-함유 막의 패터닝 단계, 뒤이어 상기 금속 옥사이드-함유 하드마스크를 형성하기 위한 현상 단계를 제공하는, 금속 옥사이드-함유 하드마스크를 형성하는 방법. - 제 1 항에 있어서,
상기 반도체 기판은 부분적으로-형성된 집적 회로들을 포함한 실리콘 웨이퍼이고, 그리고
상기 증착 전에, 금속 옥사이드-함유 막 증착을 위해 제 1 반응기 챔버 내에 상기 반도체 기판을 제공하는 단계; 및
상기 증착 후에, 패터닝을 위해 진공 하에서 리소그래피 프로세싱 챔버로 상기 기판을 이송하는 단계를 더 포함하는, 금속 옥사이드-함유 하드마스크를 형성하는 방법. - 금속 옥사이드-함유 하드마스크 형성을 수행하기 위한 장치에 있어서,
상기 장치는,
금속 옥사이드-함유 막 기상-기반 증착 모듈;
금속 옥사이드-함유 막 패터닝 모듈;
상기 증착 모듈과 상기 패터닝 모듈을 연결하는 진공 이송 모듈; 및
금속 옥사이드-함유 하드마스크 형성을 수행하기 위한 인스트럭션들을 포함한 제어기를 포함하고,
상기 인스트럭션들은,
상기 금속 옥사이드-함유 막 기상-기반 증착 모듈 내에서, 기상-기반 증착 프로세스에 의해 반도체 기판 상에 EUV-민감성 금속 옥사이드-함유 막을 증착하기 위한 코드;
진공 하에서 상기 기판을 상기 금속 옥사이드-함유 막 패터닝 모듈로 이송하기 위한 코드;
상기 금속 옥사이드-함유 막 패터닝 모듈 내에서, 진공 환경에서 직접적으로 EUV 노출에 의해 상기 금속 옥사이드-함유 막을 패터닝하기 위한 코드; 및
상기 금속 옥사이드-함유 하드마스크를 형성하도록 상기 패턴을 현상하기 위한 코드를 포함하는, 금속 옥사이드-함유 하드마스크 형성을 수행하기 위한 장치. - 제 16 항에 있어서,
상기 증착 모듈은 광민감성 유기주석 옥사이드 막을 기상-증착하기 위한 반응기 챔버를 포함하고; 그리고
상기 패터닝 모듈은 30 ㎚ 이하의 파장 복사의 소스를 가진 포토리소그래피 툴을 포함하는, 금속 옥사이드-함유 하드마스크 형성을 수행하기 위한 장치. - 제 17 항에 있어서,
상기 증착 모듈은 PECVD 툴인, 금속 옥사이드-함유 하드마스크 형성을 수행하기 위한 장치. - 제 18 항에 있어서,
상기 패터닝 모듈은 EUV 리소그래피 툴인, 금속 옥사이드-함유 하드마스크 형성을 수행하기 위한 장치. - 제 19 항에 있어서,
상기 인스트럭션들은 상기 패턴 현상을 수행하도록 상기 기판을 상기 EUV 리소그래피 툴 외부로 이송하기 위한 코드를 더 포함하는, 금속 옥사이드-함유 하드마스크 형성을 수행하기 위한 장치.
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JP7282830B2 (ja) | 2023-05-29 |
JP2017116923A (ja) | 2017-06-29 |
JP2021165842A (ja) | 2021-10-14 |
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KR102779709B1 (ko) | 2025-03-12 |
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TW202134467A (zh) | 2021-09-16 |
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