KR20210059791A - 루테늄 전구체를 사용하는 peald 공정 - Google Patents
루테늄 전구체를 사용하는 peald 공정 Download PDFInfo
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- KR20210059791A KR20210059791A KR1020217014314A KR20217014314A KR20210059791A KR 20210059791 A KR20210059791 A KR 20210059791A KR 1020217014314 A KR1020217014314 A KR 1020217014314A KR 20217014314 A KR20217014314 A KR 20217014314A KR 20210059791 A KR20210059791 A KR 20210059791A
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- KR
- South Korea
- Prior art keywords
- cyclohexadiene
- ruthenium
- cymene
- diene
- deposition
- Prior art date
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- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 title claims abstract description 127
- 229910052707 ruthenium Inorganic materials 0.000 title claims abstract description 127
- 239000002243 precursor Substances 0.000 title claims abstract description 111
- 238000000034 method Methods 0.000 title claims abstract description 72
- 230000008569 process Effects 0.000 title claims abstract description 24
- 238000000151 deposition Methods 0.000 claims abstract description 128
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 22
- 239000003446 ligand Substances 0.000 claims abstract description 22
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000000231 atomic layer deposition Methods 0.000 claims abstract description 17
- 125000003118 aryl group Chemical group 0.000 claims abstract description 10
- 125000002897 diene group Chemical group 0.000 claims abstract description 10
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 9
- MGNZXYYWBUKAII-UHFFFAOYSA-N cyclohexa-1,3-diene Chemical compound C1CC=CC=C1 MGNZXYYWBUKAII-UHFFFAOYSA-N 0.000 claims description 120
- 239000000758 substrate Substances 0.000 claims description 70
- 239000007789 gas Substances 0.000 claims description 59
- HGCIXCUEYOPUTN-UHFFFAOYSA-N cis-cyclohexene Natural products C1CCC=CC1 HGCIXCUEYOPUTN-UHFFFAOYSA-N 0.000 claims description 55
- 239000011261 inert gas Substances 0.000 claims description 33
- HFPZCAJZSCWRBC-UHFFFAOYSA-N p-cymene Chemical compound CC(C)C1=CC=C(C)C=C1 HFPZCAJZSCWRBC-UHFFFAOYSA-N 0.000 claims description 32
- 229930007927 cymene Natural products 0.000 claims description 28
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 24
- 229910052739 hydrogen Inorganic materials 0.000 claims description 17
- 239000001257 hydrogen Substances 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 14
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 13
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 11
- -1 Here Chemical compound 0.000 claims description 10
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 9
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- RWGFKTVRMDUZSP-UHFFFAOYSA-N cumene Chemical compound CC(C)C1=CC=CC=C1 RWGFKTVRMDUZSP-UHFFFAOYSA-N 0.000 claims description 8
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- 239000001892 1-methylcyclohexa-1,3-diene Substances 0.000 claims description 2
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- AFZZYIJIWUTJFO-UHFFFAOYSA-N 1,3-diethylbenzene Chemical compound CCC1=CC=CC(CC)=C1 AFZZYIJIWUTJFO-UHFFFAOYSA-N 0.000 claims 2
- 125000006273 (C1-C3) alkyl group Chemical group 0.000 claims 1
- SBDSTQIONVNWTA-UHFFFAOYSA-N C1=CCC=CC1.C1(=CC=C(C=C1)C)C(C)C Chemical compound C1=CCC=CC1.C1(=CC=C(C=C1)C)C(C)C SBDSTQIONVNWTA-UHFFFAOYSA-N 0.000 claims 1
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- SJYNFBVQFBRSIB-UHFFFAOYSA-N norbornadiene Chemical compound C1=CC2C=CC1C2 SJYNFBVQFBRSIB-UHFFFAOYSA-N 0.000 description 1
- BKIMMITUMNQMOS-UHFFFAOYSA-N normal nonane Natural products CCCCCCCCC BKIMMITUMNQMOS-UHFFFAOYSA-N 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000004792 oxidative damage Effects 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000004151 rapid thermal annealing Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- YAYGSLOSTXKUBW-UHFFFAOYSA-N ruthenium(2+) Chemical compound [Ru+2] YAYGSLOSTXKUBW-UHFFFAOYSA-N 0.000 description 1
- BIXNGBXQRRXPLM-UHFFFAOYSA-K ruthenium(3+);trichloride;hydrate Chemical compound O.Cl[Ru](Cl)Cl BIXNGBXQRRXPLM-UHFFFAOYSA-K 0.000 description 1
- PWRYKCFNWWHKLP-UHFFFAOYSA-N ruthenium;hydrate Chemical compound O.[Ru] PWRYKCFNWWHKLP-UHFFFAOYSA-N 0.000 description 1
- 238000004626 scanning electron microscopy Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 238000002207 thermal evaporation Methods 0.000 description 1
- 150000005671 trienes Chemical class 0.000 description 1
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
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- C23C16/45525—Atomic layer deposition [ALD]
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Abstract
Description
도 2는 280℃에서 다수의 침착 사이클 후 Cu, TaN, TiN, WCN, WN 및 SiO2 상의 X선 형광 분광법 (XRF)에 의해 측정시의 Ru 코팅 두께 (Å)의 증가를 나타내는 그래프이다.
도 3은 WCN, WN 및 SiO2 기판 상의 두께 (Å)에 기반한 Ru 코팅의 저항률을 나타내는 그래프이며, 이는 Ru 필름 두께 < 5 nm에서 낮은 전기 저항률을 예증한다.
도 4a는 고전력 Ru 침착 공정을 사용하여 형성된 SiO2 상의 침착시 고밀도 Ru 코팅의 주사 전자 현미경 사진 (SEM) 이미지이다.
도 4b는 고전력 Ru 침착 공정을 사용하여 형성된 SiO2 상의 RTH (수소를 사용한 급속 열 어닐링) 어닐링된 고밀도 Ru 코팅의 주사 전자 현미경 사진 (SEM) 이미지이다.
도 4c는 고전력 Ru 침착 공정을 사용하여 형성된 WCN 상의 침착시 고밀도 Ru 코팅의 주사 전자 현미경 사진 (SEM) 이미지이다.
도 4d는 고전력 Ru 침착 공정을 사용하여 형성된 WCN 상의 RTH 어닐링된 침착시 고밀도 Ru 코팅의 주사 전자 현미경 사진 (SEM) 이미지이다.
도 5는 침착시 및 400℃ RTH 어닐링 후 Ru 코팅의 X선 회절 (XRD) 그래프이다.
도 6은 다수의 침착 사이클 후 Cu, TaN, TiN, WCN, WN 및 SiO2 상의 X선 형광 분광법 (XRF)에 의해 측정시의 Ru 코팅 두께 (Å)의 증가를 나타내는 그래프이다.
도 7은 H2 PEALD를 사용하여 280℃에서 침착된 Ru 박막이 O2 열 CVD를 사용하여 침착된 것들보다 더 낮은 저항률을 가짐을 나타내는 그래프이다.
도 8은 H2 플라즈마를 사용하여 WCN/WN 상에 침착된 Ru 필름이 NH3 플라즈마를 사용하여 침착된 것들보다 더 낮은 저항률을 가짐을 나타낸다.
도 9는 다수의 침착 사이클 후 Cu, TaN, TiN, WCN, WN 및 SiO2 상의 X선 형광 분광법 (XRF)에 의해 측정시의 Ru 코팅 두께 (Å)의 증가를 나타내는 그래프이다 (비교예).
도 10은 200 W NH3 플라즈마에 의한 더 폭넓은 XRD 피크를 나타내는 그래프이다.
도 11은 PEALD 시스템의 도식이다.
도 12a는 200 W Ru 침착 공정을 사용하여 형성된 SiO2 상의 침착시 다공성 Ru 코팅의 주사 전자 현미경 사진 (SEM) 이미지이다.
도 12b는 200 W Ru 침착 공정을 사용하여 형성된 SiO2 상의 RTH 어닐링된 다공성 Ru 코팅의 주사 전자 현미경 사진 (SEM) 이미지이다.
도 12c는 200 W Ru 침착 공정을 사용하여 형성된 SiO2 상의 RTH 어닐링된 다공성 Ru 코팅의 주사 전자 현미경 사진 (SEM) 탑-다운(top-down) 이미지이며, 이는 어닐링으로부터의 수축으로 인한 Ru 필름의 심각한 균열을 나타낸다.
Claims (20)
- (a) 기판 표면에 화학식 I: RARBRu(0) (여기서, RA는 아릴 기-함유 리간드이고, RB는 디엔 기-함유 리간드임)의 루테늄 전구체를 제공하는 단계; 및
(b) 200 W 초과의 전력을 사용하여 기판 표면에 환원 플라즈마(reducing plasma)를 제공하는 단계
를 포함하는, 루테늄의 침착 방법이며,
여기서, 플라즈마 강화 원자층 침착(plasma enhanced atomic layer deposition; PEALD) 공정으로 기판 상에 루테늄이 침착되는 것인 방법. - 제2항에 있어서, R1-R6 중 1, 2 또는 3개가 C1-C3 알킬로부터 선택되며, 나머지 R1-R6은 H인 방법.
- 제2항에 있어서, R7이 0 (공유 결합)이고, R8 및 R9가 하나 이상의 고리 구조를 형성하는 것인 방법.
- 제1항에 있어서, RA 및 RB가 헤테로원자를 전혀 포함하지 않는 것인 방법.
- 제1항에 있어서, 루테늄 전구체가 12 내지 20개, 14 내지 18개, 또는 15 내지 17개 범위의 총 탄소 원자 양을 갖는 것인 방법.
- 제1항에 있어서, 루테늄 전구체가 16 내지 28개의 범위, 19 내지 25개의 범위, 또는 20-24개 범위의 총 수소 원자 양을 갖는 것인 방법.
- 제1항에 있어서, RA가 2개의 상이한 알킬 기를 갖는 디-알킬벤젠인 방법.
- 제1항에 있어서, RA가 톨루엔, 크실렌, 에틸벤젠, 쿠멘 및 시멘으로 이루어진 군으로부터 선택된 것인 방법.
- 제1항에 있어서, RB가 시클릭 디엔인 방법.
- 제1항에 있어서, RB가 공액 디엔인 방법.
- 제1항에 있어서, RB가 1,3- 또는 1,4-시클로헥사디엔 또는 알킬시클로헥사디엔인 방법.
- 제1항에 있어서, 루테늄 전구체가 (시멘)(1,3-시클로헥사디엔)Ru(0), (시멘)(1,4-시클로헥사디엔)Ru(0), (시멘)(1-메틸시클로헥사-1,3-디엔)Ru(0), (시멘)(2-메틸시클로헥사-1,3-디엔)Ru(0), (시멘)(3-메틸시클로헥사-1,3-디엔)Ru(0), (시멘)(4-메틸시클로헥사-1,3-디엔)Ru(0), (시멘)(5-메틸시클로헥사-1,3-디엔)Ru(0), (시멘)(6-메틸시클로헥사-1,3-디엔)Ru(0), (시멘)(1-메틸시클로헥사-1,4-디엔)Ru(0), (시멘)(2-메틸시클로헥사-1,4-디엔)Ru(0), (시멘)(3-메틸시클로헥사-1,4-디엔)Ru(0), (시멘)(4-메틸시클로헥사-1,4-디엔)Ru(0), (시멘)(5-메틸시클로헥사-1,4-디엔)Ru(0), 및 (시멘)(6-메틸시클로헥사-1,4-디엔)Ru(0)로 이루어진 군으로부터 선택된 것인 방법.
- 제1항에 있어서, 루테늄 전구체가 (벤젠)(1,3-시클로헥사디엔)Ru(0), (톨루엔)(1,3-시클로헥사디엔)Ru(0), (에틸벤젠)(1,3-시클로헥사디엔)Ru(0), (1,2-크실렌)(1,3-시클로헥사디엔)Ru(0), (1,3-크실렌)(1,3-시클로헥사디엔)Ru(0), (1,4-크실렌)(1,3-시클로헥사디엔)Ru(0), (p-시멘)(1,3-시클로헥사디엔)Ru(0), (o-시멘)(1,3-시클로헥사디엔)Ru(0), (m-시멘)(1,3-시클로헥사디엔)Ru(0), (쿠멘)(1,3-시클로헥사디엔)Ru(0), (n-프로필벤젠)(1,3-시클로헥사디엔)Ru(0), (m-에틸톨루엔)(1,3-시클로헥사디엔)Ru(0), (p-에틸톨루엔)(1,3-시클로헥사디엔)Ru(0), (o-에틸톨루엔)(1,3-시클로헥사디엔)Ru(0), (1,3,5-트리메틸벤젠)(1,3-시클로헥사디엔)Ru(0), (1,2,3-트리메틸벤젠)(1,3-시클로헥사디엔)Ru(0), (tert-부틸벤젠)(1,3-시클로헥사디엔)Ru(0), (이소부틸벤젠)(1,3-시클로헥사디엔)Ru(0), (sec-부틸벤젠)(1,3-시클로헥사디엔)Ru(0), (인단)(1,3-시클로헥사디엔)Ru(0), (1,2-디에틸벤젠)(1,3-시클로헥사디엔)Ru(0), (1,3-디에틸벤젠)(1,3-시클로헥사디엔)Ru(0), (1,4-디에틸벤젠)(1,3-시클로헥사디엔)Ru(0), (1-메틸-4-프로필벤젠)(1,3-시클로헥사디엔)Ru(0), 및 (1,4-디메틸-2-에틸벤젠)(1,3-시클로헥사디엔)Ru(0)로 이루어진 군으로부터 선택된 것인 방법.
- 제1항에 있어서, 단계 (a)에서 루테늄 전구체가, 헬륨, 아르곤, 크립톤, 네온 및 크세논으로부터 선택된 불활성 가스를 포함하는 가스 스트림 유동 내에서 제공되는 것인 방법.
- 제1항에 있어서, 단계 (a)에서 루테늄 전구체가 250-425 sccm의 범위, 300-375 sccm의 범위, 또는 320-350 sccm 범위의 유량으로 가스 스트림 유동 내에서 제공되는 것인 방법.
- 제1항에 있어서, 단계 (a)에서 루테늄 전구체가 125℃ 이하, 또는 80-120℃ 범위의 온도에서 제공되는 것인 방법.
- 제1항에 있어서, 단계 (a)에서 루테늄 전구체가 1-5 Torr의 범위, 2-4 Torr의 범위, 또는 2.5-3.5 Torr 범위의 공정 압력에서 제공되는 것인 방법.
- 제1항에 있어서, 환원 플라즈마가 수소 H2 (수소), NH3 (암모니아), 또는 이들의 혼합물을 포함하는 것인 방법.
- 화학식 RARBRu(0) (여기서, RA는 아릴 기-함유 리간드이고, RB는 디엔 기-함유 리간드임)의 루테늄 전구체를 포함하는 루테늄 소스(source); 및
환원 플라즈마를 제공할 수 있는 플라즈마 공급 소스; 및
플라즈마에 200 W 초과의 전력을 제공할 수 있는 전력 소스
를 포함하는, 플라즈마 강화 원자층 침착 (PEALD) 시스템.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US201862767967P | 2018-11-15 | 2018-11-15 | |
US62/767,967 | 2018-11-15 | ||
PCT/US2019/060068 WO2020101974A1 (en) | 2018-11-15 | 2019-11-06 | Peald processes using ruthenium precursor |
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KR20210059791A true KR20210059791A (ko) | 2021-05-25 |
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US (1) | US20200157680A1 (ko) |
JP (1) | JP7345546B2 (ko) |
KR (1) | KR20210059791A (ko) |
CN (1) | CN113039309A (ko) |
TW (1) | TWI732345B (ko) |
WO (1) | WO2020101974A1 (ko) |
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WO2024090945A1 (ko) * | 2022-10-25 | 2024-05-02 | 주성엔지니어링(주) | 반도체 소자의 전극 형성 방법 |
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KR102686799B1 (ko) | 2018-11-08 | 2024-07-22 | 엔테그리스, 아이엔씨. | 루테늄 전구체 및 환원 가스를 사용하는 화학 증착 공정 |
WO2022002809A1 (en) * | 2020-07-01 | 2022-01-06 | Merck Patent Gmbh | Methods of forming ruthenium-containing films without a co-reactant |
CN118786240A (zh) * | 2022-02-03 | 2024-10-15 | 恩特格里斯公司 | 选择性沉积高导电性金属膜的方法 |
US20230287022A1 (en) * | 2022-03-14 | 2023-09-14 | Applied Materials, Inc. | Non-Halide Oxygen-Free Organometallic Precursors for ALD/CVD of Metallization |
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US6429127B1 (en) * | 2000-06-08 | 2002-08-06 | Micron Technology, Inc. | Methods for forming rough ruthenium-containing layers and structures/methods using same |
US20060177601A1 (en) * | 2005-02-10 | 2006-08-10 | Hyung-Sang Park | Method of forming a ruthenium thin film using a plasma enhanced atomic layer deposition apparatus and the method thereof |
US20070077750A1 (en) * | 2005-09-06 | 2007-04-05 | Paul Ma | Atomic layer deposition processes for ruthenium materials |
US20080124484A1 (en) * | 2006-11-08 | 2008-05-29 | Asm Japan K.K. | Method of forming ru film and metal wiring structure |
US20080152793A1 (en) * | 2006-12-22 | 2008-06-26 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitaion Des Procedes Georges Claude | Method for the deposition of a ruthenium containing film with aryl and diene containing complexes |
KR100945503B1 (ko) * | 2007-03-28 | 2010-03-09 | 주식회사 하이닉스반도체 | 반도체 소자의 금속배선 형성방법 |
JP5202905B2 (ja) * | 2007-08-22 | 2013-06-05 | 東ソー株式会社 | ルテニウム化合物、その製造方法、ルテニウム含有薄膜及びその製造方法 |
KR100958332B1 (ko) * | 2008-01-28 | 2010-05-18 | (주)디엔에프 | 신규 루테늄 화합물 및 이를 이용한 박막 증착 방법 |
DE102009053392A1 (de) * | 2009-11-14 | 2011-06-22 | Umicore AG & Co. KG, 63457 | Verfahren zur Herstellung von Ru(0) Olefin-Komplexen |
US20130089680A1 (en) * | 2011-10-07 | 2013-04-11 | American Air Liquide, Inc. | Plasma-enhanced deposition of ruthenium-containing films for various applications using amidinate ruthenium precursors |
US10731250B2 (en) * | 2017-06-06 | 2020-08-04 | Lam Research Corporation | Depositing ruthenium layers in interconnect metallization |
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2019
- 2019-11-06 CN CN201980074867.2A patent/CN113039309A/zh active Pending
- 2019-11-06 WO PCT/US2019/060068 patent/WO2020101974A1/en active Application Filing
- 2019-11-06 US US16/675,845 patent/US20200157680A1/en not_active Abandoned
- 2019-11-06 KR KR1020217014314A patent/KR20210059791A/ko not_active IP Right Cessation
- 2019-11-06 JP JP2021525796A patent/JP7345546B2/ja active Active
- 2019-11-15 TW TW108141571A patent/TWI732345B/zh active
Cited By (1)
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WO2024090945A1 (ko) * | 2022-10-25 | 2024-05-02 | 주성엔지니어링(주) | 반도체 소자의 전극 형성 방법 |
Also Published As
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JP2022507300A (ja) | 2022-01-18 |
TWI732345B (zh) | 2021-07-01 |
CN113039309A (zh) | 2021-06-25 |
WO2020101974A1 (en) | 2020-05-22 |
JP7345546B2 (ja) | 2023-09-15 |
US20200157680A1 (en) | 2020-05-21 |
TW202026302A (zh) | 2020-07-16 |
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