KR101177576B1 - 구리 금속배선을 위한 통합식 질화탄탈 원자층 증착 방법및 이를 위한 장치 - Google Patents
구리 금속배선을 위한 통합식 질화탄탈 원자층 증착 방법및 이를 위한 장치 Download PDFInfo
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- KR101177576B1 KR101177576B1 KR1020057023971A KR20057023971A KR101177576B1 KR 101177576 B1 KR101177576 B1 KR 101177576B1 KR 1020057023971 A KR1020057023971 A KR 1020057023971A KR 20057023971 A KR20057023971 A KR 20057023971A KR 101177576 B1 KR101177576 B1 KR 101177576B1
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- tantalum
- layer
- deposition
- tantalum nitride
- processing chamber
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- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 title claims abstract description 104
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims description 39
- 239000010949 copper Substances 0.000 title claims description 38
- 229910052802 copper Inorganic materials 0.000 title claims description 38
- 238000001465 metallisation Methods 0.000 title description 4
- 230000010354 integration Effects 0.000 title 1
- 229910052715 tantalum Inorganic materials 0.000 claims abstract description 99
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims abstract description 99
- 238000000034 method Methods 0.000 claims abstract description 87
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- 238000000151 deposition Methods 0.000 claims abstract description 80
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- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 38
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 32
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 22
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- 229910021529 ammonia Inorganic materials 0.000 claims description 11
- -1 bis (cyclopentadienyl) tantalum trihydride Chemical compound 0.000 claims description 11
- 238000005229 chemical vapour deposition Methods 0.000 claims description 11
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- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 9
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- 239000010937 tungsten Substances 0.000 claims description 9
- 239000001257 hydrogen Substances 0.000 claims description 8
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- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 7
- 239000001307 helium Substances 0.000 claims description 7
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 6
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 claims description 6
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 229910017052 cobalt Inorganic materials 0.000 claims description 3
- 239000010941 cobalt Substances 0.000 claims description 3
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- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 3
- MTHYQSRWPDMAQO-UHFFFAOYSA-N diethylazanide;tantalum(5+) Chemical compound CCN(CC)[Ta](N(CC)CC)(N(CC)CC)(N(CC)CC)N(CC)CC MTHYQSRWPDMAQO-UHFFFAOYSA-N 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
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- BKVIYDNLLOSFOA-UHFFFAOYSA-N thallium Chemical compound [Tl] BKVIYDNLLOSFOA-UHFFFAOYSA-N 0.000 claims description 3
- DIIIISSCIXVANO-UHFFFAOYSA-N 1,2-Dimethylhydrazine Chemical compound CNNC DIIIISSCIXVANO-UHFFFAOYSA-N 0.000 claims description 2
- FDRCQGDMDFRXAU-UHFFFAOYSA-N C(C)(C)(C)N=[Ta](NC(CC)CC)(NC(CC)CC)NC(CC)CC Chemical compound C(C)(C)(C)N=[Ta](NC(CC)CC)(NC(CC)CC)NC(CC)CC FDRCQGDMDFRXAU-UHFFFAOYSA-N 0.000 claims description 2
- YYKBKTFUORICGA-UHFFFAOYSA-N CCN(CC)[Ta](=NC(C)(C)C)(N(CC)CC)N(CC)CC Chemical compound CCN(CC)[Ta](=NC(C)(C)C)(N(CC)CC)N(CC)CC YYKBKTFUORICGA-UHFFFAOYSA-N 0.000 claims description 2
- UCSVJZQSZZAKLD-UHFFFAOYSA-N ethyl azide Chemical compound CCN=[N+]=[N-] UCSVJZQSZZAKLD-UHFFFAOYSA-N 0.000 claims description 2
- HDZGCSFEDULWCS-UHFFFAOYSA-N monomethylhydrazine Chemical compound CNN HDZGCSFEDULWCS-UHFFFAOYSA-N 0.000 claims description 2
- HKOOXMFOFWEVGF-UHFFFAOYSA-N phenylhydrazine Chemical compound NNC1=CC=CC=C1 HKOOXMFOFWEVGF-UHFFFAOYSA-N 0.000 claims description 2
- 229940067157 phenylhydrazine Drugs 0.000 claims description 2
- MUQNAPSBHXFMHT-UHFFFAOYSA-N tert-butylhydrazine Chemical compound CC(C)(C)NN MUQNAPSBHXFMHT-UHFFFAOYSA-N 0.000 claims description 2
- RKRNSVXVYPZXPX-UHFFFAOYSA-N CN(C)[Ta](N(C)C)(N(C)C)(N(C)C)N(C)C.CN(C)[Ta](N(C)C)(N(C)C)(N(C)C)N(C)C Chemical compound CN(C)[Ta](N(C)C)(N(C)C)(N(C)C)N(C)C.CN(C)[Ta](N(C)C)(N(C)C)(N(C)C)N(C)C RKRNSVXVYPZXPX-UHFFFAOYSA-N 0.000 claims 1
- FBNHWOBJTUBDME-UHFFFAOYSA-N CN(C)[Ta](N(C)C)(N(C)C)=NC(C)(C)C Chemical compound CN(C)[Ta](N(C)C)(N(C)C)=NC(C)(C)C FBNHWOBJTUBDME-UHFFFAOYSA-N 0.000 claims 1
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- VSLPMIMVDUOYFW-UHFFFAOYSA-N dimethylazanide;tantalum(5+) Chemical compound [Ta+5].C[N-]C.C[N-]C.C[N-]C.C[N-]C.C[N-]C VSLPMIMVDUOYFW-UHFFFAOYSA-N 0.000 description 10
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- 229910000881 Cu alloy Inorganic materials 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 230000001186 cumulative effect Effects 0.000 description 4
- 238000009832 plasma treatment Methods 0.000 description 4
- 239000000376 reactant Substances 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- WYEMLYFITZORAB-UHFFFAOYSA-N boscalid Chemical compound C1=CC(Cl)=CC=C1C1=CC=CC=C1NC(=O)C1=CC=CN=C1Cl WYEMLYFITZORAB-UHFFFAOYSA-N 0.000 description 3
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- 238000000992 sputter etching Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229940126062 Compound A Drugs 0.000 description 1
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- 239000005751 Copper oxide Substances 0.000 description 1
- NLDMNSXOCDLTTB-UHFFFAOYSA-N Heterophylliin A Natural products O1C2COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC2C(OC(=O)C=2C=C(O)C(O)=C(O)C=2)C(O)C1OC(=O)C1=CC(O)=C(O)C(O)=C1 NLDMNSXOCDLTTB-UHFFFAOYSA-N 0.000 description 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- 239000007983 Tris buffer Substances 0.000 description 1
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- 229910000431 copper oxide Inorganic materials 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
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- 125000002147 dimethylamino group Chemical group [H]C([H])([H])N(*)C([H])([H])[H] 0.000 description 1
- ALKZAGKDWUSJED-UHFFFAOYSA-N dinuclear copper ion Chemical compound [Cu].[Cu] ALKZAGKDWUSJED-UHFFFAOYSA-N 0.000 description 1
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- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
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- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
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- 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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76841—Barrier, adhesion or liner layers
- H01L21/76843—Barrier, adhesion or liner layers formed in openings in a dielectric
- H01L21/76844—Bottomless liners
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- 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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76801—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing
- H01L21/76802—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing by forming openings in dielectrics
- H01L21/76805—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing by forming openings in dielectrics the opening being a via or contact hole penetrating the underlying conductor
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- H—ELECTRICITY
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- 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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76841—Barrier, adhesion or liner layers
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- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76841—Barrier, adhesion or liner layers
- H01L21/76853—Barrier, adhesion or liner layers characterized by particular after-treatment steps
- H01L21/76861—Post-treatment or after-treatment not introducing additional chemical elements into the layer
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- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
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- 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
- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
- H01L21/283—Deposition of conductive or insulating materials for electrodes conducting electric current
- H01L21/285—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation
- H01L21/28506—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers
- H01L21/28512—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic Table
- H01L21/2855—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic Table by physical means, e.g. sputtering, evaporation
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- H—ELECTRICITY
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- 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
- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
- H01L21/283—Deposition of conductive or insulating materials for electrodes conducting electric current
- H01L21/285—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation
- H01L21/28506—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers
- H01L21/28512—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic Table
- H01L21/28556—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic Table by chemical means, e.g. CVD, LPCVD, PECVD, laser CVD
- H01L21/28562—Selective deposition
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- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Power Engineering (AREA)
- Plasma & Fusion (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Electrodes Of Semiconductors (AREA)
- Physical Vapour Deposition (AREA)
- Chemical Vapour Deposition (AREA)
Abstract
Description
Claims (49)
- 반도체 기판 상에 금속 상호접속부를 형성하기 위한 방법으로서,원격 플라즈마 공급원에서 플라즈마를 발생시키고, 라디칼을 플라즈마로부터 기판을 수용하고 있는 제1 처리챔버로 전달하며, 배리어층 증착에 앞서 유전체층에 형성된 피쳐에 상기 라디칼을 접촉시킴으로써, 유전체층에 형성된 피쳐를 세정하고 유전체층의 하부에 있는 전도물질을 노출시키는 단계;제2 처리챔버에서 200 내지 300℃ 사이의 온도와 1 내지 10 Torr 사이의 압력으로 상기 피쳐 내에 질화탄탈층을 원자층 증착방식에 의하여 증착하는 단계;제3 처리챔버에서 상기 질화탄탈층 상에 물리적 기상 증착방식에 의하여 탄탈층을 증착하는 단계;전도물질이 노출되도록 상기 피쳐의 하부에 있는 질화탄탈층 및 탄탈층의 적어도 일부를 제거하기 위하여, 제4 처리챔버에서 상기 질화탄탈층 및 상기 탄탈층을 플라즈마 식각하는 단계;상기 탄탈층을 플라즈마 식각한 후에, 물리적 기상 증착방식에 의하여 상기 탄탈층 상에 탄탈을 증착하는 단계; 및제5 처리챔버에서 상기 전도물질 및 상기 탄탈층 위로 시드층을 증착하는 단계; 를 포함하고,상기 제1 처리챔버, 제2 처리챔버, 제3 처리챔버, 제4 처리챔버, 및 제5 처리챔버가 통합 장치 내에 배치되는 것을 특징으로 하는 금속 상호접속부 형성방법.
- 제 1 항에 있어서,상기 세정이 40 내지 200 mTorr 에서 30-120 초간 실행되는 것을 특징으로 하는 금속 상호접속부 형성방법.
- 제 1 항에 있어서,상기 세정이, 300 내지 600 W의 RF 전력, 10 내지 100 W의 웨이퍼 바이어스, 및 1 내지 4 MHz의 주파수를 포함하는 플라즈마에 의해 실행되는 것을 특징으로 하는 금속 상호접속부 형성방법.
- 제 1 항에 있어서,상기 세정이, 0 내지 10 %의 수소와 90 내지 100 %의 헬륨으로 구성된 공급가스에 의해 실행되는 것을 특징으로 하는 금속 상호접속부 형성방법.
- 제 1 항에 있어서,상기 질화탄탈 증착이 1 내지 5 Torr 및 100 내지 300 ℃의 가열 온도에서 실행되는 것을 특징으로 하는 금속 상호접속부 형성방법.
- 삭제
- 제 1 항에 있어서,상기 질화탄탈 증착이, t-부틸이미노 트리스(디에틸아미노) 탄탈 (t-butylimino tris(diethylamino) tantalum), 펜타키스 (에틸메틸아미플로) 탄탈 (pentakis (ethylmethylamiflo) tantalum), 펜타키스 (디메틸아미노) 탄탈 (pentakis (dimethylamino) tantalum), 펜타키스 (디에틸아미노) 탄탈 (pentakis (diethylamino) tantalum), t-부틸이미노 트리스(디에틸메틸아미노) 탄탈 (t-butylimino tris(diethylmethylamino) tantalum), t-부틸이미노 트리스(디메틸아미노) 탄탈 (t-butylimino tris(dimethylamino) tantalum), 비스(시클로펜타디에닐) 탄탈 트리하이드라이드 (bis(cyclopentadienyl) tantalum trihydride), 및 비스(메틸시클로펜타디에폴릴) 탄탈 트리하이드라이드 (bis(methylcyclopentadieflyl) tantalum trihydride)로 이루어진 그룹에서 선택된 선구물질을 포함하는 탄탈로 실행되는 것을 특징으로 하는 금속 상호접속부 형성방법.
- 제 1 항에 있어서,상기 질화탄탈 증착이, 암모니아, 히드라진, 메틸히드라진, 디메틸히드라진, t-부틸히드라진, 페닐히드라진, 및 아조이소부타플 에틸아지드 (azoisobutafle ethylazide)로 이루어진 그룹에서 선택된 선구물질을 포함하는 질소로 실행되는 것을 특징으로 하는 금속 상호접속부 형성방법.
- 제 1 항에 있어서,상기 질화탄탈 증착이, 0초 초과 2.0초 이하의 시간 동안 100 내지 3,000 sccm으로 챔버로 펄스된 선구물질을 포함하는 탄탈로 실행되는 것을 특징으로 하는 금속 상호접속부 형성방법.
- 제 1 항에 있어서,상기 질화탄탈 증착이, 0초 초과 2.0초 이하의 시간 동안 100 내지 3,000 sccm으로 챔버로 펄스된 선구물질을 포함하는 질소로 실행되는 것을 특징으로 하는 금속 상호접속부 형성방법.
- 제 1 항에 있어서,상기 질화탄탈 증착이, 1,000 내지 10,000 sccm 으로 챔버로 연속적으로 유동하는 아르곤으로 실행되는 것을 특징으로 하는 금속 상호접속부 형성방법.
- 제 1 항에 있어서,상기 탄탈층 증착이, 100 내지 1000 W의 기판 바이어스로 실행되는 것을 특징으로 하는 금속 상호접속부 형성방법.
- 삭제
- 제 1 항에 있어서,상기 플라즈마 식각이, 100 내지 1000 W의 RF 전력으로 1 내지 20 초간 실행되는 것을 특징으로 하는 금속 상호접속부 형성방법.
- 제 1 항에 있어서,상기 플라즈마 식각이, 지향성 아르곤 플라즈마로 실행되는 것을 특징으로 하는 금속 상호접속부 형성방법.
- 제 1 항에 있어서,상기 시드층은 추가적인 금속층을 포함하는 다층식 시드층인 것을 특징으로 하는 금속 상호접속부 형성방법.
- 제 1 항에 있어서,상기 시드층 상에 벌크 금속 층을 증착하는 단계를 더 포함하는 것을 특징으로 하는 금속 상호접속부 형성방법.
- 제 1 항에 있어서,상기 제3 및 제4 처리챔버가 동일한 챔버인 것을 특징으로 하는 금속 상호접속부 형성방법.
- 삭제
- 제 16 항에 있어서,상기 추가적인 금속층의 금속이, 구리, 구리알루미늄, 구리주석, 탄탈, 텅스텐, 탈륨, 코발트, 티타늄, 및 알루미늄으로 이루어진 그룹에서 선택된 금속인 것을 특징으로 하는 금속 상호접속부 형성방법.
- 삭제
- 제 1 항에 있어서,상기 시드층이, 화학적 기상 증착방식, 물리적 기상 증착방식, 전기도금방식, 및 비전해도금방식으로 이루어진 그룹에서 선택된 방식에 의해 증착되는 것을 특징으로 하는 금속 상호접속부 형성방법.
- 제 1 항에 있어서,상기 시드층이, 구리, 구리알루미늄, 구리주석, 탄탈, 텅스텐, 탈륨, 코발트, 티타늄, 및 알루미늄으로 이루어진 그룹에서 선택된 금속을 포함하는 것을 특징으로 하는 금속 상호접속부 형성방법.
- 삭제
- 제 1 항에 있어서,상기 플라즈마 식각이 희가스로 실행되는 것을 특징으로 하는 금속 상호접속부 형성방법.
- 반도체 기판 상에 금속 상호접속부를 형성하기 위한 방법으로서,원격 플라즈마 공급원에서 플라즈마를 발생시키고, 라디칼을 플라즈마로부터 기판을 수용하고 있는 제1 처리챔버로 전달하며, 배리어층 증착에 앞서 유전체층에 형성된 피쳐에 상기 라디칼을 접촉시킴으로써, 유전체층에 형성된 피쳐를 세정하고 유전체층의 하부에 있는 전도물질을 노출시키는 단계;제2 처리챔버에서 200 내지 300℃ 사이의 온도와 1 내지 10 Torr 사이의 압력으로 상기 피쳐 내에 질화탄탈층을 원자층 증착방식에 의하여 증착하는 단계;제3 처리챔버에서 상기 질화탄탈층 상에 물리적 기상 증착방식에 의하여 탄탈층을 증착하는 단계;전도물질이 노출되도록 상기 피쳐의 하부에 있는 질화탄탈층 및 탄탈층의 적어도 일부를 제거하기 위하여, 상기 제3 처리챔버에서 상기 질화탄탈층 및 상기 탄탈층을 플라즈마 식각하는 단계;상기 탄탈층을 플라즈마 식각한 후에, 물리적 기상 증착방식에 의하여 상기 탄탈층 상에 탄탈을 증착하는 단계; 및제4 처리챔버에서 상기 전도물질 및 상기 탄탈층 위로 시드층을 증착하는 단계; 를 포함하고,상기 제1 처리챔버, 제2 처리챔버, 제3 처리챔버, 및 제4 처리챔버가 통합 장치 내에 배치되는 것을 특징으로 하는 금속 상호접속부 형성방법.
- 제 26 항에 있어서,상기 세정이 40 내지 200 mTorr 에서 30-120 초간 실행되는 것을 특징으로 하는 금속 상호접속부 형성방법.
- 제 26 항에 있어서,상기 세정이, 300 내지 600 W의 RF 전력, 10 내지 100 W의 웨이퍼 바이어스, 및 1 내지 4 MHz의 주파수를 포함하는 플라즈마에 의해 실행되는 것을 특징으로 하는 금속 상호접속부 형성방법.
- 제 26 항에 있어서,상기 세정이, 0 내지 10 %의 수소와 90 내지 100 %의 헬륨으로 구성된 공급가스에 의해 실행되는 것을 특징으로 하는 금속 상호접속부 형성방법.
- 제 26 항에 있어서,상기 질화탄탈 증착이 1 내지 5 Torr 및 100 내지 300 ℃의 가열 온도에서 실행되는 것을 특징으로 하는 금속 상호접속부 형성방법.
- 삭제
- 제 26 항에 있어서,상기 질화탄탈 증착이, 0초 초과 2.0초 이하의 시간 동안 100 내지 3,000 sccm으로 챔버로 펄스된 선구물질을 포함하는 탄탈로 실행되는 것을 특징으로 하는 금속 상호접속부 형성방법.
- 제 26 항에 있어서,상기 질화탄탈 증착이, 0초 초과 2.0초 이하의 시간 동안 100 내지 3,000 sccm으로 챔버로 펄스된 선구물질을 포함하는 질소로 실행되는 것을 특징으로 하는 금속 상호접속부 형성방법.
- 제 26 항에 있어서,상기 질화탄탈 증착이, 1,000 내지 10,000 sccm 으로 챔버로 연속적으로 유동하는 아르곤으로 실행되는 것을 특징으로 하는 금속 상호접속부 형성방법.
- 제 26 항에 있어서,상기 탄탈층 증착이, 100 내지 1000 W의 기판 바이어스로 실행되는 것을 특징으로 하는 금속 상호접속부 형성방법.
- 제 26 항에 있어서,상기 플라즈마 식각이, 100 내지 1000 W의 RF 전력으로 1 내지 20 초간 실행되는 것을 특징으로 하는 금속 상호접속부 형성방법.
- 제 26 항에 있어서,상기 플라즈마 식각이, 지향성 아르곤 플라즈마로 실행되는 것을 특징으로 하는 금속 상호접속부 형성방법.
- 제 26 항에 있어서,상기 시드층은 추가적인 금속층을 포함하는 다층식 시드층인 것을 특징으로 하는 금속 상호접속부 형성방법.
- 제 26 항에 있어서,상기 제2 및 제3 처리챔버가 동일한 챔버인 것을 특징으로 하는 금속 상호접속부 형성방법.
- 삭제
- 제 26 항에 있어서,상기 시드층이, 화학적 기상 증착방식, 물리적 기상 증착방식, 전기도금방식, 및 비전해도금방식으로 이루어진 그룹에서 선택된 방식에 의해 증착되는 것을 특징으로 하는 금속 상호접속부 형성방법.
- 삭제
- 제 26 항에 있어서,상기 시드층 상에 벌크 금속 층을 증착하는 단계를 더 포함하는 것을 특징으로 하는 금속 상호접속부 형성방법.
- 삭제
- 삭제
- 제 1 항에 있어서,상기 물리적 기상 증착방식에 의하여 상기 탄탈층 상에 탄탈을 증착하는 것은:상기 탄탈층 및 상기 질화탄탈층을 플라즈마 식각하는 동안 식각될 수 있는 상기 탄탈층의 빗각 코너(bevel corner)에 탄탈을 축적하기 위해, 상기 빗각 코너에 탄탈을 증착하는 것을 특징으로 하는 금속 상호접속부 형성방법.
- 제 26 항에 있어서,상기 물리적 기상 증착방식에 의하여 상기 탄탈층 상에 탄탈을 증착하는 것은:상기 탄탈층 및 상기 질화탄탈층을 플라즈마 식각하는 동안 식각될 수 있는 상기 탄탈층의 빗각 코너에 탄탈을 축적하기 위해, 상기 빗각 코너에 탄탈을 증착하는 것을 특징으로 하는 금속 상호접속부 형성방법.
- 제 17 항에 있어서,상기 벌크 금속층은 구리, 알루미늄, 텅스텐, 또는 이들의 조합물을 포함하는 그룹으로부터 선택된 금속을 포함하는 것을 특징으로 하는 금속 상호접속부 형성방법.
- 제 43 항에 있어서,상기 벌크 금속층은 구리, 알루미늄, 텅스텐, 또는 이들의 조합물을 포함하는 그룹으로부터 선택된 금속을 포함하는 것을 특징으로 하는 금속 상호접속부 형성방법.
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US47866303P | 2003-06-13 | 2003-06-13 | |
US60/478,663 | 2003-06-13 | ||
PCT/US2004/020008 WO2004114398A1 (en) | 2003-06-13 | 2004-06-10 | Integration of ald tantalum nitride for copper metallization |
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KR20060017871A KR20060017871A (ko) | 2006-02-27 |
KR101177576B1 true KR101177576B1 (ko) | 2012-08-27 |
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JP (1) | JP2007502551A (ko) |
KR (1) | KR101177576B1 (ko) |
CN (1) | CN100593235C (ko) |
WO (1) | WO2004114398A1 (ko) |
Cited By (1)
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KR20180044195A (ko) * | 2016-10-21 | 2018-05-02 | 램 리써치 코포레이션 | 금속 옥사이드를 환원시키고 제거함으로써 저 저항률 금속 콘택트들 및 상호접속부들을 형성하는 시스템들 및 방법들 |
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JP2005203569A (ja) * | 2004-01-15 | 2005-07-28 | Semiconductor Leading Edge Technologies Inc | 半導体装置の製造方法及び半導体装置 |
US20050252449A1 (en) * | 2004-05-12 | 2005-11-17 | Nguyen Son T | Control of gas flow and delivery to suppress the formation of particles in an MOCVD/ALD system |
US7498242B2 (en) | 2005-02-22 | 2009-03-03 | Asm America, Inc. | Plasma pre-treating surfaces for atomic layer deposition |
KR101423350B1 (ko) * | 2006-08-30 | 2014-07-24 | 램 리써치 코포레이션 | 인터페이스 가공을 위한 제어 분위기 시스템 |
JP2008147252A (ja) * | 2006-12-06 | 2008-06-26 | Renesas Technology Corp | 半導体装置とその製造方法 |
KR100842668B1 (ko) * | 2006-12-26 | 2008-06-30 | 동부일렉트로닉스 주식회사 | 반도체 소자의 금속배선 형성방법 |
JP2009016782A (ja) * | 2007-06-04 | 2009-01-22 | Tokyo Electron Ltd | 成膜方法及び成膜装置 |
US7867891B2 (en) * | 2008-12-10 | 2011-01-11 | Intel Corporation | Dual metal interconnects for improved gap-fill, reliability, and reduced capacitance |
US8557702B2 (en) * | 2009-02-02 | 2013-10-15 | Asm America, Inc. | Plasma-enhanced atomic layers deposition of conductive material over dielectric layers |
JP5410348B2 (ja) * | 2010-03-26 | 2014-02-05 | 株式会社豊田中央研究所 | 表面処理装置 |
CN104109844B (zh) * | 2013-04-18 | 2016-07-06 | 中芯国际集成电路制造(上海)有限公司 | 一种基于原子层沉积技术的氮化钽薄膜的制作工艺 |
KR20190041030A (ko) | 2016-09-15 | 2019-04-19 | 어플라이드 머티어리얼스, 인코포레이티드 | 반도체 프로세스를 위한 통합 시스템 |
CN109346436A (zh) * | 2018-09-20 | 2019-02-15 | 德淮半导体有限公司 | 制造半导体装置的方法 |
JP7641235B2 (ja) | 2019-12-12 | 2025-03-06 | 株式会社Adeka | 銅含有層の製造方法 |
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JP2007502551A (ja) | 2007-02-08 |
CN1806325A (zh) | 2006-07-19 |
KR20060017871A (ko) | 2006-02-27 |
CN100593235C (zh) | 2010-03-03 |
WO2004114398A1 (en) | 2004-12-29 |
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