KR20010030070A - 반도체 집적 회로 장치 및 반도체 집적 회로 장치의 제조방법 - Google Patents
반도체 집적 회로 장치 및 반도체 집적 회로 장치의 제조방법 Download PDFInfo
- Publication number
- KR20010030070A KR20010030070A KR1020000046084A KR20000046084A KR20010030070A KR 20010030070 A KR20010030070 A KR 20010030070A KR 1020000046084 A KR1020000046084 A KR 1020000046084A KR 20000046084 A KR20000046084 A KR 20000046084A KR 20010030070 A KR20010030070 A KR 20010030070A
- Authority
- KR
- South Korea
- Prior art keywords
- film
- copper
- insulating film
- wiring
- integrated circuit
- Prior art date
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- 239000004065 semiconductor Substances 0.000 title claims description 120
- 238000004519 manufacturing process Methods 0.000 title claims description 67
- 239000010949 copper Substances 0.000 claims abstract description 206
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 163
- 238000000034 method Methods 0.000 claims abstract description 130
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 87
- 229910052802 copper Inorganic materials 0.000 claims abstract description 83
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 79
- 229910052581 Si3N4 Inorganic materials 0.000 claims abstract description 58
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims abstract description 58
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- 238000011282 treatment Methods 0.000 claims description 39
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 32
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 30
- 229910052751 metal Inorganic materials 0.000 claims description 24
- 239000002184 metal Substances 0.000 claims description 24
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- 239000001307 helium Substances 0.000 claims description 17
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 17
- 150000004767 nitrides Chemical class 0.000 claims description 17
- 229910052786 argon Inorganic materials 0.000 claims description 16
- 238000009792 diffusion process Methods 0.000 claims description 11
- 239000003085 diluting agent Substances 0.000 claims description 8
- -1 copper nitride Chemical class 0.000 claims description 7
- 150000002500 ions Chemical class 0.000 claims description 7
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- 239000012071 phase Substances 0.000 claims 2
- 239000012808 vapor phase Substances 0.000 claims 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 94
- 229910052814 silicon oxide Inorganic materials 0.000 abstract description 87
- 238000004140 cleaning Methods 0.000 abstract description 62
- 230000015556 catabolic process Effects 0.000 abstract description 16
- 238000009751 slip forming Methods 0.000 abstract description 3
- 239000010408 film Substances 0.000 description 462
- 239000000758 substrate Substances 0.000 description 130
- 239000010410 layer Substances 0.000 description 75
- 238000012545 processing Methods 0.000 description 70
- 239000001257 hydrogen Substances 0.000 description 47
- 229910052739 hydrogen Inorganic materials 0.000 description 47
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 42
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 40
- 239000002002 slurry Substances 0.000 description 39
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- 238000004833 X-ray photoelectron spectroscopy Methods 0.000 description 20
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- 150000002431 hydrogen Chemical class 0.000 description 18
- 239000000463 material Substances 0.000 description 18
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- 229910052721 tungsten Inorganic materials 0.000 description 15
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 14
- 239000012964 benzotriazole Substances 0.000 description 14
- 230000005684 electric field Effects 0.000 description 14
- 239000012535 impurity Substances 0.000 description 14
- 239000010937 tungsten Substances 0.000 description 14
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 13
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 13
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- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 9
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- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 9
- 230000001681 protective effect Effects 0.000 description 9
- 229910021332 silicide Inorganic materials 0.000 description 9
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 9
- 229910052782 aluminium Inorganic materials 0.000 description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 8
- 230000007797 corrosion Effects 0.000 description 8
- 238000005260 corrosion Methods 0.000 description 8
- 230000008021 deposition Effects 0.000 description 8
- 230000007246 mechanism Effects 0.000 description 8
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 8
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical group [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 7
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- JUZTWRXHHZRLED-UHFFFAOYSA-N [Si].[Cu].[Cu].[Cu].[Cu].[Cu] Chemical compound [Si].[Cu].[Cu].[Cu].[Cu].[Cu] JUZTWRXHHZRLED-UHFFFAOYSA-N 0.000 description 6
- 238000005229 chemical vapour deposition Methods 0.000 description 6
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- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 5
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- 229910006358 Si—OH Inorganic materials 0.000 description 5
- 229910006360 Si—O—N Inorganic materials 0.000 description 5
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 5
- 229910001431 copper ion Inorganic materials 0.000 description 5
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- 238000000926 separation method Methods 0.000 description 5
- 229910000077 silane Inorganic materials 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 230000002459 sustained effect Effects 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 238000010306 acid treatment Methods 0.000 description 4
- 239000002585 base Substances 0.000 description 4
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- 238000006056 electrooxidation reaction Methods 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 238000001228 spectrum Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- 239000005751 Copper oxide Substances 0.000 description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 238000000137 annealing Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 238000007865 diluting Methods 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 3
- 150000007524 organic acids Chemical class 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 230000003071 parasitic effect Effects 0.000 description 3
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- 239000000843 powder Substances 0.000 description 3
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- 239000000377 silicon dioxide Substances 0.000 description 3
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- 239000000057 synthetic resin Substances 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
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- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 2
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- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(3+);trinitrate Chemical compound [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
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- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910016344 CuSi Inorganic materials 0.000 description 1
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 1
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Classifications
-
- 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
- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
-
- 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
- H01L21/02123—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 containing silicon
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Abstract
Description
Claims (20)
- 반도체 집적 회로 장치의 제조 방법에 있어서,웨이퍼의 제1 주요면 상의 제1 절연막에 제1 매립 배선홈을 형성하는 단계와,상기 제1 매립 배선홈을 매립하도록 상기 제1 매립 배선홈이 형성된 상기 웨이퍼의 상기 제1 주요면에 구리를 주요 성분으로 하는 제1 금속막을 형성하는 단계와,상기 제1 금속막이 형성된 상기 웨이퍼의 상기 제1 주요면에 대하여, 제 1 화학 기계 연마 처리를 실시함으로써 상기 제1 매립 배선홈 외부의 상기 제1 금속막을 제거하는 단계와,상기 제1 매립 배선홈 외부의 상기 제1 금속막이 제거된 상기 웨이퍼의 상기 제1 주요면에 대하여 환원성을 포함하는 제1 기상 분위기 중에서 제1 플라즈마 처리를 실시함으로써, 상기 제1 매립 배선홈에 매립된 제1 구리 매립 배선 상면을 환원 처리하는 단계와,상기 환원 처리가 실시된 상기 웨이퍼의 상기 제1 주요면에서의 상기 제1 절연막 및 상기 제1 구리 매립 배선 상에, 구리 원자 또는 구리-함유 이온의 절연막으로의 확산을 방지하는 작용을 포함하는 캡 절연막을 형성하는 단계를 포함하는 것을 특징으로 하는 반도체 집적 회로 장치의 제조 방법.
- 제1항에 있어서, 상기 제1 기상(gas-phase) 분위기는 구리 표면에 대하여 질화 작용을 포함하는 것을 특징으로 하는 반도체 집적 회로 장치의 제조 방법.
- 제2항에 있어서, 상기 제1 기상 분위기는 암모니아 가스를 포함하는 것을 특징으로 하는 반도체 집적 회로 장치의 제조 방법.
- 제3항에 있어서, 상기 캡 절연막은 실리콘 질화막인 것을 특징으로 하는 반도체 집적 회로 장치의 제조 방법.
- 제4항에 있어서, 상기 제1 기상 분위기의 암모니아 가스 농도는 5% 이상인 것을 특징으로 하는 반도체 집적 회로 장치의 제조 방법.
- 제5항에 있어서, 상기 제1 기상 분위기는 암모니아와 희석 가스의 혼합 분위기이며, 상기 희석 가스는 암모니아(NH3), 질소(N2), 아르곤(Ar), 헬륨(He)으로부터 선택된 단일 또는 복수의 가스인 것을 특징으로 하는 반도체 집적 회로 장치의 제조 방법.
- 제6항에 있어서, 상기 화학 기계 연마는 지립 프리(abrasive-grain-free) 화학 기계 연마인 것을 특징으로 하는 반도체 집적 회로 장치의 제조 방법.
- 제1항에 있어서, 상기 제1 기상 분위기는 수소 가스를 포함하는 것을 특징으로 하는 반도체 집적 회로 장치의 제조 방법.
- 반도체 집적 회로 장치의 제조 방법에 있어서,웨이퍼의 제1 주요면 상의 제1 절연막에 제1 매립 배선홈을 형성하는 단계와,상기 제1 매립 배선홈을 매립하도록 상기 제1 매립 배선홈이 형성된 상기 웨이퍼의 상기 제1 주요면에 구리를 주요 성분으로 하는 제1 금속막을 형성하는 단계와,상기 제1 금속막이 형성된 상기 웨이퍼의 상기 제1 주요면에 대하여 제1 지립 프리 화학 기계 연마 처리를 실시함으로써, 상기 제1 매립 배선홈 외부의 상기 제1 금속막을 제거하는 단계와,상기 제1 매립 배선홈 외부의 상기 제1 금속막이 제거되는 상기 웨이퍼의 상기 제1 주요면에 대하여 환원성을 포함하는 제1 기상 분위기 중에서 제1 기상 처리를 실시함으로써, 상기 제1 매립 배선홈에 매립된 제1 구리 매립 배선 상면을 환원 처리하는 단계와,상기 환원 처리가 실시된 상기 웨이퍼의 상기 제1 주요면에서의 상기 제1 절연막 및 상기 제1 구리 매립 배선 상에 구리 원자 또는 구리-함유 이온의 배선층으로의 확산을 방지하는 작용을 포함하는 캡 절연막을 형성하는 단계를 포함하는 것을 특징으로 하는 반도체 집적 회로 장치의 제조 방법.
- 제9항에 있어서, 상기 제1 기상 분위기는 구리 표면에 대하여 질화 작용을 포함하는 것을 특징으로 하는 반도체 집적 회로 장치의 제조 방법.
- 제10항에 있어서, 상기 제1 기상 분위기는 암모니아 가스를 포함하는 것을 특징으로 하는 반도체 집적 회로 장치의 제조 방법.
- 제11항에 있어서, 상기 캡 절연막은 실리콘 질화막인 것을 특징으로 하는 반도체 집적 회로 장치의 제조 방법.
- 제12항에 있어서, 상기 제1 기상 처리는 플라즈마 처리인 것을 특징으로 하는 반도체 집적 회로 장치의 제조 방법.
- 제13항에 있어서, 상기 제1 기상 분위기의 암모니아 가스 농도는 5% 이상인 것을 특징으로 하는 반도체 집적 회로 장치의 제조 방법.
- 제14항에 있어서, 상기 제1 기상 분위기는 암모니아와 희석 가스의 혼합 분위기이며, 상기 희석 가스는 암모니아(NH3), 질소(N2), 아르곤(Ar), 헬륨(He)으로부터 선택된 단일 또는 복수의 가스인 것을 특징으로 하는 반도체 집적 회로 장치의 제조 방법.
- 제15항에 있어서, 상기 화학 기계 연마는 지립 프리 화학 기계 연마인 것을 특징으로 하는 반도체 집적 회로 장치의 제조 방법.
- 제9항에 있어서, 상기 제1 기상 분위기는 수소 가스를 포함하는 것을 특징으로 하는 반도체 집적 회로 장치의 제조 방법.
- 반도체 집적 회로 장치에 있어서,제1 주요면을 갖는 반도체 집적 회로 기판과,상기 반도체 집적 회로 기판의 상기 제1 주요면 상에 형성된 제1 절연막과,상기 제1 절연막 표면에 형성된 제1 매립 배선홈과,상기 제1 매립 배선홈 내에 매립된 구리를 주요 성분으로 하는 제1 구리 매립 배선과,상기 제1 구리 매립 배선의 상부 표면에 형성된 구리의 질화막과,상기 제1 주요면의 상기 제1 절연막 및 상기 구리의 질화막 상에 형성되며, 구리 원자 또는 구리-함유 이온의 절연막으로의 확산을 방지하는 작용을 포함하는 캡 절연막과,상기 캡 절연막이 형성된 상기 제1 주요면 상에 형성된 제2 절연막을 포함하는 것을 특징으로 하는 반도체 집적 회로 장치.
- 제18항에 있어서, 상기 캡 절연막은 실리콘 질화막인 것을 특징으로 하는 반도체 집적 회로 장치의 제조 방법.
- 제19항에 있어서,상기 제2 절연막 표면에 형성된 제2 매립 배선홈과,상기 제2 매립 배선홈 내에 매립된 구리를 주요 성분으로 하는 제2 구리 매립 배선을 더 포함하는 것을 특징으로 하는 반도체 집적 회로 장치.
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JP4554011B2 (ja) | 2010-09-29 |
US20020127843A1 (en) | 2002-09-12 |
KR100746543B1 (ko) | 2007-08-06 |
US6716749B2 (en) | 2004-04-06 |
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US6756679B2 (en) | 2004-06-29 |
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US6815330B2 (en) | 2004-11-09 |
JP2001053076A (ja) | 2001-02-23 |
US20020142576A1 (en) | 2002-10-03 |
US20030017692A1 (en) | 2003-01-23 |
US20020113271A1 (en) | 2002-08-22 |
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