KR100785733B1 - 금속 시드 층의 제조 방법 - Google Patents
금속 시드 층의 제조 방법 Download PDFInfo
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- KR100785733B1 KR100785733B1 KR1020060091477A KR20060091477A KR100785733B1 KR 100785733 B1 KR100785733 B1 KR 100785733B1 KR 1020060091477 A KR1020060091477 A KR 1020060091477A KR 20060091477 A KR20060091477 A KR 20060091477A KR 100785733 B1 KR100785733 B1 KR 100785733B1
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- Prior art keywords
- metal
- deposition
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- substrate
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 98
- 239000002184 metal Substances 0.000 title claims abstract description 98
- 238000000034 method Methods 0.000 title claims abstract description 71
- 230000008569 process Effects 0.000 title claims description 45
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- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 23
- 238000004070 electrodeposition Methods 0.000 claims description 15
- 230000004913 activation Effects 0.000 claims description 13
- 238000005137 deposition process Methods 0.000 claims description 8
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- 229910052763 palladium Inorganic materials 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 4
- 238000010894 electron beam technology Methods 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 4
- 239000001257 hydrogen Substances 0.000 claims 4
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- 230000009467 reduction Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 82
- 239000010949 copper Substances 0.000 description 51
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 27
- 229910052802 copper Inorganic materials 0.000 description 27
- 229910045601 alloy Inorganic materials 0.000 description 17
- 239000000956 alloy Substances 0.000 description 17
- 238000001994 activation Methods 0.000 description 14
- 229910052796 boron Inorganic materials 0.000 description 14
- 229910017052 cobalt Inorganic materials 0.000 description 13
- 239000010941 cobalt Substances 0.000 description 13
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical group [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 13
- 229910052698 phosphorus Inorganic materials 0.000 description 10
- 239000000243 solution Substances 0.000 description 10
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 9
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- 150000004706 metal oxides Chemical class 0.000 description 9
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- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 7
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- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 4
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- 229910000431 copper oxide Inorganic materials 0.000 description 4
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- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
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- 229910052707 ruthenium Inorganic materials 0.000 description 3
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- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 description 2
- 229910002668 Pd-Cu Inorganic materials 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
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- 230000027756 respiratory electron transport chain Effects 0.000 description 2
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- 239000000080 wetting agent Substances 0.000 description 2
- 229910000521 B alloy Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910001096 P alloy Inorganic materials 0.000 description 1
- 229910001080 W alloy Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
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- RJTANRZEWTUVMA-UHFFFAOYSA-N boron;n-methylmethanamine Chemical compound [B].CNC RJTANRZEWTUVMA-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- JPNWDVUTVSTKMV-UHFFFAOYSA-N cobalt tungsten Chemical compound [Co].[W] JPNWDVUTVSTKMV-UHFFFAOYSA-N 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
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- 238000007796 conventional method Methods 0.000 description 1
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- 230000008570 general process Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
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- 239000007788 liquid Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229940098779 methanesulfonic acid Drugs 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229910052756 noble gas Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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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
- H01L21/76877—Filling of holes, grooves or trenches, e.g. vias, with conductive material
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/31—Coating with metals
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
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- C—CHEMISTRY; METALLURGY
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
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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
- H01L21/02041—Cleaning
- H01L21/02057—Cleaning during device manufacture
- H01L21/02068—Cleaning during device manufacture during, before or after processing of conductive layers, e.g. polysilicon or amorphous silicon layers
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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
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- H01L21/76814—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 post-treatment or after-treatment, e.g. cleaning or removal of oxides on underlying conductors
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- H01L21/76841—Barrier, adhesion or liner layers
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- H01L21/76841—Barrier, adhesion or liner layers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
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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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- 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
- H01L21/76864—Thermal treatment
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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
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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
- H01L21/76841—Barrier, adhesion or liner layers
- H01L21/76871—Layers specifically deposited to enhance or enable the nucleation of further layers, i.e. seed layers
- H01L21/76873—Layers specifically deposited to enhance or enable the nucleation of further layers, i.e. seed layers for electroplating
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Abstract
Description
선택적 Co기반 캡 층 증착 | Co기반, Pd활성화 | Co기반, Pd비활성화 | ||||||||
작용 | 성분(예) | Co (P) | Co (W,P) | Co (Mo,P) | Co (B) | Co (P,B) | Co (W,B) | Co (Mo,B) | Co (W,P,B) | Co (Mo,P,B) |
Co 공급원 | Co염,CoCl2 또는 CoSO4 | v | V | v | v | v | v | v | v | v |
M2(W 또는 Mo) 공급원 | (NH4)2WO4, Na2WO4, H3[P(W3O10)4] | V | v | v | ||||||
(NH4)2MoO4, Na2MoO4 | v | v | v | |||||||
환원제 및 N(P 또는 B) 공급원 | NaH2PO2ㆍ2H2O | v | V | v | v | v | v | |||
NaBH4, (CH3)2NHBH3(DMAB) | v | v | v | v | v | v | ||||
표면 활성화 | Pd-Cu 치환 증착 | v | 옵션 | |||||||
화학개질+Pd이온흡착 | v | |||||||||
화학개질단독 (비Pd방법)_ | v | |||||||||
착화제 | Na3C6H5O7ㆍ2H2O | v | v | |||||||
안정제 | 피리딘,구연산,CrCl3 | 옵션 | v | |||||||
PH | 8.5-10 | v | v | |||||||
증착 온도 | 70-80℃ | v | v | |||||||
욕(bath) 안정도 | 길다 | 짧다 |
Claims (12)
- 반도체 소자 제조 방법으로서,노출된 금속 표면을 갖는 기판을 제공하는 단계;금속 표면을 환원시키기 위해 환원 공정을 수행하되, 상기 노출된 금속 표면은 환원 공정이 수행되기 전에 산화되는 단계; 및기판을 불활성 또는 환원 분위기에서 금속 층 증착을 위하여 사용되는 챔버로 전달하는 단계를 포함하는 반도체 소자 제조 방법.
- 제1항에 있어서, 환원 공정은 건식 및 진공 챔버에서 수행되는 건식 공정인 반도체 소자 제조 방법.
- 제2항에 있어서, 건식 공정에서 사용되는 플라즈마의 가스 공급원은 수소 또는 수소/질소를 포함하는 반도체 소자 제조 방법.
- 제1항에 있어서, 환원 공정은 수소 또는 수소/질소 내에서의 열 베이킹(thermal bake) 단계를 포함하는 반도체 소자 제조 방법.
- 제4항에 있어서, 열 베이킹 단계는 25℃ 내지 200℃의 온도에서 수행되는 반도체 소자 제조 방법.
- 제4항에 있어서, 기판은 열 베이킹 단계 중에 자외선(UV) 또는 전자비임(e-beam)에 노출되는 반도체 소자 제조 방법.
- 삭제
- 제1항에 있어서, 금속 층 증착은 전기화학적 증착 공정 또는 치환 증착 공정에 의해 수행되는 반도체 소자 제조 방법.
- 제1항에 있어서, 금속 층 증착은 무전해 증착에 의해 수행되는 반도체 소자 제조 방법.
- 제1항에 있어서, 금속 층 증착 이전에, 금속 활성화 단계가 수행되는 반도체 소자 제조 방법.
- 제10항에 있어서, 금속 활성화 단계는 자기 활성화 단계인 반도체 소자 제조 방법.
- 제10항에 있어서, 금속 활성화 단계는 팔라듐 활성화 단계인 반도체 소자 제 조 방법.
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
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US72495305P | 2005-10-06 | 2005-10-06 | |
US60/724,953 | 2005-10-06 | ||
US11/331,552 | 2006-01-13 | ||
US11/331,552 US7582557B2 (en) | 2005-10-06 | 2006-01-13 | Process for low resistance metal cap |
US11/426,822 US7446034B2 (en) | 2005-10-06 | 2006-06-27 | Process for making a metal seed layer |
US11/426,822 | 2006-06-27 |
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KR20070038874A KR20070038874A (ko) | 2007-04-11 |
KR100785733B1 true KR100785733B1 (ko) | 2007-12-18 |
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KR1020060091477A KR100785733B1 (ko) | 2005-10-06 | 2006-09-20 | 금속 시드 층의 제조 방법 |
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US (1) | US7446034B2 (ko) |
KR (1) | KR100785733B1 (ko) |
FR (1) | FR2892229B1 (ko) |
SG (2) | SG162751A1 (ko) |
TW (1) | TWI327764B (ko) |
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US8003517B2 (en) * | 2007-05-29 | 2011-08-23 | Freescale Semiconductor, Inc. | Method for forming interconnects for 3-D applications |
US8283485B2 (en) * | 2007-06-21 | 2012-10-09 | Air Products And Chemicals, Inc. | Process for selectively depositing copper thin films on substrates with copper and ruthenium areas via vapor deposition |
US8823176B2 (en) * | 2008-10-08 | 2014-09-02 | International Business Machines Corporation | Discontinuous/non-uniform metal cap structure and process for interconnect integration |
TWI383455B (zh) * | 2008-10-16 | 2013-01-21 | Goldenchem Co Ltd | Wafer Reduction Electroless Gold Plating Method |
US9353444B2 (en) * | 2014-03-25 | 2016-05-31 | Lam Research Corporation | Two-step deposition with improved selectivity |
US9865673B2 (en) | 2015-03-24 | 2018-01-09 | International Business Machines Corporation | High resistivity soft magnetic material for miniaturized power converter |
US10103056B2 (en) | 2017-03-08 | 2018-10-16 | Lam Research Corporation | Methods for wet metal seed deposition for bottom up gapfill of features |
US10508351B2 (en) * | 2017-03-16 | 2019-12-17 | Lam Research Corporation | Layer-by-layer deposition using hydrogen |
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US5980977A (en) * | 1996-12-09 | 1999-11-09 | Pinnacle Research Institute, Inc. | Method of producing high surface area metal oxynitrides as substrates in electrical energy storage |
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EP1087432A1 (en) * | 1999-09-24 | 2001-03-28 | Interuniversitair Micro-Elektronica Centrum Vzw | A method for improving the quality of a metal layer deposited from a plating bath |
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JP2007523994A (ja) * | 2003-06-18 | 2007-08-23 | アプライド マテリアルズ インコーポレイテッド | バリヤ物質の原子層堆積 |
KR100598259B1 (ko) * | 2003-07-31 | 2006-07-07 | 동부일렉트로닉스 주식회사 | 반도체의 하이브리드 레이어 배선 형성방법 |
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US20070037389A1 (en) * | 2005-08-11 | 2007-02-15 | Shu-Jen Chen | Method for electroless plating metal cap barrier on copper |
US7582557B2 (en) * | 2005-10-06 | 2009-09-01 | Taiwan Semiconductor Manufacturing Co., Ltd. | Process for low resistance metal cap |
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- 2006-06-27 US US11/426,822 patent/US7446034B2/en not_active Expired - Fee Related
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US20070082474A1 (en) | 2007-04-12 |
US7446034B2 (en) | 2008-11-04 |
KR20070038874A (ko) | 2007-04-11 |
FR2892229B1 (fr) | 2012-01-20 |
TW200717713A (en) | 2007-05-01 |
TWI327764B (en) | 2010-07-21 |
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