WO2006107545A3 - Method for forming a barrier/seed layer for copper metallization - Google Patents

Method for forming a barrier/seed layer for copper metallization Download PDF

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Publication number
WO2006107545A3
WO2006107545A3 PCT/US2006/009219 US2006009219W WO2006107545A3 WO 2006107545 A3 WO2006107545 A3 WO 2006107545A3 US 2006009219 W US2006009219 W US 2006009219W WO 2006107545 A3 WO2006107545 A3 WO 2006107545A3
Authority
WO
WIPO (PCT)
Prior art keywords
layer
forming
seed layer
substrate
barrier
Prior art date
Application number
PCT/US2006/009219
Other languages
French (fr)
Other versions
WO2006107545A2 (en
Inventor
Kenji Suzuki
Original Assignee
Tokyo Electron Ltd
Tokyo Electron America Inc
Kenji Suzuki
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tokyo Electron Ltd, Tokyo Electron America Inc, Kenji Suzuki filed Critical Tokyo Electron Ltd
Publication of WO2006107545A2 publication Critical patent/WO2006107545A2/en
Publication of WO2006107545A3 publication Critical patent/WO2006107545A3/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • 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
    • 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
    • C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
    • C23C16/52—Controlling or regulating the coating process
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • 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
    • 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
    • C23C16/06—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of metallic material
    • C23C16/16—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of metallic material from metal carbonyl compounds
    • 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 at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
    • H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System 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 System
    • 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 System by chemical means, e.g. CVD, LPCVD, PECVD, laser CVD
    • 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
    • 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
    • H01L21/76846—Layer combinations
    • 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
    • H01L21/76853—Barrier, adhesion or liner layers characterized by particular after-treatment steps
    • H01L21/76855—After-treatment introducing at least one additional element into the layer
    • H01L21/76856—After-treatment introducing at least one additional element into the layer by treatment in plasmas or gaseous environments, e.g. nitriding a refractory metal liner
    • 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
    • H01L21/76871—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
    • 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
    • H01L21/76871—Layers specifically deposited to enhance or enable the nucleation of further layers, i.e. seed layers
    • H01L21/76874—Layers specifically deposited to enhance or enable the nucleation of further layers, i.e. seed layers for electroless plating

Abstract

A method (400) for improving adhesion of Cu to a Ru layer (650a, 650b) in Cu metallization. The method (400) includes providing a substrate (25, 125) in a process chamber (10, 110) of a deposition system (1 , 100), depositing a Ru layer (650a, 650b) on the substrate (25, 125) in a chemical vapor deposition process, and forming a Cu seed layer (660a, 660b) on the Ru layer (650a, 650b) to prevent oxidation of the Ru layer (650a, 650b). The Cu seed layer (660a, 660b) is partially or completely oxidized prior to performing a Cu bulk plating process on the substrate (25, 125). The oxidized portion (660a, 667) of the Cu seed layer (660a, 660b) is substantially dissolved and removed from the substrate (25, 125) during interaction with a Cu plating solution, thereby forming a bulk Cu layer (670a, 670b) with good adhesion to the underlying Ru layer (650a, 650b).
PCT/US2006/009219 2005-03-31 2006-03-14 Method for forming a barrier/seed layer for copper metallization WO2006107545A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/096,095 2005-03-31
US11/096,095 US7288479B2 (en) 2005-03-31 2005-03-31 Method for forming a barrier/seed layer for copper metallization

Publications (2)

Publication Number Publication Date
WO2006107545A2 WO2006107545A2 (en) 2006-10-12
WO2006107545A3 true WO2006107545A3 (en) 2006-12-07

Family

ID=36922247

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/009219 WO2006107545A2 (en) 2005-03-31 2006-03-14 Method for forming a barrier/seed layer for copper metallization

Country Status (3)

Country Link
US (1) US7288479B2 (en)
TW (1) TWI313910B (en)
WO (1) WO2006107545A2 (en)

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US7294851B2 (en) * 2004-11-03 2007-11-13 Infineon Technologies Ag Dense seed layer and method of formation
CN101365821B (en) * 2006-02-08 2011-10-05 Jsr株式会社 Method for depositing metallic film
US7473634B2 (en) * 2006-09-28 2009-01-06 Tokyo Electron Limited Method for integrated substrate processing in copper metallization
DE102006062032A1 (en) * 2006-12-29 2008-07-03 Advanced Micro Devices, Inc., Sunnyvale Method for protection of metal layer from external contamination, involves forming seed layer for connecting line structure in substrate of microstructure component
US7829454B2 (en) * 2007-09-11 2010-11-09 Tokyo Electron Limited Method for integrating selective ruthenium deposition into manufacturing of a semiconductior device
US7704879B2 (en) * 2007-09-27 2010-04-27 Tokyo Electron Limited Method of forming low-resistivity recessed features in copper metallization
US7884012B2 (en) * 2007-09-28 2011-02-08 Tokyo Electron Limited Void-free copper filling of recessed features for semiconductor devices
US7776740B2 (en) * 2008-01-22 2010-08-17 Tokyo Electron Limited Method for integrating selective low-temperature ruthenium deposition into copper metallization of a semiconductor device
US8247030B2 (en) * 2008-03-07 2012-08-21 Tokyo Electron Limited Void-free copper filling of recessed features using a smooth non-agglomerated copper seed layer
US8242017B2 (en) * 2008-03-07 2012-08-14 Semiconductor Manufacturing International (Shanghai) Corporation Method and structure for copper gap fill plating of interconnect structures for semiconductor integrated circuits
US7799681B2 (en) 2008-07-15 2010-09-21 Tokyo Electron Limited Method for forming a ruthenium metal cap layer
JP5699425B2 (en) * 2008-08-05 2015-04-08 東京エレクトロン株式会社 Mounting table structure and film forming apparatus
US20100081274A1 (en) * 2008-09-29 2010-04-01 Tokyo Electron Limited Method for forming ruthenium metal cap layers
JP5732772B2 (en) 2009-12-28 2015-06-10 東ソー株式会社 Ruthenium complex mixture, production method thereof, film-forming composition, ruthenium-containing film and production method thereof
US9865501B2 (en) 2013-03-06 2018-01-09 Lam Research Corporation Method and apparatus for remote plasma treatment for reducing metal oxides on a metal seed layer
US9159671B2 (en) 2013-11-19 2015-10-13 International Business Machines Corporation Copper wire and dielectric with air gaps
US9469912B2 (en) 2014-04-21 2016-10-18 Lam Research Corporation Pretreatment method for photoresist wafer processing
US9472377B2 (en) * 2014-10-17 2016-10-18 Lam Research Corporation Method and apparatus for characterizing metal oxide reduction
US9735035B1 (en) * 2016-01-29 2017-08-15 Lam Research Corporation Methods and apparatuses for estimating on-wafer oxide layer reduction effectiveness via color sensing
US10443146B2 (en) 2017-03-30 2019-10-15 Lam Research Corporation Monitoring surface oxide on seed layers during electroplating

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Also Published As

Publication number Publication date
US20060223310A1 (en) 2006-10-05
WO2006107545A2 (en) 2006-10-12
US7288479B2 (en) 2007-10-30
TWI313910B (en) 2009-08-21
TW200644164A (en) 2006-12-16

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