JP7614232B2 - めっき処理方法およびめっき処理装置 - Google Patents
めっき処理方法およびめっき処理装置 Download PDFInfo
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- JP7614232B2 JP7614232B2 JP2022575552A JP2022575552A JP7614232B2 JP 7614232 B2 JP7614232 B2 JP 7614232B2 JP 2022575552 A JP2022575552 A JP 2022575552A JP 2022575552 A JP2022575552 A JP 2022575552A JP 7614232 B2 JP7614232 B2 JP 7614232B2
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- plating
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Images
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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
- H01L21/76871—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
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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
- 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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- 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
- 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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- 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
- 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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- C—CHEMISTRY; METALLURGY
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- C23C18/1619—Apparatus for electroless 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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- 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
- 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
- C23C18/1601—Process or apparatus
- C23C18/1633—Process of electroless plating
- C23C18/1675—Process conditions
- C23C18/1683—Control of electrolyte composition, e.g. measurement, adjustment
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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
- 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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- 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
- 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
- C23C18/32—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron
- C23C18/34—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron using reducing agents
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- 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
- 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
- C23C18/38—Coating with copper
- C23C18/40—Coating with copper using reducing agents
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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
- H01L21/02—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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- 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
- H01L21/283—Deposition of conductive or insulating materials for electrodes conducting electric current
- H01L21/288—Deposition of conductive or insulating materials for electrodes conducting electric current from a liquid, e.g. electrolytic deposition
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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
- H01L21/76877—Filling of holes, grooves or trenches, e.g. vias, with conductive material
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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
- H01L21/76877—Filling of holes, grooves or trenches, e.g. vias, with conductive material
- H01L21/76879—Filling of holes, grooves or trenches, e.g. vias, with conductive material by selective deposition of conductive material in the vias, e.g. selective C.V.D. on semiconductor material, plating
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/18—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using precipitation techniques to apply the conductive material
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Physics & Mathematics (AREA)
- Electrochemistry (AREA)
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Description
最初に、実施形態に係る基板処理システム1の概略構成について、図1を参照しながら説明する。図1は、実施形態に係る基板処理システム1の構成を示す模式平面図である。基板処理システム1は、めっき処理装置の一例である。
次に、めっき処理ユニット16の概略構成について、図2を参照しながら説明する。図2は、実施形態に係るめっき処理ユニット16の構成を示す模式断面図である。めっき処理ユニット16は、たとえば、ウェハWを1枚ずつ処理する枚葉式の処理ユニットとして構成される。
次に、熱処理ユニット17の概略構成について、図3を参照しながら説明する。図3は、実施形態に係る熱処理ユニット17の構成を示す模式断面図である。熱処理ユニット17は、たとえば、ウェハWを1枚ずつ処理する枚葉式の処理ユニットとして構成される。
つづいて、実施形態に係るめっき処理の詳細について、図4~図6を参照しながら説明する。図4は、実施形態に係るめっき処理前のウェハW表面の状態を示す拡大断面図である。
つづいて、実施形態の各種変形例について、図7~図9を参照しながら説明する。図7および図8は、実施形態の変形例1に係るめっき処理方法を説明するための図である。
図9は、実施形態の変形例2に係るめっき処理方法を説明するための図である。図9に示す変形例2では、薬液供給部32の構成が上述の実施形態および変形例1とは異なる。
つづいて、図10および図11を参照しながら、実施形態に係る基板処理システム1が実行するめっき処理の詳細について説明する。図10は、実施形態に係るめっき処理の処理手順を示すフローチャートである。
5 制御部
16 めっき処理ユニット
31 基板保持部
32 薬液供給部
32d1 第1のノズル
32d2 第2のノズル
32d3 混合ノズル
L1 第1の薬液
L2 第2の薬液
M めっき液
W ウェハ(基板の一例)
Claims (9)
- 基板を準備する準備工程と、
金属イオン、還元剤および錯化剤を含有する第1の薬液と、アルカリ性を有する水溶液であるアルカリ水溶液を80(体積%)以上含む第2の薬液とを混合してめっき液を生成するめっき液生成工程と、
前記めっき液生成工程で前記めっき液を生成した直後に、生成された前記めっき液を用いて前記基板に対して無電解めっき処理を行うめっき処理工程と、
を含むめっき処理方法。 - 前記めっき液生成工程は、前記第1の薬液を第1のノズルで前記基板に吐出するとともに、前記第2の薬液を第2のノズルで前記基板に吐出して、前記基板上で前記第1の薬液と前記第2の薬液とを混合することにより行われる
請求項1に記載のめっき処理方法。 - 前記めっき液生成工程は、前記第2の薬液の液膜が形成された前記基板に対して、前記第1の薬液を前記基板に吐出することにより行われる
請求項1に記載のめっき処理方法。 - 前記めっき液生成工程は、前記第1の薬液と前記第2の薬液とを混合ノズル内で混合することにより行われる
請求項1に記載のめっき処理方法。 - 前記第2の薬液は、前記第1の薬液のpHが大きくなるようにpHを調整する
請求項1~4のいずれか一つに記載のめっき処理方法。 - 前記第2の薬液は、前記アルカリ水溶液および不可避的不純物からなる
請求項5に記載のめっき処理方法。 - 前記めっき液生成工程は、前記第1の薬液および前記第2の薬液のうち少なくとも一方を室温より高い温度に昇温した後に行われる
請求項1~6のいずれか一つに記載のめっき処理方法。 - 前記めっき液生成工程の前に行われ、前記金属イオンを含む第3の薬液と、前記還元剤を含む第4の薬液とを混合して前記第1の薬液を生成する第1薬液生成工程、をさらに含む
請求項1~7のいずれか一つに記載のめっき処理方法。 - 基板を保持する基板保持部と、
前記基板に薬液を供給する薬液供給部と、
各部を制御する制御部と、
を備え、
前記制御部は、
前記基板保持部で前記基板を保持し、
前記薬液供給部を制御して、金属イオン、還元剤および錯化剤を含有する第1の薬液と、アルカリ性を有する水溶液であるアルカリ水溶液を80(体積%)以上含む第2の薬液とを混合してめっき液を生成し、
前記めっき液を生成した直後に、生成された前記めっき液を用いて前記基板に対して無電解めっき処理を行う
めっき処理装置。
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| PCT/JP2022/000191 WO2022153914A1 (ja) | 2021-01-18 | 2022-01-06 | めっき処理方法およびめっき処理装置 |
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| JP2004346399A (ja) | 2003-05-23 | 2004-12-09 | Ebara Corp | 基板処理方法及び基板処理装置 |
| JP2005097736A (ja) | 2003-08-27 | 2005-04-14 | Freescale Semiconductor Inc | 銅を覆う障壁物質を形成するための半導体処理方法及び組成物 |
| JP2006111938A (ja) | 2004-10-15 | 2006-04-27 | Tokyo Electron Ltd | 無電解めっき装置 |
| JP2013253282A (ja) | 2012-06-06 | 2013-12-19 | Kanto Gakuin | 無電解めっき浴および無電解めっき膜 |
| WO2019239772A1 (ja) | 2018-06-13 | 2019-12-19 | 株式会社Screenホールディングス | 無電解めっき方法、無電解めっき装置およびプログラム |
| WO2020137652A1 (ja) | 2018-12-28 | 2020-07-02 | 東京エレクトロン株式会社 | 基板液処理装置及び基板液処理方法 |
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| JPH07197267A (ja) * | 1994-01-05 | 1995-08-01 | Nisshinbo Ind Inc | 無電解メッキ浴液調合装置 |
| US20050227074A1 (en) * | 2004-04-08 | 2005-10-13 | Masaaki Oyamada | Conductive electrolessly plated powder and method for making same |
| TWI833730B (zh) | 2018-02-21 | 2024-03-01 | 日商東京威力科創股份有限公司 | 多層配線之形成方法及記憶媒體 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004346399A (ja) | 2003-05-23 | 2004-12-09 | Ebara Corp | 基板処理方法及び基板処理装置 |
| JP2005097736A (ja) | 2003-08-27 | 2005-04-14 | Freescale Semiconductor Inc | 銅を覆う障壁物質を形成するための半導体処理方法及び組成物 |
| JP2006111938A (ja) | 2004-10-15 | 2006-04-27 | Tokyo Electron Ltd | 無電解めっき装置 |
| JP2013253282A (ja) | 2012-06-06 | 2013-12-19 | Kanto Gakuin | 無電解めっき浴および無電解めっき膜 |
| WO2019239772A1 (ja) | 2018-06-13 | 2019-12-19 | 株式会社Screenホールディングス | 無電解めっき方法、無電解めっき装置およびプログラム |
| WO2020137652A1 (ja) | 2018-12-28 | 2020-07-02 | 東京エレクトロン株式会社 | 基板液処理装置及び基板液処理方法 |
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| JPWO2022153914A1 (ja) | 2022-07-21 |
| TW202242969A (zh) | 2022-11-01 |
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