WO2018056145A1 - 金属膜の積層構造 - Google Patents
金属膜の積層構造 Download PDFInfo
- Publication number
- WO2018056145A1 WO2018056145A1 PCT/JP2017/033131 JP2017033131W WO2018056145A1 WO 2018056145 A1 WO2018056145 A1 WO 2018056145A1 JP 2017033131 W JP2017033131 W JP 2017033131W WO 2018056145 A1 WO2018056145 A1 WO 2018056145A1
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- WIPO (PCT)
- Prior art keywords
- layer
- metal
- primer layer
- primer
- plating
- Prior art date
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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
- C23C18/18—Pretreatment of the material to be coated
- C23C18/1803—Pretreatment of the material to be coated of metallic material surfaces or of a non-specific material surfaces
- C23C18/1824—Pretreatment of the material to be coated of metallic material surfaces or of a non-specific material surfaces by chemical pretreatment
- C23C18/1837—Multistep pretreatment
- C23C18/1844—Multistep pretreatment with use of organic or inorganic compounds other than metals, first
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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
- H05K3/38—Improvement of the adhesion between the insulating substrate and the metal
- H05K3/386—Improvement of the adhesion between the insulating substrate and the metal by the use of an organic polymeric bonding layer, e.g. adhesive
- H05K3/387—Improvement of the adhesion between the insulating substrate and the metal by the use of an organic polymeric bonding layer, e.g. adhesive for electroless plating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/16—Layered products comprising a layer of metal next to a particulate layer
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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
- C23C18/1601—Process or apparatus
- C23C18/1603—Process or apparatus coating on selected surface areas
- C23C18/1607—Process or apparatus coating on selected surface areas by direct patterning
- C23C18/1608—Process or apparatus coating on selected surface areas by direct patterning from pretreatment step, i.e. selective pre-treatment
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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
- C23C18/1603—Process or apparatus coating on selected surface areas
- C23C18/1607—Process or apparatus coating on selected surface areas by direct patterning
- C23C18/1612—Process or apparatus coating on selected surface areas by direct patterning through irradiation means
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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
- C23C18/1601—Process or apparatus
- C23C18/1633—Process of electroless plating
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- C23C18/1639—Substrates other than metallic, e.g. inorganic or organic or non-conductive
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- 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
- C23C18/1601—Process or apparatus
- C23C18/1633—Process of electroless plating
- C23C18/1635—Composition of the substrate
- C23C18/1639—Substrates other than metallic, e.g. inorganic or organic or non-conductive
- C23C18/1641—Organic substrates, e.g. resin, plastic
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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
- C23C18/1601—Process or apparatus
- C23C18/1633—Process of electroless plating
- C23C18/1646—Characteristics of the product obtained
- C23C18/165—Multilayered product
- C23C18/1653—Two or more layers with at least one layer obtained by electroless plating and one layer obtained by electroplating
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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
- C23C18/18—Pretreatment of the material to be coated
- C23C18/1851—Pretreatment of the material to be coated of surfaces of non-metallic or semiconducting in organic material
- C23C18/1862—Pretreatment of the material to be coated of surfaces of non-metallic or semiconducting in organic material by radiant energy
- C23C18/1865—Heat
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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
- C23C18/18—Pretreatment of the material to be coated
- C23C18/1851—Pretreatment of the material to be coated of surfaces of non-metallic or semiconducting in organic material
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- C23C18/1868—Radiation, e.g. UV, laser
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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
- C23C18/18—Pretreatment of the material to be coated
- C23C18/1851—Pretreatment of the material to be coated of surfaces of non-metallic or semiconducting in organic material
- C23C18/1872—Pretreatment of the material to be coated of surfaces of non-metallic or semiconducting in organic material by chemical pretreatment
- C23C18/1875—Pretreatment of the material to be coated of surfaces of non-metallic or semiconducting in organic material by chemical pretreatment only one step pretreatment
- C23C18/1882—Use of organic or inorganic compounds other than metals, e.g. activation, sensitisation with polymers
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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
- C23C18/18—Pretreatment of the material to be coated
- C23C18/1851—Pretreatment of the material to be coated of surfaces of non-metallic or semiconducting in organic material
- C23C18/1872—Pretreatment of the material to be coated of surfaces of non-metallic or semiconducting in organic material by chemical pretreatment
- C23C18/1886—Multistep pretreatment
- C23C18/1893—Multistep pretreatment with use of organic or inorganic compounds other than metals, first
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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
- C23C18/18—Pretreatment of the material to be coated
- C23C18/20—Pretreatment of the material to be coated of organic surfaces, e.g. resins
- C23C18/2006—Pretreatment of the material to be coated of organic surfaces, e.g. resins by other methods than those of C23C18/22 - C23C18/30
- C23C18/2026—Pretreatment of the material to be coated of organic surfaces, e.g. resins by other methods than those of C23C18/22 - C23C18/30 by radiant energy
- C23C18/2033—Heat
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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
- C23C18/18—Pretreatment of the material to be coated
- C23C18/20—Pretreatment of the material to be coated of organic surfaces, e.g. resins
- C23C18/2006—Pretreatment of the material to be coated of organic surfaces, e.g. resins by other methods than those of C23C18/22 - C23C18/30
- C23C18/2026—Pretreatment of the material to be coated of organic surfaces, e.g. resins by other methods than those of C23C18/22 - C23C18/30 by radiant energy
- C23C18/204—Radiation, e.g. UV, laser
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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
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- C23C18/20—Pretreatment of the material to be coated of organic surfaces, e.g. resins
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- C23C18/2073—Multistep pretreatment
- C23C18/2086—Multistep pretreatment with use of organic or inorganic compounds other than metals, first
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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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- C23C18/20—Pretreatment of the material to be coated of organic surfaces, e.g. resins
- C23C18/28—Sensitising or activating
- C23C18/30—Activating or accelerating or sensitising with palladium or other noble metal
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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
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- 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
- C23C18/42—Coating with noble 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
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- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
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- 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
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- C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
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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
- H05K3/181—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 by electroless plating
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- H—ELECTRICITY
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- 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
- H05K3/181—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 by electroless plating
- H05K3/182—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 by electroless plating characterised by the patterning method
- H05K3/185—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 by electroless plating characterised by the patterning method by making a catalytic pattern by photo-imaging
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/0313—Organic insulating material
- H05K1/032—Organic insulating material consisting of one material
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/09—Use of materials for the conductive, e.g. metallic pattern
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/01—Dielectrics
- H05K2201/0137—Materials
- H05K2201/0145—Polyester, e.g. polyethylene terephthalate [PET], polyethylene naphthalate [PEN]
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/01—Dielectrics
- H05K2201/0137—Materials
- H05K2201/0158—Polyalkene or polyolefin, e.g. polyethylene [PE], polypropylene [PP]
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- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/02—Fillers; Particles; Fibers; Reinforcement materials
- H05K2201/0203—Fillers and particles
- H05K2201/0242—Shape of an individual particle
- H05K2201/0257—Nanoparticles
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/07—Treatments involving liquids, e.g. plating, rinsing
- H05K2203/0703—Plating
- H05K2203/0709—Catalytic ink or adhesive for electroless plating
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- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/07—Treatments involving liquids, e.g. plating, rinsing
- H05K2203/0703—Plating
- H05K2203/072—Electroless plating, e.g. finish plating or initial plating
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- H05K2203/11—Treatments characterised by their effect, e.g. heating, cooling, roughening
- H05K2203/1105—Heating or thermal processing not related to soldering, firing, curing or laminating, e.g. for shaping the substrate or during finish plating
Definitions
- the present invention relates to a laminated structure of a metal film having good adhesion to a substrate, and particularly to a laminated structure having good adhesion to an insulating substrate.
- electroless plating is performed on the surface of an insulating base material using a base metal or base metal alloy such as nickel (Ni), copper (Cu), or cobalt (Co), or silver (Ag), gold (Au), platinum (Pt). It is widely used industrially as a method for directly forming a noble metal or noble metal alloy metal film such as palladium (Pd).
- Insulating base materials to which electroless plating is applied include various compositions such as glass, inorganic oxides, inorganic compounds, plastics, ceramics, organic compounds, cellulose, fabric, rubber, and composites thereof. *
- the inorganic compound-based insulating substrate include inorganic oxides such as glass, alumina, ZnO, and Cu 2 O, and inorganic compounds such as diamond, SiC, GaAs, and GaN.
- Specific insulating resin base materials include polypropylene, polyethylene, polystyrene, acrylic, polyethylene terephthalate, polyphenylene ether, nylon, polyamide, polycarbonate, polyacetal, polyester, polybutylene terephthalate, polyphenylene sulfide, polyether ether ketone, polyurethane, Polyimide, polyamideimide, cyclic polyolefin, polyvinyl chloride, polyvinyl acetate, liquid crystal polymer, fluororesin, ABS resin, thermoplastic resin such as AS resin, or epoxy resin, phenol resin, melamine resin, unsaturated polyester, urea There are thermosetting resins such as resin, alkyd resin, polyurethane, thermosetting polyimide, and glass fiber reinforced plastic. *
- a catalyst nucleus in advance on the surface of the insulative substrate to make it easier to deposit the electroless plating metal on those that are difficult to deposit.
- the insulating base material is immersed in a pretreatment solution, the electroless plating catalyst is attached to a necessary portion of the base material, and then electroless plating is performed. Then, further electroplating is performed as necessary.
- a compound containing a group IB or group VIIIB element of the periodic table is used as an electroless plating catalyst (Japanese Patent Laid-Open No. 57-43977).
- the metal film formed on such a base material is used as wiring etc. for various electrical appliances and electronic devices by being etched into a pattern. *
- a primer layer forming step for forming a primer layer on an insulating substrate, a plating layer forming step for forming a plated layer on the primer layer, and a plating catalyst or a precursor thereof is applied to the plated layer.
- a method of manufacturing a laminate having a metal film including a catalyst application process and a plating process for forming a metal film on a layer to be plated by performing a plating process Japanese Patent Laid-Open No. 2012-180561 (Patents described later) Reference 1
- a method is also known in which a primer layer is formed on the surface of a substrate, and an activator is applied to the surface of the primer layer, followed by electroless plating (Japanese Patent No. 4539101).
- primer solutions comprising finely divided particles containing 0.1-15 wt% colloidal metal and silanol groups and / or partially modified silanol groups in an organic solvent.
- the carboxyl group on the surface of the electrodeposited polyimide is modified with one amino group of an amine compound having an amino group at both ends, a metal catalyst is imparted to the other amino group, and then electroless using the metal catalyst as a nucleus.
- a method of manufacturing a plating film that forms a film by plating is disclosed (Japanese Patent No. 5240812 (Patent Document 2 described later)). *
- electroless plating pretreatment liquids and electroless plating catalyst liquids that directly form metal catalyst nuclei on an insulating substrate are also disclosed.
- gold (Au) particles, palladium (Pd) particles as shown in Japanese Patent No. 4649966 (Patent Document 3 to be described later
- platinum (Pt) as shown in JP-A-01-319683
- Noble metal particles such as particles, or a colloid of copper metal particles as disclosed in JP-A-61-019782.
- the conventional noble metal colloid solution is used directly or indirectly for the insulating substrate, the adsorption force between the metal catalyst core and the insulating substrate or primer layer depends on the particle size, Adhesion with the plating deposition layer was not always sufficient.
- many of the conventional noble metal colloid solutions are susceptible to the surface properties of the insulating substrate, or to acids and alkalis.
- the metal catalyst nucleus may be detached during the electroplating. When such a phenomenon occurs, problems have been pointed out that the plating film is abnormally deposited from the electroless plating bath, or the electroless plating bath runs away and breaks at once. *
- the present inventors can stably disperse the noble metal colloid in any pH region and uniformly adsorb it on the surface of the base material.
- a pretreatment liquid capable of forming a plating film having a thickness has been developed (Japanese Patent Laid-Open No. 2016-023323 (Patent Document 4 described later)). This pretreatment liquid has the same particle diameter of the catalyst metal.
- the catalyst metal deposited by this pretreatment liquid is stable in an electroless plating bath in any pH range. However, even when this pretreatment liquid is applied to a normal insulating substrate to form catalyst nuclei, the adhesion between the deposited metal film and the substrate by electroless plating or subsequent electroplating is sufficient. There was no case. *
- JP 2012-180561 A Japanese Patent No. 5240812 Japanese Patent No. 4649666 JP 2016-023323 A
- the present invention has a problem that the adhesion of the deposited metal film is weak and a uniform adhesion cannot be obtained, or the adhesion of some of the metal nanoparticles is caused by partial aggregation of the metal nanoparticles.
- An object of the present invention is to provide a laminated structure in which metal nanoparticles of a catalyst layer are surrounded by a primer layer and one end thereof is connected to a plating deposition layer.
- the spherical metal nanoparticles 2 are surrounded by the primer layer 3, and one end thereof is connected to the plating deposition layer 1. Succeeded in getting. Since the fluidized primer layer is solidified at room temperature, the contact area between the metal nanoparticles and the primer layer increases dramatically, and the bonding strength between the primer layer and the catalyst layer becomes strong. *
- the laminated structure of the metal film of the present invention is a cross-sectional structure in which three layers of a primer layer, a catalyst layer and a plating deposition layer are laminated on a substrate.
- the primer layer has a glass transition temperature (Tg) of 40 to 430.
- the catalyst layer is a group of metal nanoparticles arranged in a plane on the primer layer, the group of metal nanoparticles is a group IB or group VIIIB metal of the periodic table, and The metal nanoparticles are surrounded by the primer layer, and one end thereof is connected to the plating deposition layer. *
- a primer layer having a glass transition temperature (Tg) of 40 to 430 ° C. is used because the spherical metal nanoparticles are surrounded by the primer layer by applying heat to the primer and fluidizing, and one end of the primer layer is the primer layer. This is to obtain a structure exposed from the layer. And it is thought that the metal-plating layer and the metal nanoparticle which consist of the metal from which the metal precipitated from the ion has carried out the metal bond at the end. In this temperature range, the metal nanoparticles do not diffuse into the plating deposition layer. *
- Tg glass transition temperature
- the glass transition temperature (Tg) is 40 to 430 ° C., preferably 50 to 350 ° C.
- heat treatment is performed at a temperature of 40 ° C. or higher after plating and a glass transition temperature (Tg) of the primer layer within ⁇ 50 ° C. Good to do. This is to avoid alteration of the primer layer.
- the heat treatment temperature is preferably 40 ° C. or higher and the glass transition temperature (Tg) of the primer layer is preferably ⁇ 40 ° C., more preferably 40 ° C. or higher and the glass transition temperature (Tg) of the primer layer is ⁇ 30 ° C.
- the treatment time may be lengthened. *
- a schematic representation is as shown in FIG. That is, the primer resin layer 3 surrounds a spherical metal nanoparticle 2 indicated by a circle, and the plating deposition layer 1 is above it and the insulating substrate layer 4 is below it. Since the primer layer is solidified, the adhesive force between the catalyst layer composed of the metal nanoparticle group and the primer layer is strong. Moreover, since the metal nanoparticle and the plating deposit layer are metal-bonded, the adhesive force between the catalyst layer comprising the metal nanoparticle group and the plating deposit layer is also strong. *
- Specific resin materials for the primer layer include polyamide resin (glass transition temperature (Tg) of about 50 ° C.), polyester resin (glass transition temperature (Tg) of about 75 ° C.), polyvinyl chloride resin (glass transition temperature (Tg)). ) About 80 ° C.), olefin resin (glass transition temperature (Tg) about 120 ° C.), epoxy resin (glass transition temperature (Tg) about 130 ° C.), polycarbonate resin (glass transition temperature (Tg) about 150 ° C.), phenol resin (Glass transition temperature (Tg) of about 160 ° C.), polysulfone resin (glass transition temperature (Tg) of about 190 ° C.), polyimide resin (glass transition temperature (Tg) of about 400 ° C.), and the like.
- the metal nanoparticle group is a group IB or group VIIIB metal in the periodic table because these metals are effective as a colloid catalyst for electroless plating.
- the metal nanoparticles are preferably gold (Au), silver (Ag), platinum (Pt), or palladium (Pd). More preferred is gold (Au) or palladium (Pd).
- These metals can be dispersed in an aqueous solution or an organic solvent liquid in a stable colloidal state by a polymer dispersant such as polyvinylpyrrolidone or a low molecular dispersant such as sugar alcohol. *
- the average particle diameter of the metal nanoparticles is preferably 1 to 100 nm. More preferably, it is 3 to 80 nm. *
- the metal nanoparticle group preferably has a uniform particle size as much as possible. This is to make the repulsive force between the metal nanoparticle groups uniform and to align the metal nanoparticle groups uniformly on the primer layer.
- the coefficient of variation of the particle size of the metal nanoparticles is C.I. V. ⁇ 0.8 is preferred. More preferably, the coefficient of variation C.I. V. ⁇ 0.6. *
- the metal nanoparticles are uniformly surrounded by the primer layer, and no gap is generated between the primer layer and the plating deposition layer. . That is, the plating deposition film that is metal-bonded to the metal nanoparticles and the primer layer are in mesh with each other via the metal nanoparticles, and a strong adhesion can be obtained.
- the metal nanoparticle groups have irregular particle sizes or partially aggregated metal nanoparticle groups, the metal nanoparticle 2 is not uniformly surrounded by the primer layer 3, A space is generated between the primer layer 3 and the plating deposition layer 1, and sufficient adhesion cannot be obtained.
- the metal nanoparticles are surrounded by the primer layer and one end thereof is connected to the plating deposition layer in order to increase the surface area of the metal nanoparticles in contact with the primer layer.
- the spherical metal nanoparticle groups are aligned on the primer layer, the contact area increases when these surfaces are further covered with the primer. Since the spherical metal nanoparticles are individually fixed, the bonding force between the catalyst layer and the primer layer of the entire metal nanoparticle group is much stronger than before.
- “being surrounded” means that the metal nanoparticle group sinks into the primer layer due to fluidization of the primer layer, and more area of the particle surface comes into contact with the primer than before fluidization. And a state in which one end of the particle is exposed.
- Tg glass transition temperature
- the primer layer fluidizes, the metal nanoparticle group sinks into the primer layer, and the particle surface comes into contact with the primer more.
- Tg glass transition temperature
- the metal nanoparticles immobilized on the primer layer are submerged in the primer layer by fluidizing the primer layer, the particle surface is contacted with the primer in a larger area than before fluidization, and The particle can be in an “enclosed” state in which one end of the particle is exposed (see Example 1).
- the bond strength of the entire metal nanoparticle group is the sum of the individual metal nanoparticles. Theoretically, if the particle size of the individual metal nanoparticles is reduced as much as possible, the sum of the contact areas increases, and the primer The adhesion between the catalyst layer and the catalyst layer will be dramatically increased. *
- the metal nanoparticles are preferably gold (Au), silver (Ag), platinum (Pt), or palladium (Pd).
- the average particle diameter of the metal nanoparticles is preferably 1 to 100 nm.
- the metal nanoparticles have a coefficient of variation C.I. V. ⁇ 0.8 is preferred.
- the glass transition temperature (Tg) of the primer layer is preferably 40 to 430 ° C. More preferably, it is 50 to 350 ° C.
- the said plating deposit layer is an electroless plating deposit layer and an electroplating deposit layer.
- the said catalyst layer is partially arrange
- a catalyst layer when a metal circuit is formed on a substrate, a catalyst layer may be partially disposed on the primer layer.
- a primer layer having an amino group surface is formed, and an amino group is removed by partially irradiating ultraviolet rays having a wavelength of 180 to 300 nm using a photomask.
- a catalyst layer can be formed only in the portion where the amino group remains (see Example 2).
- the catalyst layer may be removed by laser ablation after forming the catalyst layer on the primer layer. No extra work such as development process or etching process is required.
- the primer layer can be formed by simply applying and drying by spin coating, bar coating, ink jet printing or the like. *
- a pretreatment liquid developed by the present inventor can also be used as the pretreatment liquid. That is, metal nanoparticles can be dispersed in an aqueous sugar alcohol solution.
- the sugar alcohol aqueous solution is at least one aqueous solution selected from the group consisting of tritol, tetritol, pentitol, hexitol, heptitol, octitol, inositol, quercitol, and pentaerythritol.
- the aqueous solution preferably has a pH of 6 to 7.5. *
- the metal nanoparticles are palladium (Pd) and the sugar alcohol is at least one of glycerin, erythritol, xylitol, or mannitol. Further, it is particularly preferable that the metal nanoparticles are gold (Au) and the sugar alcohol is at least one of glycerin, erythritol, xylitol, mannitol and pentaerythritol.
- Pd palladium
- the sugar alcohol is at least one of glycerin, erythritol, xylitol, or mannitol.
- gold gold
- this pretreatment liquid does not contain components that spontaneously decompose and cause gas volatilization, no gas components are contained in the deposited catalyst core. Moreover, the used waste liquid after the metal nanoparticles are deposited is also stable. Therefore, no runaway reaction occurs when the catalyst nucleus is formed on the primer layer.
- suction can be easily washed off from a primer layer by water washing.
- the catalyst layer of the present invention is a group of dense metal nanoparticles in the first row in which the catalyst layers are arranged on the plane at equal intervals. This is because the metal nanoparticles repel each other and the metal nanoparticles cannot bond to each other.
- the metal nanoparticles are surrounded by the primer layer, and one end thereof is connected to the plating deposition layer, thereby joining the catalyst layer and the primer layer in the laminated structure of the metal film. Power can be improved dramatically. In addition, it is possible to fix the metal nanoparticles on the primer layer of the base material in a flat manner on the insulating base material, and to ensure stable plating strength even if the plating layer is fine. A layer can be formed.
- the glass transition temperature (Tg) of the primer layer is 40 to 430 ° C.
- the entire substrate is heat-treated.
- the adhesion between the substrate and the primer layer is improved, and the adhesion between the primer layer and the plating deposition layer is also improved. That is, as a result of the improved adhesion, it is possible to increase the thickness of the plating deposition layer, and it is possible to form a metal film having a low electrical resistance with a simple laminated structure.
- the metal film produced by the laminated structure of the metal film of the present invention has an effect of obtaining a metal film having a very low resistance that is unprecedented that is not more than 1.5 times the resistance value as metal copper (Cu). (See Example 3). *
- the laminated structure of the metal film of the present invention it is possible to partially dispose the catalyst layer on the primer layer by modifying the functional group on the surface of the primer layer by electromagnetic wave irradiation or removing the catalyst layer. There is an effect that a complicated metal circuit can be formed.
- the insulating substrate A glass (EAGLE XG manufactured by CORNING) was used.
- the primer solution a polyester resin solution (glass transition temperature (actual value) 72 ° C.) was used. The primer solution was applied to the insulating substrate A by the bar coating method, and dried at 100 ° C. for 5 minutes to form a primer layer having a dry film thickness of 0.12 ⁇ m.
- a substrate having a catalyst layer on which nanoparticles having an average particle diameter of 20 nm were adsorbed at an average adsorption density of 273 particles / 0.25 ⁇ m 2 on the primer layer was obtained (FIG. 3).
- a scanning probe microscope (AFM5400L manufactured by Hitachi High-Tech Science Co., Ltd.) was used for observation of the surface shape.
- the average height of the metal nanoparticle group was 14 nm. That is, assuming that the shape of the metal nanoparticle group is a completely independent spherical shape, 6 nm obtained by subtracting the average height of 14 nm from the particle diameter of 20 nm theoretically bites into the primer layer.
- FIG. 4 shows the state of the metal nanoparticles on the primer layer after the substrate is heated at 50 ° C. for 5 minutes to fluidize the primer layer.
- the average adsorbed particle density of the metal nanoparticle group on the primer layer was 249 particles / 0.25 ⁇ m 2 , and there was almost no change from before the primer fluidization.
- the average height of the metal nanoparticle group was 12 nm. That is, 8 nm theoretically digs into the primer layer and sinks 2 nm more than before fluidization.
- substrate is heated for 5 minutes at 100 degreeC, and the state of the metal nanoparticle group on a primer layer after making a primer layer fluidize again is shown in FIG.
- the average adsorbed particle density of the metal nanoparticle group on the primer layer was 280 particles / 0.25 ⁇ m 2 , and there was almost no change from before the primer fluidization.
- the average height of the metal nanoparticle group was 11 nm. That is, 9 nm theoretically bites into the primer layer and sinks 3 nm more than before fluidization.
- the substrate heated at 100 ° C. for 5 minutes is immersed in an electroless gold (Au) plating solution at 65 ° C. (Precious Fab ACG3000WX manufactured by Nippon Electroplating Engineers Co., Ltd.) for 10 minutes, and electroless with a thickness of 0.1 ⁇ m. A gold (Au) plating layer was obtained. When an adhesion test by a cross-cut method was performed on this plating layer, no peeling occurred. *
- an electroless gold (Au) plating layer having a thickness of 0.1 ⁇ m is formed on the substrate on which the primer layer has not been fluidized after the catalyst layer has been formed, and an adhesion test using the cross-cut method is performed on this plating layer. As a result, peeling occurred in a region of 95%.
- a polyester film (Lumirror S10 manufactured by Toray Industries, Inc.) was used.
- an amino group-containing polyester resin solution (glass transition temperature 80 ° C.) was used.
- the primer solution was applied to the insulating base material B by the bar coating method, and dried at 100 ° C. for 5 minutes to form a primer layer having a dry film thickness of 0.07 ⁇ m.
- the substrate was irradiated with a wavelength of 300 nm or less from a distance of 10 mm for 30 seconds using an ultraviolet lamp light source device (TECHNOVISION, Inc., Model 312).
- a quartz mask having a light shielding pattern formed of chromium was placed between the light source and the substrate. As a result, the amino group on the primer exposed to ultraviolet rays disappeared.
- gold (Au) nanoparticles were adsorbed only on the portion of the primer layer where amino groups remained, and a catalyst layer was partially formed on the primer layer.
- the substrate having the partially formed catalyst layer is immersed in an electroless gold (Au) plating solution (Precious Fab ACG3000WX manufactured by Nippon Electroplating Engineers Co., Ltd.) at 65 ° C. for 10 minutes.
- An electroless gold (Au) plating layer having a thickness of 1 ⁇ m was obtained.
- substrate was heated at 100 degreeC for 5 minute (s), the primer layer was fluidized, and the metal nanoparticle was surrounded by the primer layer, and the structure which the one end connected with the plating deposit layer was obtained.
- an adhesion test by a cross-cut method was performed on the circuit formed on the substrate, no peeling occurred. This is because, as is apparent from FIG. 1, a structure in which the metal nanoparticles are surrounded by the primer layer by fluidization and one end thereof is connected to the plating deposition layer can be obtained.
- a polyimide film (Upilex 50SGA manufactured by Ube Industries, Ltd.) was used.
- an olefin resin solution (glass transition temperature 130 ° C.) was used.
- the primer solution was applied to the insulating substrate B by spin coating, and dried at 150 ° C. for 15 minutes to form a primer layer having a dry film thickness of 0.3 ⁇ m.
- this substrate was immersed in an electroless palladium (Pd) plating solution at 52 ° C. (lectroless Pd2000S manufactured by Nippon Electroplating Engineers Co., Ltd.) for 5 minutes, and an electroless palladium (Pd) plating layer having a thickness of 0.05 ⁇ m.
- Pd electroless palladium
- the substrate was heated at 150 ° C. for 5 minutes to fluidize the primer layer.
- an adhesion test was performed on the formed film by a cross-cut method, no peeling occurred.
- a polyester resin solution (glass transition temperature 72 ° C.) was used. The primer solution was applied to the insulating substrate D by dipping the solution and dried at 100 ° C. for 15 minutes to form a primer layer having a dry film thickness of 0.9 ⁇ m.
- CV coefficient of variation CV
- the substrate is heated at 100 ° C. for 10 minutes to fluidize the primer layer, and further electrolyzed on the substrate using a 50 ° C. electrolytic silver (Ag) plating solution (Precious Fab Ag 4730 manufactured by Nippon Electroplating Engineers). Plating was performed to obtain a 20.0 ⁇ m-thick electrolytic silver (Ag) plating layer.
- Ag electrolytic silver
- the insulating substrate E As the insulating substrate E, a Si wafer having a surface of which a 500 nm thick SiO 2 was formed by a thermal oxidation method was used.
- the primer solution a polyamideimide resin solution (glass transition temperature: 370 ° C.) was used.
- a primer solution was applied onto the insulating substrate E by spin coating and dried at 250 ° C. for 10 hours to form a primer layer having a dry film thickness of 6.0 ⁇ m.
- Pt platinum
- this substrate is immersed in an electroless platinum (Pt) plating solution at 60 ° C. (lectroless Pt100 manufactured by Nippon Electroplating Engineers Co., Ltd.) for 4 minutes, and an electroless platinum (Pt) plating layer having a thickness of 0.1 ⁇ m.
- Pt electroless platinum
- a sapphire (Al 2 O 3 ) wafer was used as the insulating substrate F.
- a molten polyamide resin (glass transition temperature 50 ° C.) was used as a primer.
- a primer was applied on the insulating base material F by a spin coating method to form a primer layer having a thickness of 5.0 ⁇ m after curing.
- this substrate was immersed in an electroless gold (Au) plating solution at 25 ° C. containing 10 mM sodium tetrachloroaurate (III) tetrahydrate and 20 mM hydrogen peroxide solution for 4 minutes, and 0.1 ⁇ m A thick electroless gold (Au) plating layer was obtained.
- Au electroless gold
- An electroless gold (Au) plating circuit having a thickness of 0.1 ⁇ m was obtained in the same manner except that the heating for fluidizing the primer layer of Example 2 was not performed. Since the primer is not fluidized, it is presumed that the metal nanoparticles are not surrounded by the primer layer. When an adhesion test by a cross-cut method was performed on the circuit formed on the substrate, electrode peeling occurred in an area of 80%. Comparison with Example 2 shows that when the primer layer is fluidized, the metal nanoparticles are surrounded by the primer layer, and one end of the metal nanoparticle is connected to the plating deposition layer, thereby exhibiting strong adhesion. [Comparative Example 2]
- palladium (Pd) particles having an average particle size of 3 nm in the palladium (Pd) nanoparticle-containing aqueous solution of Example 3 were included.
- An electroless palladium (Pd) plating layer having a thickness of 0.05 ⁇ m was obtained in the same manner as in Example 3 except that this aqueous solution containing palladium (Pd) nanoparticles was used.
- the deposition of the electroless plating film is not uniform, and there is a portion where the plating film is not partially formed.
- peeling occurred in a region of 40%. From the comparison with Example 3, by aligning the particle size of the metal nanoparticle group and uniformly aligning the metal nanoparticle group on the primer layer, the metal nanoparticle is uniformly surrounded by the primer layer and has a strong adhesion. You can see that
- the metal film produced by the forming method of the present invention can be applied to, for example, an electromagnetic wave prevention film or an electric conductor.
- Patterned metal films obtained by the metal film forming method of the present invention are used for semiconductor chips, semiconductor packages, various electric wiring boards, FPC, COF, TAB, antennas, multilayer wiring substrates, motherboards, various electrodes, etc. It can be applied to various uses.
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Abstract
Description
ス転移温度(Tg)約190℃)、ポリイミド樹脂(ガラス転移温度(Tg)約400℃)などがある。
なわち、理論上9nmがプライマー層中に食い込み、流動化前よりも3nm沈み込んだことになる。
Claims (7)
- 基材上にプライマー層、触媒層およびめっき析出層の3層が積層された断面構造において、当該プライマー層はガラス転移温度(Tg)が40~430℃の樹脂層であり、当該触媒層はプライマー層上に平面に整列された金属ナノ粒子群であり、その金属ナノ粒子群は周
期律表のIB族またはVIIIB族の金属であり、かつ、その金属ナノ粒子がプライマー層に取り囲まれた状態にあり、その一端がめっき析出層と連結していることを特徴とする金属膜の積層構造。 - 上記金属ナノ粒子が金(Au)、銀(Ag)、白金(Pt)またはパラジウム(Pd)のいずれかであることを特徴とする請求項1に記載の金属膜の積層構造。
- 上記金属ナノ粒子の平均粒径が1~100nmであることを特徴とする請求項1または請求項2に記載の金属膜の積層構造。
- 上記金属ナノ粒子の粒径が変動係数C.V.<0.8であることを特徴とする請求項3に記載の金属膜の積層構造。
- 上記プライマー層のガラス転移温度(Tg)が50~350℃であることを特徴とする請求項1~請求項4のいずれか1項に記載の金属膜の積層構造。
- 上記めっき析出層が無電解めっき析出層および電気めっき析出層であることを特徴とする請求項1~請求項5のいずれか1項に記載の金属膜の積層構造。
- 上記プライマー層上に上記触媒層が部分的に配置されており、その上の上記めっき析出層が金属回路を形成していることを特徴とする請求項1~請求項6のいずれか1項に記載の金属膜の積層構造。
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