WO2019150994A1 - 樹脂組成物、樹脂付銅箔、誘電体層、銅張積層板、キャパシタ素子及びキャパシタ内蔵プリント配線板 - Google Patents
樹脂組成物、樹脂付銅箔、誘電体層、銅張積層板、キャパシタ素子及びキャパシタ内蔵プリント配線板 Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/50—Amines
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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
- B32B15/04—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
- B32B15/088—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 comprising polyamides
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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
- B32B15/092—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 comprising epoxy resins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/17—Amines; Quaternary ammonium compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/17—Amines; Quaternary ammonium compounds
- C08K5/18—Amines; Quaternary ammonium compounds with aromatically bound amino groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/10—Polyamides derived from aromatically bound amino and carboxyl groups of amino-carboxylic acids or of polyamines and polycarboxylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
- C08L79/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C08L79/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/40—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes epoxy resins
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/16—Non-insulated conductors or conductive bodies characterised by their form comprising conductive material in insulating or poorly conductive material, e.g. conductive rubber
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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
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/0313—Organic insulating material
- H05K1/0353—Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement
- H05K1/0373—Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement containing additives, e.g. fillers
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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
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/05—Insulated conductive substrates, e.g. insulated metal substrate
- H05K1/056—Insulated conductive substrates, e.g. insulated metal substrate the metal substrate being covered by an organic insulating layer
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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
- H05K1/00—Printed circuits
- H05K1/16—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
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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
- H05K1/00—Printed circuits
- H05K1/16—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor
- H05K1/162—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor incorporating printed capacitors
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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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/01—Dielectrics
- H05K2201/0137—Materials
- H05K2201/0154—Polyimide
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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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/01—Dielectrics
- H05K2201/0137—Materials
- H05K2201/0179—Thin film deposited insulating layer, e.g. inorganic layer for printed capacitor
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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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/01—Dielectrics
- H05K2201/0183—Dielectric layers
- H05K2201/0187—Dielectric layers with regions of different dielectrics in the same layer, e.g. in a printed capacitor for locally changing the dielectric properties
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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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/02—Fillers; Particles; Fibers; Reinforcement materials
- H05K2201/0203—Fillers and particles
- H05K2201/0206—Materials
- H05K2201/0209—Inorganic, non-metallic particles
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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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/02—Fillers; Particles; Fibers; Reinforcement materials
- H05K2201/0203—Fillers and particles
- H05K2201/0206—Materials
- H05K2201/0218—Composite particles, i.e. first metal coated with second metal
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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
- H05K3/02—Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding
- H05K3/022—Processes for manufacturing precursors of printed circuits, i.e. copper-clad substrates
Definitions
- the present invention relates to a resin composition, a copper foil with resin, a dielectric layer, a copper clad laminate, a capacitor element, and a printed wiring board with a built-in capacitor.
- Resin compositions for printed wiring boards with built-in capacitors are known as resin compositions used for the production of copper-clad laminates and printed wiring boards. Such a resin composition functions as a dielectric layer in a capacitor by being cured.
- Patent Document 1 Japanese Patent No. 4148501
- Patent Document 2 International Publication No.
- 2009/008471 discloses that 25 to 60 parts by weight of epoxy resin (as 100 parts by weight of resin component), 28 to 60 parts by weight of active ester resin, and 1 to 2 parts of polyvinyl acetal resin.
- a resin composition for producing a printed wiring board with a built-in capacitor is described, containing 20 parts by weight and containing 65 to 85 wt% of a dielectric filler (as 100 wt% of the resin composition).
- Patent Document 3 Japanese Patent Application Laid-Open No. 2007-231125 discloses a thermosetting resin composition suitable for manufacturing flexible printed wiring boards and the like that require a low dielectric constant and a low dielectric loss tangent in the GHz band. The thing containing a polyimide resin component, an epoxy resin component, an epoxy hardener component, and a filler component is disclosed, and it is described that silica is preferable as the filler.
- Patent Document 4 Japanese Patent Application Laid-Open No. 2010-539285) discloses a composite material used for a capacitor or the like, including a mixture of a polymer component including an epoxy-containing polymer and the like and ferroelectric ceramic particles. It is described that barium titanate or the like is used as the ferroelectric ceramic particles.
- capacitors are important to enable noise reduction, but in order to achieve high performance, such capacitors are desired to be small and thin enough to be incorporated in the inner layer of a printed wiring board. Accordingly, capacity stability that can maintain a desired capacitance even under high temperatures, which is a more severe environment, is desired.
- Inventors of the present invention can use a resin composition containing an epoxy resin, a diamine compound, and a polyimide resin together with a predetermined dielectric filler in a predetermined compounding ratio as a dielectric layer of a capacitor, and thereby have excellent dielectric characteristics and circuit.
- the inventor obtained the knowledge that the decrease in capacitance or the decrease in dielectric constant under high temperature can be suppressed while ensuring the adhesion.
- an object of the present invention is to provide a resin capable of suppressing a decrease in capacitance or a decrease in dielectric constant at high temperatures while ensuring excellent dielectric properties and circuit adhesion when used as a dielectric layer of a capacitor. It is to provide a composition.
- a resin composition comprising: A resin component containing an epoxy resin, a diamine compound, and a polyimide resin; 60 parts by weight or more and 85 parts by weight or less of at least two selected from the group consisting of Ba, Ti, Sr, Pb, Zr, La, Ta, and Bi with respect to 100 parts by weight of the solid content of the resin composition.
- a dielectric filler that is a composite metal oxide; A resin composition is provided.
- a copper foil with a resin including a copper foil and the resin composition provided on at least one surface of the copper foil.
- a dielectric layer which is a layer obtained by curing the resin composition.
- a copper clad laminate comprising a first copper foil, the dielectric layer, and a second copper foil in this order.
- a capacitor element having the dielectric layer is provided.
- a printed wiring board with a built-in capacitor having the dielectric layer.
- a resin component containing an epoxy resin, a diamine compound, and a polyimide resin, and 60 parts by weight or more and 85 parts by weight or less of Ba, based on 100 parts by weight of the solid content of the resin composition A resin composition containing a dielectric filler, which is a composite metal oxide containing at least two selected from the group consisting of Ti, Sr, Pb, Zr, La, Ta and Bi, is applied to copper foil and dried. The manufacturing method of the copper foil with a resin including this is provided.
- FIG. 26 is a diagram showing a production process of a resin-coated copper foil, a copper clad laminate, and an evaluation circuit in Examples 1 to 25.
- the resin composition of the present invention contains a resin component and a dielectric filler.
- This resin component contains an epoxy resin, a diamine compound, and a polyimide resin.
- the dielectric filler is a composite metal oxide containing at least two selected from the group consisting of Ba, Ti, Sr, Pb, Zr, La, Ta, and Bi. And the compounding ratio of a dielectric filler is 60 to 85 weight part with respect to 100 weight part of solid content of a resin composition.
- the dielectric layer containing the resin composition of the present invention inherently has a high capacitance, and the high capacitance is unlikely to decrease even at high temperatures. Nevertheless, the dielectric layer containing the resin composition of the present invention is excellent in circuit adhesion, and circuit peeling in the capacitor hardly occurs.
- the epoxy resin is not particularly limited as long as it has two or more epoxy groups in the molecule and can be used for electric and electronic materials.
- the content of the epoxy resin in the resin composition is preferably 15 parts by weight or more and 80 parts by weight or less, more preferably 40 parts by weight or more and 65 parts by weight or less, and still more preferably 45 parts by weight with respect to 100 parts by weight of the resin component.
- the amount is 60 parts by weight or less.
- epoxy resins include bisphenol A type epoxy resin, bisphenol F type epoxy resin, bisphenol S type epoxy resin, phenol novolac type epoxy resin, biphenyl novolac type epoxy resin, cresol novolac type epoxy resin, alicyclic epoxy resin, glycidyl.
- Examples include amine type epoxy resins, naphthalene type epoxy resins, anthracene type epoxy resins, dicyclopentadiene type epoxy resins, and any combination thereof.
- An aromatic epoxy resin or a polyfunctional epoxy resin is preferable from the viewpoint of maintaining the heat resistance of the cured product, and a phenol novolak type epoxy resin, a naphthalene type epoxy resin, a cresol novolak type epoxy resin, or a biphenyl novolak type epoxy resin is more preferable.
- the diamine compound is not particularly limited as long as it functions as a curing agent for the epoxy resin, has two amino groups in the molecule, and can be used for electrical and electronic materials.
- the preferable content of the diamine compound in the resin composition of the present invention is an amount such that the number of active hydrogen groups of the diamine compound is 0.5 or more and 1.5 or less, more preferably, when the number of epoxy groups of the epoxy resin is 1. Is an amount such that the number of active hydrogen groups of the diamine compound is 0.8 or more and 1.2 or less, more preferably an amount such that the number of active hydrogen groups of the diamine compound is 0.9 or more and 1.1 or less.
- the number of epoxy groups of the epoxy resin is a value obtained by dividing the solid content mass of the epoxy resin present in the resin component by the epoxy equivalent.
- the “number of active hydrogen groups of the diamine compound” is a value obtained by dividing the solid content mass of the diamine compound present in the resin component by the active hydrogen group equivalent.
- diamine compounds examples include 3,4'-diaminodiphenyl sulfide, 4,4'-diaminodiphenyl sulfide, 3,4'-diaminodiphenyl ether, 4,4'-diaminodiphenyl ether, 3,4'-diaminodiphenyl sulfone, 4,4′-diaminodiphenylsulfone, bis [4- (4-aminophenoxy) phenyl] sulfone, bis [4- (3-aminophenoxy) phenyl] sulfone, bis (4-aminophenoxy) biphenyl, bis [4- (4-aminophenoxy) phenyl] ether, 1,4-bis (4-aminophenoxy) benzene, 1,3-bis (4-aminophenoxy) benzene, 2,2-bis [4- (4-aminophenoxy) Phenyl] hexafluoropropan
- a curing accelerator can be added to the resin composition in order to promote the reaction of the resin.
- the curing accelerator include imidazole-based and amine-based curing accelerators.
- the content of the curing accelerator is preferably 0.01 to 3 parts by weight, more preferably 100 parts by weight with respect to 100 parts by weight of the nonvolatile component in the resin composition, from the viewpoint of storage stability of the resin composition and efficiency of curing. 0.1 to 2 parts by weight.
- the imidazole-based curing accelerator is incorporated into the molecular structure as part of the epoxy resin without being released as ions after the curing reaction with the epoxy resin, so that the dielectric properties and insulation reliability of the resin layer may be excellent. it can.
- the content of the imidazole-based curing accelerator is not particularly limited, and may be appropriately determined in an amount that brings about desirable curing while taking into account various conditions such as the composition of the resin layer.
- imidazole curing accelerators examples include 2-undecylimidazole, 2-heptadecylimidazole, 2-ethyl-4-methylimidazole, 2-phenyl-4-methylimidazole, 1-cyanoethyl-2-undecylimidazole, 1 -Cyanoethyl-2-ethyl-4-methylimidazole, 2-ethyl-4-methylimidazole, 1-cyanoethyl-2-phenylimidazole, 2-phenyl-4,5-dihydroxymethylimidazole, 2-phenyl-4-methyl- 5-hydroxymethylimidazole, 2-methylimidazole, 1,2-dimethylimidazole, 2-phenylimidazole, 1-benzyl-2-methylimidazole, 1-benzyl-2-methylimidazole, 1-benzyl-2-phenylimidazole, 1-shear Ethyl-2-methylimidazole, 1-cyanoethyl-2-
- the imidazole curing accelerator examples include 2-methylimidazole, 2-ethyl-4-methylimidazole, 2-phenyl-4-methylimidazole, and 2-phenyl-4-methyl-5-hydroxymethylimidazole.
- 2-phenyl-4-methylimidazole and 2-phenyl-4-methyl which are imidazole-based curing accelerators having a phenyl group, from the viewpoint of chemical stability of the resin layer in a semi-cured (B stage) state.
- a more preferred example is -5-hydroxymethylimidazole.
- 2-phenyl-4-methyl-5-hydroxymethylimidazole is particularly preferable.
- amine curing accelerators examples include trialkylamines such as triethylamine and tributylamine, 4-dimethylaminopyridine, benzyldimethylamine, 2,4,6, -tris (dimethylaminomethyl) phenol, 1,8-diazabicyclo (5,4,0) -undecene, and any combination thereof.
- Polyimide resin contributes to reduction of dielectric loss tangent.
- the content of the polyimide resin in the resin composition is preferably 10 parts by weight or more and 60 parts by weight or less, more preferably 20 parts by weight or more and 40 parts by weight or less, and still more preferably 30 parts by weight with respect to 100 parts by weight of the resin component. It is 40 parts by weight or less. With such a content, excellent dielectric properties can be exhibited while ensuring good heat resistance.
- the polyimide resin is not particularly limited as long as desired dielectric properties, adhesion and heat resistance can be obtained. From the viewpoint of forming a varnish and a coating film that are well compatible with an epoxy resin, a polyimide resin soluble in an organic solvent ( Hereinafter, the organic solvent-soluble polyimide is preferable.
- the organic solvent in which the polyimide resin is soluble preferably has a solubility parameter (SP value) of 7.0 or more and 17.0 or less.
- SP value solubility parameter
- Preferred examples of such an organic solvent include methyl ethyl ketone, toluene, xylene, N -Methylpyrrolidone, dimethylacetamide, dimethylformamide, cyclopentanone, cyclohexanone, cyclohexane, methylcyclohexane, ethylene glycol, ethylene glycol dimethyl ether, ethylene glycol acetate, and any combination thereof.
- those having at least one functional group capable of reacting with an epoxy group at the molecular end are preferred in that heat resistance after curing is maintained.
- the polyimide resin has at least one functional group selected from the group consisting of a carboxyl group, a sulfonic acid group, a thiol group, and a phenolic hydroxyl group as a functional group of the terminal or side chain.
- a functional group selected from the group consisting of a carboxyl group, a sulfonic acid group, a thiol group, and a phenolic hydroxyl group as a functional group of the terminal or side chain.
- a functional group selected from the group consisting of a carboxyl group, a sulfonic acid group, a thiol group, and a phenolic hydroxyl group as a functional group of the terminal or side chain.
- organic solvent-soluble polyimide examples include those obtained by imidizing a tetracarboxylic dianhydride and a diamine compound.
- tetracarboxylic dianhydrides include 2,2-bis (3,4-dicarboxyphenyl) propane dianhydride, 2,2-bis (2,3-dicarboxyphenyl) propane dianhydride, bis (3,4-dicarboxyphenyl) sulfone dianhydride, bis (3,4-dicarboxyphenyl) ether dianhydride, 2,2-bis (3,4-dicarboxyphenyl) hexafluoropropane dianhydride, 2,2-bis [4- (3,4-dicarboxyphenyl) phenyl] propane dianhydride, pyromellitic dianhydride, 3,3 ′, 4,4′-biphenyltetracarboxylic dianhydride, 2 , 3,3 ′, 4′-biphenyltetracarboxy
- 2,2-bis (3,4-dicarboxyphenyl) hexafluoropropane dianhydride 2,2-bis [4- (3,4-) is used to improve the heat resistance of the resin composition.
- examples of the diamine compound include those described above.
- a polyimide resin that can take a range of a dielectric constant of 2.0 or more and 5.0 or less and a dielectric loss tangent of 0.0005 or more and 0.010 or less at a frequency of 1 GHz as a polyimide resin alone is a resin composition of the present invention.
- a polyimide resin that can take a range of a dielectric constant of 2.0 to 4.0 and a dielectric loss tangent of 0.001 to 0.005.
- the dielectric filler is a component that provides a desired high capacitance to the resin composition as the dielectric layer, and is at least 2 selected from the group consisting of Ba, Ti, Sr, Pb, Zr, La, Ta, and Bi. It is a mixed metal oxide containing seeds.
- the composite metal oxide include BaTiO 3 , SrTiO 3 , Pb (Zr, Ti) O 3 , PbLaTiO 3 , PbLaZrO, SrBi 2 that have a high capacitance and can be mixed into the resin composition of the present invention.
- Ta 2 O 9 and particles of any combination thereof may be mentioned, and BaTiO 3 is more preferable.
- Pb (Zr, Ti) O 3 means Pb (Zr x Ti 1-x ) O 3 (where 0 ⁇ x ⁇ 1, typically 0 ⁇ x ⁇ 1).
- the content of the dielectric filler in the resin composition is 60 parts by weight or more and 85 parts by weight or less, preferably 70 parts by weight or more and 85 parts by weight or less, more preferably 100 parts by weight of the solid content of the resin composition. 75 parts by weight or more and 85 parts by weight or less.
- the particle size of the dielectric filler is not particularly limited, but from the viewpoint of maintaining the adhesion between the resin composition and the copper foil, the average particle size D 50 measured by laser diffraction scattering type particle size distribution measurement is 0.01 ⁇ m.
- the thickness is preferably 2.0 ⁇ m or less, more preferably 0.05 ⁇ m or more and 1.0 ⁇ m or less, and still more preferably 0.1 ⁇ m or more and 0.5 ⁇ m or less.
- the resin composition may further contain a filler dispersant.
- a filler dispersant By further including a filler dispersant, the dispersibility of the dielectric filler can be improved when the resin varnish and the dielectric filler are kneaded.
- the filler dispersant known ones that can be used can be appropriately used, and are not particularly limited.
- preferable filler dispersants include ionic dispersants such as phosphonic acid type, cation type, carboxylic acid type, and anionic type dispersants, as well as nonionic dispersants such as ether type, ester type, and sorbitan ester type. , Diester type, monoglyceride type, ethylene oxide addition type, ethylenediamine base type, phenol type dispersant and the like.
- Other examples include coupling agents such as silane coupling agents, titanate coupling agents, and aluminate coupling agents.
- the resin composition of the present invention is preferably used as a resin for a resin-coated copper foil.
- a resin-coated copper foil in advance, it is possible to efficiently manufacture a capacitor element and a capacitor-embedded printed wiring board without separately forming a resin layer or a dielectric layer. That is, according to the preferable aspect of this invention, the copper foil with resin containing copper foil and the resin composition provided in the at least one surface of copper foil is provided.
- the resin composition is in the form of a resin layer, and the resin composition is applied to a copper foil using a gravure coating method so that the thickness of the resin layer after drying becomes a predetermined value. Dry to obtain a copper foil with resin.
- the coating method is arbitrary, but other than the gravure coating method, a die coating method, a knife coating method, or the like can be adopted. In addition, it is also possible to apply using a doctor blade or a bar coater.
- the resin composition in the resin-coated copper foil is preferably semi-cured from the viewpoint of forming a dielectric layer by laminating two resin-coated copper foils so that the resin compositions face each other.
- the thickness of the resin layer is not particularly limited as long as a desired electrostatic capacity can be secured when incorporated in a capacitor as a dielectric layer, but is preferably 0.1 ⁇ m or more and 15 ⁇ m or less, more preferably 0.2 ⁇ m or more. It is 10 ⁇ m or less, particularly preferably 0.5 ⁇ m or more and 5 ⁇ m or less, and most preferably 1 ⁇ m or more and 3 ⁇ m or less. When the thickness is within these ranges, it is easy to achieve high capacitance, easy to form a resin layer by applying a resin composition, and easy to ensure sufficient adhesion with copper foil There is.
- the copper foil may be an electrolytic foil or a rolled metal foil (so-called raw foil), or may be in the form of a surface-treated foil having a surface treatment applied to at least one surface. Also good.
- the surface treatment is various surface treatments performed to improve or impart some property (for example, rust prevention, moisture resistance, chemical resistance, acid resistance, heat resistance, and adhesion to the substrate) on the surface of the metal foil. It can be.
- the surface treatment may be performed on at least one side of the metal foil, or may be performed on both sides of the metal foil. Examples of the surface treatment performed on the copper foil include rust prevention treatment, silane treatment, roughening treatment, barrier formation treatment and the like.
- the ten-point average roughness Rzjis measured in accordance with JIS B0601-2001 on the surface of the copper foil on the resin layer side is preferably 2.0 ⁇ m or less, more preferably 1.5 ⁇ m or less, and even more preferably 1 0.0 ⁇ m or less, particularly preferably 0.5 ⁇ m or less. Within such a range, the resin layer can be made thinner.
- the lower limit of the ten-point average roughness Rzjis on the surface of the resin layer side of the copper foil is not particularly limited, but Rzjis is preferably 0.005 ⁇ m or more, more preferably 0.01 ⁇ m or more from the viewpoint of improving the adhesion with the resin layer. More preferably, it is 0.05 ⁇ m or more.
- the thickness of the copper foil is not particularly limited, but is preferably 0.1 ⁇ m or more and 100 ⁇ m or less, more preferably 0.5 ⁇ m or more and 70 ⁇ m or less, further preferably 2 ⁇ m or more and 70 ⁇ m or less, and particularly preferably 10 ⁇ m or more and 70 ⁇ m or less. Most preferably, it is 10 ⁇ m or more and 35 ⁇ m or less. If the thickness is within these ranges, methods such as MSAP (modified semi-additive), SAP (semi-additive), and subtractive methods, which are general pattern formation methods for wiring formation of printed wiring boards, can be used. It can be adopted.
- MSAP modified semi-additive
- SAP sini-additive
- subtractive methods which are general pattern formation methods for wiring formation of printed wiring boards
- the resin-coated copper foil of the present invention has a resin layer on the copper foil surface of the carrier-attached copper foil provided with a release layer and a carrier for improving handling properties. May be formed.
- the resin composition of the present invention is preferably cured to form a dielectric layer. That is, according to the preferable aspect of this invention, the dielectric material layer which is the layer by which the resin composition of this invention was hardened is provided. Curing of the resin composition may be performed based on a known technique, but is preferably performed by hot vacuum pressing.
- the thickness of the dielectric layer is not particularly limited as long as a desired capacitance can be secured, but is preferably 0.2 ⁇ m or more and 30 ⁇ m or less, more preferably 0.5 ⁇ m or more and 20 ⁇ m or less, and particularly preferably 1 ⁇ m or more and 10 ⁇ m or less. Most preferably, it is 2 ⁇ m or more and 6 ⁇ m or less. When the thickness is within these ranges, it is easy to achieve high capacitance, easy to form a resin layer by applying a resin composition, and easy to ensure sufficient adhesion with copper foil There is.
- Copper-clad laminate The resin composition of the present invention or the dielectric layer containing it is preferably applied to a copper-clad laminate. That is, according to the preferable aspect of this invention, the copper clad laminated board provided with the 1st copper foil, the dielectric material layer mentioned above, and the 2nd copper foil in order is provided. By adopting the form of a copper-clad laminate, it is possible to desirably produce a capacitor element or a capacitor built-in printed wiring board containing the resin composition of the present invention as a dielectric layer.
- the method for producing the copper-clad laminate is not particularly limited.
- the copper-clad laminate is produced by laminating the two resin-coated copper foils such that the resin layers face each other and vacuum-pressing at a high temperature. Can do.
- Capacitor element and capacitor-embedded printed wiring board The resin composition of the present invention or the dielectric layer containing the resin composition is preferably incorporated in the capacitor element. That is, according to a preferred aspect of the present invention, there is provided a capacitor element having the above-described dielectric layer.
- the configuration of the capacitor element is not particularly limited, and a known configuration can be employed.
- a particularly preferred form is a printed wiring board with a built-in capacitor in which a capacitor or a dielectric layer thereof is incorporated as an inner layer portion of the printed wiring board. That is, according to a particularly preferable aspect of the present invention, there is provided a printed wiring board with a built-in capacitor having the above-described dielectric layer.
- a capacitor element and a capacitor built-in printed wiring board can be efficiently manufactured based on a known method.
- the raw material components for resin varnish were weighed at the blending ratios (weight ratios) shown in Tables 1 to 3. Thereafter, the cyclopentanone solvent was weighed, and the raw material components for resin varnish and cyclopentanone were added to the flask and stirred at 60 ° C. After confirming that the resin varnish was transparent, the resin varnish was recovered.
- Circuit formation and evaluation Etching was performed on one side of the obtained copper-clad laminate 8 to form a circuit 10 for various evaluations, and the following various evaluations were performed.
- ⁇ Evaluation 2 Measurement of capacitance> After etching one surface of the copper clad laminate 8 to produce a circular circuit 10 having a diameter of 0.5 inch (12.6 mm), the frequency is measured with an LCR meter (manufactured by Hioki Electric Co., Ltd., LCR HiTester 3532-50). The capacitance at 1 kHz was measured. This measurement was performed according to IPC-TM-650 2.5.2. The results were as shown in Tables 1-3.
- ⁇ Evaluation 4 Measurement of dissipation factor> After etching one surface of the copper clad laminate 8 to produce a circular circuit 10 having a diameter of 0.5 inch (12.6 mm), the frequency is measured with an LCR meter (manufactured by Hioki Electric Co., Ltd., LCR HiTester 3532-50). The dielectric loss tangent at 1 kHz was measured. This measurement was performed according to IPC-TM-650 2.5.2. The results were as shown in Tables 1-3. -Evaluation A: Less than 0.010 (good) -Evaluation B: 0.010 or more and less than 0.020 (possible) -Evaluation C: 0.020 or more (impossible)
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Abstract
Description
エポキシ樹脂、ジアミン化合物、及びポリイミド樹脂を含む樹脂成分と、
前記樹脂組成物の固形分100重量部に対して60重量部以上85重量部以下の、Ba、Ti、Sr、Pb、Zr、La、Ta及びBiからなる群から選択される少なくとも2種を含む複合金属酸化物である誘電体フィラーと、
を含む、樹脂組成物が提供される。
本発明の樹脂組成物は、樹脂成分と、誘電体フィラーとを含む。この樹脂成分は、エポキシ樹脂、ジアミン化合物、及びポリイミド樹脂を含む。一方、誘電体フィラーはBa、Ti、Sr、Pb、Zr、La、Ta及びBiからなる群から選択される少なくとも2種を含む複合金属酸化物である。そして、誘電体フィラーの配合比は、樹脂組成物の固形分100重量部に対して60重量部以上85重量部以下である。このように、エポキシ樹脂、ジアミン化合物、ポリイミド樹脂及び誘電体フィラーを所定の誘電体フィラーと共に所定の配合比で含む樹脂組成物を、キャパシタの誘電体層として用いることで、優れた誘電特性及び回路密着性を確保しながら、高温下におけるキャパシタンス低下ないし誘電率低下を抑制することができる。すなわち、本発明の樹脂組成物を含む誘電体層は本来的に静電容量が高く、高温下においてもその高い静電容量が低下しにくい。そうでありながら、本発明の樹脂組成物を含む誘電体層は回路密着性にも優れており、キャパシタにおける回路剥がれが起こりにくい。
本発明の樹脂組成物は樹脂付銅箔の樹脂として用いられるのが好ましい。予め樹脂付銅箔の形態とすることで、樹脂層ないし誘電体層を別途形成することなく、キャパシタ素子やキャパシタ内蔵プリント配線板の製造を効率良く行うことができる。すなわち、本発明の好ましい態様によれば、銅箔と、銅箔の少なくとも一方の面に設けられた樹脂組成物とを含む、樹脂付銅箔が提供される。典型的には、樹脂組成物は樹脂層の形態であって、樹脂組成物を、銅箔に乾燥後の樹脂層の厚さが所定の値となるようにグラビアコート方式を用いて塗工し乾燥させ、樹脂付銅箔を得る。この塗工の方式については任意であるが、グラビアコート方式の他、ダイコート方式、ナイフコート方式等を採用することができる。その他、ドクターブレードやバーコータ等を使用して塗工することも可能である。樹脂付銅箔における樹脂組成物は、2枚の樹脂付銅箔を樹脂組成物が互いに向かい合うように積層して誘電体層を形成させる観点から、半硬化されているのが好ましい。
本発明の樹脂組成物は硬化されて誘電体層とされるのが好ましい。すなわち、本発明の好ましい態様によれば、本発明の樹脂組成物が硬化された層である、誘電体層が提供される。樹脂組成物の硬化は公知の手法に基づき行えばよいが、熱間真空プレスにより行うのが好ましい。誘電体層の厚さは、所望の静電容量を確保できる限り特に限定されないが、好ましくは0.2μm以上30μm以下であり、より好ましくは0.5μm以上20μm以下、特に好ましくは1μm以上10μm以下、最も好ましくは2μm以上6μm以下である。これらの範囲内の厚さであると、高い静電容量を実現しやすい、樹脂組成物の塗布により樹脂層の形成がしやすい、銅箔との間で十分な密着性を確保しやすいといった利点がある。
本発明の樹脂組成物ないしそれを含む誘電体層は銅張積層板に適用されるのが好ましい。すなわち、本発明の好ましい態様によれば、第一銅箔と、上述した誘電体層と、第二銅箔とを順に備えた、銅張積層板が提供される。銅張積層板の形態とすることで、本発明の樹脂組成物を誘電体層として含むキャパシタ素子やキャパシタ内蔵プリント配線板を望ましく作製することができる。銅張積層板の作製方法は特に限定されないが、例えば、2枚の上述した樹脂付銅箔を樹脂層が互いに向かい合うように積層して高温で真空プレスすることにより銅張積層板を製造することができる。
本発明の樹脂組成物ないしそれを含む誘電体層はキャパシタ素子に組み込まれるのが好ましい。すなわち、本発明の好ましい態様によれば、上述した誘電体層を有する、キャパシタ素子が提供される。キャパシタ素子の構成は特に限定されず、公知の構成が採用可能である。特に好ましい形態は、キャパシタないしその誘電体層がプリント配線板の内層部分として組み込まれた、キャパシタ内蔵プリント配線板である。すなわち、本発明の特に好ましい態様によれば、上述した誘電体層を有する、キャパシタ内蔵プリント配線板が提供される。特に、本発明の樹脂付銅箔を用いることで、キャパシタ素子やキャパシタ内蔵プリント配線板を公知の手法に基づき効率良く製造することができる。
(1)樹脂ワニスの調製
まず、樹脂ワニス用原料成分として、以下に示される樹脂成分、イミダゾール系硬化促進剤、誘電体フィラー及び分散剤を用意した。
‐ エポキシ樹脂:ビフェニル型エポキシ樹脂、日本化薬株式会社製、NC-3000H(ビフェニルアラルキル型、エポキシ当量288g/Eq)
‐ ジアミン化合物:和歌山精化工業株式会社製、BAPP(2,2-ビス[4-(4-アミノフェノキシ)フェニル]プロパン、活性水素基当量102g/Eq)
‐ 活性エステル樹脂:DIC株式会社製、HPC-8000-65T(活性エステル当量223g/Eq)
‐ フェノール樹脂:明和化成株式会社製、MEH-7500(水酸基当量95g/Eq)
‐ 芳香族ポリアミド樹脂:日本化薬株式会社製、BPAM-155(フェノール性水酸基含有ポリブタジエン変性芳香族ポリアミド樹脂)
‐ ポリイミド樹脂:荒川化学工業株式会社製、PIAD-301(末端官能基:カルボキシル基、溶媒:シクロヘキサノン、メチルシクロヘキサン及びエチレングルコールジメチルエーテルの混合液、誘電率(1GHz):2.70、誘電正接(1GHz):0.003)
‐ ブチラール樹脂:積水化学工業株式会社製、KS-5Z
‐ イミダゾール硬化促進剤:四国化成工業株式会社製、2P4MHZ、(樹脂成分100wt%に対して)添加量1.0wt%
‐ 誘電体フィラー:BaTiO3、日本化学工業株式会社製、AKBT-S レーザー回折散乱式粒度分布測定により測定される平均粒径D50=0.3μm
‐ 分散剤:チタネート系カップリング剤、味の素ファインテクノ株式会社製、KR-44
シクロペンタノン溶剤、誘電体フィラー及び分散剤をそれぞれ秤量した。秤量した溶剤、誘電体フィラー及び分散剤を分散機でスラリー化した。このスラリー化が確認できた後、樹脂ワニスを秤量し、分散機で誘電体フィラー含有スラリーとともに混練して、樹脂組成物を得た。
図1に示されるように、得られた樹脂組成物4を、銅箔2(三井金属鉱業株式会社製、厚さ18μm、表面粗さRzjis=0.5μm)に乾燥後の樹脂層の厚さが1.5μmとなるようにバーコーターを用いて塗工し、その後160℃に加熱したオーブンにて3分間乾燥させ、樹脂を半硬化状態とした。こうして樹脂付銅箔6を得た。
図1に示されるように、2枚の樹脂付銅箔6を樹脂組成物4が互いに向かい合うように積層し、圧力40kgf/cm2、200℃で90分間の真空プレスを行い、樹脂組成物4を硬化状態とした。こうして硬化された樹脂組成物4を誘電体層として含み、誘電体層の厚さが3.0μmの銅張積層板8を得た。
得られた銅張積層板8の片面にエッチングを施して各種評価用の回路10を形成し、以下の各種評価を行った。
銅張積層板8の片面にエッチングを施して10mm幅の直線状の回路10を作製した後、オートグラフにて引き剥がし速度50mm/分で回路10を引き剥がし、その剥離強度を測定した。この測定はIPC-TM-650 2.4.8に準拠して行った。測定された剥離強度を以下の基準に従い評価した。結果は表1~3に示されるとおりであった。
‐評価A:0.6kgf/cm以上(良)
‐評価B:0.4kgf/cm以上でかつ0.6kgf/cm未満(可)
‐評価C:0.4kgf/cm未満(不可)
銅張積層板8の片面にエッチングを施して直径0.5インチ(12.6mm)の円形の回路10を作製した後、LCRメーター(日置電機株式会社製、LCRハイテスタ3532-50)にて周波数1kHzにおける静電容量を測定した。この測定はIPC-TM-650 2.5.2に準拠して行った。結果は表1~3に示されるとおりであった。
‐評価A:40nF/in2以上(良)
‐評価B:20nF/in2以上でかつ40nF/in2未満(可)
‐評価C:20nF/in2未満(不可)
評価2が終了したサンプルを230℃のオーブンに110分間投入した後、静電容量を再度測定し、熱処理前後での静電容量の低下率を算出した。さらに、同様の熱処理を繰り返し、熱処理3回での静電容量の低下率を算出し、静電容量低下率を以下の基準に従い評価した。結果は表1~3に示されるとおりであった。
‐評価A:2%未満(良)
‐評価B:2%以上でかつ5%未満(可)
‐評価C:5%以上(不可)
銅張積層板8の片面にエッチングを施して直径0.5インチ(12.6mm)の円形の回路10を作製した後、LCRメーター(日置電機株式会社製、LCRハイテスタ3532-50)にて周波数1kHzにおける誘電正接を測定した。この測定はIPC-TM-650 2.5.2に準拠して行った。結果は表1~3に示されるとおりであった。
‐評価A:0.010未満(良)
‐評価B:0.010以上でかつ0.020未満(可)
‐評価C:0.020以上(不可)
評価1~4の評価結果を以下の基準に当てはめることにより、総合評価を決定した。結果は表1~3に示されるとおりであった。
‐評価A:全ての評価においてA判定となるもの(良)
‐評価B:C判定となるものはないが、一方で、B判定となるものが少なくとも1つあるもの(可)
‐評価C:C判定が少なくとも1つあるもの(不可)
Claims (16)
- 樹脂組成物であって、
エポキシ樹脂、ジアミン化合物、及びポリイミド樹脂を含む樹脂成分と、
前記樹脂組成物の固形分100重量部に対して60重量部以上85重量部以下の、Ba、Ti、Sr、Pb、Zr、La、Ta及びBiからなる群から選択される少なくとも2種を含む複合金属酸化物である誘電体フィラーと、
を含む、樹脂組成物。 - 前記複合金属酸化物が、BaTiO3、SrTiO3、Pb(Zr,Ti)O3、PbLaTiO3、PbLaZrO、及びSrBi2Ta2O9からなる群から選択される少なくとも1種を含む、請求項1に記載の樹脂組成物。
- 前記複合金属酸化物が、BaTiO3である、請求項1又は2に記載の樹脂組成物。
- 前記樹脂組成物の固形分100重量部に対して、前記誘電体フィラーを70重量部以上85重量部以下含む、請求項1~3のいずれか一項に記載の樹脂組成物。
- 前記ジアミン化合物の含有量が、前記エポキシ樹脂のエポキシ基数を1とした場合に、前記ジアミン化合物の活性水素基数が0.5以上1.5以下となる量である、請求項1~4のいずれか一項に記載の樹脂組成物。
- 前記ジアミン化合物の含有量が、前記エポキシ樹脂のエポキシ基数を1とした場合に、前記ジアミン化合物の活性水素基数が0.8以上1.2以下となる量である、請求項1~5のいずれかに一項に記載の樹脂組成物。
- 前記樹脂成分100重量部に対して、前記ポリイミド樹脂を10重量部以上60重量部以下含む、請求項1~6のいずれか一項に記載の樹脂組成物。
- 前記樹脂成分100重量部に対して、前記ポリイミド樹脂を20重量部以上40重量部以下含む、請求項1~7のいずれか一項に記載の樹脂組成物。
- 銅箔と、前記銅箔の少なくとも一方の面に設けられた請求項1~8のいずれか一項に記載の樹脂組成物とを含む、樹脂付銅箔。
- 請求項1~8のいずれか一項に記載の樹脂組成物が硬化された層である、誘電体層。
- 前記誘電体層の厚さが、0.2μm以上30μm以下である、請求項10に記載の誘電体層。
- 前記誘電体層の厚さが、1μm以上10μm以下である、請求項10に記載の誘電体層。
- 第一銅箔と、請求項10~12のいずれか一項に記載の誘電体層と、第二銅箔とを順に備えた、銅張積層板。
- 請求項10~12のいずれか一項に記載の誘電体層を有する、キャパシタ素子。
- 請求項10~12のいずれか一項に記載の誘電体層を有する、キャパシタ内蔵プリント配線板。
- エポキシ樹脂、ジアミン化合物、及びポリイミド樹脂を含む樹脂成分と、樹脂組成物の固形分100重量部に対して60重量部以上85重量部以下の、Ba、Ti、Sr、Pb、Zr、La、Ta及びBiからなる群から選択される少なくとも2種を含む複合金属酸化物である誘電体フィラーとを含む樹脂組成物を、銅箔に塗工し乾燥させることを含む、樹脂付銅箔の製造方法。
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| KR1020207014269A KR102660753B1 (ko) | 2018-02-01 | 2019-01-18 | 수지 조성물, 수지를 구비하는 구리박, 유전체층, 동장 적층판, 커패시터 소자 및 커패시터 내장 프린트 배선판 |
| JP2019569002A JP7061632B2 (ja) | 2018-02-01 | 2019-01-18 | 樹脂組成物、樹脂付銅箔、誘電体層、銅張積層板、キャパシタ素子及びキャパシタ内蔵プリント配線板 |
| US16/966,570 US12297354B2 (en) | 2018-02-01 | 2019-01-18 | Resin composition, copper foil with resin, dielectric layer, copper-clad laminate, capacitor element, and printed wiring board with built-in capacitor |
| SG11202007290XA SG11202007290XA (en) | 2018-02-01 | 2019-01-18 | Resin composition, copper foil with resin, dielectric layer, copper-clad laminate, capacitor element, and printed wiring board with built-in capacitor |
| MYPI2020003912A MY198438A (en) | 2018-02-01 | 2019-01-18 | Resin Composition, Copper Foil with Resin, Dielectric Layer, Copper-Clad Laminate, Capacitor Element, and Printed Wiring Board with Built-In Capacitor |
| CN201980005699.1A CN111344351B (zh) | 2018-02-01 | 2019-01-18 | 树脂组合物、带树脂铜箔、介电层、覆铜层叠板、电容器元件以及内置电容器的印刷电路板 |
| JP2021202352A JP7656530B2 (ja) | 2018-02-01 | 2021-12-14 | 樹脂組成物、樹脂付銅箔、誘電体層、銅張積層板、キャパシタ素子及びキャパシタ内蔵プリント配線板 |
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| JP (2) | JP7061632B2 (ja) |
| KR (1) | KR102660753B1 (ja) |
| CN (1) | CN111344351B (ja) |
| MY (1) | MY198438A (ja) |
| SG (1) | SG11202007290XA (ja) |
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| WO2024088848A1 (de) * | 2022-10-24 | 2024-05-02 | Siemens Aktiengesellschaft | Formulierung für ein isolationssystem, verwendung dazu und formkörper |
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| WO2025062940A1 (ja) * | 2023-09-19 | 2025-03-27 | 東レ株式会社 | 樹脂組成物、圧電膜付き基板、圧電膜付き基板の製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| US12297354B2 (en) | 2025-05-13 |
| TWI787442B (zh) | 2022-12-21 |
| CN111344351B (zh) | 2024-02-09 |
| JP2022058356A (ja) | 2022-04-12 |
| SG11202007290XA (en) | 2020-08-28 |
| KR20200116450A (ko) | 2020-10-12 |
| JPWO2019150994A1 (ja) | 2020-04-02 |
| JP7656530B2 (ja) | 2025-04-03 |
| KR102660753B1 (ko) | 2024-04-26 |
| MY198438A (en) | 2023-08-29 |
| TW201934627A (zh) | 2019-09-01 |
| US20200362169A1 (en) | 2020-11-19 |
| JP7061632B2 (ja) | 2022-04-28 |
| CN111344351A (zh) | 2020-06-26 |
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