WO2023224021A1 - 樹脂組成物、プリプレグ、積層板、樹脂フィルム、プリント配線板及び半導体パッケージ - Google Patents
樹脂組成物、プリプレグ、積層板、樹脂フィルム、プリント配線板及び半導体パッケージ Download PDFInfo
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- WO2023224021A1 WO2023224021A1 PCT/JP2023/018197 JP2023018197W WO2023224021A1 WO 2023224021 A1 WO2023224021 A1 WO 2023224021A1 JP 2023018197 W JP2023018197 W JP 2023018197W WO 2023224021 A1 WO2023224021 A1 WO 2023224021A1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
- C08F222/36—Amides or imides
- C08F222/40—Imides, e.g. cyclic imides
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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
- C08L79/085—Unsaturated polyimide precursors
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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
- B32B15/082—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 vinyl resins; comprising acrylic resins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F212/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F265/00—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
- C08F265/10—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of amides or imides
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/04—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polycarbonamides, polyesteramides or polyimides
- C08F283/045—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polycarbonamides, polyesteramides or polyimides on to unsaturated polycarbonamides, polyesteramides or polyimides
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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
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- C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
- C08G73/12—Unsaturated polyimide precursors
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
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- C08G73/12—Unsaturated polyimide precursors
- C08G73/126—Unsaturated polyimide precursors the unsaturated precursors being wholly aromatic
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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- C08J5/18—Manufacture of films or sheets
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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- C08J5/24—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
- C08J5/241—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs using inorganic fibres
- C08J5/244—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs using inorganic fibres using glass fibres
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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- C08J5/24—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
- C08J5/249—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs characterised by the additives used in the prepolymer mixture
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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
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/04—Condensation polymers of aldehydes or ketones with phenols only
- C08L61/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
- C08L61/14—Modified phenol-aldehyde condensates
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
- C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
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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
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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
- H05K1/0366—Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement reinforced, e.g. by fibres, fabrics
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W70/00—Package substrates; Interposers; Redistribution layers [RDL]
- H10W70/60—Insulating or insulated package substrates; Interposers; Redistribution layers
- H10W70/67—Insulating or insulated package substrates; Interposers; Redistribution layers characterised by their insulating layers or insulating parts
- H10W70/69—Insulating materials thereof
- H10W70/695—Organic materials
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W74/00—Encapsulations, e.g. protective coatings
- H10W74/10—Encapsulations, e.g. protective coatings characterised by their shape or disposition
- H10W74/111—Encapsulations, e.g. protective coatings characterised by their shape or disposition the semiconductor body being completely enclosed
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W74/00—Encapsulations, e.g. protective coatings
- H10W74/40—Encapsulations, e.g. protective coatings characterised by their materials
- H10W74/47—Encapsulations, e.g. protective coatings characterised by their materials comprising organic materials, e.g. plastics or resins
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
- B32B2457/08—PCBs, i.e. printed circuit boards
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- C—CHEMISTRY; METALLURGY
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F12/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
- C08F12/02—Monomers containing only one unsaturated aliphatic radical
- C08F12/04—Monomers containing only one unsaturated aliphatic radical containing one ring
- C08F12/14—Monomers containing only one unsaturated aliphatic radical containing one ring substituted by hetero atoms or groups containing heteroatoms
- C08F12/22—Oxygen
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- C08F12/02—Monomers containing only one unsaturated aliphatic radical
- C08F12/32—Monomers containing only one unsaturated aliphatic radical containing two or more rings
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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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
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Definitions
- the present embodiment relates to a resin composition, a prepreg, a laminate, a resin film, a printed wiring board, and a semiconductor package.
- the speed and capacity of signals used in mobile communication devices such as mobile phones, network infrastructure devices such as base station equipment, servers and routers, and electronic devices such as large computers are increasing year by year.
- substrate materials, semiconductor sealing materials, etc. mounted on these electronic devices have dielectric properties (hereinafter sometimes referred to as "high frequency properties") that can reduce transmission loss of high frequency signals. ], that is, a low dielectric constant and a low dielectric loss tangent are required.
- Substrate materials, semiconductor sealing materials, etc. are required to have heat resistance that can withstand the usage environment.
- Maleimide resin which is one type of thermosetting resin, has excellent heat resistance and mechanical properties and is therefore applied to substrate materials for printed wiring boards, etc. (for example, Patent Document 1).
- maleimide resin contains many polar groups, it has a problem of poor dielectric properties, and improvements are needed.
- the present embodiment aims to provide a resin composition with excellent dielectric properties, a prepreg, a laminate, a resin film, a printed wiring board, and a semiconductor package using the resin composition.
- A One or more types selected from the group consisting of maleimide resins having one or more N-substituted maleimide groups and derivatives thereof;
- B a compound having a vinylbenzyl group;
- the component (B) is selected from the group consisting of (B1) a compound having three or more vinylbenzyl groups bonded to an oxygen atom, and (B2) a compound having one or more vinylbenzyl groups bonded to a carbon atom.
- the component (B) contains the component (B1), The resin composition according to [1] above, wherein the component (B1) is a compound containing a structural unit represented by the following general formula (B-1).
- the component (B) contains the component (B2), The resin composition according to [1] above, wherein the component (B2) is a compound containing a fused polycyclic structure containing an aromatic ring and a non-aromatic ring.
- the resin composition according to [3] above, wherein the fused polycyclic structure containing an aromatic ring and a non-aromatic ring is an indene ring.
- a laminate comprising a cured product of the resin composition according to any one of [1] to [6] above and metal foil.
- a printed wiring board comprising a cured product of the resin composition according to any one of [1] to [6] above.
- a semiconductor package comprising the printed wiring board according to [10] above and a semiconductor element.
- a semiconductor package comprising a semiconductor element and a cured product of the resin composition according to any one of [1] to [6] above, which seals the semiconductor element.
- a resin composition with excellent dielectric properties a prepreg, a laminate, a resin film, a printed wiring board, and a semiconductor package using the resin composition can be provided.
- a numerical range indicated using “ ⁇ ” indicates a range that includes the numerical values written before and after " ⁇ " as the minimum and maximum values, respectively.
- the notation of a numerical range "X to Y" means a numerical range that is greater than or equal to X and less than or equal to Y.
- the expression “X or more” means X and a numerical value exceeding X.
- the description "Y or less” in this specification means Y and a numerical value less than Y.
- the lower and upper limits of the numerical ranges described herein can be arbitrarily combined with the lower and upper limits of other numerical ranges, respectively. In the numerical ranges described in this specification, the lower limit or upper limit of the numerical range may be replaced with the values shown in the examples.
- each component and material illustrated in this specification may be used alone or in combination of two or more, unless otherwise specified.
- the content of each component in the resin composition refers to the content of each component in the resin composition, unless otherwise specified. means the total amount of
- solid content means non-volatile content excluding volatile substances such as solvents. That is, the “solid content” is a component that remains without being volatilized when the resin composition is dried, and includes components that are liquid, starch syrup-like, and wax-like at room temperature.
- room temperature means 25°C.
- the weight average molecular weight (Mw) and number average molecular weight (Mn) in this specification mean values measured in terms of polystyrene by gel permeation chromatography (GPC). Specifically, the weight average molecular weight (Mw) and number average molecular weight (Mn) in this specification can be measured by the method described in Examples.
- si-cured product has the same meaning as a resin composition in the B-stage state according to JIS K 6800 (1985), and "cured product” means C-stage according to JIS K 6800 (1985). It has the same meaning as a resin composition in a stage state.
- This embodiment also includes aspects in which the items described in this specification are arbitrarily combined.
- the resin composition of this embodiment is (A) one or more selected from the group consisting of maleimide resins having one or more N-substituted maleimide groups and derivatives thereof; (B) a compound having a vinylbenzyl group; The component (B) is selected from the group consisting of (B1) a compound having three or more vinylbenzyl groups bonded to an oxygen atom, and (B2) a compound having one or more vinylbenzyl groups bonded to a carbon atom. It is a resin composition containing one or more types.
- each component may be abbreviated as (A) component, (B) component, etc., respectively, and other components may also be abbreviated in the same manner.
- the maleimide resin is one or more selected from the group consisting of maleimide resins having one or more N-substituted maleimide groups and derivatives of the maleimide resins.
- the maleimide resins may be used alone or in combination of two or more.
- a maleimide resin having one or more N-substituted maleimide groups may be referred to as a "maleimide resin (AX)” or “(AX) component.”
- a maleimide resin derivative having one or more N-substituted maleimide groups may be referred to as a “maleimide resin derivative (AY)” or “(AY) component.”
- the maleimide resin (AX) is not particularly limited as long as it has one or more N-substituted maleimide groups.
- the maleimide resin (AX) is preferably an aromatic maleimide resin having two or more N-substituted maleimide groups, and an aromatic bismaleimide resin having two or more N-substituted maleimide groups. More preferably, it is a resin.
- aromatic maleimide resin refers to a compound having an N-substituted maleimide group directly bonded to an aromatic ring.
- aromatic bismaleimide resin means a compound having two N-substituted maleimide groups directly bonded to an aromatic ring.
- aromatic polymaleimide resin means a compound having three or more N-substituted maleimide groups directly bonded to an aromatic ring.
- aliphatic maleimide resin means a compound having an N-substituted maleimide group directly bonded to an aliphatic hydrocarbon.
- maleimide resin (AX) a maleimide resin represented by the following general formula (A-1) is preferable.
- X A1 is a divalent organic group.
- X A1 in the above general formula (A-1) is a divalent organic group.
- R A1 is an aliphatic hydrocarbon group having 1 to 5 carbon atoms or a halogen atom.
- n A1 is an integer of 0 to 4. * represents a bonding site.
- Examples of the aliphatic hydrocarbon group having 1 to 5 carbon atoms represented by R A1 in the above general formula (A-2) include methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, and isobutyl group.
- Examples include alkyl groups having 1 to 5 carbon atoms such as t-butyl group, n-pentyl group; alkenyl groups having 2 to 5 carbon atoms; and alkynyl groups having 2 to 5 carbon atoms.
- the aliphatic hydrocarbon group having 1 to 5 carbon atoms may be linear or branched.
- the aliphatic hydrocarbon group having 1 to 5 carbon atoms is preferably an aliphatic hydrocarbon group having 1 to 3 carbon atoms, more preferably an alkyl group having 1 to 3 carbon atoms, and even more preferably a methyl group.
- the halogen atom include a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, and the like.
- n A1 in the general formula (A-2) is an integer of 0 to 4, preferably an integer of 0 to 2, more preferably 0 or 1, and even more preferably 0 from the viewpoint of availability.
- the plurality of R A1 's may be the same or different.
- R A2 and R A3 are each independently an aliphatic hydrocarbon group having 1 to 5 carbon atoms or a halogen atom.
- X A2 is an alkylene group having 1 to 5 carbon atoms, An alkylidene group, an ether group, a sulfide group, a sulfonyl group, a carbonyloxy group, a keto group, a single bond, or a divalent organic group represented by the following general formula (A-3-1).
- n A2 and n A3 are each independently an integer from 0 to 4. * represents a binding site.
- Examples of the aliphatic hydrocarbon group having 1 to 5 carbon atoms represented by R A2 and R A3 in the above general formula (A-3) include methyl group, ethyl group, n-propyl group, isopropyl group, and n-butyl group.
- Examples include alkyl groups having 1 to 5 carbon atoms, such as isobutyl group, t-butyl group, and n-pentyl group; alkenyl groups having 2 to 5 carbon atoms; and alkynyl groups having 2 to 5 carbon atoms.
- the aliphatic hydrocarbon group having 1 to 5 carbon atoms may be linear or branched.
- the aliphatic hydrocarbon group having 1 to 5 carbon atoms is preferably an aliphatic hydrocarbon group having 1 to 3 carbon atoms, more preferably an alkyl group having 1 to 3 carbon atoms, and even more preferably a methyl group or an ethyl group.
- the halogen atom include a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, and the like.
- alkylene group having 1 to 5 carbon atoms represented by group, 1,5-pentamethylene group, and the like.
- the alkylene group having 1 to 5 carbon atoms is preferably an alkylene group having 1 to 3 carbon atoms, more preferably an alkylene group having 1 or 2 carbon atoms, and even more preferably a methylene group.
- n A2 and n A3 in the above general formula (A-3) are each independently an integer of 0 to 4.
- nA2 or nA3 is an integer of 2 or more, the plurality of R A2s or the plurality of R A3s may be the same or different.
- the divalent organic group represented by the general formula (A-3-1) represented by X A2 in the above general formula (A-3) is as follows.
- R A4 and R A5 are each independently an aliphatic hydrocarbon group having 1 to 5 carbon atoms or a halogen atom.
- X A3 is an alkylene group having 1 to 5 carbon atoms, It is an alkylidene group, an ether group, a sulfide group, a sulfonyl group, a carbonyloxy group, a keto group, or a single bond.
- n A4 and n A5 are each independently an integer of 0 to 4. * represents a bonding site.
- Examples of the aliphatic hydrocarbon groups having 1 to 5 carbon atoms represented by R A4 and R A5 in the above general formula (A-3-1) include methyl group, ethyl group, n-propyl group, isopropyl group, n Examples include alkyl groups having 1 to 5 carbon atoms such as -butyl group, isobutyl group, t-butyl group, and n-pentyl group; alkenyl groups having 2 to 5 carbon atoms; and alkynyl groups having 2 to 5 carbon atoms.
- the aliphatic hydrocarbon group having 1 to 5 carbon atoms may be linear or branched.
- the aliphatic hydrocarbon group having 1 to 5 carbon atoms is preferably an aliphatic hydrocarbon group having 1 to 3 carbon atoms, more preferably an alkyl group having 1 to 3 carbon atoms, and even more preferably a methyl group.
- the halogen atom include a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, and the like.
- Examples of the alkylene group having 1 to 5 carbon atoms represented by X A3 in the above general formula (A-3-1) include methylene group, 1,2-dimethylene group, 1,3-trimethylene group, Examples include a tetramethylene group and a 1,5-pentamethylene group.
- the alkylene group having 1 to 5 carbon atoms is preferably an alkylene group having 1 to 3 carbon atoms, more preferably an alkylene group having 1 or 2 carbon atoms, and even more preferably a methylene group.
- Examples of the alkylidene group having 2 to 5 carbon atoms represented by Examples include lydene group. Among these, an alkylidene group having 2 to 4 carbon atoms is preferred, an alkylidene group having 2 or 3 carbon atoms is more preferred, and an isopropylidene group is even more preferred.
- n A4 and n A5 in the above general formula (A-3-1) are each independently an integer of 0 to 4, and from the viewpoint of availability, both are preferably integers of 0 to 2, more preferably Preferably it is 0 or 1, more preferably 0.
- n A4 or n A5 is an integer of 2 or more, the plurality of R A4s or the plurality of R A5s may be the same or different.
- X A2 in the above general formula (A-3) is an alkylene group having 1 to 5 carbon atoms, an alkylidene group having 2 to 5 carbon atoms, and a group represented by the above general formula (A-3-1).
- a divalent organic group having 1 to 5 carbon atoms is preferred, an alkylene group having 1 to 5 carbon atoms is more preferred, and a methylene group is even more preferred.
- n A6 is an integer from 0 to 10. * represents the binding site.
- n A6 in the above general formula (A-4) is preferably an integer of 0 to 5, more preferably an integer of 0 to 4, and still more preferably an integer of 0 to 3, from the viewpoint of availability.
- n A7 is a number from 0 to 5. * represents the binding site.
- R A6 and R A7 are each independently a hydrogen atom or an aliphatic hydrocarbon group having 1 to 5 carbon atoms.
- n A8 is an integer of 1 to 8. * represents a bonding site.
- Examples of the aliphatic hydrocarbon group having 1 to 5 carbon atoms represented by R A6 and R A7 in the above general formula (A-6) include methyl group, ethyl group, n-propyl group, isopropyl group, and n-butyl group.
- Examples include alkyl groups having 1 to 5 carbon atoms, such as isobutyl group, t-butyl group, and n-pentyl group; alkenyl groups having 2 to 5 carbon atoms; and alkynyl groups having 2 to 5 carbon atoms.
- the aliphatic hydrocarbon group having 1 to 5 carbon atoms may be linear or branched.
- n A8 in the above general formula (A-6) is an integer of 1 to 8, preferably an integer of 1 to 5, more preferably an integer of 1 to 3, and even more preferably 1.
- n A8 is an integer of 2 or more, the plurality of R A6s or the plurality of R A7s may be the same or different.
- R A8 is an alkyl group having 1 to 10 carbon atoms, an alkyloxy group having 1 to 10 carbon atoms, an alkylthio group having 1 to 10 carbon atoms, an aryl group having 6 to 10 carbon atoms, or an aryl group having 6 to 10 carbon atoms. is an aryloxy group, an arylthio group having 6 to 10 carbon atoms, a cycloalkyl group having 3 to 10 carbon atoms, a halogen atom, a hydroxyl group, or a mercapto group, and n A9 is an integer of 0 to 3.
- R A9 to R A11 are each independently an alkyl group having 1 to 10 carbon atoms.
- R A12 is each independently an alkyl group having 1 to 10 carbon atoms, an alkyloxy group having 1 to 10 carbon atoms, or an alkyl group having 1 to 10 carbon atoms.
- Examples of the alkyl group having 1 to 10 carbon atoms represented by R A8 in the above general formula (A-7) include methyl group, ethyl group, propyl group, butyl group, pentyl group, hexyl group, heptyl group, Examples include octyl group and decyl group. These alkyl groups may be linear or branched.
- the alkyl group contained in the alkyloxy group having 1 to 10 carbon atoms and the alkylthio group having 1 to 10 carbon atoms represented by R A8 includes the same alkyl groups as the above-mentioned alkyl groups having 1 to 10 carbon atoms.
- Examples of the aryl group having 6 to 10 carbon atoms represented by R A8 include phenyl group and naphthyl group.
- the aryl group contained in the aryloxy group having 6 to 10 carbon atoms and the arylthio group having 6 to 10 carbon atoms represented by R A8 includes the same aryl groups as the above-mentioned aryl group having 6 to 10 carbon atoms.
- Examples of the cycloalkyl group having 3 to 10 carbon atoms represented by R A8 include cyclopropyl group, cyclobutyl group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclooctyl group, cyclodecyl group, and the like.
- n A9 in the above general formula (A-7) is an integer of 1 to 3
- R A8 is an alkyl group having 1 to 4 carbon atoms, or an alkyl group having 3 to 6 carbon atoms, from the viewpoint of solvent solubility and reactivity.
- a cycloalkyl group having 6 to 10 carbon atoms is preferable, and an alkyl group having 1 to 4 carbon atoms is more preferable.
- Examples of the alkyl group having 1 to 10 carbon atoms represented by R A9 to R A11 include methyl group, ethyl group, propyl group, butyl group, pentyl group, hexyl group, heptyl group, octyl group, decyl group, etc. Can be mentioned. These alkyl groups may be linear or branched. Among these, R A9 to R A11 are preferably an alkyl group having 1 to 4 carbon atoms, more preferably a methyl group or an ethyl group, and even more preferably a methyl group.
- n A9 in the above general formula (A-7) is an integer from 0 to 3, and when n A9 is 2 or 3, multiple R A8s may be the same or different. Good too.
- the divalent organic group represented by the above general formula (A-7) is preferred from the viewpoints of compatibility with other resins, solvent solubility, dielectric properties, adhesion with conductors, and ease of manufacture. Therefore, it is preferable that n A9 is 0 and R A9 to R A11 are divalent organic groups, which are methyl groups.
- the plurality of R A8s , the plurality of R A12s , the plurality of n A9s , and the plurality of n A10s may be the same or different. good. Further, when n A11 exceeds 1, the plurality of RA9s , the plurality of RA10s , and the plurality of RA11s may be the same or different.
- R A12 represents an alkyl group having 1 to 10 carbon atoms, an alkyloxy group having 1 to 10 carbon atoms, an alkylthio group having 1 to 10 carbon atoms, an aryl group having 6 to 10 carbon atoms , an aryloxy group having 6 to 10 carbon atoms, an arylthio group having 6 to 10 carbon atoms, and a cycloalkyl group having 3 to 10 carbon atoms.
- R A12 is selected from the viewpoints of compatibility with other resins, solvent solubility, dielectric properties, adhesion to conductors, and ease of manufacture, including alkyl groups having 1 to 4 carbon atoms, A cycloalkyl group having 6 carbon atoms and an aryl group having 6 to 10 carbon atoms are preferred, and an alkyl group having 1 to 3 carbon atoms is more preferred.
- n A10 in the above general formula (A-7) is an integer from 0 to 4, and from the viewpoint of compatibility with other resins, solvent solubility, dielectric properties, adhesiveness with conductors, and ease of manufacture. , preferably an integer from 0 to 3, more preferably 0 or 2.
- n A10 when n A10 is 1 or more, the benzene ring and the N-substituted maleimide group have a twisted conformation, which tends to further improve solvent solubility by suppressing intermolecular stacking.
- the substitution position of R A12 is preferably the ortho position with respect to the N-substituted maleimide group.
- n A11 in the above general formula (A-7) is preferably 0.98 to 8.0, from the viewpoint of compatibility with other resins, solvent solubility, melt viscosity, handling property, and heat resistance. It is preferably 1.0 to 7.0, more preferably 1.1 to 6.0.
- the divalent organic group represented by the above general formula (A-7) is a divalent organic group represented by the following general formula (A-7-1), and the divalent organic group represented by the following general formula (A-7-2).
- a divalent organic group represented by the following general formula (A-7-3), a divalent organic group represented by the following general formula (A-7-4), etc. Preferably.
- n A11 is the same as in the above general formula (A-7). * represents the binding site.
- X A1 is a maleimide resin having a divalent organic group represented by the above general formula (A-3); A maleimide resin having a divalent organic group represented by formula (A-7) is preferred.
- maleimide resin (AX) examples include aromatic bismaleimide resins, aromatic polymaleimide resins, aliphatic maleimide resins, and the like, and among these, aromatic bismaleimide resins are preferred.
- Specific examples of maleimide resin (AX) include N,N'-ethylene bismaleimide, N,N'-hexamethylene bismaleimide, N,N'-(1,3-phenylene)bismaleimide, N,N'- [1,3-(2-methylphenylene)]bismaleimide, N,N'-[1,3-(4-methylphenylene)]bismaleimide, N,N'-(1,4-phenylene)bismaleimide, Bis(4-maleimidophenyl)methane, bis(3-methyl-4-maleimidophenyl)methane, 3,3'-dimethyl-5,5'-diethyl-4,4'-diphenylmethanebismaleimide, bis(4-maleimide) phenyl
- maleimide resin derivative (AY) As the maleimide resin derivative (AY), an aminomaleimide resin containing a structural unit derived from the above maleimide resin (AX) and a structural unit derived from a diamine compound is preferable.
- the structural unit derived from the maleimide resin (AX) contained in the aminomaleimide resin for example, among the N-substituted maleimide groups that the maleimide resin (AX) has, at least one N-substituted maleimide group is an amino group that the diamine compound has. Examples include structural units formed by Michael addition reaction with groups.
- the number of structural units derived from the maleimide resin (AX) contained in the aminomaleimide resin may be one type alone, or two or more types may be used.
- the structural unit derived from the diamine compound contained in the aminomaleimide resin for example, one or both of the two amino groups possessed by the diamine compound are the N-substituted maleimide group possessed by the maleimide resin (AX). Examples include structural units formed by Michael addition reactions.
- the number of structural units derived from the diamine compound contained in the aminomaleimide resin may be one type alone, or two or more types may be used.
- diamine compounds examples include 4,4'-diaminodiphenylmethane, 3,3'-dimethyl-4,4'-diaminodiphenylmethane, 3,3'-diethyl-4,4'-diaminodiphenylmethane, and 4,4'-diaminodiphenylmethane.
- Diaminodiphenyl ether 4,4'-diaminodiphenylsulfone, 3,3'-diaminodiphenylsulfone, 4,4'-diaminodiphenyl ketone, 4,4'-diaminobiphenyl, 3,3'-dimethyl-4,4'- Diaminobiphenyl, 2,2'-dimethyl-4,4'-diaminobiphenyl, 3,3'-dihydroxybenzidine, 2,2-bis(3-amino-4-hydroxyphenyl)propane, 3,3'-dimethyl- 5,5'-diethyl-4,4'-diaminodiphenylmethane, 2,2-bis(4-aminophenyl)propane, 2,2-bis[4-(4-aminophenoxy)phenyl]propane, 1,3- Bis(3-aminophenoxy)benzene, 1,3-bis(4-aminophenoxy)benzene, 1,
- the content of (A) maleimide resin in the resin composition of this embodiment is not particularly limited, but is preferably 10 ⁇ 90% by weight, more preferably 15 ⁇ 85% by weight, even more preferably 20 ⁇ 80% by weight.
- the "resin component” means a resin and a compound that forms a resin through a curing reaction.
- component (A) and component (B) correspond to resin components.
- the resin composition of this embodiment contains, as an optional component, a resin or a compound that forms a resin through a curing reaction in addition to the above-mentioned components, these optional components are also included in the resin component.
- a compound having a vinylbenzyl group (hereinafter also referred to as "(B) vinylbenzyl compound”) includes (B1) a compound having three or more vinylbenzyl groups bonded to an oxygen atom, and (B2) a compound having three or more vinylbenzyl groups bonded to a carbon atom. It contains one or more types selected from the group consisting of compounds having one or more bonding vinylbenzyl groups.
- the vinyl group which is a reactive group possessed by the vinylbenzyl compound (B), has lower polarity than the N-substituted maleimide group possessed by the component (A). Therefore, the resin composition of this embodiment containing the vinylbenzyl compound (B) can exhibit excellent dielectric properties.
- Component (B) may be used alone or in combination of two or more.
- the vinylbenzyl group contained in component (B) may be any of o-vinylbenzyl group, m-vinylbenzyl group, or p-vinylbenzyl group, but from the viewpoint of dielectric properties, p-vinylbenzyl group is preferable. .
- the content of p-vinylbenzyl groups in all the vinylbenzyl groups contained in component (B) is not particularly limited, but from the viewpoint of low dielectric loss tangent, it is preferably 10 to 100% by mass, more preferably 15 to 95% by mass. %, more preferably 20 to 90% by weight, particularly preferably 25 to 85% by weight.
- Component (B1) is not particularly limited as long as it is a compound having three or more vinylbenzyl groups directly bonded to an oxygen atom.
- the resin composition of the present embodiment can obtain excellent dielectric properties and improve curability.
- the number of vinylbenzyl groups bonded to oxygen atoms contained in one molecule of component (B1) is 3 or more, and from the viewpoint of solvent solubility, preferably 50 or less, more preferably 30 or less.
- the weight average molecular weight (Mw) of component (B1) is not particularly limited, but from the viewpoint of moldability and handleability, it is preferably 300 to 50,000, more preferably 500 to 30,000, and even more preferably 1,000. ⁇ 10,000.
- Component (B) contains component (B1), and component (B1) is a compound containing a structural unit represented by the following general formula (B1-1) from the viewpoint of curability, moldability, and handleability. It is preferable.
- the component (B1) containing the structural unit represented by the above general formula (B1-1) is preferably a compound represented by the following general formula (B1-2).
- each X B1 is independently a divalent hydrocarbon group, and n B1 is an integer from 1 to 5.
- Examples of the divalent hydrocarbon group represented by X B1 in the above general formula (B1-2) include an alkylene group having 1 to 5 carbon atoms, an alkylidene group having 2 to 5 carbon atoms, and Examples include a valent alicyclic hydrocarbon group, an arylene group having 6 to 12 carbon atoms, and a divalent group combining these.
- Examples of the alkylene group having 1 to 5 carbon atoms include a methylene group, a 1,2-dimethylene group, a 1,3-trimethylene group, a 1,4-tetramethylene group, and a 1,5-pentamethylene group.
- Examples of the alkylidene group having 2 to 5 carbon atoms include ethylidene group, propylidene group, isopropylidene group, butylidene group, isobutylidene group, pentylidene group, and isopentylidene group.
- Examples of divalent alicyclic hydrocarbon groups having 5 to 12 carbon atoms include two groups bonded to two different carbon atoms from alicyclic hydrocarbon compounds such as norbornane, decalin, bicycloundecane, and saturated dicyclopentadiene. Examples include divalent groups that result from the loss of a hydrogen atom.
- Examples of the arylene group having 6 to 12 carbon atoms include a phenylene group, a naphthylene group, and a biphenylene group.
- X B1 is preferably a group combining an alkylene group having 1 to 5 carbon atoms and an arylene group having 6 to 12 carbon atoms, and is a divalent group represented by the following general formula (B1-2-1). The group is more preferable.
- each X B2 is independently an alkylene group having 1 to 5 carbon atoms
- Ar B1 is an arylene group having 6 to 12 carbon atoms. * represents a bonding site.
- the alkylene group having 1 to 5 carbon atoms represented by X B2 is preferably a methylene group among those listed above.
- the arylene group having 6 to 12 carbon atoms represented by Ar B1 is preferably a phenylene group or a biphenylene group among those listed above. Further, the phenylene group is preferably a 1,4-phenylene group, and the biphenylene group is preferably a 4,4'-biphenylene group.
- n B1 in the above general formula (B1-2) is an integer of 1 to 50, preferably an integer of 1 to 30, more preferably an integer of 1 to 20.
- Component (B2) is not particularly limited as long as it is a compound having one or more vinylbenzyl groups directly bonded to a carbon atom.
- the resin composition of this embodiment can obtain particularly excellent dielectric properties by containing the component (B2) as the component (B).
- the number of vinylbenzyl groups bonded to carbon atoms in one molecule of component (B2) may be one or more, but is preferably 2 to 4, more preferably 2 or 3.
- the weight average molecular weight (Mw) of component (B2) is not particularly limited, but from the viewpoint of moldability and handleability, it is preferably 200 to 800, more preferably 250 to 750, and even more preferably 300 to 700.
- Component (B) contains component (B2), and component (B2) is preferably a compound containing a fused polycyclic structure containing an aromatic ring and a non-aromatic ring.
- component (B2) examples include a fluorene ring, an indene ring, an indane ring, a phenanthrene ring, and an acenaphthylene ring.
- fluorene rings and indene rings are preferred from the viewpoint of dielectric properties.
- component (B2) containing a fluorene ring from the viewpoint of dielectric properties, a compound represented by the following general formula (B2-1) is preferable.
- X B3 is an alkylene group having 1 to 10 carbon atoms
- R B1 is a hydrogen atom or a vinylbenzyl group.
- alkylene group having 1 to 10 carbon atoms represented by group, 1,5-pentamethylene group, 1,6-hexamethylene group, etc.
- component (B2) containing an indene ring from the viewpoint of dielectric properties, a compound represented by the following general formula (B2-2) is preferable.
- each R B2 is independently a vinylbenzyl group, and n b2 is an integer from 1 to 3.
- the compound represented by the above general formula (B2-2) may be any of a compound having one vinylbenzyl group, a compound having two vinylbenzyl groups, and a compound having three vinylbenzyl groups. It may be a mixture. In the case of a mixture, the average number of vinylbenzyl groups in one molecule of the compound represented by the above general formula (B2-2) is preferably 1.4 to 2.8, more preferably 1.6 to 2. The number is 7, more preferably 1.8 to 2.6.
- component (B) a commercially available product may be used, or one synthesized by a known method may be used. Examples of the method for synthesizing component (B) include a method in which a base compound into which a vinylbenzyl group is introduced and styrene having a halogenated methyl group are reacted in the presence of a basic compound.
- Examples of the base compound include compounds having a phenolic hydroxyl group; compounds having a condensed polycyclic structure containing an aromatic ring and a non-aromatic ring, such as fluorene, indene, indane, phenanthrene, and acenaphthylene; Examples of the styrene having a halogenated methyl group include o-chloromethylstyrene, m-chloromethylstyrene, p-chloromethylstyrene, and mixtures thereof. Examples of the basic compound include alkali metal hydroxides and alkali metal alkoxides.
- a phase transfer catalyst may be used in the above reaction. Examples of the phase transfer catalyst include tetrabutylammonium bromide. The reaction is preferably carried out under heating and stirring, and the obtained product may be purified by known methods such as concentration, reprecipitation, washing, etc., if necessary.
- the total content of one or more selected from the group consisting of components (B1) and (B2) in component (B) is not particularly limited, but from the viewpoint of dielectric properties, the total content of component (B) is based on the total amount of component (B). , preferably 80 to 100% by weight, more preferably 90 to 100% by weight, even more preferably 95 to 100% by weight.
- the content of the vinylbenzyl compound (B) in the resin composition of this embodiment is not particularly limited, but is preferably 10% with respect to the total amount (100% by mass) of the resin components in the resin composition of this embodiment. ⁇ 90% by weight, more preferably 15 ⁇ 85% by weight, even more preferably 20 ⁇ 80% by weight.
- (B) When the content of the vinylbenzyl compound is at least the above lower limit, the dielectric properties tend to be better. Moreover, when the content of the vinylbenzyl compound (B) is below the above upper limit, the conductor adhesion tends to be better.
- the content ratio [N-substituted maleimide group/vinyl group] of the N-substituted maleimide group derived from the component (A) and the vinyl group derived from the component (B) in the resin composition of the present embodiment is as follows: Although not particularly limited, from the viewpoint of dielectric properties, curability, moldability, and conductor adhesion, it is preferably 0.05 to 5, more preferably 0.10 to 3, and even more preferably 0.15 to 1 on a molar basis. .2. Further, from the viewpoint of dielectric properties, the content ratio [N-substituted maleimide group/vinyl group] may be 1.0 or less, 0.6 or less, 0.4 or less on a molar basis. It may be less than or equal to 0.3.
- the resin composition of the present embodiment may or may not contain components other than the above-mentioned components, as necessary.
- examples of other components include elastomers, inorganic fillers, curing accelerators, organic solvents, and other additives.
- one kind may be used alone, or two or more kinds may be used in combination.
- elastomer examples include styrene elastomer, olefin elastomer, urethane elastomer, polyester elastomer, polyamide elastomer, acrylic elastomer, silicone elastomer, and derivatives thereof.
- inorganic fillers examples include silica, alumina, titanium oxide, mica, beryllia, barium titanate, potassium titanate, strontium titanate, calcium titanate, aluminum carbonate, magnesium hydroxide, aluminum hydroxide, aluminum silicate, Examples include calcium carbonate, calcium silicate, magnesium silicate, silicon nitride, boron nitride, clay, talc, aluminum borate, and silicon carbide.
- curing accelerators include acidic catalysts such as p-toluenesulfonic acid; amine compounds such as triethylamine, pyridine, and tributylamine; imidazole compounds such as methylimidazole and phenylimidazole; hexamethylene diisocyanate resin and 2-ethyl-4- Isocyanate mask imidazole compounds such as addition reaction products of methylimidazole; Tertiary amine compounds; Quaternary ammonium compounds; Phosphorous compounds such as triphenylphosphine; Dicumyl peroxide, 2,5-dimethyl-2,5-bis (t-butylperoxy)hexane-3,2,5-dimethyl-2,5-bis(t-butylperoxy)hexane, t-butylperoxyisopropyl monocarbonate, ⁇ , ⁇ '-bis(t-butyl Organic peroxides such as (peroxy), amine compounds such as tri
- organic solvents examples include alcohol solvents such as ethanol, propanol, butanol, methyl cellosolve, butyl cellosolve, and propylene glycol monomethyl ether; ketone solvents such as acetone, methyl ethyl ketone, methyl isobutyl ketone, and cyclohexanone; ether solvents such as tetrahydrofuran; Aromatic hydrocarbon solvents such as toluene, xylene, and mesitylene; nitrogen atom-containing solvents such as dimethylformamide, dimethylacetamide, and N-methylpyrrolidone; sulfur atom-containing solvents such as dimethyl sulfoxide; and ester solvents such as ⁇ -butyrolactone. Can be mentioned.
- alcohol solvents such as ethanol, propanol, butanol, methyl cellosolve, butyl cellosolve, and propylene glycol monomethyl ether
- ketone solvents such as ace
- additives examples include flame retardants, antioxidants, heat stabilizers, antistatic agents, ultraviolet absorbers, pigments, colorants, and lubricants.
- the resin composition of this embodiment can be manufactured by mixing component (A), component (B), other components used in combination as necessary, etc. by a known method. At this time, each component may be dissolved or dispersed while stirring. Conditions such as mixing order, temperature, time, etc. are not particularly limited and may be arbitrarily set depending on the type of raw materials, etc.
- the dielectric constant (Dk) at 10 GHz of the cured product of the resin composition of the present embodiment is not particularly limited, but is preferably 3.0 or less, more preferably 2.8 or less, and even more preferably 2.7 or less. .
- the above dielectric constant (Dk) is a value based on the cavity resonator perturbation method, and more specifically, a value measured by the method described in Examples.
- the dielectric loss tangent (Df) of the cured product of the resin composition of this embodiment at 10 GHz is not particularly limited, but is preferably 0.0080 or less, more preferably 0.0070 or less, and still more preferably 0.0060 or less.
- the above dielectric loss tangent (Df) is a value based on the cavity resonator perturbation method, and more specifically, a value measured by the method described in Examples.
- the prepreg of this embodiment is a prepreg containing the resin composition of this embodiment or a semi-cured product of the resin composition.
- the prepreg of this embodiment contains, for example, the resin composition of this embodiment or a semi-cured product of the resin composition, and a sheet-like fiber base material.
- sheet-like fiber base material contained in the prepreg of the present embodiment for example, known sheet-like fiber base materials used in various laminates for electrically insulating materials can be used.
- the material of the sheet-like fiber base material include inorganic fibers such as E glass, D glass, S glass, and Q glass; organic fibers such as polyimide, polyester, and tetrafluoroethylene; and mixtures thereof.
- These sheet-like fiber base materials have shapes such as woven fabrics, nonwoven fabrics, raw binders, chopped strand mats, and surfacing mats.
- the prepreg of this embodiment can be produced, for example, by impregnating or applying the resin composition of this embodiment onto a sheet-like fiber base material, and then heating and drying it to B-stage it.
- the heating drying temperature and time are not particularly limited, but from the viewpoint of productivity and appropriately B-staging the resin composition of this embodiment, it may be, for example, 50 to 200 ° C. for 1 to 30 minutes. can.
- the solid content concentration derived from the resin composition in the prepreg of this embodiment is not particularly limited, but from the viewpoint of easily obtaining better moldability when formed into a laminate, it is preferably 20 to 90% by mass, More preferably 25 to 80% by weight, still more preferably 30 to 75% by weight.
- the resin film of this embodiment is a resin film containing the resin composition of this embodiment or a semi-cured product of the resin composition.
- the resin film of this embodiment can be produced, for example, by applying the resin composition of this embodiment containing an organic solvent, that is, a resin varnish, to a support and then drying it by heating.
- the support include a plastic film, metal foil, and release paper.
- the temperature and time of heat drying are not particularly limited, but from the viewpoint of productivity and appropriately B-staging the resin composition of the present embodiment, it can be set to 50 to 200° C. for 1 to 30 minutes.
- the resin film of this embodiment is preferably used to form an insulating layer when manufacturing a printed wiring board.
- the laminate of this embodiment is a laminate that includes a cured product of the resin composition of this embodiment and metal foil. Note that a laminate having metal foil is sometimes referred to as a metal-clad laminate.
- the metal of the metal foil is not particularly limited, and examples include copper, gold, silver, nickel, platinum, molybdenum, ruthenium, aluminum, tungsten, iron, titanium, chromium, alloys containing one or more of these metal elements, etc. can be mentioned.
- the laminate of this embodiment can be manufactured, for example, by arranging metal foil on one or both sides of the prepreg of this embodiment and then heat-pressing the prepreg.
- the B-staged prepreg is cured by this heating and pressure molding to obtain the laminate of this embodiment.
- hot-pressing molding only one sheet of prepreg may be used, or two or more sheets of prepreg may be laminated.
- heating and pressure molding for example, a multistage press, a multistage vacuum press, a continuous molding machine, an autoclave molding machine, etc. can be used.
- the conditions for heating and pressure molding are not particularly limited, but may be, for example, a temperature of 100 to 300°C, a time of 10 to 300 minutes, and a pressure of 1.5 to 5 MPa.
- the printed wiring board of this embodiment is a printed wiring board having a cured product of the resin composition of this embodiment.
- the printed wiring board of this embodiment can be produced by, for example, using a known method for one or more selected from the group consisting of the cured prepreg of this embodiment, the cured resin film of this embodiment, and a laminate. , it can be manufactured by forming a conductor circuit. Furthermore, a multilayer printed wiring board can be manufactured by further performing a multilayer adhesive process as necessary.
- the conductor circuit can be formed by, for example, appropriately performing drilling, metal plating, etching of metal foil, or the like.
- the semiconductor package of the first aspect of this embodiment is a semiconductor package that includes the printed wiring board of this embodiment and a semiconductor element.
- the semiconductor package of the first aspect of this embodiment can be manufactured by, for example, mounting a semiconductor element, a memory, etc. on the printed wiring board of this embodiment by a known method.
- the semiconductor package of the second aspect of this embodiment is a semiconductor package that includes a semiconductor element and a cured product of the resin composition of this embodiment that seals the semiconductor element.
- the semiconductor package of the second aspect of the present embodiment is manufactured by, for example, a method of covering at least a portion of a semiconductor element mounted on a printed wiring board with the resin composition of the present embodiment and curing the resin composition. be able to.
- the weight average molecular weight (Mw) and number average molecular weight (Mn) were measured by the following procedure. (Method for measuring weight average molecular weight (Mw) and number average molecular weight (Mn))
- the weight average molecular weight (Mw) and number average molecular weight (Mn) were calculated by gel permeation chromatography (GPC) from a calibration curve using standard polystyrene.
- the calibration curve was approximated by a cubic equation using standard polystyrene: TSK standard POLYSTYRENE (Type: A-2500, A-5000, F-20, F-80) [manufactured by Tosoh Corporation, trade name].
- GPC measurement conditions are shown below.
- HLC-8320GPC Detector Ultraviolet absorption detector UV-8320 [manufactured by Tosoh Corporation]
- Eluent Tetrahydrofuran Sample concentration: 10mg/1mL Injection volume: 20 ⁇ L or 2 ⁇ L Flow rate: 0.35mL/min Measurement temperature: 40°C
- vinylbenzyl compounds 1 to 3 have a structure in which substantially all of the phenolic hydroxyl groups of the base compound are substituted with vinylbenzyl ether groups, and correspond to component (B1). It was confirmed that
- Production examples 4-5 (Production of vinylbenzyl compounds 4 and 5)
- a 500 mL reaction vessel equipped with a stirrer, a thermometer, a reflux tube, and a nitrogen inlet was charged with the base compound, chloromethylstyrene, phase transfer catalyst, polymerization inhibitor, and solvent in the amounts listed in Table 1, and the flow rate
- the mixture was heated and stirred at 40° C. while blowing nitrogen at a rate of 50 ml/min.
- the basic compound in the amount shown in Table 1 was added dropwise over 20 minutes, and the mixture was further stirred at 60°C for 9 hours. Note that nitrogen was continued to be blown into the reactor during the reaction.
- Vinylbenzyl compounds 4 and 5 were obtained.
- vinylbenzyl compounds 4 and 5 it was determined by 1 H-NMR analysis that substantially all of the two hydrogen atoms directly bonded to the 1-position carbon atom of indene represented by the following formula (B2-3) are vinylbenzyl groups. It was confirmed that it has a structure substituted with and corresponds to component (B2). Furthermore, GPC analysis revealed that vinylbenzyl compounds 4 and 5 were mixtures of two vinylbenzyl groups and three vinylbenzyl groups.
- Table 1 shows the weight average molecular weights (Mw) of vinylbenzyl compounds 1 to 5.
- CMS Chloromethylstyrene
- ⁇ CMS Manufactured by Linchuan Chemical, mixture of o-form and p-form, o-form content is 17% by mass, p-form content is 83% by mass
- ⁇ CMS-P Manufactured by AGC Seimi Chemical Co., Ltd., mixture of m-form and p-form, m-form content is 50% by mass, p-form content is 50% by mass
- phase transfer catalyst ⁇ Tetrabutylphosphonium bromide: Manufactured by Kanto Kagaku Co., Ltd.
- Tetra-n-butylammonium bromide Manufactured by Kanto Kagaku Co., Ltd.
- the resin composition obtained in each example was coated on a 38 ⁇ m thick PET film (manufactured by Teijin Ltd., product name: G2000), and then heated and dried at 140°C for 5 minutes to form a B-stage resin. A film was produced. After this resin film was peeled from the PET film, it was crushed to obtain a resin powder. Next, the above resin powder was poured into a Teflon (registered trademark) sheet cut into a size of 1 mm thick x 50 mm long x 30 mm wide, and 18 ⁇ m thick low profile copper foil (Mitsui Mining Co., Ltd.) was placed on top and bottom of the Teflon sheet.
- Teflon registered trademark
- test piece of 1 mm x 50 mm was prepared by cutting the resin plate obtained in each example. Next, the dielectric constant (Dk) and dielectric loss tangent (Df) of the test piece were measured at an ambient temperature of 25° C. and a 10 GHz band according to the cavity resonator perturbation method. However, the resin composition of Comparative Example 1 was classified as "unmeasurable” because its moldability was poor and test pieces for measuring the dielectric constant (Dk) and dielectric loss tangent (Df) could not be prepared.
- each material in Table 2 is as follows.
- the resin compositions of Examples 1 to 6 of this embodiment all have good moldability, but have low dielectric constants (Dk) and dielectric loss tangents (Df). , it can be seen that it has excellent dielectric properties.
- the resin composition of Comparative Example 1 which did not contain component (B) had poor moldability.
- the resin composition of Comparative Example 2, which did not contain component (B) had poor dielectric properties.
- the resin compositions of Examples 2 to 6 have a higher dielectric loss tangent (Df) than the resin composition of Comparative Example 2. ) has been significantly reduced, and it can be seen that the amount of reduction is significant and exceeds the range expected from the amount of component (B) blended.
- the resin composition of this embodiment has excellent dielectric properties, prepregs, laminates, printed wiring boards, semiconductor packages, etc. obtained using the resin composition are particularly suitable for electronic components that handle high frequency signals. suitable.
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Abstract
Description
[1](A)N-置換マレイミド基を1個以上有するマレイミド樹脂及びその誘導体からなる群から選択される1種以上と、
(B)ビニルベンジル基を有する化合物と、を含有し、
前記(B)成分が、(B1)酸素原子に結合するビニルベンジル基を3個以上有する化合物、及び(B2)炭素原子に結合するビニルベンジル基を1個以上有する化合物からなる群から選択される1種以上を含有する、樹脂組成物。
[2]前記(B)成分が、前記(B1)成分を含有し、
前記(B1)成分が、下記一般式(B-1)で表される構造単位を含む化合物である、上記[1]に記載の樹脂組成物。
[3]前記(B)成分が、前記(B2)成分を含有し、
前記(B2)成分が、芳香族環と非芳香族環とを含む縮合多環構造を含む化合物である、上記[1]に記載の樹脂組成物。
[4]前記芳香族環と非芳香族環とを含む縮合多環構造が、インデン環である、上記[3]に記載の樹脂組成物。
[5]前記(A)成分が、N-置換マレイミド基を2個有する芳香族ビスマレイミド樹脂である、上記[1]~[4]のいずれかに記載の樹脂組成物。
[6]前記(A)成分に由来するN-置換マレイミド基と、前記(B)成分に由来するビニル基と、の含有量比〔N-置換マレイミド基/ビニル基〕が、モル基準で、0.05~5である、上記[1]~[5]のいずれかに記載の樹脂組成物。
[7]上記[1]~[6]のいずれかに記載の樹脂組成物又は前記樹脂組成物の半硬化物を含有するプリプレグ。
[8]上記[1]~[6]のいずれかに記載の樹脂組成物の硬化物と、金属箔と、を有する積層板。
[9]上記[1]~[6]のいずれかに記載の樹脂組成物又は前記樹脂組成物の半硬化物を含有する樹脂フィルム。
[10]上記[1]~[6]のいずれかに記載の樹脂組成物の硬化物を有するプリント配線板。
[11]上記[10]に記載のプリント配線板と、半導体素子と、を有する半導体パッケージ。
[12]半導体素子と、該半導体素子を封止する上記[1]~[6]のいずれかに記載の樹脂組成物の硬化物と、を有する半導体パッケージ。
例えば、数値範囲「X~Y」(X、Yは実数)という表記は、X以上、Y以下である数値範囲を意味する。そして、本明細書における「X以上」という記載は、X及びXを超える数値を意味する。また、本明細書における「Y以下」という記載は、Y及びY未満の数値を意味する。
本明細書中に記載されている数値範囲の下限値及び上限値は、それぞれ他の数値範囲の下限値又は上限値と任意に組み合わせられる。
本明細書中に記載されている数値範囲において、その数値範囲の下限値又は上限値は、実施例に示されている値に置き換えてもよい。
本明細書において、樹脂組成物中の各成分の含有量は、樹脂組成物中に各成分に該当する物質が複数存在する場合、特に断らない限り、樹脂組成物中に存在する当該複数の物質の合計量を意味する。
本実施形態の樹脂組成物は、
(A)N-置換マレイミド基を1個以上有するマレイミド樹脂及びその誘導体からなる群から選択される1種以上と、
(B)ビニルベンジル基を有する化合物と、を含有し、
前記(B)成分が、(B1)酸素原子に結合するビニルベンジル基を3個以上有する化合物、及び(B2)炭素原子に結合するビニルベンジル基を1個以上有する化合物からなる群から選択される1種以上を含有する、樹脂組成物である。
(A)マレイミド系樹脂は、N-置換マレイミド基を1個以上有するマレイミド樹脂及び該マレイミド樹脂の誘導体からなる群から選択される1種以上である。
(A)マレイミド系樹脂は、1種を単独で用いても、2種以上を組み合わせて用いてもよい。
また、N-置換マレイミド基を1個以上有するマレイミド樹脂の誘導体を「マレイミド樹脂誘導体(AY)」又は「(AY)成分」と称する場合がある。
マレイミド樹脂(AX)は、N-置換マレイミド基を1個以上有するマレイミド樹脂であれば特に限定されない。
マレイミド樹脂(AX)は、導体接着性及び耐熱性の観点から、N-置換マレイミド基を2個以上有する芳香族マレイミド樹脂であることが好ましく、N-置換マレイミド基を2個有する芳香族ビスマレイミド樹脂であることがより好ましい。
上記一般式(A-1)中のXA1が表す2価の有機基としては、例えば、下記一般式(A-2)で表される2価の有機基、下記一般式(A-3)で表される2価の有機基、下記一般式(A-4)で表される2価の有機基、下記一般式(A-5)で表される2価の有機基、下記一般式(A-6)で表される2価の有機基、下記一般式(A-7)で表される2価の有機基等が挙げられる。
ハロゲン原子としては、例えば、フッ素原子、塩素原子、臭素原子、ヨウ素原子等が挙げられる。
上記一般式(A-2)中のnA1は0~4の整数であり、入手容易性の観点から、好ましくは0~2の整数、より好ましくは0又は1、さらに好ましくは0である。
nA1が2以上の整数である場合、複数のRA1同士は、同一であってもよいし、異なっていてもよい。
(式中、RA2及びRA3は、各々独立に、炭素数1~5の脂肪族炭化水素基又はハロゲン原子である。XA2は炭素数1~5のアルキレン基、炭素数2~5のアルキリデン基、エーテル基、スルフィド基、スルホニル基、カルボニルオキシ基、ケト基、単結合、又は下記一般式(A-3-1)で表される2価の有機基である。nA2及びnA3は、各々独立に、0~4の整数である。*は結合部位を表す。)
ハロゲン原子としては、例えば、フッ素原子、塩素原子、臭素原子、ヨウ素原子等が挙げられる。
nA2又はnA3が2以上の整数である場合、複数のRA2同士又は複数のRA3同士は、それぞれ同一であってもよいし、異なっていてもよい。
(式中、RA4及びRA5は、各々独立に、炭素数1~5の脂肪族炭化水素基又はハロゲン原子である。XA3は炭素数1~5のアルキレン基、炭素数2~5のアルキリデン基、エーテル基、スルフィド基、スルホニル基、カルボニルオキシ基、ケト基又は単結合である。nA4及びnA5は、各々独立に、0~4の整数である。*は結合部位を表す。)
ハロゲン原子としては、例えば、フッ素原子、塩素原子、臭素原子、ヨウ素原子等が挙げられる。
nA4又はnA5が2以上の整数である場合、複数のRA4同士又は複数のRA5同士は、それぞれ同一であってもよいし、異なっていてもよい。
上記一般式(A-6)中のnA8は、1~8の整数であり、好ましくは1~5の整数、より好ましくは1~3の整数、さらに好ましくは1である。nA8が2以上の整数である場合、複数のRA6同士又は複数のRA7同士は、それぞれ同一であってもよいし、異なっていてもよい。
(式中、RA8は、炭素数1~10のアルキル基、炭素数1~10のアルキルオキシ基、炭素数1~10のアルキルチオ基、炭素数6~10のアリール基、炭素数6~10のアリールオキシ基、炭素数6~10のアリールチオ基、炭素数3~10のシクロアルキル基、ハロゲン原子、水酸基又はメルカプト基であり、nA9は0~3の整数である。RA9~RA11は、各々独立に、炭素数1~10のアルキル基である。RA12は、各々独立に、炭素数1~10のアルキル基、炭素数1~10のアルキルオキシ基、炭素数1~10のアルキルチオ基、炭素数6~10のアリール基、炭素数6~10のアリールオキシ基、炭素数6~10のアリールチオ基、炭素数3~10のシクロアルキル基、ハロゲン原子、ニトロ基、水酸基又はメルカプト基である。nA10は、各々独立に、0~4の整数であり、nA11は、0.95~10.0の数値である。*は結合部位を表す。)
RA8で表される炭素数1~10のアルキルオキシ基及び炭素数1~10のアルキルチオ基に含まれるアルキル基としては、上記炭素数1~10のアルキル基と同じものが挙げられる。
RA8で表される炭素数6~10のアリール基としては、例えば、フェニル基、ナフチル基等が挙げられる。
RA8で表される炭素数6~10のアリールオキシ基及び炭素数6~10のアリールチオ基に含まれるアリール基としては、上記炭素数6~10のアリール基と同じものが挙げられる。
RA8で表される炭素数3~10のシクロアルキル基としては、例えば、シクロプロピル基、シクロブチル基、シクロペンチル基、シクロヘキシル基、シクロヘプチル基、シクロオクチル基、シクロデシル基等が挙げられる。
上記一般式(A-7)中のnA9が1~3の整数である場合、RA8は、溶剤溶解性及び反応性の観点から、炭素数1~4のアルキル基、炭素数3~6のシクロアルキル基、炭素数6~10のアリール基が好ましく、炭素数1~4のアルキル基がより好ましい。
上記一般式(A-7)中のnA9は、0~3の整数であり、nA9が2又は3である場合、複数のRA8同士は、同一であってもよいし、異なっていてもよい。
これらの中でも、RA12は、他の樹脂との相容性、溶剤溶解性、誘電特性、導体との接着性及び製造容易性の観点から、炭素数1~4のアルキル基、炭素数3~6のシクロアルキル基、炭素数6~10のアリール基が好ましく、炭素数1~3のアルキル基がより好ましい。
上記一般式(A-7)中のnA10は、0~4の整数であり、他の樹脂との相容性、溶剤溶解性、誘電特性、導体との接着性及び製造容易性の観点から、好ましくは0~3の整数、より好ましくは0又は2である。
なお、nA10が1以上であることによって、ベンゼン環とN-置換マレイミド基とがねじれた配座を有するものになり、分子間のスタッキング抑制によって溶剤溶解性がより向上する傾向にある。同様の観点から、nA10が1以上である場合、RA12の置換位置は、N-置換マレイミド基に対してオルト位であることが好ましい。
上記一般式(A-7)中のnA11は、他の樹脂との相容性、溶剤溶解性、溶融粘度、ハンドリング性及び耐熱性の観点から、好ましくは0.98~8.0、より好ましくは1.0~7.0、さらに好ましくは1.1~6.0である。
マレイミド樹脂(AX)の具体例としては、N,N’-エチレンビスマレイミド、N,N’-ヘキサメチレンビスマレイミド、N,N’-(1,3-フェニレン)ビスマレイミド、N,N’-[1,3-(2-メチルフェニレン)]ビスマレイミド、N,N’-[1,3-(4-メチルフェニレン)]ビスマレイミド、N,N’-(1,4-フェニレン)ビスマレイミド、ビス(4-マレイミドフェニル)メタン、ビス(3-メチル-4-マレイミドフェニル)メタン、3,3’-ジメチル-5,5’-ジエチル-4,4’-ジフェニルメタンビスマレイミド、ビス(4-マレイミドフェニル)エーテル、ビス(4-マレイミドフェニル)スルホン、ビス(4-マレイミドフェニル)スルフィド、ビス(4-マレイミドフェニル)ケトン、ビス(4-マレイミドシクロヘキシル)メタン、1,4-ビス(4-マレイミドフェニル)シクロヘキサン、1,4-ビス(マレイミドメチル)シクロヘキサン、1,4-ビス(マレイミドメチル)ベンゼン、1,3-ビス(4-マレイミドフェノキシ)ベンゼン、1,3-ビス(3-マレイミドフェノキシ)ベンゼン、ビス[4-(3-マレイミドフェノキシ)フェニル]メタン、ビス[4-(4-マレイミドフェノキシ)フェニル]メタン、1,1-ビス[4-(3-マレイミドフェノキシ)フェニル]エタン、1,1-ビス[4-(4-マレイミドフェノキシ)フェニル]エタン、1,2-ビス[4-(3-マレイミドフェノキシ)フェニル]エタン、1,2-ビス[4-(4-マレイミドフェノキシ)フェニル]エタン、2,2-ビス[4-(3-マレイミドフェノキシ)フェニル]プロパン、2,2-ビス[4-(4-マレイミドフェノキシ)フェニル]プロパン、2,2-ビス[4-(3-マレイミドフェノキシ)フェニル]ブタン、2,2-ビス[4-(4-マレイミドフェノキシ)フェニル]ブタン、2,2-ビス[4-(3-マレイミドフェノキシ)フェニル]-1,1,1,3,3,3-ヘキサフルオロプロパン、2,2-ビス[4-(4-マレイミドフェノキシ)フェニル]-1,1,1,3,3,3-ヘキサフルオロプロパン、4,4-ビス(3-マレイミドフェノキシ)ビフェニル、4,4-ビス(4-マレイミドフェノキシ)ビフェニル、ビス[4-(3-マレイミドフェノキシ)フェニル]ケトン、ビス[4-(4-マレイミドフェノキシ)フェニル]ケトン、ビス(4-マレイミドフェニル)ジスルフィド、ビス[4-(3-マレイミドフェノキシ)フェニル]スルフィド、ビス[4-(4-マレイミドフェノキシ)フェニル]スルフィド、ビス[4-(3-マレイミドフェノキシ)フェニル]スルホキシド、ビス[4-(4-マレイミドフェノキシ)フェニル]スルホキシド、ビス[4-(3-マレイミドフェノキシ)フェニル]スルホン、ビス[4-(4-マレイミドフェノキシ)フェニル]スルホン、ビス[4-(3-マレイミドフェノキシ)フェニル]エーテル、ビス[4-(4-マレイミドフェノキシ)フェニル]エーテル、1,4-ビス[4-(4-マレイミドフェノキシ)-α,α-ジメチルベンジル]ベンゼン、1,3-ビス[4-(4-マレイミドフェノキシ)-α,α-ジメチルベンジル]ベンゼン、1,4-ビス[4-(3-マレイミドフェノキシ)-α,α-ジメチルベンジル]ベンゼン、1,3-ビス[4-(3-マレイミドフェノキシ)-α,α-ジメチルベンジル]ベンゼン、1,4-ビス[4-(4-マレイミドフェノキシ)-3,5-ジメチル-α,α-ジメチルベンジル]ベンゼン、1,3-ビス[4-(4-マレイミドフェノキシ)-3,5-ジメチル-α,α-ジメチルベンジル]ベンゼン、1,4-ビス[4-(3-マレイミドフェノキシ)-3,5-ジメチル-α,α-ジメチルベンジル]ベンゼン、1,3-ビス[4-(3-マレイミドフェノキシ)-3,5-ジメチル-α,α-ジメチルベンジル]ベンゼン、ポリフェニルメタンマレイミド、インダン骨格を有する芳香族ビスマレイミド樹脂、ビフェニルアラルキル型マレイミド樹脂等が挙げられる。これらの中でも、ビス(4-マレイミドフェニル)メタン、インダン骨格を有する芳香族ビスマレイミド樹脂が好ましい。
マレイミド樹脂誘導体(AY)としては、上記したマレイミド樹脂(AX)由来の構造単位とジアミン化合物由来の構造単位とを含有するアミノマレイミド樹脂が好ましい。
アミノマレイミド樹脂中に含まれるマレイミド樹脂(AX)由来の構造単位は、1種単独であってもよく、2種以上であってもよい。
アミノマレイミド樹脂中に含まれるジアミン化合物由来の構造単位は、1種単独であってもよく、2種以上であってもよい。
なお、本明細書中、「芳香族ジアミン化合物」とは、芳香環に直接結合するアミノ基を2個有する化合物を意味する。
本実施形態の樹脂組成物中における(A)マレイミド系樹脂の含有量は、特に限定されないが、本実施形態の樹脂組成物中の樹脂成分の総量(100質量%)に対して、好ましくは10~90質量%、より好ましくは15~85質量%、さらに好ましくは20~80質量%である。
(A)マレイミド系樹脂の含有量が上記下限値以上であると、耐熱性、成形性、加工性及び導体接着性がより良好になり易い傾向にある。また、(A)マレイミド系樹脂の含有量が上記上限値以下であると、誘電特性がより良好になり易い傾向にある。
例えば、本実施形態の樹脂組成物においては、(A)成分及び(B)成分は樹脂成分に相当する。
本実施形態の樹脂組成物が、任意成分として、上記成分以外に樹脂又は硬化反応によって樹脂を形成する化合物を含有する場合、これらの任意成分も樹脂成分に含まれる。
(B)ビニルベンジル基を有する化合物(以下、「(B)ビニルベンジル化合物」ともいう)は、(B1)酸素原子に結合するビニルベンジル基を3個以上有する化合物、及び(B2)炭素原子に結合するビニルベンジル基を1個以上有する化合物からなる群から選択される1種以上を含有する。
(B)ビニルベンジル化合物が有する反応性基であるビニル基は、(A)成分が有するN-置換マレイミド基よりも極性が低い。そのため、(B)ビニルベンジル化合物を含有する本実施形態の樹脂組成物は、優れた誘電特性を発現することができる。
(B)成分は、1種を単独で用いてもよく、2種以上を組み合わせて用いてもよい。
(B)成分が有する全ビニルベンジル基中、p-ビニルベンジル基の含有量は、特に限定されないが、低誘電正接性の観点から、好ましくは10~100質量%、より好ましくは15~95質量%、さらに好ましくは20~90質量%、特に好ましくは25~85質量%である。
(B1)成分は、酸素原子に直接結合するビニルベンジル基を3個以上有する化合物であれば特に限定されない。
本実施形態の樹脂組成物は、(B)成分として、(B1)成分を含有することによって、優れた誘電特性が得られると共に、硬化性を向上させることができる。
炭素数1~5のアルキレン基としては、例えば、メチレン基、1,2-ジメチレン基、1,3-トリメチレン基、1,4-テトラメチレン基、1,5-ペンタメチレン基等が挙げられる。
炭素数2~5のアルキリデン基としては、例えば、エチリデン基、プロピリデン基、イソプロピリデン基、ブチリデン基、イソブチリデン基、ペンチリデン基、イソペンチリデン基等が挙げられる。
炭素数5~12の2価の脂環式炭化水素基としては、ノルボルナン、デカリン、ビシクロウンデカン、飽和ジシクロペンタジエン等の脂環式炭化水素化合物から、異なる2個の炭素原子に結合する2個の水素原子が失われて生ずる2価の基が挙げられる。
炭素数6~12のアリ-レン基としては、例えば、フェニレン基、ナフチレン基、ビフェニレン基等が挙げられる。
ArB1が表す炭素数6~12のアリ-レン基は、上記で挙げたものの中でも、フェニレン基、ビフェニレン基が好ましい。また、フェニレン基は1,4-フェニレン基が好ましく、ビフェニレン基は4,4’-ビフェニレン基が好ましい。
(B2)成分は、炭素原子に直接結合するビニルベンジル基を1個以上有する化合物であれば特に限定されない。
本実施形態の樹脂組成物は、(B)成分として、(B2)成分を含有することによって、特に優れた誘電特性が得られる。
(B2)成分が有する芳香族環と非芳香族環とを含む縮合多環構造としては、例えば、フルオレン環、インデン環、インダン環、フェナントレン環、アセナフチレン環等が挙げられる。これらの中でも、誘電特性の観点から、フルオレン環、インデン環が好ましい。
(B)成分を合成する方法としては、例えば、ビニルベンジル基を導入するベース化合物と、ハロゲン化メチル基を有するスチレンとを、塩基性化合物の存在下で反応させる方法が挙げられる。上記ベース化合物としては、例えば、フェノール性水酸基を有する化合物;フルオレン、インデン、インダン、フェナントレン、アセナフチレン等の芳香族環と非芳香族環とを含む縮合多環構造を有する化合物などが挙げられる。
ハロゲン化メチル基を有するスチレンとしては、例えば、o-クロロメチルスチレン、m-クロロメチルスチレン、p-クロロメチルスチレン、これらの混合物等が挙げられる。
塩基性化合物としては、アルカリ金属水酸化物、アルカリ金属アルコキシド等が挙げられる。
上記反応の際には、相間移動触媒を用いてもよい。相間移動触媒としては、例えば、テトラブチルアンモニウムブロマイド等が挙げられる。
反応は、加熱及び撹拌下で行うことが好ましく、得られた生成物は、必要に応じて、濃縮、再沈殿、洗浄等の公知の方法によって精製してもよい。
本実施形態の樹脂組成物中における(B)ビニルベンジル化合物の含有量は、特に限定されないが、本実施形態の樹脂組成物中の樹脂成分の総量(100質量%)に対して、好ましくは10~90質量%、より好ましくは15~85質量%、さらに好ましくは20~80質量%である。
(B)ビニルベンジル化合物の含有量が上記下限値以上であると、誘電特性がより良好になり易い傾向にある。また、(B)ビニルベンジル化合物の含有量が上記上限値以下であると、導体密着性がより良好になり易い傾向にある。
また、含有量比〔N-置換マレイミド基/ビニル基〕は、誘電特性の観点から、モル基準で、1.0以下であってもよく、0.6以下であってもよく、0.4以下であってもよく、0.3以下であってもよい。
本実施形態の樹脂組成物は、必要に応じて、上記各成分以外のその他の成分を含有していてもよく、含有していなくてもよい。
その他の成分としては、例えば、エラストマー、無機充填材、硬化促進剤、有機溶媒、その他の添加剤等が挙げられる。
その他の成分は、各々について、1種を単独で用いてもよく、2種以上を併用してもよい。
エラストマーとしては、例えば、スチレン系エラストマー、オレフィン系エラストマー、ウレタン系エラストマー、ポリエステル系エラストマー、ポリアミド系エラストマー、アクリル系エラストマー、シリコーン系エラストマー、これらの誘導体等が挙げられる。
無機充填材としては、例えば、シリカ、アルミナ、酸化チタン、マイカ、ベリリア、チタン酸バリウム、チタン酸カリウム、チタン酸ストロンチウム、チタン酸カルシウム、炭酸アルミニウム、水酸化マグネシウム、水酸化アルミニウム、ケイ酸アルミニウム、炭酸カルシウム、ケイ酸カルシウム、ケイ酸マグネシウム、窒化ケイ素、窒化ホウ素、クレー、タルク、ホウ酸アルミニウム、炭化ケイ素等が挙げられる。
硬化促進剤としては、例えば、p-トルエンスルホン酸等の酸性触媒;トリエチルアミン、ピリジン、トリブチルアミン等のアミン化合物;メチルイミダゾール、フェニルイミダゾール等のイミダゾール化合物;ヘキサメチレンジイソシアネート樹脂と2-エチル-4-メチルイミダゾールの付加反応物等のイソシアネートマスクイミダゾール化合物;第3級アミン化合物;第4級アンモニウム化合物;トリフェニルホスフィン等のリン系化合物;ジクミルパーオキサイド、2,5-ジメチル-2,5-ビス(t-ブチルパーオキシ)ヘキシン-3、2,5-ジメチル-2,5-ビス(t-ブチルパーオキシ)ヘキサン、t-ブチルパーオキシイソプロピルモノカーボネート、α,α’-ビス(t-ブチルパーオキシ)ジイソプロピルベンゼン等の有機過酸化物;マンガン、コバルト、亜鉛等のカルボン酸塩などが挙げられる。
有機溶剤としては、例えば、エタノール、プロパノール、ブタノール、メチルセロソルブ、ブチルセロソルブ、プロピレングリコールモノメチルエーテル等のアルコール系溶剤;アセトン、メチルエチルケトン、メチルイソブチルケトン、シクロヘキサノン等のケトン系溶剤;テトラヒドロフラン等のエーテル系溶剤;トルエン、キシレン、メシチレン等の芳香族炭化水素系溶剤;ジメチルホルムアミド、ジメチルアセトアミド、N-メチルピロリドン等の窒素原子含有溶剤;ジメチルスルホキシド等の硫黄原子含有溶剤;γ-ブチロラクトン等のエステル系溶剤などが挙げられる。
その他の添加剤としては、例えば、難燃剤、酸化防止剤、熱安定剤、帯電防止剤、紫外線吸収剤、顔料、着色剤、滑剤等が挙げられる。
本実施形態の樹脂組成物は、(A)成分、(B)成分、必要に応じて併用されるその他の成分等を公知の方法で混合することで製造することができる。この際、各成分は撹拌しながら溶解又は分散させてもよい。混合順序、温度、時間等の条件は、特に限定されず、原料の種類等に応じて任意に設定すればよい。
本実施形態の樹脂組成物の硬化物の10GHzにおける比誘電率(Dk)は、特に限定されないが、好ましくは3.0以下、より好ましくは2.8以下、さらに好ましくは2.7以下である。上記比誘電率(Dk)は小さい程好ましく、その下限値に特に制限はないが、他の物性とのバランスを考慮して、例えば、2.3以上であってもよく、2.4以上であってもよい。
上記の比誘電率(Dk)は、空洞共振器摂動法に準拠した値であり、より詳細には、実施例に記載する方法によって測定された値である。
本実施形態の樹脂組成物の硬化物の10GHzにおける誘電正接(Df)は、特に限定されないが、好ましくは0.0080以下、より好ましくは0.0070以下、さらに好ましくは0.0060以下である。上記誘電正接(Df)は小さい程好ましく、その下限値に特に制限はないが、他の物性とのバランスを考慮して、例えば、0.0010以上であってもよく、0.0015以上であってもよい。
上記の誘電正接(Df)は、空洞共振器摂動法に準拠した値であり、より詳細には、実施例に記載する方法によって測定された値である。
本実施形態のプリプレグは、本実施形態の樹脂組成物又は前記樹脂組成物の半硬化物を含有するプリプレグである。
本実施形態のプリプレグは、例えば、本実施形態の樹脂組成物又は前記樹脂組成物の半硬化物と、シート状繊維基材と、を含有するものである。
シート状繊維基材の材質としては、例えば、Eガラス、Dガラス、Sガラス、Qガラス等の無機物繊維;ポリイミド、ポリエステル、テトラフルオロエチレン等の有機繊維;これらの混合物などが挙げられる。これらのシート状繊維基材は、例えば、織布、不織布、ロービンク、チョップドストランドマット、サーフェシングマット等の形状を有する。
加熱乾燥の温度及び時間は、特に限定されないが、生産性及び本実施形態の樹脂組成物を適度にB-ステージ化させるという観点から、例えば、50~200℃、1~30分間とすることができる。
本実施形態の樹脂フィルムは、本実施形態の樹脂組成物又は前記樹脂組成物の半硬化物を含有する樹脂フィルムである。
本実施形態の樹脂フィルムは、例えば、有機溶媒を含有する本実施形態の樹脂組成物、つまり樹脂ワニスを支持体に塗布してから、加熱乾燥させることによって製造することができる。
支持体としては、例えば、プラスチックフィルム、金属箔、離型紙等が挙げられる。
加熱乾燥の温度及び時間は、特に限定されないが、生産性及び本実施形態の樹脂組成物を適度にB-ステージ化させるという観点から、50~200℃、1~30分間とすることができる。
本実施形態の積層板は、本実施形態の樹脂組成物の硬化物と、金属箔と、を有する積層板である。
なお、金属箔を有する積層板は、金属張積層板と称されることもある。
通常、この加熱加圧成形によって、B-ステージ化されたプリプレグを硬化させて本実施形態の積層板が得られる。
加熱加圧成形する際、プリプレグは1枚のみを用いてもよいし、2枚以上のプリプレグを積層させてもよい。
加熱加圧成形は、例えば、多段プレス、多段真空プレス、連続成形、オートクレーブ成形機等を使用することができる。
加熱加圧成形の条件は、特に限定されないが、例えば、温度100~300℃、時間10~300分間、圧力1.5~5MPaとすることができる。
本実施形態のプリント配線板は、本実施形態の樹脂組成物の硬化物を有するプリント配線板である。
本実施形態のプリント配線板は、例えば、本実施形態のプリプレグの硬化物、本実施形態の樹脂フィルムの硬化物及び積層板からなる群から選択される1種以上に対して、公知の方法によって、導体回路形成を行うことによって製造することができる。また、さらに必要に応じて多層化接着加工を施すことによって多層プリント配線板を製造することもできる。導体回路は、例えば、穴開け加工、金属めっき加工、金属箔のエッチング等を適宜施すことで形成することができる。
本実施形態の第一態様の半導体パッケージは、本実施形態のプリント配線板と、半導体素子と、を有する半導体パッケージである。
本実施形態の第一態様の半導体パッケージは、例えば、本実施形態のプリント配線板に、公知の方法によって、半導体素子、メモリ等を搭載することによって製造することができる。
本実施形態の第二態様の半導体パッケージは、例えば、本実施形態の樹脂組成物によって、プリント配線板に搭載された半導体素子の少なくとも一部を覆い、該樹脂組成物を硬化させる方法によって製造することができる。
(重量平均分子量(Mw)及び数平均分子量(Mn)の測定方法)
重量平均分子量(Mw)及び数平均分子量(Mn)はゲル浸透クロマトグラフィー(GPC)によって、標準ポリスチレンを用いた検量線から換算した。検量線は、標準ポリスチレン:TSKstandard POLYSTYRENE(Type;A-2500、A-5000、F-20、F-80)[東ソー株式会社製、商品名]を用いて3次式で近似した。GPCの測定条件を、以下に示す。
装置:高速GPC装置 HLC-8320GPC
検出器:紫外吸光検出器 UV-8320[東ソー株式会社製]
カラム:ガードカラム;TSKgel guardcolumn Super(HZ)-M+カラム;TSKgel SuperMultipore HZ-M(2本)、リファレンスカラム;TSKgel SuperH-RC(2本)(すべて東ソー株式会社製、商品名)
カラムサイズ:4.6×20mm(ガードカラム)、4.6×150mm(カラム)、6.0×150mm(リファレンスカラム)
溶離液:テトラヒドロフラン
試料濃度:10mg/1mL
注入量:20μL又は2μL
流量:0.35mL/分
測定温度:40℃
製造例1~3
(ビニルベンジル化合物1~3の製造)
撹拌装置、温度計、還流管及びエアポンプを備えた500mLの容積の反応容器に、表1に記載の量のベース化合物、クロロメチルスチレン、相間移動触媒、純水、重合禁止剤、溶媒を仕込み、流量50ml/分で空気を吹き込みながら、40℃で加熱撹拌した。
次いで、温度を70℃に保ちながら、表1に示す量の塩基性化合物を20分間で滴下し、更に70℃で4時間撹拌した。なお反応中は空気の吹込みを継続させた。室温(25℃)に冷却し10%塩酸水溶液で中和した後、有機層を純水で3回洗浄した。その後、有機層をメタノールに沈殿させ目的のビニルベンジル化合物1~3を得た。ビニルベンジル化合物1~3は、赤外吸収(IR)スペクトル分析によって、ベース化合物が有するフェノール性水酸基が、実質的に全てビニルベンジルエーテル基に置換された構造を有し、(B1)成分に相当することが確認された。
(ビニルベンジル化合物4及び5の製造)
撹拌装置、温度計、還流管及び窒素吹き込み口を備えた500mLの容積の反応容器に、表1に記載の量のベース化合物、クロロメチルスチレン、相間移動触媒、重合禁止剤、溶媒を仕込み、流量50ml/分で窒素を吹き込みながら、40℃で加熱撹拌した。
次いで、表1に示す量の塩基性化合物を20分間で滴下し、更に60℃で9時間撹拌した。なお反応中は窒素の吹込みを継続させた。室温(25℃)に冷却し10%塩酸水溶液で中和した後、純水で2回洗浄し、トルエンを減圧留去後、得られた粘稠液体をメタノールで洗浄した後に真空乾燥することでビニルベンジル化合物4及び5を得た。ビニルベンジル化合物4及び5は、1H-NMR分析によって、下記式(B2-3)で表されるインデンの1位の炭素原子に直接結合する2個の水素原子が実質的に全てビニルベンジル基に置換された構造を有し、(B2)成分に相当することが確認された。また、GPC分析によって、ビニルベンジル化合物4及び5は、ビニルベンジル基が2個導入されたものと、3個導入されたものとの混合物であった。
(ベース化合物)
・J-DPP-115:ジシクロペンタジエン骨格を有するフェノール樹脂、JFEケミカル株式会社製、水酸基当量177~182g/eq
・MEHC-7851SS:ビフェニルアラルキル型フェノール樹脂、明和化成株式会社製、重量平均分子量(Mw)1,000、数平均分子量(Mn)700、水酸基当量201~220g/eq
・MEHC-7851M:ビフェニルアラルキル型フェノール樹脂、明和化成株式会社製、重量平均分子量(Mw)1,500、数平均分子量(Mn)900、水酸基当量201~220g/eq
・CMS:Linchuan Chemical社製、o体とp体の混合物、o体含有量が17質量%、p体含有量が83質量%
・CMS-P:AGCセイミケミカル株式会社製、m体とp体の混合物、m体含有量が50質量%、p体含有量が50質量%
・臭化テトラブチルホスホニウム:関東化学株式会社製
・臭化テトラ-n-ブチルアンモニウム:関東化学株式会社製
・水酸化ナトリウム:関東化学株式会社製、濃度48質量%の水溶液
実施例1~6、比較例1~2
表2に記載の各成分を、粉末の状態で混合又はトルエン及びメチルエチルケトンと共に表2に記載の配合量に従って配合し、25℃で撹拌及び混合して、固形分濃度が約60質量%の樹脂組成物を調製した。なお、表2中、各成分の配合量の単位は質量部であり、溶液の場合は、固形分換算の質量部を意味する。
上記実施例及び比較例で得られた樹脂板を用いて、下記方法に従って各測定及び評価を行った。結果を表2に示す。
各例で得た樹脂板の外観を目視にて確認し、下記基準で評価した。
A:樹脂板の表面にボイドが無く、切断加工が可能である。
C:樹脂板の表面にボイドが有り、切断加工が不可である。
各例で得た樹脂板を切断することによって1mm×50mmの試験片を作製した。次いで、空洞共振器摂動法に準拠して、雰囲気温度25℃にて10GHz帯で、上記試験片の比誘電率(Dk)及び誘電正接(Df)を測定した。但し、比較例1の樹脂組成物は、成形性に劣り、比誘電率(Dk)及び誘電正接(Df)を測定するための試験片を作製できなかったため「測定不可」とした。
[(A)成分]
・マレイミド樹脂1:ビス(4-マレイミドフェニル)メタン
・マレイミド樹脂2:インダン環を含む芳香族ビスマレイミド樹脂
[(B)成分]
・ビニルベンジル化合物1~5:製造例1~5で得られたビニルベンジル化合物1~5
一方、(B)成分を含有しない比較例1の樹脂組成物は成形性に劣っていた。また、(B)成分を含有しない比較例2の樹脂組成物は、誘電特性に劣っていた。
特に、同一の(A)成分を用いた実施例2~6と比較例2とを対比すると、実施例2~6の樹脂組成物は、比較例2の樹脂組成物よりも、誘電正接(Df)が大幅に低減しており、その低減量は、(B)成分の配合量から予測される範囲を超える顕著なものであることが分かる。
Claims (12)
- (A)N-置換マレイミド基を1個以上有するマレイミド樹脂及びその誘導体からなる群から選択される1種以上と、
(B)ビニルベンジル基を有する化合物と、を含有し、
前記(B)成分が、(B1)酸素原子に結合するビニルベンジル基を3個以上有する化合物、及び(B2)炭素原子に結合するビニルベンジル基を1個以上有する化合物からなる群から選択される1種以上を含有する、樹脂組成物。 - 前記(B)成分が、前記(B2)成分を含有し、
前記(B2)成分が、芳香族環と非芳香族環とを含む縮合多環構造を含む化合物である、請求項1に記載の樹脂組成物。 - 前記芳香族環と非芳香族環とを含む縮合多環構造が、インデン環である、請求項3に記載の樹脂組成物。
- 前記(A)成分が、N-置換マレイミド基を2個有する芳香族ビスマレイミド樹脂である、請求項1~4のいずれか1項に記載の樹脂組成物。
- 前記(A)成分に由来するN-置換マレイミド基と、前記(B)成分に由来するビニル基と、の含有量比〔N-置換マレイミド基/ビニル基〕が、モル基準で、0.05~5である、請求項1~4のいずれか1項に記載の樹脂組成物。
- 請求項1~4のいずれか1項に記載の樹脂組成物又は前記樹脂組成物の半硬化物を含有するプリプレグ。
- 請求項1~4のいずれか1項に記載の樹脂組成物の硬化物と、金属箔と、を有する積層板。
- 請求項1~4のいずれか1項に記載の樹脂組成物又は前記樹脂組成物の半硬化物を含有する樹脂フィルム。
- 請求項1~4のいずれか1項に記載の樹脂組成物の硬化物を有するプリント配線板。
- 請求項10に記載のプリント配線板と、半導体素子と、を有する半導体パッケージ。
- 半導体素子と、該半導体素子を封止する請求項1~4のいずれか1項に記載の樹脂組成物の硬化物と、を有する半導体パッケージ。
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| CN202380037500.XA CN119137167A (zh) | 2022-05-19 | 2023-05-16 | 树脂组合物、预浸料、层叠板、树脂膜、印刷线路板以及半导体封装体 |
| KR1020247035294A KR20250009960A (ko) | 2022-05-19 | 2023-05-16 | 수지 조성물, 프리프레그, 적층판, 수지 필름, 프린트 배선판 및 반도체 패키지 |
| US18/859,264 US20250326929A1 (en) | 2022-05-19 | 2023-05-16 | Resin composition, prepreg, laminate, resin film, printed wiring board and semiconductor package |
| JP2024521933A JPWO2023224021A1 (ja) | 2022-05-19 | 2023-05-16 | |
| EP23807623.6A EP4527860A4 (en) | 2022-05-19 | 2023-05-16 | RESIN COMPOSITION, PREPREG, LAMINATE, RESIN FILM, PRINTED CIRCUIT BOARD AND SEMICONDUCTOR PACKAGE |
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| JP (1) | JPWO2023224021A1 (ja) |
| KR (1) | KR20250009960A (ja) |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2025197853A1 (ja) * | 2024-03-22 | 2025-09-25 | 日本化薬株式会社 | 硬化性樹脂、硬化性樹脂組成物、ワニスおよびその硬化物 |
| WO2025262918A1 (ja) * | 2024-06-21 | 2025-12-26 | 株式会社レゾナック | アリールアルキル変性インデン組成物、硬化性樹脂材料、プリプレグ、樹脂フィルム、金属張積層板、プリント配線板、及び半導体パッケージ |
| WO2026028262A1 (ja) * | 2024-07-29 | 2026-02-05 | 株式会社レゾナック | 封止材用硬化性組成物及び封止材 |
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| WO2025197853A1 (ja) * | 2024-03-22 | 2025-09-25 | 日本化薬株式会社 | 硬化性樹脂、硬化性樹脂組成物、ワニスおよびその硬化物 |
| WO2025262918A1 (ja) * | 2024-06-21 | 2025-12-26 | 株式会社レゾナック | アリールアルキル変性インデン組成物、硬化性樹脂材料、プリプレグ、樹脂フィルム、金属張積層板、プリント配線板、及び半導体パッケージ |
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| Publication number | Publication date |
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| EP4527860A1 (en) | 2025-03-26 |
| EP4527860A4 (en) | 2025-08-20 |
| KR20250009960A (ko) | 2025-01-20 |
| CN119137167A (zh) | 2024-12-13 |
| US20250326929A1 (en) | 2025-10-23 |
| JPWO2023224021A1 (ja) | 2023-11-23 |
| TW202407038A (zh) | 2024-02-16 |
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