WO2019103086A1 - 熱硬化性樹脂組成物、絶縁性フィルム、層間絶縁性フィルム、多層配線板、および半導体装置 - Google Patents
熱硬化性樹脂組成物、絶縁性フィルム、層間絶縁性フィルム、多層配線板、および半導体装置 Download PDFInfo
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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
- C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
- C08L71/08—Polyethers derived from hydroxy compounds or from their metallic derivatives
- C08L71/10—Polyethers derived from hydroxy compounds or from their metallic derivatives from phenols
- C08L71/12—Polyphenylene oxides
-
- 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
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/02—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
- C08F290/06—Polymers provided for in subclass C08G
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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
- C08F299/00—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers
- C08F299/02—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers from unsaturated polycondensates
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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
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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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
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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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
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
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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
- C08K5/54—Silicon-containing compounds
- C08K5/541—Silicon-containing compounds containing oxygen
- C08K5/5425—Silicon-containing compounds containing oxygen containing at least one C=C bond
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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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
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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
- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
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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
Definitions
- the present invention relates to a thermosetting resin composition, an insulating film, an interlayer insulating film, a multilayer wiring board, and a semiconductor device.
- the present invention relates to a thermosetting resin composition that can cope with high frequency, an insulating film, an interlayer insulating film, a multilayer wiring board, and a semiconductor device.
- PPE polyphenylene ether
- the resin composition has high frequency characteristics comparable to PPE using a curing component such as epoxy and an elastomer (Patent Document 1), and the phenolic antioxidant contained in the epoxy resin It is stated that the agent can be used without deteriorating the high frequency properties of the resin composition.
- thermosetting PPE it is preferable to lower the molecular weight of the thermosetting PPE from the viewpoint of reactivity and solubility in a solvent.
- the PPE polymer obtained by polymerizing a low molecular weight thermosetting PPE has a very high rate of oxidative degradation at high temperatures, and when used in a multilayer wiring board, the dielectric loss tangent (tan ⁇ ) after the heat resistance reliability test
- the present inventors have found that there is a problem that the value fluctuates.
- the multilayer wiring plate is also required to have solder heat resistance, which needs to be satisfied.
- the object of the present invention is to provide a PPE-based thermosetting resin composition which is excellent in high frequency characteristics and heat resistance reliability (small variation of dielectric loss tangent (tan ⁇ ) is small) and solder heat resistance from the above-mentioned viewpoint.
- the purpose is to provide a PPE-based thermosetting resin composition which is excellent in high frequency characteristics and heat resistance reliability (small variation of dielectric loss tangent (tan ⁇ ) is small) and solder heat resistance from the above-mentioned viewpoint.
- the purpose is to
- the present invention relates to a thermosetting resin composition, an insulating film, an interlayer insulating film, a multilayer wiring board, and a semiconductor device, which solve the above problems by having the following configuration.
- A a polyphenylene ether having an unsaturated double bond at the end and a number average molecular weight of 800 to 4,500, A thermosetting resin composition comprising (B) a phenolic antioxidant having a melting point of 200 ° C. or higher, and (C) a thermoplastic elastomer.
- thermosetting resin composition according to the above [1] or [2], which comprises 3 to 9 is The thermosetting resin composition according to the above [1] or [2], which comprises 3 to 9).
- An interlayer insulating film comprising the thermosetting resin composition according to any one of the above [1] to [4].
- thermosetting resin composition which is excellent in high frequency characteristics and heat resistance reliability (small amount of change in dielectric loss tangent (tan ⁇ )) and excellent in solder heat resistance. it can.
- a multilayer wiring board excellent in high frequency characteristics and heat resistance reliability is provided by the cured product of the thermosetting resin composition, the insulating film, or the cured product of the interlayer insulating film. can do.
- a multilayer wiring board excellent in high frequency characteristics and heat resistance reliability is provided by the cured product of the thermosetting resin composition, the insulating film, or the cured product of the interlayer insulating film. can do.
- a semiconductor device excellent in high frequency characteristics and heat resistance reliability is provided by the cured product of the thermosetting resin composition, the insulating film, or the cured product of the interlayer insulating film. be able to.
- thermosetting resin composition is (A) polyphenylene ether having an unsaturated double bond at the end and a number average molecular weight of 800 to 4,500, (B) A phenolic antioxidant having a melting point of 200 ° C. or higher, and (C) a thermoplastic elastomer.
- the component (A) is a polyphenylene ether having an unsaturated double bond at the end and a number average molecular weight of 800 to 4,500, and the thermosetting resin composition of the present invention (hereinafter referred to as a thermosetting resin composition) Provides adhesion, high frequency characteristics, heat resistance.
- the high frequency characteristics refer to the property of reducing the transmission loss in the high frequency region.
- the component (A) has a relative dielectric constant ( ⁇ ) at 10 GHz of 3.5 or less and a dielectric loss tangent (tan ⁇ ) of 0.003 or less.
- polyphenylene ether having a styrene group at the end is preferable.
- polyphenylene ether (PPE) having a styrene group at the end it is excellent in high frequency characteristics, and the measured value at high temperature (120 ° C) against the temperature dependency (especially at normal temperature (25 ° C)) of dielectric characteristics (especially tan ⁇ )
- PPE polyphenylene ether
- the compound represented by the general formula (1) is preferred because the change in
- R 1 , R 2 , R 3 , R 7 and R 8 may be the same or different and are an alkyl group having 6 or less carbon atoms or a phenyl group.
- R 4 , R 5 , R) 6 may be the same or different and are a hydrogen atom, an alkyl group having 6 or less carbon atoms, or a phenyl group.
- R 9 , R 10 , R 11 , R 12 , R 13 , R 14 , R 15 , and R 16 may be the same or different and each represents a hydrogen atom, an alkyl group having 6 or less carbon atoms, or A phenyl group -A- is a linear, branched or cyclic divalent hydrocarbon group having a carbon number of 20 or less.
- R 17 and R 18 may be the same or different, and are an alkyl group having a carbon number of 6 or less or a phenyl group.
- R 19 and R 20 may be the same or different, and a hydrogen atom , Alkyl group having 6 or less carbon atoms or phenyl group)
- a and b represent integers of 0 to 100, at least one of which is not 0.
- examples of -A- include methylene, ethylidene, 1-methylethylidene, 1,1-propylidene, 1,4-phenylenebis (1-methylethylidene), and 1,3-phenylenebis (1 -Methylethylidene), cyclohexylidene, phenylmethylene, naphthylmethylene, 1-phenylethylidene, and the like, and examples thereof include, but are not limited to, divalent organic groups.
- R 1 , R 2 , R 3 , R 7 , R 8 , R 17 and R 18 each represent an alkyl group having 3 or less carbon atoms, R 4 , R 5 , R It is preferable that 6 , R 9 , R 10 , R 11 , R 12 , R 13 , R 14 , R 15 , R 16 , R 19 and R 20 each be a hydrogen atom or an alkyl group having 3 or less carbon atoms, particularly
- the — (OXO) — represented by the formula (2) or the general formula (3) is a general formula (5), a general formula (6) or a general formula (7), and the general formula (4) It is more preferable that — (Y—O) — represented by) is the formula (8) or the formula (9) or a structure in which the formula (8) and the formula (9) are randomly arranged. )
- the method for producing the compound represented by the formula (1) is not particularly limited.
- the terminal phenolic hydroxyl group of the bifunctional phenylene ether oligomer obtained by oxidatively coupling a bifunctional phenolic compound and a monofunctional phenolic compound Can be produced by vinylbenzyl etherification.
- the number average molecular weight of the thermosetting resin of the component (A) is in the range of 800 to 4,500 in terms of polystyrene by GPC method, preferably in the range of 1000 to 3,500, and the viscosity is low while reducing the origin of oxidative degradation due to polymerization.
- the range of 1500 to 2500 is more preferable from the viewpoint of When the number average molecular weight is 800 or more, when the thermosetting resin composition of the present invention is formed into a coating film, it is difficult to stick, and when it is 4500 or less, the decrease in solubility in the solvent can be prevented.
- the component (A) may be used alone or in combination of two or more.
- the component (B) is a phenolic antioxidant having a melting point of 200 ° C. or higher, and imparts solder heat resistance to the thermosetting resin.
- the melting point of the component (B) is less than 200 ° C., the solder heat resistance of the thermosetting resin becomes insufficient.
- component (B) Commercially available products of component (B) include 1,3,5-tris (3,5-di-tert-butyl-4-hydroxybenzyl) -1,3,5-triazine-2,4,6 (1H, 3H, 5H) -trione (manufactured by Adeka, product name: AO-20, melting point: 220-222 ° C, molecular weight: 784);
- the component (B) may be used alone or in combination of two or more.
- the component (C) functions as a flexibility imparting resin which imparts flexibility to the thermosetting resin composition.
- thermoplastic elastomer of the component (C) from the viewpoint of dielectric properties, styrenic thermoplastic elastomers are preferable, and the temperature dependence of the dielectric properties (especially tan ⁇ ) (relative to the measured value at normal temperature (25 ° C.) From the viewpoint of the smallness of the change in the measured value at 120 ° C., the hydrogenated styrene-based thermoplastic elastomer is more preferable.
- temperature dependence may increase.
- the hydrogenated styrenic thermoplastic elastomer preferred as the component (C) is a styrenic block copolymer in which the unsaturated double bond in the main chain in the molecule is hydrogenated, and as this hydrogenated styrenic block copolymer, styrene- Ethylene / butylene-styrene block copolymer (SEBS), styrene- (ethylene-ethylene / propylene) -styrene block copolymer (SEEPS), styrene-ethylene / propylene-styrene block copolymer (SEPS), etc. And SEBS and SEEPS are preferred.
- SEBS and SEEPS are excellent in dielectric properties, compatible with polyphenylene ether (PPE) which is an option of the component (A), modified PPE and the like, and can form a thermosetting resin composition having heat resistance. Furthermore, since the styrenic block copolymer contributes to the reduction of the elasticity of the thermosetting resin composition, it imparts flexibility to the insulating film, and a low elasticity of 3 GPa or less to the cured product of the thermosetting resin composition. Are suitable for applications where
- the weight average molecular weight of the component (C) is preferably 30,000 to 200,000, and more preferably 80,000 to 120,000.
- the weight average molecular weight is determined by gel permeation chromatography (GPC) using a standard polystyrene calibration curve.
- the component (C) may be used alone or in combination of two or more.
- Component (A) and component (C) are resins, and component (A) is preferably 10 to 70 parts by mass with respect to 100 parts by mass in total of component (A) and component (C), It is more preferable that it is 60 mass parts.
- the amount of the component (A) When the amount of the component (A) is small, the cured product of the thermosetting resin composition is not sufficiently cured, and defects such as a decrease in peel strength, an increase in thermal expansion coefficient (CTE), and a decrease in heat resistance tend to occur.
- the amount of the component (A) When the amount of the component (A) is large, the film produced from the thermosetting resin composition is hard, brittle and easily cracked, the film property is impaired, and the cured product of the thermosetting resin composition is also hard and brittle, Problems such as reduction in peel strength and cracks due to heat shock are likely to occur, and heat resistance reliability is reduced due to oxidation at high temperatures.
- resins other than the component (A) and the component (C) for example, an epoxy resin, a maleimide resin, a cyanate resin, a polyimide resin or the like may be used in combination.
- the component (B) is preferably 0.1 to 10 parts by mass, preferably 0.3 to 5 parts by mass, with respect to 100 parts by mass of the resin component in the thermosetting resin composition. And more preferably 0.5 to 2 parts by mass.
- the thermosetting resin is further preferably (D) containing an inorganic filler from the viewpoint of lowering the CTE of the cured product of the thermosetting resin.
- the component (D) is preferably a silica filler.
- the inorganic filler as the component (D) is more preferably surface-treated from the viewpoint of moisture resistance and reliability.
- this surface treatment agent general formula (10):
- R 21 to R 23 are each independently an alkyl group having 1 to 3 carbon atoms
- R 24 is a functional group having an unsaturated double bond at least at the end
- n is The silane coupling agent represented by 3) to 9
- n is more preferably 5 to 9.
- R 24 in the general formula (10) is preferably a vinyl group or a (meth) acrylic group from the viewpoint of adhesiveness with (A) due to reactivity, and a vinyl group from the viewpoint of peel strength , More preferred.
- silane coupling agents that can be used for the component (D) include octenyltrialkoxysilane, (meth) acryloxyalkyltrialkoxysilane, and 3-methacryloxypropyltrimethoxysilane.
- octenyltrialkoxysilane octenyltrimethoxysilane, octenyltriethoxysilane and the like can be mentioned.
- examples of the (meth) acryloxyalkyltrialkoxysilane include (meth) acryloxyoctyltrimethoxysilane and (meth) acryloxyoctyltriethoxysilane.
- silane coupling agents which can be used for the component (D) include octenyltrimethoxysilane (product name: KBM-1083) manufactured by Shin-Etsu Chemical Co., Ltd., methacryloxyoctyl trimethoxy manufactured by Shin-Etsu Chemical Co., Ltd. Silane (product name: KBM-5803) and 3-methacryloxypropyltrimethoxysilane (product name: KBM-503) manufactured by Shin-Etsu Chemical Co., Ltd. can be mentioned.
- the silane coupling agent which can be used for (D) component may be individual or may be 2 or more types.
- silica filler used for the component (D) examples include fused silica, ordinary silica, spherical silica, crushed silica, crystalline silica, amorphous silica and the like without particular limitation.
- Spherical fused silica is desirable from the viewpoints of the dispersibility of the silica filler, the fluidity of the thermosetting resin composition, the surface smoothness of the cured product, the dielectric properties, the low coefficient of thermal expansion, the adhesion, and the like.
- the average particle diameter (if not spherical, the average maximum diameter) of the silica filler is not particularly limited, but it is 0.05 to 20 ⁇ m from the viewpoint of improving the moisture resistance after curing due to the small specific surface area.
- the thickness is preferably 0.1 to 10 ⁇ m, more preferably 1 to 10 ⁇ m.
- the average particle diameter of the silica filler refers to a volume-based median diameter measured by a laser scattering diffraction type particle size distribution measuring device.
- the method of surface-treating a silica filler using the above-mentioned coupling agent is not specifically limited, For example, a dry method, a wet method, etc. are mentioned.
- the silica filler and the silane coupling agent in an amount appropriate to the surface area of the silica filler are put in a stirrer and stirred under appropriate conditions, or the silica filler is put in advance in a stirrer and under appropriate conditions.
- an appropriate amount of silane coupling agent is added to the surface area of the silica filler as a stock solution or solution by dropping or spraying, and the silane coupling agent is uniformly deposited on the silica filler surface by stirring, It is a method of surface treatment (by hydrolysis).
- a stirring apparatus although the mixer which can be stirred and mixed by high-speed rotation, such as a Henschel mixer etc., is mentioned, for example, it is not limited in particular.
- the silica filler is added to a surface treatment solution in which a sufficient amount of silane coupling agent is dissolved in water or an organic solvent with respect to the surface area of the silica filler to be surface-treated, and the slurry is stirred.
- This is a method in which the silane coupling agent and the silica filler are reacted sufficiently, and then the silica filler is separated from the surface treatment solution using filtration, centrifugation or the like, and dried by heating to perform surface treatment.
- the component (D) may be used alone or in combination of two or more.
- Component (D) is 45 to 75% by volume (64 to 88% by mass in the case of a solid silica filler) in the thermosetting resin composition (excluding the solvent) from the viewpoint of lowering CTE. Is preferable, and 50 to 70% by volume (69 to 85% by mass in the case of a solid silica filler) is more preferable. If the amount of the component (D) is small, the desired CTE of the thermosetting resin composition can not be achieved, and if the amount of the component (D) is large, the peel strength of the thermosetting resin composition tends to decrease.
- thermosetting resin composition is an organic peroxide as a hardening accelerator of (A) component, and coupling agents, such as a silane coupling agent, (Integral blend) in the range which does not impair the effect of this invention.
- coupling agents such as a silane coupling agent, (Integral blend) in the range which does not impair the effect of this invention.
- Additives such as flame retardants, tackifiers, antifoaming agents, flow control agents, thixotropic agents, dispersants, antioxidants, flame retardants and the like can be included.
- P-styryltrimethoxysilane (Shin-Etsu Chemical Co., Ltd., KBM-1403), bis (triethoxysilylpropyl) tetrasulfide (Shin-Etsu Chemical Co., Ltd., KBE-846), Polysulfide-based silane coupling agent (Osaka soda Co., Ltd., Cabras 4), octenyltrimethoxysilane (Shin-Etsu Chemical Co., Ltd., KBM-1083), methacryloxyoctyltrimethoxysilane (Shin-Etsu Chemical Co., Ltd.) KBM-5803), 3-methacryloxypropyltrimethoxysilane (Shin-Etsu Chemical Co., Ltd., KBM-503), 3-methacryloxypropyl triethoxysilane (Shin-Etsu Chemical Co., Ltd., KBE-503), 3-glycid
- the thermosetting resin composition can be produced by dissolving or dispersing the raw materials such as the components (A), (B) and (C) constituting the resin composition in an organic solvent.
- the apparatus for dissolving or dispersing these raw materials is not particularly limited, but it is preferable to use a stirrer equipped with a heating apparatus, a dissolver, a liquier, a 3-roll mill, a ball mill, a planetary mixer, a beads mill, etc. Can. Moreover, you may use combining these apparatuses suitably.
- thermosetting resin composition preferably has a viscosity of 200 to 3000 mPa ⁇ s.
- the viscosity is a value measured at a rotational speed of 50 rpm and 25 ° C. using an E-type viscometer.
- thermosetting resin composition obtained is excellent in high frequency characteristics and heat resistance reliability (small amount of change in dielectric loss tangent (tan ⁇ )) and excellent in solder heat resistance.
- the insulating film of the present invention contains the above-mentioned thermosetting resin composition.
- the insulating film is formed into a desired shape from the thermosetting resin composition.
- the insulating film can be obtained by applying the above-mentioned thermosetting resin composition on a support and drying it.
- the support is not particularly limited, and examples thereof include metal foils such as copper and aluminum, and organic films such as polyester resin, polyethylene resin, and polyethylene terephthalate resin (PET).
- PET polyethylene terephthalate resin
- the support may be release-treated with a silicone compound or the like.
- the thermosetting resin composition can be used in various shapes, and the shape is not particularly limited.
- thermosetting resin composition coated to a support body
- the gravure method, the slot die method, and the doctor blade method are preferable.
- the slot die method an uncured film of a thermosetting resin composition having a thickness of 5 to 300 ⁇ m, that is, an insulating film can be obtained.
- the drying conditions can be appropriately set according to the type and amount of the organic solvent used for the thermosetting resin composition, the thickness of the coating, etc. For example, at 50 to 120 ° C. for about 1 to 60 minutes. It can be done.
- the insulating film obtained in this way has good storage stability. Note that the insulating film can be peeled off from the support at a desired timing.
- Curing of the insulating film can be performed, for example, at 150 to 230 ° C. for 30 to 180 minutes.
- the interlayer insulating film of the present invention can be produced and cured in the same manner as described above.
- curing of the interlayer insulating film may be performed after sandwiching the interlayer insulating film between substrates on which wiring such as copper foil is formed, wiring by copper foil or the like It may be performed after laminating the interlayer insulation film which formed the above suitably.
- the insulating film can also be used as a coverlay film for protecting the wiring on the substrate, and the curing conditions at that time are also the same.
- a thermosetting resin composition can be similarly cured.
- press curing may be performed, for example, at a pressure of 1 to 5 MPa.
- the multilayer wiring board of the present invention comprises the cured product of the above-mentioned thermosetting resin composition, the above-mentioned insulating film, or the cured product of an interlayer insulating film.
- the printed wiring board of the present invention is produced by curing the above-mentioned thermosetting resin composition, the above-mentioned insulating film, or the interlayer insulating film.
- This printed wiring board is excellent in high frequency characteristics and heat resistance reliability by the cured product of the thermosetting resin composition, the insulating film, or the cured product of the interlayer insulating film (amount of change in dielectric loss tangent (tan ⁇ ) Small) and excellent in solder heat resistance.
- multilayer wiring boards substrates for microwave or millimeter wave communication, particularly printed wiring boards for high frequency applications such as millimeter wave radar boards for vehicles, etc. may be mentioned.
- the method for producing the multilayer wiring board is not particularly limited, and the same method as in the case of producing a printed wiring board using a general prepreg can be used.
- the semiconductor device of the present invention is produced by curing the above-mentioned thermosetting resin composition, the above-mentioned insulating film, or the interlayer insulating film.
- This semiconductor device is excellent in high frequency characteristics and heat resistance reliability (the amount of change in dielectric loss tangent (tan ⁇ ) is high due to the cured product of the thermosetting resin composition, the insulating film, or the cured product of the interlayer insulating film). small).
- a semiconductor device refers to any device that can function by utilizing semiconductor characteristics, and includes electronic components, semiconductor circuits, modules incorporating these, electronic devices, and the like.
- thermosetting resin composition [Examples 1 to 11, Comparative Examples 1 to 3] ⁇ Preparation of a thermosetting resin composition>
- a rotation / revolution type stirrer product name: Mazellstar (registered trademark), made by Kurabo)
- the viscosity was adjusted with toluene to prepare a thermosetting resin composition.
- the thermosetting resin composition is applied to a thickness of 50 to 100 ⁇ m on a polyethylene terephthalate (PET) substrate by a coating machine, and dried at 100 to 120 ° C. for 10 to 20 minutes, It became a film.
- PET polyethylene terephthalate
- OPE-2St 2200 described in Tables 1 to 2 is a styrene end-modified PPE (molecular weight (Mn): 2200) manufactured by Mitsubishi Gas Chemical Co., Ltd.
- OPE-2St 1200 is a styrene end-modified PPE (molecular weight (Mn): 1200) manufactured by Mitsubishi Gas Chemical Co., Ltd.
- AO-20 is a hindered phenolic antioxidant (melting point: 220-222 ° C) manufactured by ADEKA AO-330 is a hindered phenolic antioxidant (melting point: 243-245 ° C) manufactured by ADEKA AO-80 is a hindered phenolic antioxidant (melting point: 110-120 ° C., 3,9-bis ⁇ 2- [3- (3-tert-butyl-4-hydroxy-5-methylphenyl) pro, manufactured by ADEKA Pioniroxy] -1,1-dimethylethyl ⁇ -2,4,8,10-tetrao
- G1652 is made of Kraton Polymer SEBS (30% elastomer in styrene ratio)
- G1657 is made of Kraton Polymer SEBS (styrene ratio 13% elastomer)
- KBM-1403 is a styryl coupling agent (p-styryl trimethoxysilane) manufactured by Shin-Etsu Chemical Co., Ltd.
- Kablas 4 is a Osaka Soda sulfide coupling agent
- SFP-130 MC M treatment is a methacrylic coupling agent (3-methacryloxypropyltrimethoxysilane manufactured by Shin-Etsu Chemical Co., Ltd.) to SiO 2 filler (average particle size: 0.7 ⁇ m product) manufactured by DENKA, product name: KBM -503)
- FB-3 SDX M treatment is a methacrylic coupling agent (3-methacryloxypropyltrimethoxysilane manufactured by Shin-Etsu Chemical Co., Ltd.) to SiO 2 filler (average particle size: 3.4 ⁇ m item) manufactured by DENKA, product name: KBM -503)
- the FB-3 SDX O treatment is an octenyl type coupling agent (7-octenyl trimethoxysilane manufactured by Shin-Etsu Chemical Co., Ltd.) to SiO 2 filler (average particle size: 3.4 ⁇
- ⁇ Dielectric characteristics> The film peeled from the PET substrate is press cured at 200 ° C. for 1 hour at 1 MPa, and then cut into 70 ⁇ 50 mm, and a split post dielectric resonator (SPDR) with a dielectric resonant frequency of 10 GHz and normal temperature normal conditions.
- SPDR split post dielectric resonator
- the relative dielectric constant of moisture ( ⁇ ) and the dielectric loss tangent (tan ⁇ ) were measured.
- the relative dielectric constant is preferably 3.5 or less, and the dielectric loss tangent is preferably 0.0030 or less. Tables 1 and 2 show the results.
- Humidity resistance (tan ⁇ change) Change the tan ⁇ by measuring the tan ⁇ by SPDR method (10 GHz) under normal temperature and normal humidity after leaving the cured film whose dielectric properties are measured for 200 hours at 85 ° C./85% RH. The amount and rate of change were determined. The rate of change is preferably 55% or less, more preferably 45% or less, and even more preferably 40% or less. Table 3 shows the results.
- thermosetting resin composition of the present invention can form an insulating film or an interlayer insulating film excellent in high frequency characteristics and heat resistance reliability (small variation of dielectric loss tangent (tan ⁇ )) and excellent in solder heat resistance. And is very useful.
- the multilayer wiring board of the present invention is excellent in high frequency characteristics and heat resistance reliability by the cured product of the thermosetting resin composition, the insulating film, or the cured product of the interlayer insulating film (dielectric loss tangent (tan ⁇ ) Amount of change is small).
- the semiconductor device of the present invention is excellent in high frequency characteristics and heat resistance reliability due to the cured product of the thermosetting resin composition, the insulating film, or the cured product of the interlayer insulating film (change in dielectric loss tangent (tan ⁇ ) Small amount) suitable for high frequency applications.
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Abstract
Description
〔1〕(A)末端に不飽和二重結合を有する数平均分子量が800~4500のポリフェニレンエーテル、
(B)融点が200℃以上のフェノール系酸化防止剤、および
(C)熱可塑性エラストマー
を含むことを特徴とする、熱硬化性樹脂組成物。
〔2〕さらに、(D)無機充填剤を含む、上記〔1〕記載の熱硬化性樹脂組成物。
〔3〕(D)成分が、一般式(10)で表されるシランカップリング剤で表面処理されたシリカフィラー
〔4〕一般式(10)のR24が、ビニル基、または(メタ)アクリル基である、上記〔1〕~〔3〕のいずれか記載の熱硬化性樹脂組成物。
〔5〕上記〔1〕~〔4〕のいずれか記載の熱硬化性樹脂組成物を含む、絶縁性フィルム。
〔6〕上記〔1〕~〔4〕のいずれか記載の熱硬化性樹脂組成物を含む、層間絶縁性フィルム。
〔7〕上記〔1〕~〔4〕のいずれか記載の樹脂組成物の硬化物、上記〔5〕記載の絶縁性フィルム、または上記〔6〕記載の層間絶縁性フィルムの硬化物。
〔8〕上記〔1〕~〔4〕のいずれか記載の樹脂組成物の硬化物、上記〔5〕記載の絶縁性フィルム、または上記〔6〕記載の層間絶縁性フィルムの硬化物を有する、多層配線板。
〔9〕上記〔1〕~〔4〕のいずれか記載の熱硬化性樹脂組成物の硬化物、〔5〕記載の絶縁性フィルム、または上記〔6〕記載の層間絶縁性フィルムの硬化物を有する、半導体装置。
本発明〔6〕によれば、高周波特性、および耐熱信頼性に優れ、かつはんだ耐熱性に優れる、PPE系熱硬化性樹脂組成物により形成された層間絶縁性フィルムを提供することができる。
本発明の熱硬化性樹脂組成物は、
(A)末端に不飽和二重結合を有する数平均分子量が800~4500のポリフェニレンエーテル、
(B)融点が200℃以上のフェノール系酸化防止剤、および
(C)熱可塑性エラストマー
を含む。
本発明の絶縁性フィルムは、上述の熱硬化性樹脂組成物を含む。絶縁性フィルムは、熱硬化性樹脂組成物から、所望の形状に形成される。具体的には、絶縁性フィルムは、上述の熱硬化性樹脂組成物を、支持体の上に、塗布した後、乾燥することにより、得ることができる。支持体は、特に限定されず、銅、アルミニウム等の金属箔、ポリエステル樹脂、ポリエチレン樹脂、ポリエチレンテレフタレート樹脂(PET)等の有機フィルム等が挙げられる。支持体はシリコーン系化合物等で離型処理されていてもよい。なお、熱硬化性樹脂組成物は、種々の形状で使用することができ、形状は特に限定されない。
本発明の多層配線板は、上述の熱硬化性樹脂組成物の硬化物、上述の絶縁性フィルム、または層間絶縁性フィルムの硬化物を有する。本発明のプリント配線板は、上述の熱硬化性樹脂組成物、上述の絶縁性フィルム、または層間絶縁性フィルムを用い、これを硬化して作製する。このプリント配線板は、上記熱硬化性樹脂組成物の硬化物、上記絶縁性フィルム、または層間絶縁性フィルムの硬化物により、高周波特性、および耐熱信頼性に優れ(誘電正接(tanδ)の変化量が小さく)、かつはんだ耐熱性に優れる。多層配線板の中では、マイクロ波やミリ波通信用の基板、特に車載用ミリ波レーダー基板等の高周波用途のプリント配線板等が、挙げられる。多層配線板の製造方法は、特に、限定されず、一般的なプリプレグを使用してプリント配線板を作製する場合と同様の方法を、用いることができる。
本発明の半導体装置は、上述の熱硬化性樹脂組成物、上述の絶縁性フィルム、または層間絶縁性フィルムを用い、これを硬化して作製する。この半導体装置は、上記熱硬化性樹脂組成物の硬化物、上記絶縁性フィルム、または層間絶縁性フィルムの硬化物により、高周波特性、および耐熱信頼性に優れる(誘電正接(tanδ)の変化量が小さい)。ここで、半導体装置とは、半導体特性を利用することで機能しうる装置全般を指し、電子部品、半導体回路、これらを組み込んだモジュール、電子機器等を含むものである。
〈熱硬化性樹脂組成物の作製〉
表1~2に示す配合で、各成分を容器に計り取り、自転・公転式の攪拌機(品名:マゼルスター(登録商標)、クラボウ製)で3分間攪拌混合した後、ビーズミルを使用して分散し、トルエンで粘度調整して、熱硬化性樹脂組成物を調整した。次に、熱硬化性樹脂組成物を、塗布機により、ポリエチレンテレフタレート(PET)基材上に、50~100μmの厚さになるよう塗布し、100~120℃で10~20分間、乾燥し、フィルム化した。
OPE-2St 1200は、三菱ガス化学(株)製スチレン末端変性PPE(分子量(Mn):1200)を、
AO-20は、ADEKA製ヒンダードフェノール系酸化防止剤(融点:220~222℃)を、
AO-330は、ADEKA製ヒンダードフェノール系酸化防止剤(融点:243~245℃)を、
AO-80は、ADEKA製ヒンダードフェノール系酸化防止剤(融点:110~120℃、3,9-ビス{2-[3-(3-tert-ブチル-4-ヒドロキシ-5-メチルフェニル)プロピオニロキシ]-1,1-ジメチルエチル}-2,4,8,10-テトラオキサスピロ[5.5]ウンデカン:
G1657は、クレイトンポリマー製SEBS(スチレン比13%エラストマー)を、
KBM-1403は、信越化学工業(株)製スチリル系カップリング剤(p-スチリルトリメトキシシラン)を、
カブラス4は、大阪ソーダ製スルフィド系カップリング剤を、
SFP-130MC M処理は、DENKA製SiO2フィラー(平均粒径:0.7μm品)に、メタクリル系カップリング剤(信越化学工業(株)製3-メタクリロキシプロピルトリメトキシシラン、製品名:KBM-503)処理を行ったものを、
FB-3SDX M処理は、DENKA製SiO2フィラー(平均粒径:3.4μm品)に、メタクリル系カップリング剤(信越化学工業(株)製3-メタクリロキシプロピルトリメトキシシラン、製品名:KBM-503)処理を行ったものを、
FB-3SDX O処理は、DENKA製SiO2フィラー(平均粒径:3.4μm品)に、オクテニル系カップリング剤(信越化学工業(株)製7-オクテニルトリメトキシシラン、製品名:KBM-1083)処理を行ったものを、
FB-3SDX 未処理は、DENKA製SiO2フィラー(平均粒径:3.4μm品)を、
使用した。
PET基材から剥離したフィルムを、200℃で1時間、1MPaでプレス硬化させた後、70×50mmに裁断し、スプリットポスト誘電体共振器(SPDR)により、誘電体共振周波数10GHzで、常温常湿の比誘電率(ε)、誘電正接(tanδ)を測定した。比誘電率は、3.5以下、誘電正接は、0.0030以下であると、好ましい。表1~2に、結果を示す。
上述の誘電特性を測定した硬化フィルムを、125℃で200時間、放置した後、常温常湿で、SPDR法(10GHz)により、tanδを測定し、tanδの変化量と変化率を求めた。変化率は、80%以下であると、好ましい。表1~2に、結果を示す。
2枚のCu箔(福田金属箔粉工業(株)製、品名:CF-T9FZSV)に、PET基材から剥離したフィルムを挟み、200℃で1時間、1MPaでプレス硬化させて接着した後、3cm×3cmに切出したものを試験片とし、270℃の半田浴に60秒間フロートし、膨れ発生の有無を、目視で確認した。膨れ等の外観に変化がなかった場合を「OK」(合格)、膨れが観察された場合を「NG」(不合格)とした。表1~2に、結果を示す。
上述の誘電特性を測定した硬化フィルムを、85℃/85%RHの恒温恒湿槽中に200時間放置した後、常温常湿で、SPDR法(10GHz)により、tanδを測定し、tanδの変化量と変化率を求めた。変化率は、55%以下であると好ましく、45%以下であると、より好ましく、40%以下であるとさらに好ましい。表3に、結果を示す。
Claims (9)
- (A)末端に不飽和二重結合を有する数平均分子量が800~4500のポリフェニレンエーテル、
(B)融点が200℃以上のフェノール系酸化防止剤、および
(C)熱可塑性エラストマー
を含むことを特徴とする、熱硬化性樹脂組成物。 - さらに、(D)無機充填剤を含む、請求項1記載の熱硬化性樹脂組成物。
- 一般式(10)のR24が、ビニル基、または(メタ)アクリル基である、請求項1~3のいずれか1項記載の熱硬化性樹脂組成物。
- 請求項1~4のいずれか1項記載の熱硬化性樹脂組成物を含む、絶縁性フィルム。
- 請求項1~4のいずれか1項記載の熱硬化性樹脂組成物を含む、層間絶縁性フィルム。
- 請求項1~4のいずれか1項記載の樹脂組成物の硬化物、請求項5記載の絶縁性フィルム、または請求項6記載の層間絶縁性フィルムの硬化物。
- 請求項1~4のいずれか1項記載の樹脂組成物の硬化物、請求項5記載の絶縁性フィルム、または請求項6記載の層間絶縁性フィルムの硬化物を有する、多層配線板。
- 請求項1~4のいずれか1項記載の熱硬化性樹脂組成物の硬化物、請求項5記載の絶縁性フィルム、または請求項6記載の層間絶縁性フィルムの硬化物を有する、半導体装置。
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