CN104349599B - The manufacturing method of component-mounted substrate - Google Patents

The manufacturing method of component-mounted substrate Download PDF

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Publication number
CN104349599B
CN104349599B CN201410381036.9A CN201410381036A CN104349599B CN 104349599 B CN104349599 B CN 104349599B CN 201410381036 A CN201410381036 A CN 201410381036A CN 104349599 B CN104349599 B CN 104349599B
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resin composition
curing resin
hot curing
resin
layer
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CN104349599A (en
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中村茂雄
渡边真俊
三宅千寻
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Ajinomoto Co Inc
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Ajinomoto Co Inc
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00Printed circuits
    • H05K1/02Details
    • H05K1/0271Arrangements for reducing stress or warp in rigid printed circuit boards, e.g. caused by loads, vibrations or differences in thermal expansion
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/24Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
    • C08J5/246Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs using polymer based synthetic fibres
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00Apparatus or processes for manufacturing printed circuits
    • H05K3/30Assembling printed circuits with electric components, e.g. with resistor
    • H05K3/32Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
    • H05K3/34Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
    • H05K3/3494Heating methods for reflowing of solder
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/06Thermal details
    • H05K2201/068Thermal details wherein the coefficient of thermal expansion is important

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Production Of Multi-Layered Print Wiring Board (AREA)
  • Laminated Bodies (AREA)

Abstract

The present invention provides the manufacturing method of component-mounted substrate, after the further slimming that can cope with component-mounted substrate, the high temperature installed even across the component for using reflow step, it is also difficult to generate the warpage of substrate;And the present invention provides hot curing resin composition, suitably forms the insulating layer of slim component-mounted substrate.The manufacturing method of component-mounted substrate, which is characterized in that include:The hot curing resin composition layer formed on internal substrate is heating and curing and forms the thermal cure step of solidified material layer and utilizes Reflow Soldering in the reflow step of the substrate upper mounting component with solidified material layer, the shrinking percentage (S1) in x y direction of the hot curing resin composition layer after thermal cure step is 0.35% or less, the shrinking percentage (S2) in x y direction of the solidified material layer after reflow step be 0.4% hereinafter, and S1 and S2 meet the relationship of S1≤0.08 S2;And hot curing resin composition, be used to form insulating layer, which is characterized in that with the shrinking percentage in the directions x y after the solidfied material of the hot curing resin composition being heated according to the thermal reflow profile figure of IPC/JEDEC J STD 020C(S2)For 0.4% hereinafter, the solidfied material of the hot curing resin composition is the shrinking percentage in the directions x y after heat cure(S1)The solidfied material of heat cure is carried out under the conditions of below for 0.35%, and S1 and S2 meet the relationship of S1≤0.08 S2.

Description

The manufacturing method of component-mounted substrate
Technical field
Insulating layer formation the present invention relates to the manufacturing method of component-mounted substrate and for component-mounted substrate is useful Hot curing resin composition.
Background technology
Manufacturing technology as multilayer printed board, it is known that be utilized on core substrate and replace lapped insulation layer and conductor layer Stacking (ビ Le De ア ッ プ) mode manufacturing method.In the manufacturing method that stack manner is utilized, usually, insulating layer Resin combination is set to be solidified to form.It is known as the resin combination, is used composition epoxy resin (patent document 1).
In recent years, when manufacturing multilayer printed board, in order to prevent caused by insulating layer and the thermal expansion difference of conductor layer Crackle, circuit modifications have the tendency that the inorganic filling materials (patent document such as high cooperation silicon dioxide granule in resin combination 2)。
Existing technical literature
Patent document
Patent document 1:Japanese Laid-Open 2007-254709 bulletins
Patent document 2:Japanese Laid-Open 2010-202865 bulletins.
Invention content
During the further slimming of desired multilayer printed board, core substrate, insulating layer thickness have gradually Thinning tendency.But due to the slimming of core substrate, insulating layer, insulating layer is caused to be susceptible to contraction caused by heat It influences.The inventors of the present invention are found that following problems:Component be installed on substrate is manufactured using Reflow Soldering (reflow) step When component-mounted substrate, the warpage of substrate is caused to be easy to bright due to the contraction of insulating layer under high temperature especially for slim substrate It is clear.
Therefore, the subject of the invention is to provide the manufacturing methods of component-mounted substrate, wherein even if in order to cope with component peace The further slimming of substrate is filled, and after the high temperature of the installation of the component by being generated by reflow step, it is also difficult to generate substrate Warpage.And then the subject of the invention is to provide hot curing resin compositions, suitably form slim component-mounted substrate Insulating layer.
The inventors of the present invention have carried out making great efforts research in view of the above subject, as a result, it has been found that for the insulation in component-mounted substrate The hot curing resin composition that layer uses in being formed, is conceived to the hot curing resin composition layer formed on internal substrate Thermal cure step after shrinking percentage and pass through heat cure formed solidified material layer (insulating layer) reflow step after contraction The difference of rate and these shrinking percentages, when the difference of these each shrinking percentages and these shrinking percentages is certain value or less, even if being slim Substrate can also inhibit the warpage of the substrate after reflow step, so as to complete the present invention.I.e. the present invention is containing below interior Hold.
[1] manufacturing method of component-mounted substrate, which is characterized in that including:The heat cure that will be formed on internal substrate Property resin composition layer be heating and curing and form the thermal cure step of solidified material layer and have at this using Reflow Soldering (reflow) The reflow step of the substrate upper mounting component of solidified material layer, hot curing resin composition layer is after thermal cure step in x-y The shrinking percentage (S1) in direction is 0.35% hereinafter, solidified material layer is 0.4% in the shrinking percentage (S2) in the directions x-y after reflow step Hereinafter, and S1 and S2 meet the relationship of S2-S1≤0.08;
[2] according to the method described in [1], wherein hot curing resin composition contains epoxy resin, curing agent and inorganic Packing material;
[3] according to the method described in [2], wherein contain silica as inorganic filling material;
[4] according to the method described in [2], wherein contain the silica doped with titanium as inorganic filling material;
[5] method according to any one of [2]~[4], wherein non-volatile in being thermally cured property resin combination Property at 100 mass % is divided into when, the content of the inorganic filling material in hot curing resin composition is 40 mass % or more;
[6] method according to any one of [1]~[5], wherein the heating temperature in thermal cure step is 120 DEG C ~240 DEG C;
[7] according to the method described in any one of [1]~[6], wherein the peak temperature in reflow step is 210 DEG C~ 330℃;
[8] method according to any one of [1]~[7], wherein hot curing resin composition layer utilizes prepreg It is formed, the prepreg is impregnated into fiber base material by being thermally cured property resin combination and is formed;
[9] method according to any one of [1]~[8], wherein hot curing resin composition layer is in internal layer base Laminate bond film on plate and the layer formed, the adhering film is to be formed with the thick composition of heat-curing resin on a carrier film The film of layer;
[10] method according to any one of [1]~[8], wherein hot curing resin composition layer is in internal layer Laminating strips have the prepreg of carrier and the layer that is formed on substrate, and the prepreg with carrier is formed on a carrier film will be hot Prepreg made of hardening resin composition is impregnated into fiber base material;
[11] method according to any one of [1]~[10], wherein the thickness of solidified material layer is 3~200 μm;
[12] method according to any one of [1]~[11], wherein component is semiconductor chip, insertion piece or nothing Source element;
[13] according to the method described in [12], wherein component is semiconductor chip;
[14] hot curing resin composition is used to form insulating layer, which is characterized in that with according to IPC/JEDEC J- The thermal reflow profile figure of STD-020C the solidfied material of the hot curing resin composition is heated after the directions x-y Shrinking percentage (S2) is 0.4% hereinafter, the solidfied material of the hot curing resin composition is the directions x-y after heat cure Shrinking percentage (S1) has carried out the solidfied material of heat cure under the conditions of being 0.35% below, and S1 and S2 meet the pass of S2-S1≤0.08 System;
[15] according to the hot curing resin composition described in [14], wherein the peak temperature of Reflow Soldering is 260 DEG C;
[16] according to the hot curing resin composition described in [15], wherein hot curing resin composition contains epoxy Resin, curing agent and inorganic filling material;
[17] according to the hot curing resin composition described in [16], wherein contain titanium dioxide as inorganic filling material Silicon;
[18] according to the hot curing resin composition described in [16], wherein as inorganic filling material contain doped with The silica of titanium;
[19] hot curing resin composition according to any one of [16]~[18], wherein being thermally cured property tree When involatile constituent in oil/fat composition is set as 100 mass %, inorganic filling material in hot curing resin composition contains Amount is 40 mass % or more;
[20] prepreg, by making the hot curing resin composition described in any one of [15]~[19] be impregnated into fibre It is formed in Wiki material;
[21] multilayer printed circuit board, wherein the heat-curing resin described in any one of [15]~[19] is utilized to combine The solidfied material of object and form insulating layer;
[22] component-mounted substrate, wherein utilize the hot curing resin composition described in any one of [15]~[19] Solidfied material and form insulating layer;
[23] according to the component-mounted substrate described in [22], wherein component is semiconductor chip, insertion piece or passive member Part;
[24] according to the component-mounted substrate described in [23], wherein component is semiconductor chip.
According to the present invention, it is possible to provide the manufacturing method of component-mounted substrate, this method are walked even across Reflow Soldering is utilized After the high temperature of rapid component installation, it is also difficult to generate the warpage of substrate.And then according to the present invention, it is possible to provide heat-curing resin group Object is closed, the insulating layer for being suitable for slim component-mounted substrate is formed.The present invention can be easy to generate particularly suitable for manufacture The slim component-mounted substrate of the warpage of substrate.
Description of the drawings
Fig. 1 is the figure of the title between A, B, C, D each point shown when calculating S1 and S2;
Fig. 2 is the figure for illustrating the thermal reflow profile figure described in IPC/JEDEC J-STD-020C.
Specific implementation mode
The present invention is explained in detail following with suitable embodiment of the invention.
The embodiment of the present invention is the manufacturing method of component-mounted substrate, which is characterized in that includes:It will be in internal layer base The hot curing resin composition layer formed on plate is heating and curing and forms the thermal cure step of solidified material layer and utilize back Fluid welding is in the reflow step of the substrate upper mounting component with solidified material layer, and hot curing resin composition layer is through heat cure After step the shrinking percentage (S1) in the directions x-y be 0.35% hereinafter, solidified material layer after reflow step in the contraction in the directions x-y Rate (S2) be 0.4% hereinafter, and S1 and S2 meet the relationship of S2-S1≤0.08.
< thermal cure steps >
The manufacturing method of the present invention contains thermal cure step, in thermal cure step, the heat that will be formed on internal substrate Cured resin composition layer is heating and curing and forms solidified material layer.
The temperature of heat cure can be different according to the composition of specifically used hot curing resin composition, but from when solidification Between shortening and substrate heat resistance balance from the point of view of, generally 120 DEG C~240 DEG C, preferably 140 DEG C~210 DEG C, More preferably 150 DEG C~200 DEG C.
" internal substrate " in the present invention is to manufacture object when manufacturing the printed base plates such as the built-in substrate of component as centre Substrate refers to enterprising in internal substrate and forms insulating layer and/or conductor layer, constitutes the substrate of the internal layer of printed base plate.Internal layer The one or both sides of substrate can have the circuit layout for having carried out pattern processing.It, can be with as the substrate for internal substrate Enumerate such as glass epoxy substrate, metal substrate, polyester substrate, polyimide substrate, BT resin substrates, thermohardening type polyphenylene oxide Substrate, centreless (coreless) substrate etc..
When having circuit layout on the one or both sides of substrate, the thickness of the circuit layout is not particularly limited, but from Layer slimming from the point of view of, preferably 70 μm hereinafter, more preferably 30 μm hereinafter, in turn be preferably 20 μm or less.Circuit The lower limit of the thickness of wiring is not particularly limited, preferably 1 μm or more, more preferably 3 μm or more, and then preferably 5 μm or more.
The line width of circuit layout/spacing ratio (ラ イ Application/ス ペ ー ス ratios) is not particularly limited, but in order to inhibit firming body The fluctuating on surface, preferably 200/200 μm hereinafter, more preferably 100/100 μm hereinafter, in turn be preferably 40/40 μm hereinafter, into And more preferably 20/20 μm hereinafter, particularly preferably 8/8 μm.Line width/spacing of circuit layout than lower limit do not limit especially System, but in order to keep imbedibility of the resin between spacing good, preferably 0.5/0.5 μm or more, more preferably 1/1 μm or more.
The hot curing resin composition used in the hot curing resin composition layer of the present invention is not particularly limited, As long as its solidfied material as insulating layer, have sufficient hardness and insulating properties.Such as it is preferable to use contain epoxy resin, solid The hot curing resin composition of agent and inorganic filling material.
(epoxy resin)
Epoxy resin used in the present invention, is not particularly limited, and can enumerate bisphenol A type epoxy resin, Bisphenol F Type epoxy resin, bisphenol-s epoxy resin, bisphenol AF type epoxy resin, novolac type epoxy resin, tert butyl-catechol Type epoxy resin, naphthol type epoxy resin, naphthalene type epoxy resin, naphthylene ether type epoxy, glycidyl amine epoxy tree Fat, biphenyl type epoxy resin, anthracene type epoxy resin, linear aliphatic epoxy resin, has fourth two at Cresol formaldehyde type epoxy resin The epoxy resin of alkene structure, hetero ring type epoxy resin, contains whorled epoxy resin, hexamethylene diformazan at alicyclic epoxy resin Alcohol type epoxy resin, trihydroxy methyl type epoxy resin, halogenated epoxy resin, dicyclopentadiene-type epoxy resin etc..These epoxies Resin can use a kind or two or more is applied in combination.
Wherein, it is improved from heat resistance, from the point of view of insulating reliability raising and the adaptation raising of metal foil, preferably It is bisphenol A type epoxy resin, naphthol type epoxy resin, naphthalene type epoxy resin, biphenyl type epoxy resin, naphthylene ether type asphalt mixtures modified by epoxy resin Fat, anthracene type epoxy resin, the epoxy resin with butadiene structure, dicyclopentadiene-type epoxy resin.Specifically, it can enumerate Such as bisphenol A type epoxy resin (Mitsubishi Chemical's (strain) makes " エ ピ コ ー ト 828EL ", " YL980 "), bisphenol f type epoxy resin 1: 1 melange (Nippon Steel's chemistry (strain) of (Mitsubishi Chemical's (strain) makes " jER806H ", " YL983U "), bisphenol A-type and bisphenol-f type Make " ZX1059 "), 2 functional epoxy resins of naphthalene type (DIC (strain) make " HP4032 ", " HP4032D ", " HP4032SS ", " EXA4032SS "), 4 functional epoxy resins of naphthalene type (DIC (strain) make " HP4700 ", " HP4710 "), naphthol type epoxy resin (east All chemical conversion (strain) systems " ESN-475V "), (ダ イ セ Le chemical industry (strain) makes " PB- for epoxy resin with butadiene structure 3600 "), (Japanese chemical drug (strain) system " NC3000H ", " NC3000L ", " NC3100 ", the Mitsubishi of the epoxy resin with biphenyl structural Chemical (strain) system " YX4000 ", " YX4000H ", " YX4000HK ", " YL6121 "), (Mitsubishi Chemical's (strain) makes anthracene type epoxy resin " YX8800 "), naphthylene ether type epoxy (DIC (strain) make " EXA-7310 ", " EXA-7311 ", " EXA-7311L ", " EXA7311-G3 "), dicyclopentadiene-type epoxy resin (DIC (strain) make " HP-7200H ") etc..
Epoxy resin may be two kinds or more, and preferably comprise the asphalt mixtures modified by epoxy resin with 2 or more epoxy groups in 1 molecule Fat.Wherein, it is the aromatic system ring of liquid with 2 or more epoxy groups, at a temperature of 20 DEG C further preferably in 1 molecule Oxygen resin (hereinafter referred to as " liquid-state epoxy resin ") and in 1 molecule have 3 or more epoxy groups, be at a temperature of 20 DEG C The mode of solid aromatic system epoxy resin (hereinafter referred to as " solid epoxy resin ").It should be noted that heretofore described Aromatic system epoxy resin refers to the epoxy resin for having aromatic ring structure in its intramolecular.As epoxy resin, by liquid ring Oxygen resin and solid epoxy resin and used time, from the flexibility with appropriateness when using resin combination in the form of adhering film Angle or from the solidfied material of resin combination have suitable fracture strength from the point of view of, mixing ratio (liquid epoxy tree Fat: solid epoxy resin) by quality ratio be preferably 1: 0.1~1: 2 range, more preferably 1: 0.3~1: 1.8 range, Preferably 1: 0.6~1: 1.5 range in turn.
Liquid-state epoxy resin be preferably bisphenol A type epoxy resin, bisphenol f type epoxy resin, novolac type epoxy resin, And naphthalene type epoxy resin, more preferably bisphenol A type epoxy resin and naphthalene type epoxy resin.They can use a kind or by 2 kinds Combination of the above uses.
Solid epoxy resin is preferably 4 function naphthalene type epoxy resins, Cresol formaldehyde type epoxy resin, bicyclopentadiene type ring Oxygen resin, triphenol (trisphenol) epoxy resin, naphthol novolac epoxy resin, biphenyl type epoxy resin or naphthylene ether type Epoxy resin, more preferably 4 function naphthalene type epoxy resins, biphenyl type epoxy resin and naphthylene ether type epoxy.They can To use a kind or two or more be applied in combination.
It is strong from the machinery for the solidfied material for improving resin combination in the resin combination suitable for the manufacturing method of the present invention From the point of view of degree, water resistance, when the non-volatile component in resin combination is set as 100 mass %, the content of epoxy resin Preferably 3~35 mass %, more preferably 5~40 mass %, and then preferably 10~45 mass %.
(curing agent)
Curing agent used in the present invention, is not particularly limited, and can enumerate such as phenol (phenol) system solidification Agent, naphthols system curing agent, active ester system curing agent, benzoxazine system curing agent, cyanate system curing agent, acid anhydrides system curing agent Deng wherein preferably phenol system curing agent, naphthols system curing agent, active ester system curing agent.These curing agent can use a kind, Or two or more is applied in combination.
It as phenol system curing agent, naphthols system curing agent, is not particularly limited, novolak tree of for example having can be enumerated The phenol system curing agent of fat (ノ ボ ラ ッ Network) structure or the naphthols system curing agent with linear phenol-aldehyde resin structure, preferably line Type phenolic resin, naphthol novolac resin, naphthols aralkyl-type resin, contains triazine at the linear phenol-aldehyde resin containing triazine skeleton The naphthol resin of skeleton, biphenyl aralkyl-type phenol resin.As commercially available product, biphenyl aralkyl-type phenol resin can be enumerated " MEH-7700 ", " MEH-7810 ", " MEH-7851 ", " MEH7851-4H " (bright and chemical conversion (strain) system), " GPH " (Japanese chemical drug (strain) makes), naphthol novolac resin can enumerate " NHN ", " CBN " (Japanese chemical drug (strain) system), and naphthols aralkyl-type resin can be with Enumerate " SN170 ", " SN180 ", " SN190 ", " SN475 ", " SN485 ", " SN495 ", " SN395 ", " SN375 " (Dongdu chemical conversion (strain) makes), linear phenol-aldehyde resin can enumerate " TD2090 " (DIC (strain) systems), the linear phenol-aldehyde resin containing triazine skeleton " LA3018 ", " LA7052 ", " LA7054 ", " LA1356 " (DIC (strain) systems) etc..They can use a kind, or by two or more It is used in combination.
Active ester system curing agent is not particularly limited, it is generally preferable to use phenolic ester class (phenol esters), benzenethiol ester (thiophenol esters) class, N- hydroxylamines esters, esters of heterocycle hydroxyl compound etc. have 2 or more in 1 molecule The compound of the high ester group of reactivity.The active ester system curing agent preferably passes through carboxylic acid compound and/or thiocarboxylic acid chemical combination The condensation reaction of object and hydroxy compounds and/or mercaptan compound and obtain.From the viewpoint of improving heat resistance, particularly preferably The active ester system curing agent obtained by carboxylic acid compound and hydroxy compounds.More preferably by carboxylic acid compound and oxybenzene compound And/or the active ester system curing agent that naphthol compound obtains.As carboxylic acid compound, it can be mentioned, for example:Benzoic acid, acetic acid, amber Amber acid, maleic acid, itaconic acid, phthalic acid, M-phthalic acid, terephthalic acid (TPA), Pyromellitic Acid etc..As phenol chemical combination Object or naphthol compound, it can be mentioned, for example:Quinhydrones, resorcinol, bisphenol-A, Bisphenol F, bisphenol S, phenolphthalin, the bisphenol-A that methylates, Methylate Bisphenol F, the bisphenol S that methylates, phenol, o-cresol, metacresol, paracresol, catechol, alpha-Naphthol, betanaphthol, 1,5- bis- Hydroxyl naphthalene, 1,6- dihydroxy naphthlenes, 2,6- dihydroxy naphthlenes, dihydroxy benaophenonel, trihydroxybenzophenone, tetrahydroxy hexichol first Ketone, phloroglucin, benzenetriol (benzenetriol), the dicyclopentadiene-type bisphenol compounds (hexichol of polycyclopentadithio.henes ene-type Phenolic compounds), linear phenol-aldehyde resin (phenol novolac) etc..Active ester system curing agent can use one kind or two or more. As active ester system curing agent, active ester system curing agent disclosed in Japanese Unexamined Patent Publication 2004-277460 bulletins can be used, separately Commercially available commodity can also be used outside.As commercially available active ester system curing agent, preferably contain dicyclopentadiene-type biphenol It is condensed the benzoylate etc. of the substance of structure, the acetylate of linear phenol-aldehyde resin, linear phenol-aldehyde resin, wherein being more preferably The substance of structure is condensed containing dicyclopentadiene-type biphenol.Specifically, it is condensed knot as containing dicyclopentadiene-type biphenol The substance of structure, can enumerating EXB9451, EXB9460, EXB9460S-65T, HPC8000-65T, (DIC (strain) systems, active group are worked as About 223), as the acetylate of linear phenol-aldehyde resin, can enumerating DC808, (Mitsubishi Chemical's (strain) system, active group equivalent are about for amount 149), as the benzoylate of linear phenol-aldehyde resin, can enumerating YLH1026, (Mitsubishi Chemical's (strain) system, active group equivalent are about 200), (Mitsubishi Chemical's (strain) system, active group are worked as by YLH1030 (Mitsubishi Chemical's (strain) system, active group equivalent about 201), YLH1048 Amount about 245) etc., wherein HPC-8000-65T from the storage stability of varnish, solidfied material coefficient of thermal expansion from the point of view of be Preferably.
As the active ester system curing agent for being condensed structure containing dicyclopentadiene-type biphenol, more specifically, can enumerate The compound of following formula.
[chemical formula 1]
(in formula, R is phenyl, naphthalene, and k indicates 0 or 1, and n is calculated as 0.05~2.5 with being averaged for repetitive unit).
From the point of view of so that dielectric loss tangent is reduced, heat resistance is made to improve, R is preferably naphthalene, and on the other hand, k is excellent It is selected as 0, in addition n is preferably 0.25~1.5.
Benzoxazine system curing agent is not particularly limited, and as concrete example, can enumerating F-a, P-d, (four countries are melted into (strain) System), HFB2006M (Showa macromolecule (strain) system) etc..
Cyanate system curing agent is not particularly limited, and can enumerate such as linear phenol-aldehyde resin (ノ ボ ラ ッ Network) type (line style Phenolic resin type, alkyl novalac-type etc.) it is cyanate system curing agent, dicyclopentadiene-type cyanate system curing agent, double Phenolic (bisphenol A-type, bisphenol-f type, bisphenol S type etc.) cyanate system curing agent and their part are by the prepolymer of triazine Deng.The weight average molecular weight of cyanate system curing agent is not particularly limited, preferably 500~4500, more preferably 600~3000. As the concrete example of cyanate system curing agent, such as bisphenol A dicyanate, polyphenol cyanate (oligomeric (3- methylenes can be enumerated Base -1,5- phenylenecyanates)), 4,4' methylene bis (2,6- 3,5-dimethylphenyls cyanate), 4,4'- ethylenes phenyl two It is bis- (4- cyanates) phenyl-propanes of cyanate, hexafluoro bisphenol-a dicyanate, 2,2-, 1,1- bis- (4- cyanates phenylmethanes), double Bis- (4- cyanate phenyl -1- (methyl the ethylidene)) benzene of (4- cyanate -3,5- 3,5-dimethylphenyls) methane, 1,3-, bis- (4- cyanic acid Ester phenyl) the 2 function cyanate ester resins such as thioether, bis- (4- cyanates phenyl) ethers, by linear phenol-aldehyde resin, cresol formaldehyde resin, A part of quilt of multifunctional cyanate ester resin, these cyanate ester resins derived from phenolic resin containing bicyclopentadiene structure etc. The prepolymer etc. of triazine.They can use a kind or two or more is applied in combination.
As commercially available cyanate ester resin, can enumerate:Novalac-type multifunctional cyanate ester tree shown in following formula Fat (ロ Application ザ ジ ャ パ Application (strain) system, PT30S, cyanate equivalent 124)
[chemical formula 2]
[in formula, n indicates arbitrary number (preferably 0~20) in terms of average value];
Part or all of bisphenol A dicyanate shown in following formula is formed the prepolymer (ロ of tripolymer by triazine Application ザ ジ ャ パ Application (strain) system, BA230, cyanate equivalent 232)
[chemical formula 3]
Cyanate ester resin (ロ Application ザ ジ ャ パ Application (strain) system, DT- shown in following formula containing bicyclopentadiene structure 4000、DT-7000)
[chemical formula 4]
(in formula, n indicates 0~5 number in terms of average value) etc..
Acid anhydrides system curing agent is not particularly limited, but can enumerate for example phthalic anhydride, tetrabydrophthalic anhydride, Hexahydrophthalic anhydride, methyl tetrahydrophthalic anhydride, methylhexahydrophthalic anhydride, methylnadic anhydride, hydrogen Change methylnadic anhydride, trialkyl tetrabydrophthalic anhydride, dodecenylsuccinic anhydride, 5- (2,5- dioxotetrahydros -3- Furyl (Off ラ ニ Le)) -3- methyl -3- cyclohexene -1,2- dicarboxylic acid anhydrides, trimellitic anhydride, pyromellitic dianhydride, benzophenone Tetracarboxylic acid dianhydride, bibenzene tetracarboxylic dianhydride, naphthalenetetracarbacidic acidic dianhydride, two O-phthalic acid dianhydride of hydroxyl, 3,3'-4,4'- diphenyl sulphone (DPS)s Tetracarboxylic acid dianhydride, 1,3,3a, 4,5,9b- hexahydros -5- (tetrahydrochysene -2,5- dioxo -3- furyls)-naphtho- [1,2-C] furans -1, 3- diketone, ethylene glycol are bis- (dehydration trimellitate)(エチレングリコールビス(アンヒドロトリメリテート))、 Styrene with it is maleic acid copolymerized obtained by the polymer-types such as styrene-maleic acid resin acid anhydrides etc..
In hot curing resin composition, from the mechanical strength or water resistance of the solidfied material for improving resin combination The ratio between sum of reactive group of angle consideration, the sum of the epoxy group of (A) epoxy resin and (B) curing agent preferably 1: 0.2~ 1: 2, more preferably 1: 0.3~1: 1.5, and then preferably 1: 0.4~1: 1.It should be noted that epoxy present in resin combination The sum of the epoxy group of resin refers to for whole epoxy resin, will be worked as with the solid constituent quality divided by epoxy of each epoxy resin Value obtained by amount carries out total value, the sum of the reactive group of curing agent refer to for whole curing agent, will be with each curing agent Value carries out total value obtained by solid constituent quality divided by reactive group equivalent.
In above-mentioned resin combination, examined from the mechanical strength of solidfied material or the angle of water resistance for improving resin combination Consider, when the non-volatile component in resin combination is set as 100 mass %, the content of curing agent is preferably 3~30 mass %, more excellent It is selected as 5~25 mass %, and then preferably 10~20 mass %.
(inorganic filling material)
The hot curing resin composition of the present invention preferably comprises inorganic fill from the point of view of coefficient of thermal expansion reduction Material.As the inorganic filling material used, be not particularly limited, can enumerate for example silica, aluminium oxide, barium sulfate, Talcum, clay, mica powder, aluminium hydroxide, magnesium hydroxide, calcium carbonate, magnesium carbonate, magnesia, boron nitride, aluminium borate, barium titanate, Strontium titanates, calcium titanate, magnesium titanate, bismuth titanates, titanium oxide, barium zirconate, calcium zirconate etc..Wherein it is preferably silica.In addition, excellent It is selected as amorphous silica, silica is crushed, dissolves silica, crystalline silica, synthetic silica, hollow two Silica, preparing spherical SiO 2, doped with silica such as the silica of titanium.In addition, as silica, preferably spherical Silica.As the example of spherical silica, " SOC1 ", " SOC2 " of (strain) ア De マ テ ッ Network ス can be enumerated. Inorganic filling material can use a kind or two or more is applied in combination.In the present invention, the adjustment of coefficient of thermal expansion can lead to The type, amount of ingredient contained in adjustment hot curing resin composition are crossed to carry out, particularly, inorganic filling material has significantly Help the low thermal expansion of thermally curable resin composition, therefore can be by the adjustment of the type, amount of inorganic filling material, suitably Ground carries out the adjustment of coefficient of thermal expansion.In addition, doped with titanium silica especially have in inorganic filling material it is low Tendency is thermally expanded, therefore in the present invention, especially can suitably be used to adjust the value of coefficient of thermal expansion.
" doped with silica of titanium " is, for example, by making TiO2-SiO2The glass of glass forms raw material, i.e. TiCl4With SiCl4It is mixed after each autopneumatolysis, and makes TiO obtained by its heating hydrolysis (flame hydrolysis) in oxyhydrogen flame2-SiO2Glass Glass particle.Silica doped with titanium is well known, as the example of commercially available product, can enumerate " the AZ of Asahi Glass (strain) system Filler (AZ Off ィ ラ ー) ".It, will be contained in resin combination when coordinating the silica doped with titanium in inorganic filling material The amount of inorganic filling material be set as 100 mass %, the use level of the silica doped with titanium preferably in inorganic filling material For 10 mass % or more, more preferably 20 mass % or more, more preferably 30 mass % or more, more preferably 40 mass % or more, more Preferably 50 mass % or more, more preferably 60 mass % or more, more preferably 70 mass % or more, more preferably 80 mass % with On, more preferably 90 mass % or more, particularly preferably 100 mass %.
It should be noted that as inorganic filling material, in order to improve moisture-proof, dispersibility, silane coupling agent (ring is preferably used Oxosilane system coupling agent, amino silicone methane series coupling agent, hydrosulphonyl silane system coupling agent etc.), titanate esters system coupling agent, silazane chemical combination The inorganic filling material that the surface conditioning agents such as object are surface-treated.They can use a kind or two or more is applied in combination.
As epoxy silane system coupling agent, such as glycidoxypropyltrime,hoxysilane, the third oxygen of epoxy can be enumerated Base propyl-triethoxysilicane, glycidoxypropyl diethoxy silane, glycidyl butyl trimethoxy silane, (3,4- epoxycyclohexyl) ethyl trimethoxy silane etc., as amino silicone methane series coupling agent, can enumerate such as aminopropyl Methoxy silane, aminopropyltriethoxywerene werene, N- phenyl -3- TSL 8330s, N-2 (amino-ethyl) ammonia Base propyl trimethoxy silicane etc. can enumerate such as mercaptopropyi trimethoxy silane, mercapto as hydrosulphonyl silane system coupling agent Base propyl-triethoxysilicane etc..They can use a kind or two or more is applied in combination.It, can be with as commercially available coupling agent Enumerate such as SHIN-ETSU HANTOTAI's chemical industry (strain) system " KBM403 " (3- glycidoxypropyltrime,hoxysilanes), SHIN-ETSU HANTOTAI's chemical industry (strain) makes " KBM803 " (3-mercaptopropyi trimethoxy silane), SHIN-ETSU HANTOTAI's chemical industry (strain) makes " KBE903 " (3- aminopropyls Triethoxysilane), SHIN-ETSU HANTOTAI's chemical industry (strain) system " KBM573 " (N- phenyl -3- TSL 8330s) etc..
The average grain diameter of inorganic filling material is not particularly limited, but the upper limit value of the average grain diameter of inorganic filling material, From the point of view of carrying out fine wiring formation on the insulating layer, preferably 5 μm hereinafter, more preferably 3 μm hereinafter, in turn preferably For 1 μm hereinafter, be more preferably in turn 0.7 μm hereinafter, be especially more preferably 0.5 μm hereinafter, particularly preferably 0.4 μm hereinafter, outstanding It is preferably 0.3 μm or less.On the other hand, when composition epoxy resin is formed resin composition Chinese varnish, from preventing varnish Viscosity increase, from the point of view of operability reduces, the lower limiting value of the average grain diameter of inorganic filling material be preferably 0.01 μm with On, more preferably 0.03 μm or more, and then preferably 0.05 μm or more, especially and then preferably 0.07 μm or more, particularly preferably It is 0.1 μm or more.The average grain diameter of above-mentioned inorganic filling material can utilize the laser based on Michaelis (Mie) scattering theory to spread out Penetrate-scattering method measures.Specifically, using laser diffraction formula particle size distribution device, inorganic fill is made with volume reference Its median diameter is set as average grain diameter, it is possible thereby to measure by the size distribution of material.Determination sample can it is preferable to use utilizations Ultrasonic wave makes the substance that inorganic filling material is dispersed in water.As laser diffraction formula particle size distribution device, can use Horiba Ltd LA-500,750,950 etc..
From the point of view of coefficient of thermal expansion reduction, when the non-volatile component in resin combination is set as 100 mass %, Content when coordinating inorganic filling material is preferably 40 mass % or more, more preferably 50 mass % or more, and then more preferably 60 Quality %.When the content of inorganic filling material is very few, the coefficient of thermal expansion of solidfied material has the tendency that getting higher.Inorganic filling material When content is excessive, have the tendency that the tendency that solidfied material becomes fragile or peel strength reduces, therefore the maximum of preferred inorganic filling material Content is 90 mass % or less, preferably 85 mass % or less.
The present invention resin combination in, and then can coordinate other compositions (such as thermoplastic resin, solidification promote The additives such as agent, fire retardant).
Thermoplastic resin-
Thermoplastic resin can enumerate such as phenoxy resin, polyvinyl acetal resin, polyimide resin, polyamide acyl Imide resin, polyethersulfone resin and polysulfone resin etc..Thermoplastic resin can be used alone, or be two kinds or more.
The weight average molecular weight of the polystyrene conversion of thermoplastic resin is preferably 8000~70000 range, more preferably 10000~60000 range, so preferably 20000~60000 range.The weight of the polystyrene conversion of thermoplastic resin Average molecular weight is measured with gel permeation chromatography (GPC) method.Specifically, the weight average molecular weight of the polystyrene conversion of thermoplastic resin (strain) Shimadzu Seisakusho Ltd. LC-9A/RID-6A can be used as measurement device, use Showa electrician (strain) Shodex K- processed 800P/K-804L/K-804L is as pillar, using chloroform etc. as mobile phase, and is measured under 40 DEG C of column temperature, uses The standard curve of standard polystyren calculates.
Phenoxy resin can be enumerated for example with selected from bisphenol A skeleton, Bisphenol F skeleton, bisphenol S skeleton, bis-phenol acetophenone Skeleton, linear phenol-aldehyde resin skeleton, biphenyl backbone, fluorene skeleton, bicyclopentadiene skeleton, enb skeleton, naphthalene skeleton, anthracene bone The phenoxy resin of the skeleton of one or more of frame, adamantane framework, terpenes skeleton and trimethyl-cyclohexane skeleton.Phenoxy resin End can be the arbitrary functional group such as phenolic hydroxyl group, epoxy group.Phenoxy resin can be used alone or by two or more simultaneously With.As the concrete example of phenoxy resin, bisphenol-A bone (is contained in " 1256 " and " 4250 " that can enumerate Mitsubishi Chemical's (strain) system The phenoxy resin of frame), " YX8100 " (phenoxy resin containing bisphenol S skeleton) and " YX6954 " (contain bis-phenol acetyl benzene skeleton Phenoxy resin), it is other can also enumerate Dongdu chemical conversion (strain) system " FX280 " and " FX293 ", Mitsubishi Chemical's (strain) make " YL7553 ", " YL6794 ", " YL7213 ", " YL7290 " and " YL7482 " etc..
As the concrete example of polyvinyl acetal resin, the electrochemical Block チ ラ ー of electrochemically industrial (strain) system can be enumerated Le 4000-2,5000-A, 6000-C, 6000-EP, the エ ス レ ッ Network BH series of ponding chemical industry (strain) system, BX series, KS Series, BL series, BM series etc..
As the specific example of polyimide resin, can enumerate new Japan Chemical (strain) system " リ カ コ ー ト SN20 " and “リカコートPN20”.As the specific example of polyimide resin, can also enumerate makes 2 functional hydroxyl groups end polybutadienes Linear polyimides (Japanese Unexamined Patent Publication 2006-37083 bulletins obtained by alkene, diisocyanate cpd and quaternary anhydride reaction The substance of record), polyimides (Japanese Unexamined Patent Publication 2002-12667 bulletins and Japanese Unexamined Patent Publication containing silicone matrix Substance described in 2000-319386 bulletins etc.) etc. modified polyimides.
As the concrete example of polyamide-imide resin, " the バ イ ロ マ ッ Network ス of Japan's weaving (strain) system can be enumerated HR11NN " and " バ イ ロ マ ッ Network ス HR16NN ".As the concrete example of polyamide-imide resin, Hitachi in addition can be enumerated The polyamidoimide " KS9100 " containing silicone matrix, modified polyamides acyl such as " KS9300 " of chemical conversion industry (strain) system Imines.
As the concrete example of polyethersulfone resin, can enumerate " PES5003P " etc. of Sumitomo Chemical (strain) system.
As the concrete example of polysulfone resin, the polysulfones of ソ Le ベ イ ア De バ Application ス ト Port リ マ ー ズ (strain) systems can be enumerated " P1700 ", " P3500 " etc..
When the content of non-volatile component in resin combination is set as 100%, thermoplastic resin in resin combination Content is preferably 0.1 mass of mass %~20 %.By making the content of thermoplastic resin be the range, the viscosity of resin combination Become suitable, thickness or the uniform resin combination of volume character can be formed.Non-volatile component in resin combination is set For 100 mass % when, the content of the thermoplastic resin in resin combination is more preferably 1 mass of mass %~10 %.
Curing accelerator-
Curing accelerator can enumerate for example phosphorus system curing accelerator, amine system curing accelerator, imidazoles system curing accelerator, Guanidine system curing accelerator, metal system curing accelerator etc., preferably amine system curing accelerator, imidazoles system curing accelerator, metal It is curing accelerator.
As phosphorus system curing accelerator, such as triphenylphosphine, Peng Suan phosphonium compounds, tetraphenylphosphoniphenolate tetraphenyl boron can be enumerated Hydrochlorate, Zheng Ding Ji Phosphonium tetraphenyl borate salts, 4-butyl-phosphonium caprate, (4- aminomethyl phenyls) triphenyl phosphonium rhodanate, tetraphenyl Phosphonium rhodanate, Ding base triphenyl phosphonium rhodanates etc., preferably triphenylphosphine, 4-butyl-phosphonium caprate.
Amine system curing accelerator can enumerate trialkylamine, 4-dimethylaminopyridine, benzyl such as triethylamine, tri-n-butylamine Base dimethyl amine, 2,4,6- tri- (dimethylaminomethyl) phenol, 1,8- diazabicyclos [5.4.0]-hendecene etc., preferably 4-dimethylaminopyridine, 1,8- diazabicyclos [5.4.0]-hendecene.
As imidazoles system curing accelerator, such as 2-methylimidazole, 2- undecyl imidazoles, 2- heptadecyls can be enumerated Imidazoles, DMIZ 1,2 dimethylimidazole, 2-ethyl-4-methylimidazole, DMIZ 1,2 dimethylimidazole, 2-ethyl-4-methylimidazole, 2- phenyl Imidazoles, 2- phenyl -4-methylimidazole, 1 benzyl 2 methyl imidazole, 1- benzyl -2- phenylimidazoles, 1- cyano ethyl -2- methyl Imidazoles, 1- cyano ethyl -2- undecyl imidazoles, 1- cyano ethyls -2-ethyl-4-methylimidazole, 1- cyano ethyl -2- phenyl Imidazoles, 1- cyano ethyl -2- undecyl imidazole trimellitic acids salt, 1- cyano ethyl -2- phenylimidazole trimellitic acids salt, 2,4- diamino -6- [2'- methylimidazolyls-are (1')]-ethyl-s-triazine, 2,4- diamino -6- [2'- undecyl imidazoles Base-is (1')]-ethyl-s-triazine, 2,4- diamino -6- [2'- ethyl -4'- methylimidazolyls-are (1')]-ethyl-s-triazine, 2, 4- diamino -6- [2'- methylimidazolyls-are (1')]-ethyl-s-triazine isocyanuric acid adduct, 2- phenylimidazole isocyanuric acids Addition product, 2- phenyl -4,5- bishydroxymethyls imidazoles, 2- phenyl -4- methyl -5- hydroxymethylimidazoles, 2,3- dihydro -1H- pyrroles Cough up simultaneously [1,2-a] benzimidazole, 1- dodecyl -2- methyl-3-benzyl imidazoles chloride, 2-methylimidazole quinoline, 2- phenyl The adduct of the imidazolium compounds such as imidazoline and imidazolium compounds and epoxy resin, preferably 2-ethyl-4-methylimidazole, 1- benzyls Base -2- phenylimidazoles.
As guanidine system curing accelerator, such as dicyandiamide, 1- methylguanidines, 1- ethyl guanidines, 1- cyclohexyl guanidine, 1- can be enumerated Guanidines, 1- (o-tolyl) guanidine, dimethylguanidine, diphenylguanidine, trimethyl guanidine, tetramethylguanidine, pentamethyl guanidine, tri- nitrogen of 1,5,7- Miscellaneous bicyclic [4.4.0] decyl- 5- alkene, 7- methyl-1s, tri- azabicyclos of 5,7- [4.4.0] decyl- 5- alkene, 1- methyl biguanides, 1- ethyls Biguanides, 1- normal-butyls biguanides, 1- n-octadecane bases biguanides, 1,1- dimethylbiguanides, 1,1- diethyl biguanides, 1- cyclohexyl are double Guanidine, 1- allyls biguanides, 1- phenyl biguanides, 1- (o-tolyl) biguanides etc., preferably dicyandiamide, 1,5,7- tri- azabicyclos [4.4.0] decyl- 5- alkene.
Metal system curing accelerator is not particularly limited, and can enumerate the metal such as cobalt, copper, zinc, iron, nickel, manganese, tin , metal-organic complex or organic metal salt.As the concrete example of metal-organic complex, acetylacetone cobalt can be enumerated (II), organic copper complex, the zinc acetylacetonate such as organic cobalt complex such as acetylacetone cobalt (III), acetylacetone copper (II) (II) the organic nickels complexing such as Organic-iron complexes, nickel acetylacetonate (II) such as organozinc complexes, ferric acetyl acetonade (III) such as Organic manganese complexs such as object, manganese acetylacetonate (II) etc..As organic metal salt, such as zinc octoate, tin octoate, ring can be enumerated Alkanoic acid zinc, cobalt naphthenate, stearic acid tin, zinc stearate etc..They can use a kind or two or more is applied in combination.
In the resin combination of the present invention, as metal system curing accelerator, it is preferable to use organic cobalt complex, especially It is preferable to use acetylacetone cobalt (III).It is solid for metal system when non-volatile component in resin combination is set as 100 mass % Change the content of accelerating agent, the content of the metal based on metal system curing catalysts is preferably the range of 25ppm~500ppm, more excellent It is selected as the range of 30ppm~200ppm.
Curing accelerator can be used alone, two or more can also be applied in combination.It will be non-in resin combination When volatile ingredient is set as 100 mass %, the content of the curing accelerator in resin combination is preferably the 0.01 mass % of mass %~1, The more preferably 0.02 mass % of mass %~0.5, and then more preferably 0.03 mass of mass %~0.1 %.
Fire retardant-
Fire retardant can enumerate the phosphorus compound, nitrogen compound, organosilicon that for example organic phosphorus flame retardant, organic system are nitrogenous Flame retardant, metal hydroxides etc., preferably 10- (2,5- dihydroxy phenyl) -10- hydrogen -9- oxa- -10- phospho hetero phenanthrenes -10- Oxide (such as three light (strain) system " HCA-HQ ").Fire retardant can be used alone a kind, or be two kinds or more.Resin combination The content of fire retardant in layer is not particularly limited, when the non-volatile component in resin combination is set as 100 mass %, preferably For the 0.5 mass % of mass %~10, the more preferably 1 mass % of mass %~5, and then preferably 1.5 mass of mass %~3 %.
< reflow steps >
The manufacturing method of the present invention includes reflow step, in reflow step, using Reflow Soldering with by above-mentioned The substrate upper mounting component of the solidified material layer of thermal cure step manufacture.
It as the component of installation, is not particularly limited, can enumerate such as semiconductor, insertion piece, passive element, this hair Bright manufacturing method can be particularly suitable for the installation of semiconductor.
Heating temperature in reflow step can be according to the type etc. of the component of the type or installation of the slicken solder used Condition and it is different, generally 210 DEG C~330 DEG C, preferably 220 DEG C~300 DEG C, more preferably 230 DEG C~280 DEG C.The present invention Manufacturing method be more particularly suitable when using unleaded slicken solder as slicken solder.
The manufacturing method of the present invention contains above-mentioned thermal cure step and above-mentioned reflow step.
The manufacturing method of component-mounted substrate of the present invention is characterized in that, the heat cure of hot curing resin composition layer The shrinking percentage (S1) in the directions x-y after step compared with the hot curing resin composition layer before thermal cure step, be 0.35% with Under, preferably 0.3% or less, more preferably 0.2% hereinafter, the directions x-y of solidified material layer after reflow step shrinking percentage (S2) compared with the hot curing resin composition layer before thermal cure step, it is 0.4% or less, is preferably 0.3% or less, more preferably For 0.2% hereinafter, and S1 and S2 meet the relationship of S2-S1≤0.08, preferably S2-S1≤0.05, more preferable S2-S1≤0.04.
The measurement of above-mentioned S1 and S2 carries out as follows.
The measurement > of < S1
The measurement of (1-1) initial length
4 jiaos in the rectangular resins of 200mm from hot curing resin composition layer (40 μm of thickness) count 20mm's or so Part forms 4 through holes (by hole to be set as A, B, C, D clockwise using punching.), it is measured with non-contact type Image analyzer Length L (L between the center in each hole formedAB、LBC、LCD、LDA、LAC、LBD) (referring to Fig.1).
The heat cure of (1-2) hot curing resin composition layer
The hot curing resin composition layer heating that length measurment is finished, carries out heat cure.
The measurement of (1-3) heat cure shrinking percentage
After heat cure, for thermoplastic resin composition's layer after solidification, non-contact type Image analyzer is used in the same manner as L Measure the length L'(L' after the solidification between the center in each hole formed in (1-1)AB、L'BC、L'CD、L'DA、L'AC、L'BD),
Calculate s1AB=(LAB-L'AB)/LAB
Similarly, for LBCAnd L'BC、LCDAnd L'CD、LDAAnd L'DA、LACAnd L'AC、LBDAnd L'BDCalculate s1BC、s1CD、 s1DA、s1AC、s1DA,
Heat cure shrinking percentage is calculated with following formula,
Heat cure shrinking percentage [the shrinking percentage in the directions x-y:S1](%)
={ (s1AB+ s1BC+ s1CD+ s1DA+ s1AC+ s1DA)/6}×100。
The measurement > of < S2
(1-4) reflow step
The base material for the step of (1-3) will be completed carries out Reflow Soldering.
The measurement of (1-5) Reflow Soldering shrinking percentage
After reflow step, with (1-3) completely in the same manner as, with non-contact type Image analyzer in a manner of identical with L Measure the length L " (L " after the Reflow Soldering between the center in each hole formed in (1-1)AB、L"BC、L"CD、L"DA、L"AC、L"BD),
Calculate s2AB=(LAB-L"AB)/LAB
Similarly, for LBCWith L "BC、LCDWith L "CD、LDAWith L "DA、LACWith L "AC、LBDWith L "BDCalculate s2BC、s2CD、 s2DA、s2AC、s2DA,
Reflow Soldering shrinking percentage is calculated with following formula,
Reflow Soldering shrinking percentage [the shrinking percentage in the directions x-y:S2](%)
={ (s2AB+ s2BC+ s2CD+ s2DA+ s2AC+ s2DA)/6}×100。
Above-mentioned parameter passes through heat being recorded it is preferable to use front, containing epoxy resin, curing agent and inorganic filling material Hardening resin composition and can meet.According to such hot curing resin composition, can obtain suitable for insulating layer Solidfied material, the insulating layer are that the contraction of insulating layer is suppressed, warpage is repressed, is difficult to generate the insulation of the deformation of substrate Layer.The solidfied material of the hot curing resin composition is suitable for the manufacture of component-mounted substrate (especially semiconductor mounting substrate), It is particularly suitable to form the insulating layer of substrate.The thickness of one solidified material layer (insulating layer) is usually 3~200 μm or so, in multilayer When change, the thickness of insulating layer entirety can also be thicker than this, usually 10~300 μm or so.
< hot curing resin compositions >
The embodiment of the present invention is to provide the hot curing resin composition for being used to form insulating layer.
For above-mentioned hot curing resin composition, with according to the thermal reflow profile of IPC/JEDEC J-STD-020C Figure the solidfied material of the hot curing resin composition is heated after the directions x-y shrinking percentage (S2) for 0.4% hereinafter, institute The solidfied material for stating the hot curing resin composition is that the shrinking percentage (S1) in the directions x-y after heat cure is 0.35% below Under the conditions of carried out the solidfied material of heat cure, and S1 and S2 meet the relationship of S2-S1≤0.08.
Heat cure has been carried out under the conditions of as long as being 0.35% below by the shrinking percentage (S1) in the directions x-y after heat cure The hot curing resin composition solidfied material, to be added according to the thermal reflow profile figure of IPC/JEDEC J-STD-020C The shrinking percentage (S2) in the directions x-y after heat be 0.4% hereinafter, and S1 and S2 meet the relationship of S2-S1≤0.08, then the thermoplasticity After the high temperature that resin combination is installed even across the component for using reflow step, it is also difficult to generate the warpage of substrate, fit Together in the insulating layer for forming slim component-mounted substrate.
The suitable example for the raw material that can be used in thermoplastic resin composition is as described above.
For the assay method of S1 and S2, as described above.
The thermal reflow profile figure described in IPC/JEDEC J-STD-020C is referred in Fig. 2 and table 1~3.For It time, can be any condition of the range described in table, for example, if being Sn-Pb eutectic solders, then can enumerate ts= 90 seconds, tLCondition as=105 seconds, tp=20 seconds can then enumerate ts=120 seconds, t if it is no Pb slicken soldersL=105 Condition as second, tp=30 seconds.In addition component mentioned here in the present invention, is equivalent to and carries out component peace using Reflow Soldering Substrate before dress.As component thickness, if it is Sn-Pb eutectic solders, then preferably smaller than 2.5mm, if it is no Pb soft solderings Material, then preferably smaller than 2.5mm, most preferably less than 2.5mm~1.6mm, and then most preferably less than 1.6mm.
Table 1
Reflow Soldering peak temperature when 2 SnPb eutectics of table
Reflow Soldering peak temperature when table 3 is without Pb
Above-mentioned hot curing resin composition can be suitable as being used to form the tree of the insulating layer of multilayer printed circuit board Oil/fat composition (resin compositions for insulating layer on internal substrate) uses.By using above-mentioned hot curing resin composition The insulating layer for forming multilayer printed circuit board, can inhibit the contraction of insulating layer, can realize the exhausted of the deformation for being difficult to generate substrate Edge layer, the problem of warpage of substrate can be significantly improved.It, can in the manufacture for the multilayer printed circuit board that stack manner is utilized To be suitable as being used to form the resin combination (the stacking resin compositions for insulating layer of multilayer printed circuit board) of insulating layer It uses, being suitable as being used to form the resin combination of insulating layer in turn, (multilayer that conductor layer is formed using plating is printed The stacking resin compositions for insulating layer of brush wiring board) it uses, the insulating layer is to utilize plating to form conductor layer on it Layer.In addition, above-mentioned hot curing resin composition also may be used in the case where multilayer printed circuit board is component built-in circuit plate With it is preferable to use.I.e. resin combination of the invention can be suitable as the resin of the component for embedding component built-in circuit plate Composition (component resin composition for sealing) uses.For the core substrate used in the manufacture of component built-in circuit plate, tool It is useful for the cavity of inside components, and the requirement of the miniaturization due to component built-in circuit plate itself, and has cavity density change High tendency, due to core substrate rigidity insufficient warpage the problem of have the tendency that becoming even more serious, but by using upper Hot curing resin composition is stated as component resin composition for sealing, even if using the high and thin core substrate of cavity density When, the problem of can also significantly alleviating warpage.
< prepregs >
Above-mentioned hot curing resin composition can be impregnated into sheet-like fiber base material and become prepreg.Prepreg is to make Substance made of above-mentioned hot curing resin composition is impregnated into sheet-like fiber base material.
The sheet-like fiber base material used in prepreg is not particularly limited, and can use glass cloth, aromatic polyamides nonwoven Cloth, liquid crystal polymer non-woven fabrics etc. are used as the common substance of prepreg base material.It is being used to form the exhausted of multilayer printed circuit board When edge layer, can be suitble to using thickness be 50 μm of slim sheet-like fiber base materials below, in particular it is preferred to thickness be 10 μm~ 40 μm of sheet-like fiber base material, the sheet-like fiber base material that more preferable thickness is 10 μm~30 μm, and then preferred thickness are 10~20 μ The sheet-like fiber base material of m.As the concrete example of the glass cloth base material as sheet-like fiber base material, rising sun シ ュ エ ー ベ can be enumerated " ス タ イ Le 1027MS " (75/25mm of warp count, 75/25mm of weft count, cloth weight 20g/m of Le (strain) system2、 19 μm of thickness), rising sun シ ュ エ ー ベ Le (strain) system " ス タ イ Le 1037MS " (70/25mm of warp count, weft count 73 Root/25mm, cloth weight 24g/m2, 28 μm of thickness), (strain) You swamp makes made " 1078 " (54/25mm of warp count, latitude 54/25mm of yarn density, cloth weight 48g/m2, 43 μm of thickness), (strain) You swamp makes made " 1037NS " (warp count 72 Root/25mm, 69/25mm of weft count, cloth weight 23g/m2, 21 μm of thickness), (strain) You swamp makes made " 1027NS " (75/25mm of warp count, 75/25mm of weft count, cloth weight 19.5g/m2, 16 μm of thickness), (strain) You swamp make institute " 1015NS " (95/25mm of warp count, 95/25mm of weft count, cloth weight 17.5g/m of system2, 15 μm of thickness), (strain) You swamp makes made " 1000NS " (85/25mm of warp count, 85/25mm of weft count, cloth weight 11g/m2、 10 μm of thickness) etc..Additionally as the concrete example of liquid crystal polymer non-woven fabrics, (strain) Network ラ レ, fragrant adoption can be enumerated " ベ Network Le ス " (6~15g/m of weight per unit area that meltblown is utilized of ester non-woven fabrics2), " ベ Network ト ラ Application " etc..
Prepreg can utilize method well known to hot melt, solvent method etc. to manufacture.
In the embodiment of the present invention, preferably component-mounted substrate, wherein hot curing resin composition layer is On internal substrate upper layer, pressure zone has the prepreg of carrier and the layer that is formed, and the prepreg with carrier is formed on a carrier film There is prepreg made of above-mentioned hot curing resin composition is impregnated into fiber base material.
< has used the multilayer printed circuit board > of prepreg
Then, an example for using the method for the prepreg manufactured as described above manufacture multilayer printed circuit board is said It is bright.It is overlapped 1 in circuit board or is overlapped multiple prepregs of the invention as needed and is pressed from both sides with metallic plate via mold release film It holds, vacuum pressed lamination is carried out under pressurization, heating condition.Pressurization, heating condition are preferably 5~40kgf/cm in pressure2 (49×104~392 × 104N/m2), temperature be 120~200 DEG C in the case of carry out 20~100 minutes.In addition also can with it is bonding Film similarly, after being laminated prepreg in circuit board using vacuum layer platen press, is heating and curing.Then, with it is above-mentioned The method of record similarly, after cured prepreg surface roughening, forms conductor layer using plating and can manufacture multilayer Printed wiring board.
< adhering films >
Adhering film can be formed using above-mentioned hot curing resin composition.
In one embodiment, the resin combination that adhering film of the invention contains supporter and engaged with the supporter Nitride layer, resin composition layer include above-mentioned hot curing resin composition.
Adhering film can for example be formed as got off:Above-mentioned heat-curing resin combination has been dissolved in preparation in organic solvent The resin varnish is coated on supporter by the resin varnish of object using chill coating machine etc., and resin varnish drying is made to carry out shape At.
Organic solvent can enumerate ketone, second such as acetone, methyl ethyl ketone (hereinafter also referred to " MEK ") and cyclohexanone It is the acetate esters such as acetoacetic ester, butyl acetate, cellosolve acetate, propylene glycol monomethyl ether and carbitol acetate, molten Aromatic hydrocarbon, dimethylformamide, the dimethylacetylamides such as the carbitols such as fine agent and butyl carbitol class, toluene and dimethylbenzene With the acid amides series solvents such as N-Methyl pyrrolidone etc..Organic solvent can be used alone, or be two kinds or more.
The drying of resin varnish can be brushed etc. using heating, hot wind well known to drying means implement.It is clear according to resin The boiling point of organic solvent in paint and it is different such as clear using the resin of the organic solvent containing 30 mass of mass %~60 % When paint, by the way that in 50 DEG C~150 DEG C dryings 3 minutes~10 minutes, adhering film can be formed.
As the supporter used in the formation of adhering film, the film being molded of plastic material, metal foil can be enumerated (copper foil, aluminium foil etc.), processing release paper are suitble to using the film being molded of plastic material.As plastic material, such as poly- pair can be enumerated Polyethylene terephthalate (hereinafter sometimes referred to simply as " PET "), polyethylene naphthalate (hereinafter sometimes referred to simply as " PEN ") etc. are poly- The acrylic acid series such as ester, makrolon (hereinafter sometimes referred to simply as " PC "), polymethyl methacrylate (PMMA), cyclic polyolefin, Tri acetyl cellulose (TAC), polyether sulfides (PES), polyether-ketone, polyimides etc..Wherein, preferred poly terephthalic acid second Diester, polyethylene naphthalate, particularly preferably cheap polyethylene terephthalate.In a suitable embodiment party In formula, supporter is polyethylene terephthalate film.
It can implement delustring processing, sided corona treatment to the face of supporter engaged with resin composition layer.
In addition, as supporter, the carrying with release layer on the face engaged with resin composition layer can be used to take off The supporter of mold layer.As the releasing agent used in the release layer of the supporter with release layer, can enumerate for example selected from The releasing agent of one or more of alkyd resin, vistanex, polyurethane resin and organic siliconresin.
In the present invention, the supporter for carrying release layer can use commercially available product.As commercially available product, it can enumerate and for example have Have using alkyd resin system releasing agent as the PET film of the release layer of principal component, i.e. リ Application テ ッ Network (strain) system " SK-1 ", " AL-5 ", " AL-7 " etc..
The thickness of supporter is not particularly limited, preferably 5 μm~75 μm, more preferably 10 μm~60 μm.It should be noted that When supporter is the supporter with release layer, the thickness of the supporter entirety of release layer is preferably carried within the above range.
In the adhering film manufactured as described above using above-mentioned hot curing resin composition, the thickness of resin composition layer Degree is not particularly limited, and from the point of view of the slimming of multilayer printed circuit board, preferably 100 μm hereinafter, more preferably 80 μ M hereinafter, in turn be preferably 60 μm hereinafter, in turn be more preferably 50 μm or less.The lower limit of the thickness of resin composition layer is usually 15 μm or more.
In the adhering film manufactured as described above using above-mentioned hot curing resin composition, in resin composition layer On the face (that is, face with supporter opposite side) not engaged with supporter, can and then the protective film being consistent with supporter be folded Layer.The thickness of protective film is not particularly limited, for example, 1 μm~40 μm.By the way that protective film is laminated, can prevent dust etc. to The attachment on the surface of resin composition layer prevents scar.Adhering film can be rolled into a roll to preserve, in multilayered printed circuit When forming insulating layer in the manufacture of plate, it can be used by removing protective film.
In the embodiment of the present invention, preferably component-mounted substrate, wherein hot curing resin composition layer is logical It crosses and the adhering film for foring the thick composition layer of heat-curing resin on a carrier film is pressed on internal substrate upper layer and is formed.
< has used the multilayer printed circuit board > of adhering film
For use the adhering film that manufactures as described so manufacture multilayer printed circuit board method an example into Row explanation.
First, adhering film is laminated to the one or both sides of circuit board using vacuum laminator.As in circuit base The substrate used in plate can enumerate such as glass epoxy substrate, metal substrate, polyester substrate, polyimide substrate, BT resins Substrate, thermohardening type polyphenylene oxide substrate etc..It should be explained that, wherein circuit board refer to above-mentioned such substrate one side or The substance for the conductor layer (circuit) for having carried out pattern processing is formed on two sides.In addition, folded for replacing conductor layer with insulating layer Multilayer printed circuit board made of layer, the outermost one or both sides for being formed as the multilayer printed circuit board have carried out pattern and have added The substance of the conductor layer (circuit) of work is also contained in circuit board described here.It should be noted that can by Darkening process, Copper etching etc. implements roughening treatment in advance in conductor layer surface.
In above-mentioned lamination, when adhering film has protective film, after removing the protective film, as needed by adhering film and Circuit board preheats, and adhering film is crimped on while being pressurizeed and being heated in circuit board.For the viscous of the present invention Film is connect, it is preferable to use being laminated to the method in circuit board under reduced pressure using vacuum layer platen press.The condition of lamination is without spy It does not limit, such as crimping temperature (laminating temperature) is preferably made to be preferably 70~140 DEG C, crimping pressure is made to be preferably 1~11kgf/ cm2(9.8×104~107.9 × 104N/m2), it is laminated in the case where air pressure is 20mmHg (26.7hPa) decompression below.Separately Outside, the method for lamination can be intermittent, can also be the continous way that roller is utilized.Vacuum lamination can use commercially available vacuum Laminating machine carries out.As commercially available vacuum laminator, such as ニ チ ゴ ー モ ー ト Application (strain) バ キ ュ ー system processed can be enumerated ア ッ プ リ ケ ー タ ー, (strain) name mechanism make made vacuum pressure type laminating machine, (strain) Hitachi イ Application ダ ス ト リ イ ズ roll-types Dry type coating machine, Hitachi エ ー ア イ ー シ ー (strain) vacuum laminator processed etc..
In addition, under reduced pressure, the laminating step that is heated and pressurizeed can also be carried out using general vacuum hotpressing machine. Such as it can be carried out by the way that the metallic plates such as warmed-up SUS plates pressurize from support body layer side.Pressurized conditions are to make vacuum degree Usually 1 × 10-2MPa or less, preferably 1 × 10-3Under MPa decompressions below.Being heated and pressurizeed also can be within a stage It carries out, but from the point of view of the exudation of control resin, it is more than the stage to be preferably divided into two for condition to carry out.For example, excellent Choosing is by the pressurization in the 1st stage temperature is 70~150 DEG C, pressure is 1~15kgf/cm2Range under conditions of carry out, by the 2nd The pressurization in stage is temperature is 150~200 DEG C, pressure is 1~40kgf/cm2Range under conditions of carry out.Each stage when Between preferably carry out 30~120 minutes.As commercially available vacuum hotpressing machine, such as MNPC-V-750-5-200 ((strain) can be enumerated Name mechanism is made made), VH1-1603 (Beichuan essence machine (strain) system) etc..
Hot curing resin composition layer preferably will form the thick composition layer of heat-curing resin on a carrier film The layer that adhering film is formed in internal substrate upper layer pressure.After adhering film is laminated in circuit board, it is cooled to room temperature attached It after close, is removed in the case where removing supporter, heat cure is carried out, it is possible thereby to form insulating layer in circuit board.Thermosetting The condition of change is suitably selected according to type, content of the resin component in resin combination etc., preferably select 150 DEG C~ 220 DEG C, 20 minutes~180 minutes, more preferably 160 DEG C~210 DEG C of selection, 30~120 minutes ranges.
After forming the insulating layer, it in the case of not removing supporter before curing, is removed herein.Then, according to need Trepanning is carried out to the insulating layer being formed in circuit board, form through-hole, open-work.Trepanning for example can by drill bit, laser, Method well known to plasma etc. or as needed combine these methods carries out, using carbon dioxide gas laser, The trepanning of the lasers such as YAG laser is most conventional methods.
Then, conductor layer is formed on the insulating layer using dry type plating or wet type plating.Dry type plating can use vapor deposition, Method well known to sputtering, ion plating etc..It is the case where for wet type plating, molten by carrying out surface of insulating layer successively to be utilized The swelling treatment of swollen liquid, the roughening treatment that oxidant is utilized and the neutralisation treatment that neutralizer is utilized, form the anchor of convex-concave (anchor).The swelling treatment of swelling solution is utilized by making insulating layer be impregnated 5~20 minutes at 50~80 DEG C, in swelling solution Come carry out.As swelling solution, aqueous slkali, surfactant solution etc., preferably aqueous slkali can be enumerated, as the aqueous slkali, It can enumerate such as sodium hydroxide solution, potassium hydroxide solution.As commercially available swelling solution, such as ア ト テ ッ Network can be enumerated ス ウ ェ リ Application グ デ ィ ッ プ セ キ ュ リ ガ Application ス P (the Swelling Dip Securiganth of ジ ャ パ Application (strain) system P), ス ウ ェ リ Application グ デ ィ ッ プ セ キ ュ リ ガ Application ス SBU (Swelling Dip Securiganth SBU) etc..It is utilized The roughening treatment of oxidant by make insulating layer impregnate at 60 DEG C~80 DEG C, in oxidizing agent solution 10 minutes~30 minutes come It carries out.As oxidant, the alkali that potassium permanganate or sodium permanganate have for example been dissolved in the aqueous solution of sodium hydroxide can be enumerated Property permanganic acid solution, bichromate, ozone, hydrogen peroxide/sulfuric acid, nitric acid etc..In addition, the permanganic acid in alkaline permanganic acid solution The concentration of salt is preferably 5~10 weight %.As commercially available oxidant, such as ア ト テ ッ Network ジ ャ パ Application (strain) system can be enumerated The alkalinity Gao Meng such as U Application セ Application ト レ ー ト U Application パ Network ト CP, De ー ジ Application グ ソ リ ュ ー シ ョ Application セ キ ュ リ ガ Application ス P Acid solution.The neutralisation treatment that neutralizer is utilized is carried out by impregnating 3~10 minutes at 30~50 DEG C, in neutralizer.Make For neutralizer, preferably acid aqueous solution the リ ダ Network of ア ト テ ッ Network ジ ャ パ Application (strain) system can be enumerated as commercially available product ションソリューシン・セキュリガントP。
Then, electroless coating and plating compositions are formed into conductor layer.Alternatively, it is also possible to formed with conductor layer be opposite pattern Resist pattern, merely with electroless coating formed conductor layer.As the method that pattern later is formed, such as ability can be used Subtract each other (subtractive) method, semi-additive process etc. well known to field technique personnel.
By using multilayer printed circuit board, it can manufacture and be mounted with the components such as semiconductor chip, insertion piece, passive element Substrate, the multilayer printed circuit board manufactured using above-mentioned hot curing resin composition.
An example of the manufacturing method of semiconductor mounting substrate is shown.
< semiconductor mounting substrates >
By the conducting position installation half for stating the multilayer printed circuit board of hot curing resin composition manufacture in use Conductor chip can manufacture semiconductor mounting substrate." conducting position " refers to " electric signal in conduction multilayer printed circuit board Position ", position can be any one of surface or the position of landfill.In addition, as long as semiconductor chip is using semiconductor as material The circuit element of material, is not particularly limited.
As long as the installation method of semiconductor chip when manufacturing above-mentioned semiconductor mounting substrate makes semiconductor chip effectively It functions, is not particularly limited, specifically, wire bonding installation method, flip-chip installation method, profit can be enumerated With the installation method of bumpless build up layer (バ Le プ な ビ Le De ア ッ プ Layer, BBUL), utilize anisotropic conductive film (ACF) installation method utilizes the installation method etc. of non-conductive film (NCF).
Embodiment
Hereinafter, the present invention is further illustrated based on embodiment and comparative example, but the present invention is not limited to embodiments below. It should be noted that " part " in following record refers to " mass parts ".
It is illustrated firstly, for the assay method of the evaluation of physical property in this specification, evaluation method.
[measurement of shrinking percentage]
The preparation of the polyimide film of (1-1) with resin
Using intermittent vacuum pressurization laminating machine, (2 stage of (strain) ニ チ go ー モ ー ト Application systems stacks laminating machine CVP700), by the resin sheet (200mm square) made in following making examples so that resin composition layer and polyimide film (mode that the center of the even surface of the emerging production (strain) ユ ー ピ レ ッ Network ス 25S, 25 μ m-thicks, 240mm square) in space portion connects, It is laminated on single side,.Lamination is by making air pressure for after 13hPa or less by carrying out decompression in 30 seconds, in 100 DEG C, pressure 0.74MPa Under the conditions of crimp 30 seconds to implement.
The measurement of (1-2) initial length
For the polyimide film with resin of gained, from the supporter of resin sheet, from the rectangular resins of 200mm 4 jiaos of parts for counting 20mm or so, using punching formed 4 through holes (diameter about 6mm) (by hole be set as clockwise A, B, C, D.), after the supporter of resin sheet is removed, with non-contact type Image analyzer ((strain) ミ Star ト ヨ systems, Quick Vision types Formula:QVH1X606-PRO III_BHU2G) measure formed each hole center between length L (LAB、LBC、LCD、LDA、LAC、LBD) (referring to Fig.1).
The heat cure of (1-3) resin composition layer
The polyimides film surface for surveying the long polyimide film with resin finished is arranged in 255mm × 255mm rulers In very little glass cloth base material epoxy resin double-sided copper-clad laminated board (0.7mm is thick, Matsushita Electrician (strain) makes " R5715ES "), by four While it is fixed with Kapton Tape (width 10mm), it is heated 90 minutes at 150 DEG C, resin composition layer is subjected to heat cure, is obtained To solidified material layer.Similarly, 90 minutes are heated at 190 DEG C, is heated 90 minutes at 200 DEG C, and solidified material layer is respectively obtained.
The measurement of (1-4) heat cure shrinking percentage
After heat cure, Kapton Tape is removed, the polyimide film with solidified material layer is removed from laminated plate, in turn Solidified material layer is removed from polyimide film, is measured in (1-2) with non-contact type Image analyzer in a manner of same as L The length L'(L' after solidification between the center in each hole formedAB、L'BC、L'CD、L'DA、L'AC、L'BD),
Calculate s1AB=(LAB-L'AB)/LAB
Similarly, for LBCAnd L'BC、LCDAnd L'CD、LDAAnd L'DA、LACAnd L'AC、LBDAnd L'BDCalculate s1BC、s1CD、 s1DA、s1AC、s1DA,
Heat cure shrinking percentage is calculated with following formula,
Heat cure shrinking percentage [the shrinking percentage in the directions x-y:S1](%)
={ (s1AB+ s1BC+ s1CD+ s1DA+ s1AC+ s1DA)/6}×100。
(1-5) reflow step
Reflow soldering apparatus (Japanese ア Application ト system (strain) system of the base material for the step of (1-3) will be completed in 260 DEG C of peak temperature " HAS-6116 ", temperature profile are according to IPC/JEDEC J-STD-020C) in by primary.
The measurement of (1-6) Reflow Soldering shrinking percentage
After reflow step, with (1-4) completely in the same manner as, with non-contact type Image analyzer in a manner of identical with L Measure the length L " (L " after the Reflow Soldering between the center in each hole formed in (1-2)AB、L"BC、L"CD、L"DA、L"AC、L"BD),
Calculate s2AB=(LAB-L"AB)/LAB
Similarly, for LBCWith L "BC、LCDWith L "CD、LDAWith L "DA、LACWith L "AC、LBDWith L "BDCalculate s2BC、s2CD、 s2DA、s2AC、s2DA,
Reflow Soldering shrinking percentage is calculated with following formula,
Reflow Soldering shrinking percentage [the shrinking percentage in the directions x-y:S2](%)
={ (s2AB+ s2BC+ s2CD+ s2DA+ s2AC+ s2DA)/6}×100。
[preparation of Reflow Soldering behavior evaluation substrate]
The preparation of (2-1) internal substrate
As internal substrate, preparing glass cloth base material epoxy resin laminate plate, [copper foil etches the ア Application Network ラ ッ De after coming Plate, 0.06mm are thick, Sumitomo ベ ー Network ラ イ ト (strain) make " LaXY-4785TH-B "].
The lamination of (2-2) resin sheet
Using intermittent vacuum pressurization laminating machine, (2 stage of (strain) ニ チ go ー モ ー ト Application systems stacks laminating machine CVP700), in a manner of so that resin composition layer is connected with internal substrate, the resin sheet made in following making examples is laminated to Internal substrate it is two-sided.It is laminated implementation of such as getting off:Decompression 30 seconds, after making air pressure be 13hPa or less, in 100 DEG C, pressure It is set to crimp under conditions of 0.74MPa 30 seconds.Then, hot pressing in 60 seconds is carried out in the condition of 100 DEG C, pressure 0.5MPa.
The heat cure of (2-3) resin composition layer
After removing the supporter of resin sheet from the substrate for be laminated resin sheet, heated 90 minutes at 150 DEG C, by resin Composition layer carries out heat cure, obtains solidified material layer.Similarly, 90 minutes are heated at 190 DEG C, are heated 90 minutes at 200 DEG C, point Solidified material layer is not obtained.
(2-4) Reflow Soldering behavior evaluation
A piece (Ge pieces) of 45mm square is cut into afterwards (n=5), in 260 DEG C of reflow soldering apparatus (Japanese ア Application ト of peak temperature System (strain) makes " HAS-6116 ") in pass through primary (condition is also according to IPC/JEDEC J-STD-020C).Then, it uses Shadow Moire devices (Akrometrix TherMoire AXP), with according to IPC/JEDEC J-STD-020C (peak temperatures 260 DEG C) temperature profile from substrate lower part heat, measure the buckling behavior of the 10mm square part of substrate center.
Even if the difference of the maximum height of the displacement data of gained and minimum height is had 1 sample in whole temperature ranges Product be 40 μm or more of situation be denoted as ×, the case where whole samples are both less than 40 μm, is denoted as zero.
The resin sheet 1,2,3 and 4 used in embodiment and comparative example is according to following sequentially builts.
< makes example 1 (making of resin sheet 1) >
Make bisphenol A type epoxy resin (Mitsubishi Chemical's (strain) makes " 828EL ", epoxide equivalent about 185) 12 while stirring Part, 3 parts of naphthalene type epoxy resin (DIC (strain) makes " P4032SS ", epoxide equivalent about 144), biphenyl type epoxy resin (Mitsubishi Chemical (strain) makes " YX4000HK ", epoxide equivalent about 185) 6 parts, biphenyl type epoxy resin (Japanese chemical drug (strain) system " NC3000H ", ring (Mitsubishi Chemical's (strain) makes the MEK/ rings of " YX6954BH30 ", 30 mass % of solid constituent for about 288) 25 parts of oxygen equivalent, phenoxy resin The solution of hexanone=1/1) 20 parts dissolve by heating in 15 parts of solvent naphtha.After being cooled to room temperature, mixing thereto contains triazine (DIC (strain) systems " LA-7054 ", hydroxyl equivalent 125, the MEK of solid constituent 60% are molten for the linear phenol-aldehyde resin system curing agent of skeleton Liquid) 20 parts, (Nippon Steel's chemistry (strain) system " SN485 ", hydroxyl equivalent 215, the MEK of solid constituent 60% are molten for naphthols system curing agent Liquid) 10 parts, it is 0.4 part of the curing accelerator MEK solution of 5 mass % of solid constituent (4-dimethylaminopyridine (DMAP)), fire-retardant (three light (strain) are made " HCA-HQ ", 10- (2,5- dihydroxy phenyls) -10- hydrogen -9- oxa- -10- phospho hetero phenanthrene -10- oxides, are put down for agent Equal 2 μm of grain size) 3 parts, with amino silicone methane series coupling agent (SHIN-ETSU HANTOTAI's chemical industry (strain) makes " KBM573 ") carried out surface treatment (0.25 μm of average grain diameter, (strain) ア De マ テ ッ Network ス systems " SOC1 ", the carbon amounts of per unit surface area are preparing spherical SiO 2 0.36mg/m2) 40 parts, with amino silicone methane series coupling agent (SHIN-ETSU HANTOTAI's chemical industry (strain) makes " KBM573 ") carried out surface treatment (0.2 μm of average grain diameter, Asahi Glass (strain) system " AZ fillers ", the carbon amounts of per unit surface area are 0.38mg/ to spherical glass filler m2) 10 parts, it is uniformly dispersed with high speed rotation mixer, prepares resin varnish 1.
Then, in the de- of the PET film (リ Application テ ッ Network (strain) makes " AL5 ", 38 μm of thickness) with alkyd resin system release layer Mold layer side is equably coated with resin varnish 1, so that the thickness of the resin composition layer after dry is 40 μm, it is (flat at 80~120 DEG C Equal 100 DEG C) it is 5 minutes dry, make resin sheet 1.
< makes example 2 (making of resin sheet 2) >
Make bisphenol-type epoxy resin (Nippon Steel's chemistry (strain) system " ZX1059 ", bisphenol A-type and Bisphenol F while stirring (Mitsubishi Chemical's (strain) makes " YX4000HK ", epoxy to about 169) 5 parts of 1: 1 melange, epoxide equivalent, the biphenyl type epoxy resin of type About 185) 12 parts of equivalent, 9 parts of dicyclopentadiene-type epoxy resin (DIC (strain) makes " HP-7200H ", epoxide equivalent about 275), benzene 16 parts of oxygen resin (Mitsubishi Chemical's (strain) makes MEK/ cyclohexanone=1/1 solution of " YL7553BH30 ", 30 mass % of solid constituent) plus Heat of solution is in 30 parts of solvent naphtha.After being cooled to room temperature, (DIC (strain) makes mixed active ester system curing agent thereto The toluene solution of " HPC8000-65T ", active group equivalent about 223, non-volatile point of 65 mass %) 40 parts, curing accelerator (4- bis- The MEK solution of dimethylaminopyridine, 5 mass % of solid constituent) 3 parts, with amino silicone methane series coupling agent (SHIN-ETSU HANTOTAI's chemical industry (strain) System " KBM573 ") preparing spherical SiO 2 (0.5 μm of average grain diameter, (strain) ア De マ テ ッ Network ス systems that are surface-treated The carbon amounts 0.39mg/m of " SOC2 ", per unit surface area2) 100 parts, with amino silicone methane series coupling agent (SHIN-ETSU HANTOTAI's chemical industry (strain) System " KBM573 ") be surface-treated spherical glass filler (0.2 μm of average grain diameter, Asahi Glass (strain) system " AZ fillers ", often The carbon amounts 0.38mg/m of per surface area2) 40 parts, it is uniformly dispersing with high speed rotation mixer, prepare resin varnish 2.
Then, using resin varnish 2, resin sheet 2 is made with process same as example 1 is made.
< makes example 3 (making of resin sheet 3) >
Make 6 parts of naphthalene type epoxy resin (DIC (strain) makes " HP4032SS ", epoxide equivalent about 144), biphenyl while stirring 6 parts of type resin (Mitsubishi Chemical's (strain) makes " YX4000HK ", epoxide equivalent about 185), biphenyl type epoxy resin (Japanese chemical drug (strain) Make " NC3000H ", about 288) 20 parts of epoxide equivalent, phenoxy resin (Mitsubishi Chemical's (strain) system " YL7553BH30 ", solid constituent 30 The MEK solution of quality %) 8 parts dissolve by heating in 15 parts of solvent naphtha.After being cooled to room temperature, bisphenol-A dicyan is mixed thereto (ロ Application ザ ジ ャ パ Application (strain) makes " BA230S75 ", cyanate equivalent about 232, non-volatile point of 75 mass % to the prepolymer of acid esters MEK solution) 20 parts, (ロ Application ザ ジ ャ パ Application (strain) makes " PT30S ", cyanic acid to novalac-type multifunctional cyanate ester resin The MEK solution of ester equivalent about 133, non-volatile point of 85 mass %) 8 parts, (DIC (strain) makes " HPC8000- to active ester system curing agent 65T ", active group equivalent about 223 non-volatile point of 65 mass % toluene solution) 8 parts, curing accelerator (4- dimethylamino pyrroles Pyridine, 5 mass % of solid constituent MEK solution) 0.4 part, (Tokyo is melted into (strain) system, acetylacetone cobalt (III), consolidates curing accelerator The MEK solution of 1 mass % of body ingredient) 3 parts, (three light (strain) make " HCA-HQ ", 10- (2,5- dihydroxy phenyls) -10- to fire retardant Hydrogen -9- oxa- -10- phospho hetero phenanthrene -10- oxides, 2 μm of average grain diameter) 3 parts, with amino silicone methane series coupling agent (SHIN-ETSU HANTOTAI's chemical industry (strain) makes " KBM573 ") preparing spherical SiO 2 (0.5 μm of average grain diameter, (strain) ア De マ テ ッ Network ス systems that are surface-treated The carbon amounts 0.39mg/m of " SOC2 ", per unit surface area2) 50 parts, with amino silicone methane series coupling agent, (SHIN-ETSU HANTOTAI's chemical industry (strain) is made " KBM573 ") be surface-treated spherical glass filler (0.2 μm of average grain diameter, Asahi Glass (strain) system " AZ fillers ", per single The carbon amounts 0.38mg/m of bit surface area2) 50 parts, it is uniformly dispersing with high speed rotation mixer, prepare resin varnish 3.
Then, using resin varnish 3, resin sheet 3 is made with process same as example 1 is made.
< makes example 4 (making of resin sheet 4) >
Make bisphenol A type epoxy resin (Mitsubishi Chemical's (strain) makes " 828EL ", epoxide equivalent about 185) 12 while stirring Part, 3 parts of naphthalene type epoxy resin (DIC (strain) makes " HP4032SS ", epoxide equivalent about 144), biphenyl type epoxy resin (Mitsubishi Chemical (strain) makes " YX4000HK ", epoxide equivalent about 185) 6 parts, biphenyl type epoxy resin (Japanese chemical drug (strain) system " NC3000H ", ring (Mitsubishi Chemical's (strain) makes the MEK/ rings of " YX6954BH30 ", 30 mass % of solid constituent for about 288) 25 parts of oxygen equivalent, phenoxy resin The solution of hexanone=1/1) 20 parts dissolve by heating in 10 parts of solvent naphtha.After being cooled to room temperature, mixing thereto contains triazine (DIC (strain) systems " LA-7054 ", hydroxyl equivalent 125, the MEK of solid constituent 60% are molten for the linear phenol-aldehyde resin system curing agent of skeleton Liquid) 20 parts, (Nippon Steel's chemistry (strain) system " SN485 ", hydroxyl equivalent 215, the MEK of solid constituent 60% are molten for naphthols system curing agent Liquid) 10 parts, it is 0.4 part of the curing accelerator MEK solution of 5 mass % of solid constituent (4-dimethylaminopyridine (DMAP)), fire-retardant (three light (strain) are made " HCA-HQ ", 10- (2,5- dihydroxy phenyls) -10- hydrogen -9- oxa- -10- phospho hetero phenanthrene -10- oxides, are put down for agent Equal 2 μm of grain size) 3 parts, with amino silicone methane series coupling agent (SHIN-ETSU HANTOTAI's chemical industry (strain) makes " KBM573 ") carried out surface treatment Preparing spherical SiO 2 (0.25 μm of average grain diameter, (strain) ア De マ テ ッ Network ス systems " SOC1 ", the carbon amounts of per unit surface area 0.36mg/m2) 40 parts, it is uniformly dispersing with high speed rotation mixer, prepare resin varnish 4.
Then, using resin varnish 4, resin sheet 4 is made using process same as example 1 is made.
< makes example 5 (making of resin sheet 5) >
Make 6 parts of naphthalene type epoxy resin (DIC (strain) makes " HP4032SS ", epoxide equivalent about 144), biphenyl while stirring 6 parts of type resin (Mitsubishi Chemical's (strain) makes " YX4000HK ", epoxide equivalent about 185), biphenyl type epoxy resin (Japanese chemical drug (strain) Make " NC3000H ", about 288) 20 parts of epoxide equivalent, phenoxy resin (Mitsubishi Chemical's (strain) system " YL7553BH30 ", solid constituent 30 The MEK solution of quality %) 16 parts dissolve by heating in 5 parts of solvent naphtha.After being cooled to room temperature, bisphenol-A dicyan is mixed thereto (ロ Application ザ ジ ャ パ Application (strain) makes " BA230S75 ", cyanate equivalent about 232, non-volatile point of 75 mass % to the prepolymer of acid esters MEK solution) 20 parts, (ロ Application ザ ジ ャ パ Application (strain) makes " PT30S ", cyanic acid to novalac-type multifunctional cyanate ester resin The MEK solution of ester equivalent about 133, non-volatile point of 85 mass %) 8 parts, (DIC (strain) makes " HPC8000- to active ester system curing agent 65T ", active group equivalent about 223 non-volatile point of 65 mass % toluene solution) 8 parts, curing accelerator (4- dimethylamino pyrroles Pyridine, 5 mass % of solid constituent MEK solution) 0.4 part, (Tokyo is melted into (strain) system, acetylacetone cobalt (III), consolidates curing accelerator The MEK solution of 1 mass % of body ingredient) 3 parts, (three light (strain) make " HCA-HQ ", 10- (2,5- dihydroxy phenyls) -10- to fire retardant Hydrogen -9- oxa- -10- phospho hetero phenanthrene -10- oxides, 2 μm of average grain diameter) 3 parts, with amino silicone methane series coupling agent (SHIN-ETSU HANTOTAI's chemical industry (strain) makes " KBM573 ") preparing spherical SiO 2 (0.25 μm of average grain diameter, (strain) ア De マ テ ッ Network ス that are surface-treated Make the carbon amounts 0.36mg/m of " SOC1 ", per unit surface area2) 40 parts, it is uniformly dispersing with high speed rotation mixer, prepare resin Varnish 5.
Then, using resin varnish 5, resin sheet 5 is made using process same as example 1 is made.
The composition of the resin composition layer of resin sheet 1 to 5 is shown in table 4.
Table 4
The result of evaluation is shown in table 5.
Table 5
As shown in Table 5, it is 190 DEG C of (test examples in the temperature of thermal cure step even if equally using resin sheet 1 × 90 minute 1) in the case of, can be met present invention provide that composition, in contrast, 150 DEG C (test examples 5) × In the case of 90 minutes, cannot be met present invention provide that composition.In addition, even if equally using resin sheet 2, equally exist In the case that the temperature of thermal cure step is 200 DEG C of (test example 2) × 90 minute, can be met present invention provide that combination Object, in contrast, in the case of 150 DEG C of (test example 6) × 90 minute, cannot be met present invention provide that composition.
Resin sheet 1 has similar composition with resin sheet 4, but although thermal cure step is the same terms, test example 1AZ is filled out The defined composition that material can obtain meeting the present invention cannot obtain meeting this hair in contrast, in the case of test example 4 Bright defined composition.
Resin sheet 3 has similar composition with resin sheet 5, although thermal cure step is the same terms, (the experiment of resin sheet 3 Example 3) the defined composition that can obtain meeting the present invention cannot obtain in contrast, the case where for resin sheet 5 (test example 7) To the defined composition for meeting the present invention.In addition, the case where for resin sheet 5, even if changing the temperature of thermal cure step It cannot obtain the defined composition (test example 8) for meeting the present invention.

Claims (36)

1. the manufacturing method of component-mounted substrate, which is characterized in that including:
The hot curing resin composition layer formed on internal substrate is heating and curing to and is formed the heat cure step of solidified material layer Suddenly and
Using Reflow Soldering the substrate upper mounting component with solidified material layer reflow step,
Above-mentioned hot curing resin composition layer is formed by hot curing resin composition, or utilizes being thermally cured property resin group Prepreg made of object is infiltrated in fiber base material is closed to be formed,
For above-mentioned hot curing resin composition, to be incited somebody to action according to the thermal reflow profile figure of IPC/JEDEC J-STD-020C The solidfied material of the hot curing resin composition heated after the directions x-y shrinking percentage (S2) be 0.4% hereinafter, it is described should The solidfied material of hot curing resin composition is that the shrinking percentage (S1) in the directions x-y after heat cure is 0.35% condition below The lower solidfied material for carrying out heat cure, and S1 and S2 meet the relationship of S2-S1≤0.08.
2. according to the method described in claim 1, wherein, S1 is 0.3% or less.
3. according to the method described in claim 1, wherein, S1 is 0.2% or less.
4. according to the method described in claim 1, wherein, S2 is 0.3% or less.
5. according to the method described in claim 1, wherein, S2 is 0.2% or less.
6. according to the method described in claim 1, wherein, S1 and S2 meet the relationship of S2-S1≤0.05.
7. according to the method described in claim 1, wherein, S1 and S2 meet the relationship of S2-S1≤0.04.
8. according to the method described in claim 1, wherein, hot curing resin composition contains epoxy resin, curing agent and nothing Machine packing material.
9. according to the method described in claim 8, wherein, containing silica as inorganic filling material.
10. according to the method described in claim 8, wherein, containing the silica doped with titanium as inorganic filling material.
11. according to the method described in claim 8, wherein, the involatile constituent in being thermally cured property resin combination is set as When 100 mass %, the content of the inorganic filling material in hot curing resin composition is 40 mass % or more.
12. according to the method described in claim 1, wherein, the heating temperature in thermal cure step is 120 DEG C~240 DEG C.
13. according to the method described in claim 1, wherein, the peak temperature in reflow step is 210 DEG C~330 DEG C.
14. according to the method described in claim 1, wherein, hot curing resin composition layer is formed using above-mentioned prepreg.
15. according to the method described in claim 1, wherein, hot curing resin composition layer is in internal substrate upper layer pressure viscosity The layer for connecing film and being formed, the adhering film are the films for being formed with the thick composition layer of heat-curing resin on a carrier film.
16. according to the method described in claim 1, wherein, hot curing resin composition layer is in internal substrate upper layer pressure zone The layer for having the prepreg of carrier and being formed, the prepreg with carrier are formed with being thermally cured property resin group on a carrier film Close prepreg made of object is impregnated into fiber base material.
17. according to the method described in claim 1, wherein, the thickness of solidified material layer is 3~200 μm.
18. according to the method described in claim 1, wherein, component is semiconductor chip, insertion piece or passive element.
19. according to the method for claim 18, wherein component is semiconductor chip.
20. hot curing resin composition is used to form insulating layer, which is characterized in that with according to IPC/JEDEC J-STD- The thermal reflow profile figure of 020C the solidfied material of the hot curing resin composition is heated after the directions x-y contraction Rate(S2)For 0.4% hereinafter, the solidfied material of the hot curing resin composition is the contraction in the directions x-y after heat cure Rate(S1)The solidfied material of heat cure is carried out under the conditions of below for 0.35%, and S1 and S2 meet the relationship of S2-S1≤0.08.
21. hot curing resin composition according to claim 20, wherein S1 is 0.3% or less.
22. hot curing resin composition according to claim 20, wherein S1 is 0.2% or less.
23. hot curing resin composition according to claim 20, wherein S2 is 0.3% or less.
24. hot curing resin composition according to claim 20, wherein S2 is 0.2% or less.
25. hot curing resin composition according to claim 20, wherein S1 and S2 meets the pass of S2-S1≤0.05 System.
26. hot curing resin composition according to claim 20, wherein S1 and S2 meets the pass of S2-S1≤0.04 System.
27. hot curing resin composition according to claim 20, wherein the peak temperature of Reflow Soldering is 260 DEG C.
28. hot curing resin composition according to claim 27, wherein hot curing resin composition contains epoxy Resin, curing agent and inorganic filling material.
29. hot curing resin composition according to claim 28, wherein contain titanium dioxide as inorganic filling material Silicon.
30. hot curing resin composition according to claim 28, wherein as inorganic filling material contain doped with The silica of titanium.
31. hot curing resin composition according to claim 28, wherein non-in being thermally cured property resin combination When volatile ingredient is set as 100 mass %, the content of the inorganic filling material in hot curing resin composition be 40 mass % with On.
32. prepreg, by the way that the hot curing resin composition described in any one of claim 27~31 is impregnated into fibre It is formed in Wiki material.
33. multilayer printed circuit board, wherein utilize the hot curing resin composition described in any one of claim 27~31 Solidfied material and form insulating layer.
34. component-mounted substrate, wherein utilize the hot curing resin composition described in any one of claim 27~31 Solidfied material and form insulating layer.
35. component-mounted substrate according to claim 34, wherein component is semiconductor chip, insertion piece or passive member Part.
36. component-mounted substrate according to claim 35, wherein component is semiconductor chip.
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