CN106019828A - First liquid and second liquid of two-liquid mixing type and method for manufacturing printed wiring board - Google Patents

First liquid and second liquid of two-liquid mixing type and method for manufacturing printed wiring board Download PDF

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Publication number
CN106019828A
CN106019828A CN201610169087.4A CN201610169087A CN106019828A CN 106019828 A CN106019828 A CN 106019828A CN 201610169087 A CN201610169087 A CN 201610169087A CN 106019828 A CN106019828 A CN 106019828A
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China
Prior art keywords
liquid
mentioned
organic solvent
titanium oxide
photosensitive composite
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CN201610169087.4A
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Chinese (zh)
Inventor
高桥骏夫
中村秀
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Taiyo Holdings Co Ltd
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Sekisui Chemical Co Ltd
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Priority claimed from JP2016033857A external-priority patent/JP6618829B2/en
Application filed by Sekisui Chemical Co Ltd filed Critical Sekisui Chemical Co Ltd
Publication of CN106019828A publication Critical patent/CN106019828A/en
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    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/004Photosensitive materials
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/004Photosensitive materials
    • G03F7/027Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
    • 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
    • H05K3/22Secondary treatment of printed circuits
    • H05K3/28Applying non-metallic protective coatings
    • H05K3/282Applying non-metallic protective coatings for inhibiting the corrosion of the circuit, e.g. for preserving the solderability
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2203/00Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/05Patterning and lithography; Masks; Details of resist
    • H05K2203/0562Details of resist

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Materials For Photolithography (AREA)

Abstract

The invention provides a first liquid and a second liquid of a two-liquid mixing type, wherein the first liquid and the second liquid have excellent storage stability and can prevent deviation of the reflectivity of an anti-corrosion film. The first liquid and the second liquid are used for obtaining a mixture, that is, a first liquid and a second liquid of a two-liquid mixing type of a photo-sensitive composition. The first liquid contains a carboxyl-containing polymerizable polymer, a polymerization initiator, titanium oxide, inorganic filler and an organic solvent. The second liquid contains a cyclic-ether-containing compound, titanium oxide and inorganic filler, and is free of an organic solvent. No more than 10% by weight of the photo-sensitive composition contains the organic solvent based on that the photo-sensitive composition contains 100% by weight of the whole organic solvent.

Description

First, second liquid of two liquid mixed types and the manufacture method of printed wiring board
Technical field
The present invention relates to a kind of two liquid mixed types for obtaining the i.e. photosensitive composite of mixture first, Second liquid.More particularly it relates to one be preferred on substrate formed soldering-resistance layer or Be equipped with on the substrate of light-emitting diode chip for backlight unit formed reflection light etchant resist two liquid mixed types first, Second liquid.Moreover, it relates to a kind of first, second liquid employing above-mentioned two liquid mixed types The manufacture method of printed wiring board.
Background technology
As the protecting film for protecting printed wiring board to damage from high temperature scolding tin, welding resistance is widely used Film.
It addition, in various electronics applications, the upper surface at printed wiring board is equipped with light-emitting diodes Pipe (hreinafter referred to as LED) chip.In the light sent from LED, up to go up in order to use State the light of printed wiring board upper surface side, on the upper surface of printed wiring board, be sometimes formed with white resistance Weldering film.Now, the surface from LED chip can not only be utilized to shine directly into contrary with printed wiring board The light of side, additionally it is possible to utilize arrive printed wiring board upper surface side and by white solder masks reflect anti- Penetrate light.Therefore, it is possible to improve the utilization ratio of the light produced by LED.
As an example of the material for forming above-mentioned white solder masks, in following patent documentation 1, Disclosing a kind of erosion resistant, it contains, and to carry out dealcoholysis by epoxy resin and water-disintegrable alkoxy silane anti- The silane-modified epoxy resin containing alkoxyl answered and obtain, and comprise further containing unsaturated group Polycarboxylic acid resin, diluent, Photoepolymerizationinitiater initiater and solidification adaptation imparting agent.Can also resist at this Corrosion material coordinates the filleies such as titanium oxide.
In following patent documentation 2, disclose a kind of comprise do not have aromatic rings containing carboxy resin, light The white solder resist material of polymerization initiator, epoxide, Titanium Dioxide Rutile Top grade and diluent.
In following patent documentation 3, disclose a kind of mixing and the first of the two liquid mixed types that use, the Two liquid.Prepare first, second liquid, make the photonasty group of mixture as first, second liquid Compound entirety contains and has the polymerizable polymer of carboxyl, Photoepolymerizationinitiater initiater, has the change of cyclic ether group Compound, titanium oxide and organic solvent.Above-mentioned photosensitive composite contain selected from dipropylene glycol monomethyl ether, two Initial boiling point in ethylene glycol monoethylether acetate and distillation character is more than 150 DEG C and distills the end in character Evaporate at least two in the Petroleum being a little less than 290 DEG C as above-mentioned organic solvent.Above-mentioned first liquid contains There is above-mentioned polymerizable polymer, and containing selected from dipropylene glycol monomethyl ether, diethylene glycol monoethyl ether acetas And the initial boiling point in distillation character is more than 150 DEG C and distills the stone that the end point of distillation is less than 290 DEG C in character At least one in cerebrol is as a part for above-mentioned organic solvent.Above-mentioned second liquid contains and above-mentioned has The compound of cyclic ether group, and containing selected from diethylene glycol monoethyl ether acetas, dipropylene glycol monomethyl ether and Initial boiling point in distillation character is more than 150 DEG C and distills the stone brain that the end point of distillation is less than 220 DEG C in character At least one in oil is as a part for above-mentioned organic solvent.Above-mentioned first liquid contains above-mentioned photopolymerization Initiator or containing above-mentioned titanium oxide or containing above-mentioned Photoepolymerizationinitiater initiater and above-mentioned both titanium oxides.
In the case of above-mentioned first liquid is without above-mentioned Photoepolymerizationinitiater initiater, above-mentioned second liquid contains State Photoepolymerizationinitiater initiater, in the case of above-mentioned first liquid is without above-mentioned titanium oxide, above-mentioned second liquid Containing above-mentioned titanium oxide.
Prior art literature
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2007-249148 publication
Patent documentation 2: Japanese Unexamined Patent Publication 2007-322546 publication
Patent documentation 3:WO2012/111356A1
Summary of the invention
Invent technical problem to be solved
In existing erosion resistant as described in patent documentation 1~2, the problem that there is storage stability difference. Further, the existing erosion resistant described in patent documentation 1~2 is coated on substrate make against corrosion In the case of film, the reflectance of etchant resist produces deviation sometimes.
It addition, with first, second liquid phase ratio of two liquid mixed types described in patent documentation 3, preserve Stability is further excellent and is further not likely to produce the erosion resistant of reflectivity deviation of etchant resist The performance such as printed wiring board making to possess etchant resist improves.
It is an object of the invention to, it is provided that a kind of excellent storage stability and the reflection of etchant resist can be suppressed First, second liquid of two liquid mixed types of the deviation of rate.It addition, it is an object of the invention to, it is provided that A kind of use has the manufacture method of the printed wiring board of first, second liquid of above-mentioned two liquid mixed types.
For solving the technical scheme of technical problem
Aspect widely according to the present invention, it is possible to provide first, second liquid of a kind of two liquid mixed types (with Under, sometimes referred to as first, second liquid), it is for obtaining the photosensitive composite as mixture First, second liquid of two liquid mixed types, first, second liquid of this two liquid mixed type should for mixing Liquid before first, second liquid, the mixture of described first, second liquid mixing is the most photosensitive Property compositions entirety contains and has the polymerizable polymer of carboxyl, Photoepolymerizationinitiater initiater, has cyclic ether group Compound, the titanium oxide inorganic filler different from titanium oxide and organic solvent, described first liquid contains There is described in having the polymerizable polymer of carboxyl, described Photoepolymerizationinitiater initiater, described titanium oxide, described nothing Machine filler and described organic solvent, described second liquid contain described in there is the compound of cyclic ether group, institute Stating titanium oxide and described inorganic filler, described second liquid does not contains described organic solvent, or with described sense Containing below 10 weight % in overall 100 weight % of described organic solvent contained in photosensitiveness compositions State organic solvent.
In certain particular aspects of first, second liquid of the present invention, described second liquid is without described organic Solvent.
In certain particular aspects of first, second liquid of the present invention, contained in described photosensitive composite Described organic solvent contains dibasic acid ester.
In certain particular aspects of first, second liquid of the present invention, the mean diameter of described inorganic filler is More than 0.1 μm and below 10 μm.
In certain particular aspects of first, second liquid of the present invention, the described oxidation in described first liquid The content of the described titanium oxide in the content of titanium and described second liquid with mass ratio range as 20:80~80:20, Described inorganic filler in the content of the described inorganic filler in described first liquid and described second liquid Content is with mass ratio range as 20:80~80:20.
In certain particular aspects of first, second liquid of the present invention, described first, second liquid mixing and The i.e. photosensitive composite entirety of mixture become contains polymerizable monomer.
In certain particular aspects of first, second liquid of the present invention, described first, second liquid is used for shape Become soldering-resistance layer.
Aspect widely according to the present invention, it is possible to provide the manufacture method of a kind of printed wiring board, described print Brush wiring plate possesses:
Have on surface the printed wiring board main body of circuit and be stacked on this printed wiring board main body be provided with electricity Soldering-resistance layer on the surface on road,
The manufacture method of described printed wiring board includes following operation:
First, second liquid of above-mentioned two liquid mixed types is mixed, obtains described first, second liquid The solder mask composition that body mixes i.e. photosensitive composite;With
Have on the surface being provided with circuit of printed wiring board main body of circuit from the teeth outwards, apply described One, the solder mask composition that second liquid mixes i.e. photosensitive composite, is formed and is stacked on described print Soldering-resistance layer on the surface being provided with described circuit of brush wiring board body.
The effect of invention
The mixture i.e. photosensitive composition of first, second liquid mixing of the two liquid mixed types of the present invention Thing entirety contains and has the polymerizable polymer of carboxyl, Photoepolymerizationinitiater initiater, has the chemical combination of cyclic ether group Inorganic filler that thing, titanium oxide are different from titanium oxide and organic solvent, described first liquid contains described There is the polymerizable polymer of carboxyl, described Photoepolymerizationinitiater initiater, described titanium oxide, described inorganic filler With described organic solvent, described second liquid contain described in there is the compound of cyclic ether group, described oxidation Titanium and described inorganic filler, described second liquid does not contains described organic solvent, or with described photonasty group Containing described organic below 10 weight % in overall 100 weight % of described organic solvent contained in compound Solvent, therefore, the excellent storage stability of first, second liquid of two liquid mixed types, and can suppress to make Deviation with the reflectance of the etchant resist of first, second liquid of two liquid mixed types.
Accompanying drawing explanation
Fig. 1 is to schematically show to have the two liquid mixed types employing an embodiment of the invention Front cross-sectional view is blocked in the local of one example of the LED device of the etchant resist of first, second liquid.
[symbol description]
1 ... LED device
2 ... substrate
2a ... upper surface
3 ... etchant resist
3a ... upper surface
4a, 4b ... electrode
7 ... LED chip
7a ... lower surface
8a, 8b ... terminal
9a, 9b ... scolding tin
Detailed description of the invention
Hereinafter, the present invention is described in detail.
First, second liquid of the two liquid mixed types of the present invention is used for obtaining mixture i.e. photosensitive composite. First, second liquid of the two liquid mixed types of the present invention is for obtaining the i.e. photosensitive composite of mixture Combination (kit).First, second liquid of the two liquid mixed types of the present invention uses upon mixing.The two of the present invention First, second liquid of liquid mixed type is the liquid before this first, second liquid mixing.Before mixing First, second liquid be mixing before photosensitive composite.Being mixed with of the two liquid mixed types of the present invention The mixture of first, second liquid i.e. photosensitive composite entirety contains the polymerizable polymer with carboxyl (A), Photoepolymerizationinitiater initiater (B), there is the compound (C) of cyclic ether group, titanium oxide (D) and titanium oxide not Same inorganic filler (E) and organic solvent (F).The mixture being mixed with above-mentioned first, second liquid is photosensitive Property compositions, this photosensitive composite entirety being obtained by mixing contains above-mentioned (A)~(F) composition.
Above-mentioned first liquid contains above-mentioned polymerizable polymer (A), Photoepolymerizationinitiater initiater (B), titanium oxide (D) (part for the titanium oxide (D) in photosensitive composite), inorganic filler (E) are (in photosensitive composite A part for inorganic filler (E)) and organic solvent (F).
Above-mentioned second liquid contains and has the compound (C) of cyclic ether group, titanium oxide (D) (photosensitive composite In the part of titanium oxide (D)) and inorganic filler (E) (of the inorganic filler (E) in photosensitive composite Part).
Above-mentioned second liquid can contain organic solvent (F), it is also possible to without organic solvent (F).Above-mentioned second Liquid does not contains organic solvent (F), or whole with described organic solvent (F) contained in described photosensitive composite Containing organic solvent (F) below 10 weight % in body 100 weight %.Second liquid can be containing organic molten Agent (F), but in the case of second liquid contains organic solvent (F), the content of organic solvent (F) is few.
It addition, first, second liquid in the two liquid mixed types of the present invention contains polymerizable monomer described later Or containing in the case of antioxidant described later, polymerizable monomer and antioxidant may be embodied in the first liquid In body, it is also possible to be included in second liquid, it is also possible to be included in first liquid and second liquid.
By the above-mentioned composition in first, second liquid of the two liquid mixed types of the employing present invention, Ke Yiti The Combination of high above-mentioned first, second liquid.Further, by using above-mentioned composition, two liquid can be improved The storage stability of first, second liquid of mixed type.Further, by using above-mentioned composition, can press down System employs the deviation of the reflectance of the etchant resist of first, second liquid of two liquid mixed types.
As it has been described above, in the present invention that must use inorganic filler (E), make in first, second liquid Composition is coordinated to play bigger effect in terms of being used for obtaining the effect of the present invention.
Hereinafter, first, second liquid and the mixed photonasty group to the two liquid mixed types of the present invention Each composition contained in compound is described in detail.
(polymerizable polymer (A))
Above-mentioned polymerizable polymer (A) has carboxyl.The polymerizable polymer (A) with carboxyl has polymerization Property, may be polymerized.By above-mentioned polymerizable polymer (A), there is carboxyl, the development of photosensitive composite Property becomes good.As above-mentioned polymerizable polymer (A), such as, can enumerate: there is the acrylic acid of carboxyl Resin, there is the epoxy resin of carboxyl and there is the olefin resin of carboxyl.It should be noted that " resin " It is not limited to hard resin, also comprises fluid resin and oligomer.
Above-mentioned polymerizable polymer (A) is preferably following carboxylic resin (a)~(e).
A () carries out copolymerization by unsaturated carboxylic acid and the compound with polymerism unsaturated double-bond and obtains Carboxylic resin
B () is by having oxirane in (methyl) acrylic copolymeric resin (b1) containing carboxyl and 1 molecule The reaction of the compound (b2) of ring and olefinic polymerism unsaturated double-bond and the carboxylic resin that obtains
C () makes to be respectively provided with 1 epoxy radicals in unsaturated monocarboxylic and 1 molecule and polymerism is unsaturated double After the copolymer reaction that the compound of key and the compound with polymerism unsaturated double-bond are formed, make generation The secondary hydroxyl of reactant react with saturated or unsaturated multi-anhydride and the carboxylic resin that obtains
D () makes the polymer reaction of saturated or unsaturated multi-anhydride and hydroxyl after, make generation has carboxylic The compound being respectively provided with 1 epoxy radicals and polymerism unsaturated double-bond in the polymer of base and 1 molecule is anti- Should and obtain containing hydroxyl and the resin of carboxyl
E () makes the carboxylic compound at least with 1 unsaturated double-bond and the epoxidation with aromatic rings Compound and saturated polybasic acid acid anhydride or unsaturated multi-anhydride reaction and the resin that obtains or there is aromatic rings Epoxide react after, make saturated polybasic acid acid anhydride or the reaction of unsaturated multi-anhydride further and The resin obtained
In above-mentioned photosensitive composite 100 weight %, above-mentioned polymerizable polymer (A) with carboxyl contains Amount is preferably more than 3 weight %, more than more preferably 5 weight %, below preferably 50 weight %, more It is preferably below 40 weight %.If the content of the above-mentioned polymerizable polymer (A) with carboxyl is above-mentioned lower limit Above and below the above-mentioned upper limit, then the curable of photosensitive composite becomes good.
(Photoepolymerizationinitiater initiater (B))
Above-mentioned photosensitive composite contains Photoepolymerizationinitiater initiater (B), therefore, can make photosensitive by the irradiation of light Property compositions solidification.Photoepolymerizationinitiater initiater (B) is not particularly limited.Photoepolymerizationinitiater initiater (B) can individually make By one, it is also possible to be applied in combination two or more.
As above-mentioned Photoepolymerizationinitiater initiater (B), such as, can enumerate: acylphosphine oxide, halomethylation triazine, Halomethylation diazole, imidazoles, benzoin, benzoin alkylether, anthraquinone, benzanthrone, hexichol first Ketone, 1-Phenylethanone., thiaxanthone, benzoate, acridine, azophenlyene, titanocenes, alpha-aminoalkyl benzophenone, Oxime and their derivant.Above-mentioned Photoepolymerizationinitiater initiater (B) can be used alone one, it is also possible to combination makes With two or more.
From further improving the thermostability of etchant resist and light resistance, further suppression etchant resist surface From the viewpoint of adhesion, preferably acylphosphine oxide class Photoepolymerizationinitiater initiater.
In above-mentioned photosensitive composite, relative to above-mentioned polymerizable polymer (A) 100 weight with carboxyl Part, the content of above-mentioned Photoepolymerizationinitiater initiater (B) is preferably more than 0.1 weight portion, more preferably 1 weight portion Above, below preferably 30 weight portions, below more preferably 15 weight portions.If above-mentioned photopolymerization causes The content of agent (B) is below more than above-mentioned lower limit and the above-mentioned upper limit, then can further improve photosensitive composition The photonasty of thing.
(there is the compound (C) of cyclic ether group)
For improving the purpose cutting out processability etc. of etchant resist, above-mentioned photosensitive composite contains and has ring The compound (C) of shape ether.It addition, by using the above-mentioned compound (C) with cyclic ether group, photonasty The curable of compositions becomes good.
As the above-mentioned compound (C) with cyclic ether group, such as, can enumerate: bisphenol-s epoxy resin, The hetero ring type epoxy resin such as o-phthalic acid diglycidyl ester resin, triglycidyl isocyanurate, Bis-xylene phenol-type epoxy resin, bisphenol-type epoxy resin, four glycidyl group xylenols ethane resin, Bisphenol A type epoxy resin, bisphenol-A epoxy resin, bisphenol F type resin, bmminated bisphenol-A type Epoxy resin, phenol novolak type epoxy resin, cresol novolak type epoxy resin, ester ring type ring Epoxy resins, the phenolic resin varnish type epoxy resin of bisphenol-A, chelating type epoxy resin, Biformyl type asphalt mixtures modified by epoxy resin Fat, epoxy resin containing amino, rubber modified epoxy resin, dicyclopentadiene phenolic type epoxy resin, Polysiloxane modified epoxy resin and 6-caprolactone modified epoxy.The above-mentioned chemical combination with cyclic ether group Thing (C) can be used alone one, it is also possible to is applied in combination two or more.
The above-mentioned compound (C) with cyclic ether group is had with the above-mentioned polymerizable polymer (A) with carboxyl Some carboxyl reactions, and play a role and make photosensitive composite solidify.The above-mentioned chemical combination with cyclic ether group Thing (C) is preferably epoxide.
In above-mentioned photosensitive composite, relative to above-mentioned polymerizable polymer (A) 100 weight with carboxyl Part, the content of the above-mentioned compound (C) with cyclic ether group is preferably more than 0.1 weight portion, more preferably More than 1 weight portion, below preferably 50 weight portions, below more preferably 30 weight portions.Have if above-mentioned The content of the compound (C) of cyclic ether group is below more than above-mentioned lower limit and the above-mentioned upper limit, then can be further Improve the electrical insulating property of etchant resist.
(titanium oxide (D))
Above-mentioned photosensitive composite contains titanium oxide (D), therefore, can form the high soldering-resistance layer of reflectance etc. and resist Erosion film.Titanium oxide (D) contained in above-mentioned photosensitive composite is not particularly limited.Titanium oxide (D) can be single Solely use one, it is also possible to be applied in combination two or more.
Compared with the situation of other inorganic filler used beyond titanium oxide (D), by using above-mentioned titanium oxide (D), the etchant resist that reflectance is high can be formed.
Above-mentioned titanium oxide (D) is preferably Titanium Dioxide Rutile Top grade or anatase-type titanium oxide.By using golden red Stone-type titanium oxide, can form the etchant resist that heat-resisting xanthochromia is further excellent.Above-mentioned Detitanium-ore-type aoxidizes Titanium is lower than the hardness of Titanium Dioxide Rutile Top grade.Therefore, by using anatase-type titanium oxide, can improve The processability of etchant resist.
It addition, from the storage stability of first, second liquid that can further improve two liquid mixed types, And from the viewpoint of further suppressing the deviation of reflectance of etchant resist, above-mentioned titanium oxide (D) preferably comprises Titanium Dioxide Rutile Top grade.
Above-mentioned titanium oxide (D) preferably comprises and has carried out surface by Si oxide or polysiloxane compound The Titanium Dioxide Rutile Top grade of reason.In above-mentioned titanium oxide (D) 100 weight %, by above-mentioned Si oxide or poly- Silicone compounds carried out the content of Titanium Dioxide Rutile Top grade that surface processes be preferably 10 weight % with On, more than more preferably 30 weight % and below 100 weight %.The total amount of above-mentioned titanium oxide (D) can be The Titanium Dioxide Rutile Top grade that surface processes has been carried out by above-mentioned Si oxide or polysiloxane compound.Logical Cross to use and carried out, by above-mentioned Si oxide or polysiloxane compound, the rutile-type oxidation that surface processes Titanium, can further improve the heat-resisting xanthochromia of etchant resist.
The rutile-type oxidation that surface processes has been carried out as by Si oxide or polysiloxane compound Titanium, such as, can enumerate: the marque that rutile chlorine method titanium oxide Ji Shiyuan industry companies manufactures: The marque that CR-90 or rutile sulfuric acid process titanium oxide Ji Shiyuan industry companies manufacture: R-550 etc..
The mean diameter of above-mentioned titanium oxide (D) is preferably more than 0.1 μm, and more than more preferably 0.15 μm, It is preferably below 1.0 μm, below more preferably 0.5 μm.
Mean diameter in above-mentioned titanium oxide (D) is that in volume reference size distribution curve, accumulated value is 50% Time particle size values.This mean diameter such as can use laser type particle size distribution meter to measure.As this laser type The commercially available prod of particle size distribution meter, can enumerate: " LS 13 320 " that Beckman Coulter company manufactures Deng.
In above-mentioned photosensitive composite 100 weight %, the content of titanium oxide (D) and Titanium Dioxide Rutile Top grade divides You Xuanwei be more than 3 weight %, more than more preferably 10 weight %, more preferably 15 weight % with On, below preferably 80 weight %, below more preferably 75 weight %, more preferably 70 weight Below %.If the content of titanium oxide (D) and Titanium Dioxide Rutile Top grade be more than above-mentioned lower limit and the above-mentioned upper limit with Under, then when etchant resist is exposed to high temperature, it is not susceptible to xanthochromia.Further, can easily prepare have suitable Photosensitive composite in the viscosity of coating.
It addition, the titanium oxide (D) in the content of titanium oxide (D) in above-mentioned first liquid and above-mentioned second liquid Content with the weight ratio (content of the titanium oxide (D) in first liquid: the titanium oxide (D) in second liquid Content) meter preferably 20:80~80:20, more preferably 50:50~75:25.
(inorganic filler (E))
Above-mentioned inorganic filler (E) is the inorganic filler different from titanium oxide.Above-mentioned inorganic filler (E) can be independent Use one, it is also possible to be applied in combination two or more.
As the concrete example of above-mentioned inorganic filler (E), can enumerate: silicon dioxide, aluminium oxide, Muscovitum, Beryllium oxide, potassium titanate, Barium metatitanate., strontium titanates, calcium titanate, zirconium oxide, stibium oxide, Alborex M 12, hydrogen Aluminium oxide, magnesium oxide, calcium carbonate, magnesium carbonate, aluminium carbonate, calcium silicates, aluminium silicate, magnesium silicate, phosphorus Clay, Talcum, the carborundums such as acid calcium, calcium sulfate, barium sulfate, silicon nitride, boron nitride, calcined clay And silicon particle etc..Above-mentioned inorganic filler (E) can be used alone one, it is also possible to is applied in combination two or more.
From further improving the thermostability of etchant resist and light resistance, further suppressing the surface of etchant resist From the viewpoint of adhesion, above-mentioned photosensitive composite preferably comprises Talcum or silicon dioxide, more preferably contains Silicon dioxide.Above-mentioned photosensitive composite can contain Talcum.
The mean diameter of above-mentioned inorganic filler (E) is preferably more than 0.1 μm, and more than more preferably 0.2 μm, It is preferably below 10 μm, below more preferably 5 μm.
Mean diameter in above-mentioned inorganic filler (E) is that in volume reference size distribution curve, accumulated value is 50% Time particle size values.This mean diameter such as can use laser type particle size distribution meter to measure.As this laser type The commercially available prod of particle size distribution meter, can enumerate: " LS 13 320 " that Beckman Coulter company manufactures Deng.
In above-mentioned photosensitive composite 100 weight %, the content of above-mentioned inorganic filler (E) and Talcum and dioxy The total content of SiClx is respectively preferably more than 0.1 weight %, more than more preferably 1 weight %, the most excellent Elect more than 3 weight % as, below preferably 50 weight %, below more preferably 30 weight %, further It is preferably below 10 weight %.If the content of above-mentioned inorganic filler (E) and Talcum and the total content of silicon dioxide For more than above-mentioned lower limit and below the above-mentioned upper limit, then thermostability and the light resistance of etchant resist further uprises, Can further suppress surface adhering.
In above-mentioned photosensitive composite 100 weight %, above-mentioned titanium oxide (D) and above-mentioned inorganic filler (E) total Content is preferably more than 5 weight %, and more than more preferably 10 weight %, more preferably 20 weight % Above, below preferably 80 weight %, below more preferably 60 weight %, more preferably 40 weight Amount below %.If the total content of above-mentioned titanium oxide (D) and above-mentioned inorganic filler (E) be more than above-mentioned lower limit and on State below the upper limit, then thermostability and the light resistance of etchant resist further uprises, and can further suppress table Adhere in face.
In above-mentioned photosensitive composite, the weight ratio of the content of above-mentioned titanium oxide (D) and above-mentioned inorganic filler (E) (content of titanium oxide (D): the content of inorganic filler (E)) is preferably 0.1:99.9~99.9:0.1, more preferably 1:99~99:1, more preferably 10:90~90:10.
It addition, inorganic in the content of inorganic filler (E) in above-mentioned first liquid and above-mentioned second liquid is filled out The content of material (E) is with the weight ratio (content of the inorganic filler (E) in first liquid: inorganic in second liquid is filled out The content of material (E)) meter preferably 20:80~80:20, more preferably 30:70~50:50.
(organic solvent (F))
Above-mentioned photosensitive composite contains organic solvent (F).The sense of above-mentioned first, second liquid mixing Photosensitiveness compositions contains organic solvent (F).Above-mentioned photosensitive composite contains at least 2 kinds of organic solvents.Have Machine solvent (F) can be used alone one, it is also possible to combines two or more.
As commonly known organic solvent, can enumerate: the ketone such as methyl ethyl ketone, Ketohexamethylene;First Benzene, dimethylbenzene, durol etc. are aromatic hydrocarbon;Cellosolve, methyl cellosolve, butyl cellosolve, Carbitol, methyl carbitol, butyl carbitol, propylene glycol monomethyl ether, dipropylene glycol monomethyl ether, dipropyl The glycol ethers such as glycol diethyl ether, Tripropylene glycol monomethyl Ether;Ethyl acetate, butyl acetate, butyl lactate, Cellosolve acetate, butyl cellosolve acetate, carbitol acetate, acetate of butyl carbitol, third Glycol monomethylether acetate, diethylene glycol monoethyl ether acetas, dipropylene glycol monomethyl ether acetas, carbonic acid The esters such as sub-propyl ester;The aliphatic hydrocarbon such as octane, decane;The petroleum solvents such as petroleum ether, Petroleum with And dibasic acid ester etc..Above-mentioned dibasic acid ester is the solvent being referred to as DBE.
Above-mentioned photosensitive composite preferably comprises dibasic acid ester, dipropylene glycol monomethyl ether, diethylene glycol list second Initial boiling point in ether acetic acid ester or distillation character is more than 150 DEG C and the end point of distillation that distills in character is 290 DEG C Following Petroleum is as above-mentioned organic solvent (F).Now, the of two liquid mixed types can further be improved One, the storage stability of second liquid, and, can further suppress to employ the of two liquid mixed types One, the deviation of the reflectance of the etchant resist of second liquid.Contained in above-mentioned photosensitive composite above-mentioned have Machine solvent (F) preferably comprises dibasic acid ester.
Above-mentioned first liquid preferably comprises dibasic acid ester, dipropylene glycol monomethyl ether, diethylene glycol monoethyl ether second Initial boiling point in acid esters or distillation character is more than 150 DEG C and the end point of distillation that distills in character is less than 290 DEG C Petroleum as above-mentioned organic solvent (F).Above-mentioned organic solvent (F) contained in above-mentioned first liquid is preferred Containing dibasic acid ester.
Above-mentioned second liquid can contain above-mentioned organic solvent (F), it is also possible to without above-mentioned organic solvent (F). The content of the above-mentioned organic solvent (F) in above-mentioned second liquid is the most less.Contain at above-mentioned second liquid In the case of stating organic solvent (F), above-mentioned second liquid preferably comprise dibasic acid ester, dipropylene glycol monomethyl ether, Initial boiling point in diethylene glycol monoethyl ether acetas or distillation character is more than 150 DEG C and distills in character The end point of distillation is that the Petroleum of less than 290 DEG C is as above-mentioned organic solvent (F).Contained by above-mentioned second liquid Above-mentioned organic solvent (F) can contain dibasic acid ester.
As above-mentioned organic solvent (F), it is possible to use dibasic acid ester, it is possible to use dipropylene glycol monomethyl ether, Diethylene glycol monoethyl ether acetas can be used, it is possible to use distillation character in initial boiling point be 150 DEG C with The Petroleum that the end point of distillation is less than 290 DEG C above and in distillation character.
Above-mentioned " initial boiling point in distillation character " and above-mentioned " end point of distillation in distillation character " refers to pass through JIS The value that K2254 " petroleum product-distillation test method " records.
The organic solvent that the content of the organic solvent (F) in above-mentioned second liquid is contained in photosensitive composite (F) entirety 100 weight % is preferably below 5 weight %, below more preferably 1 weight %.
In first, second overall 100 weight % of liquid of two liquid mixed types and mixed photonasty group In compound 100 weight %, the content of organic solvent (F) is preferably more than 5 weight %, more preferably 10 weights Amount more than %, below preferably 50 weight %, below more preferably 30 weight %.
(other composition)
In order to further improve curable, above-mentioned photosensitive composite preferably comprises polymerizable monomer conduct The composition different from the polymerizable polymer (A) with carboxyl.Above-mentioned photosensitive composite preferably comprises to be had Both the polymerizable polymer (A) of carboxyl and polymerizable monomer.Above-mentioned polymerizable monomer has polymerism, May be polymerized.Above-mentioned polymerizable monomer is not particularly limited.Above-mentioned polymerizable monomer can be used alone A kind of, it is also possible to be applied in combination two or more.
Above-mentioned polymerizable monomer is preferably the monomer containing polymerism unsaturated group.As above-mentioned polymerism Polymerism unsaturated group in monomer, such as, can enumerate: (methyl) acryloyl group and vinyl ether group etc. There is the functional group of polymerism unsaturated double-bond.Due to (methyl) acryloyl group, can to improve the crosslinking of etchant resist close Degree, therefore preferably.
The above-mentioned monomer containing polymerism unsaturated group preferably has the compound of (methyl) acryloyl group. As the above-mentioned compound with (methyl) acryloyl group, can enumerate: ethylene glycol, methoxyl group TEG, Two (methyl) the acrylate modified thing of the alcohol such as Polyethylene Glycol or propylene glycol or polyhydric alcohol, the ring of polyhydric alcohol Polynary (methyl) the acrylate modified thing of the propylene oxide adduct of oxidative ethane addition product or polyhydric alcohol or (methyl) of the propylene oxide adduct of phenol, the ethylene oxide adduct of phenol or phenol is acrylate modified Thing or the (first of the glycidyl ether such as glycerin diglycidyl ether or trihydroxymethylpropanyltri diglycidyl ether Base) acrylate modified thing or tripolycyanamide (methyl) acrylate.
As above-mentioned polyhydric alcohol, such as, can enumerate: hexanediol, trimethylolpropane, tetramethylolmethane, Dipentaerythritol and tris(2-hydroxy ethyl)isocyanurate.As (methyl) acrylate of above-mentioned phenol, such as may be used To enumerate: two (methyl) acrylate modified thing of (methyl) acrylic acid phenoxy group ester and bisphenol-A.
" (methyl) acryloyl group " refers to acryloyl group and methylacryloyl." (methyl) acrylic acid " refers to third Olefin(e) acid and methacrylic acid." (methyl) acrylate " refers to acrylate and methacrylate.
In the case of containing above-mentioned polymerizable monomer, at this polymerizable monomer with above-mentioned there is the poly-of carboxyl Close property polymer (A) amount in 100 weight %, the content of above-mentioned polymerizable monomer be preferably 5 weight % with On, below preferably 50 weight %.If the content of above-mentioned polymerizable monomer is more than above-mentioned lower limit and above-mentioned Below the upper limit, then photosensitive composite can be made fully to solidify.Further, the crosslink density of etchant resist becomes suitable When, sufficient exploring degree can be obtained, and etchant resist is not susceptible to xanthochromia.
Above-mentioned polymerizable monomer can be contained in first liquid, it is also possible to is contained in second liquid, also Can be contained in both first liquid and second liquid.
The risk of soldering-resistance layer generation xanthochromia when being exposed to high temperature to reduce, above-mentioned photosensitive composite is preferred Containing antioxidant.Above-mentioned antioxidant preferably has lewis base property position.From further suppressing anti- From the viewpoint of erosion film xanthochromia, above-mentioned antioxidant is preferably selected from phenol antioxidant, Phosphorus antioxidation At least one in agent and amine antioxidants.Examine from the viewpoint further suppressing etchant resist generation xanthochromia Considering, above-mentioned antioxidant is preferably phenol antioxidant.That is, above-mentioned photosensitive composite preferably comprises phenol Class antioxidant.
As the commercially available prod of above-mentioned phenol antioxidant, can enumerate: IRGANOX 1010, IRGANOX 1035、IRGANOX 1076、IRGANOX 1135、IRGANOX 245、 IRGANOX 259 and IRGANOX 295 (be above Ciba Japan company manufacture), ADEKASTAB AO-30、ADEKASTAB AO-40、ADEKASTAB AO-50、 ADEKASTAB AO-60、ADEKASTAB AO-70、ADEKASTAB AO-80、 ADEKASTAB AO-90 and ADEKASTAB AO-330 (being ADEKA company above to manufacture), Sumilizer GA-80、Sumilizer MDP-S、Sumilizer BBM-S、Sumilizer GM、Sumilizer GS (F) and Sumilizer GP (be above Sumitomo Chemical Co. Ltd. manufacture), HOSTANOX O10, HOSTANOX O16, HOSTANOX O14 and HOSTANOX O3 (are Clariant public above Department manufacture), Antage BHT, Antage W-300, Antage W-400 and Antage W500 (the most equal For chemical industrial company of Kawaguchi manufacture) and SEENOX 224M and SEENOX 326M (be above Shipro is melted into company and manufactures) etc..
As above-mentioned phosphorus antioxidants, can enumerate: cyclohexyl phosphine and triphenylphosphine etc..As above-mentioned The commercially available prod of phosphorus antioxidants, can enumerate: ADEKASTAB PEP-4C, ADEKASTAB PEP-8、ADEKASTAB PEP-24G、ADEKASTAB PEP-36、ADEKASTAB HP-10、 ADEKASTAB 2112、ADEKASTAB 260、ADEKASTAB 522A、ADEKASTAB 1178、ADEKASTAB 1500、ADEKASTAB C、ADEKASTAB 135A、 ADEKASTAB 3010 and ADEKASTAB TPP (being ADEKA company above to manufacture), Sandostab P-EPQ and Hostanox PAR24 (be above Clariant company manufacture) and JP-312L, JP-318-0, JPM-308, JPM-313, JPP-613M, JPP-31, JPP-2000PT and JPH-3800 (being north of the city chemical industrial company above to manufacture) etc..
As above-mentioned amine antioxidants, can enumerate: triethylamine, double cyanogen diamidogen, tripolycyanamide, second Base diaminourea s-triazine, 2,4-diaminourea s-triazine, 2,4-diaminourea-6-tolyl s-triazine, 2,4-diamino Base-6-xylyl s-triazine and quaternary ammonium salt derivative etc..
Relative to above-mentioned polymerizable polymer (A) 100 weight portion with carboxyl, containing of above-mentioned antioxidant Amount is preferably more than 0.1 weight portion, more than more preferably 5 weight portions, below preferably 30 weight portions, Below more preferably 15 weight portions.If the content of above-mentioned antioxidant is below more than above-mentioned lower limit and the upper limit, Then can form the etchant resist that heat-resisting xanthochromia is further excellent.
It addition, above-mentioned photosensitive composite can also contain coloring agent, filler, defoamer, firming agent, Curing accelerator, releasing agent, surface conditioning agent, fire retardant, viscosity modifier, dispersant, dispersion help Agent, surface modifier, plasticizer, antibacterial, antifungus agent, levelling agent, stabilizer, coupling agent, anti- Sagging agent or fluorophor etc..
Above-mentioned photosensitive composite such as can be by after stirring mixes each gradation composition, by using three Roller machine carries out mixing to prepare equably.
As for making the light source that above-mentioned photosensitive composite solidifies, can enumerate: send ultraviolet or can See the irradiation unit of light isoreactivity energy line.As above-mentioned light source, such as, can enumerate: high-pressure water Silver lamp, DeepUV lamp, high-pressure mercury-vapor lamp, low pressure mercury lamp, metal halide lamp and excimer laser. These light sources suitably can select according to the wavelength photoreceptor of the constituent of photosensitive composite.The irradiation of light Energy suitably can select according to the constituent of desired thickness or photosensitive composite.The irradiation energy of light Amount is general 10~3000mJ/cm2In the range of.
(LED device)
First, second liquid of the two liquid mixed types of the present invention is preferably used to form the etchant resist of LED device, It is more preferably used for forming soldering-resistance layer.First, second liquid of the two liquid mixed types of the present invention is the most against corrosion Agent compositions, preferably solder mask composition.
The manufacture method of the printed wiring board of the present invention is the manufacture method manufacturing following printed wiring board, institute State printed wiring board to possess: there is on surface the printed wiring board main body of circuit and be stacked on this printed wiring Etchant resist on the surface being provided with foregoing circuit of plate main body.This etchant resist is by the two liquid mixed types of the present invention First, second liquid formed.
In FIG, block front cross-sectional view with local to schematically show to have and use one of the present invention One example of the LED device of the etchant resist that first, second liquid of two liquid mixed types of embodiment is formed Son.
In the LED device 1 shown in Fig. 1, the upper surface 2a superimposed layer at substrate 2 has and is mixed by two liquid The etchant resist 3 that first, second liquid of mould assembly is formed.Etchant resist 3 is pattern film.Therefore, at substrate 2 Upper surface 2a a part of region in, be formed without etchant resist 3.Etchant resist is not formed at substrate 2 The upper surface 2a of 3 parts is provided with electrode 4a and electrode 4b.Substrate 2 is preferably printed wiring board main body.
Upper surface 3a superimposed layer at etchant resist 3 has LED chip 7.On a substrate 2 across etchant resist 3 Lamination has LED chip 7.It is provided with terminal 8a and terminal in the outer peripheral edge of the lower surface 7a of LED chip 7 8b.Terminal 8a and terminal 8b is electrically connected by scolding tin 9a and scolding tin 9b and electrode 4a and electrode 4b. By this electrical connection, LED chip 7 can be supplied electric power.
Hereinafter, specific embodiment and comparative example by enumerating the present invention carry out the clear and definite present invention.
In embodiment and comparative example, use following material 1)~11).
1) acrylate copolymer 1 (has third obtained in the polymerizable polymer of carboxyl, following synthesis example 1 Olefin(e) acid polymer 1)
(synthesis example 1)
The flask possessing thermometer, blender, Dropping funnel and reflux condenser is put into as solvent Ethylcarbitol acetate and as the azodiisobutyronitrile of catalyst, be heated to 80 DEG C under nitrogen atmosphere, The mixed in molar ratio methacryloxyethyl acid with 30:70 and the list of methyl methacrylate is dripped with 2 hours Body.After dropping, stir 1 hour, temperature is risen to 120 DEG C.Then, cool down.Add propylene Acid glycidyl ester, its mole is 10 with the ratio of the integral molar quantity of the total monomer units of the resin obtained, Use Tetrabutylammonium bromide as catalyst, heat 30 hours at 100 DEG C, make glycidyl Ester and carboxyl carry out additive reaction.After cooling, take out from flask, obtain containing 50 weight % (non-volatile Composition) solid constituent acid number 60mgKOH/g, weight average molecular weight 15000, the containing of double bond equivalent 1000 The solution of carboxy resin.Hereinafter, this solution is referred to as acrylate copolymer 1.
2) DPHA (acrylic monomers, dipentaerythritol acrylate)
3) 828 (bisphenol A type epoxy resin, Mitsubishi Chemical Ind manufacture)
4) TPO (optical free radical producing agent i.e. Photoepolymerizationinitiater initiater, BASF Japan company manufacture)
5) CR-50 (Titanium Dioxide Rutile Top grade that titanium oxide, Shi Yuan industry companies manufacture, utilize chlorine method to manufacture)
6) FH105 (Talcum, talc company of Fuji manufacture)
7) 5X (silicon dioxide, Long Sen company manufacture)
8) KS-7710 (complex silicone oil, polydimethylsiloxane, chemical industrial company of SHIN-ETSU HANTOTAI manufacture)
9) ethylcarbitol acetate (diethylene glycol monoethyl ether acetas, Diacel company manufacture)
10) dipropylene glycol monomethyl ether (emulsifying agent company of Japan manufactures)
11) DBE (dibasic acid ester, three chemical companies of association manufacture)
(embodiment 1)
Coordinate acrylate copolymer 1, TPO (the optical free radical producing agent of 2g obtained in 15g synthesis example 1 I.e. Photoepolymerizationinitiater initiater, BASF Japan company manufactures), (it is public that titanium oxide, stone originate in industry to the CR-50 of 30g Department manufactures), the ethylcarbitol acetate of 30g (diethylene glycol monoethyl ether acetas, Diacel company manufacture), The KS-7710 of the FH105 of 5g (Talcum, talc company of Fuji manufacture) and 1g (complex silicone oil, poly-two Methylsiloxane, chemical industrial company of SHIN-ETSU HANTOTAI manufacture), (practice Taro ARE-310, Thinky with mixer Company manufactures) after mixing 3 minutes, mix with three rollers, thus obtain mixture.Then, ARE-310 is used To the mixture deaeration obtained 3 minutes, thus obtain first liquid.
Coordinate 828 (bisphenol A type epoxy resin, Mitsubishi Chemical Ind manufacture) of 8g, the DPHA (two of 5g Tetramethylolmethane six acrylate), 5gFH105 (Talcum, talc company of Fuji manufacture) and 10gCR-50 (aoxidizes Titanium, Shi Yuan industry companies manufacture), with mixer (practice Taro ARE-310, Thinky company manufacture) mixing After 3 minutes, with 3 roller mixing, obtain mixture.Then, the ARE-310 mixing to obtaining is used Thing deaeration 3 minutes, thus obtains second liquid.
First, second liquid of the two liquid mixed types with first, second liquid prepared above is (before mixing Photosensitive composite).
(embodiment 2~9 and comparative example 1,2)
By the kind of material used in first liquid and second liquid and use level as described in Table 1 Change like that, in addition, obtain that there is the two of first, second liquid similarly to Example 1 First, second liquid (photosensitive composite before mixing) of liquid mixed type.
(evaluation)
(1) storage stability
As above first, second liquid obtained is put into plastic containers (nearly Ji Vessel Inc manufacture, BHS-1200), at room temperature stand 6 months, then, take 2g from first, second liquid respectively The liquid of clear liquid and container bottom part, in crucible, carries out 2 hours burning till at 550 DEG C, following formula calculates Ash.
Liquid weight × 100 before liquid weight after ash (%)=burn till/burn till
The difference that ash according to the supernatant obtained by above-mentioned formula and the liquid of container bottom part divides, by following Standard determination storage stability.
[determinating reference of storage stability]
Zero: the difference of ash point is less than 0.1%
△: the difference of ash point is 0.1% less than 0.5%
×: the difference of ash point is more than 0.5%
(2) deviation of the reflectance of etchant resist
Measure the making of sample
First liquid and second liquid are put into 1L round plastic containers (nearly Ji Vessel Inc manufacture, BHS-1200), the automatic ink mixer utilizing Mesh company to manufacture stirs 10 seconds with 50rpm, system Make erosion resistant (mixed photosensitive composite).
Prepare 510mm × 610mm, the FR-4 substrate of thickness 0.8mm.By being screen printed onto this base Use the version that 100 mesh polyester biass manufacture on plate, and print erosion resistant with full version pattern.After printing, It is dried 20 minutes in the baking oven of 80 DEG C, substrate is formed erosion resistant layer.Then, across having finger Determine the photomask of pattern, use ultraviolet lamp with 100mW/cm2Ultraviolet illumination to material against corrosion The bed of material irradiates the ultraviolet of 4 seconds wavelength 365nm so that irradiation energy is 400mJ/cm2.Then, for The erosion resistant layer in removing unexposed portion and form pattern, erosion resistant layer is impregnated into the 1 of sodium carbonate Weight % aqueous solution develops, substrate is formed etchant resist.Then, add in the baking oven of 150 DEG C Heat solidifies after within 1 hour, making etchant resist carry out, and thus obtains as the etchant resist measuring sample.Obtain is anti- The thickness of erosion film is 20 μm.
Use color/colour difference meter (Konica Minoluta company manufacture, CR-400) to 510mm × 610mm Measure 4 angle parts of sample and middle body amounts to the value measuring reflectance at 5.
[determinating reference of the deviation of the reflectance of etchant resist]
Zero: standard deviation is less than 0.5
△: standard deviation is 0.5 less than 1.0
×: standard deviation is more than 1.0
Composition and result are shown in table 1 below.

Claims (8)

1. first, second liquid of two liquid mixed types, it is used for obtaining mixture i.e. photosensitive composite, First, second liquid of this two liquid mixed type is the liquid before this first, second liquid mixing,
The i.e. photosensitive composite entirety of mixture of described first, second liquid mixing contains:
There is the polymerizable polymer of carboxyl, Photoepolymerizationinitiater initiater, there is the compound of cyclic ether group, oxygen Change the titanium inorganic filler different from titanium oxide and organic solvent,
Described first liquid contains:
Described have the polymerizable polymer of carboxyl, described Photoepolymerizationinitiater initiater, described titanium oxide, described Inorganic filler and described organic solvent,
Described second liquid contains:
Described have the compound of cyclic ether group, described titanium oxide and described inorganic filler,
Described second liquid does not contains described organic solvent, or with institute contained in described photosensitive composite State below 10 weight % in overall 100 weight % of organic solvent containing described organic solvent.
First, second liquid of two liquid mixed types the most according to claim 1, wherein, described Second liquid does not contains described organic solvent.
First, second liquid of two liquid mixed types the most according to claim 1, wherein, described Described organic solvent contained in photosensitive composite contains dibasic acid ester.
4. according to first, second liquid of two liquid mixed types according to any one of claims 1 to 3, Wherein, the mean diameter of described inorganic filler is below more than 0.1 μm and 10 μm.
5. according to first, second liquid of two liquid mixed types according to any one of claims 1 to 3, Wherein,
Described titanium oxide in the content of the described titanium oxide in described first liquid and described second liquid Content with mass ratio range as 20:80~80:20,
Described inorganic in the content of the described inorganic filler in described first liquid and described second liquid The content of filler is with mass ratio range as 20:80~80:20.
6. according to first, second liquid of two liquid mixed types according to any one of claims 1 to 3, Wherein, the i.e. photosensitive composite entirety of mixture of described first, second liquid mixing contains polymerization Property monomer.
7. according to first, second liquid of two liquid mixed types according to any one of claims 1 to 3, Wherein, first, second liquid of described two liquid mixed types is used for forming soldering-resistance layer.
8. a manufacture method for printed wiring board, wherein,
Described printed wiring board possesses:
There is on surface the printed wiring board main body of circuit and be stacked on being provided with of this printed wiring board main body Soldering-resistance layer on the surface of circuit,
The manufacture method of described printed wiring board includes following operation:
First, second liquid of two liquid mixed types according to any one of claim 1~7 is mixed Close, obtain the solder mask composition i.e. photosensitive composite of described first, second liquid mixing;With
Have on the surface being provided with circuit of printed wiring board main body of circuit from the teeth outwards, apply described One, the solder mask composition that second liquid mixes i.e. photosensitive composite, is formed and is stacked on described print Soldering-resistance layer on the surface being provided with described circuit of brush wiring board body.
CN201610169087.4A 2015-03-25 2016-03-23 First liquid and second liquid of two-liquid mixing type and method for manufacturing printed wiring board Pending CN106019828A (en)

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