CN107009697A - Copper foil covered stack and printed wiring board - Google Patents

Copper foil covered stack and printed wiring board Download PDF

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Publication number
CN107009697A
CN107009697A CN201710008965.9A CN201710008965A CN107009697A CN 107009697 A CN107009697 A CN 107009697A CN 201710008965 A CN201710008965 A CN 201710008965A CN 107009697 A CN107009697 A CN 107009697A
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CN
China
Prior art keywords
copper foil
foil covered
oxidant layer
gluing oxidant
covered stack
Prior art date
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Pending
Application number
CN201710008965.9A
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Chinese (zh)
Inventor
田崎崇司
盐谷淳
山口贵史
杦本启辅
中村太阳
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Arakawa Chemical Industries Ltd
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Arakawa Chemical Industries Ltd
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Publication of CN107009697A publication Critical patent/CN107009697A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/04Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/04Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/20Layered products comprising a layer of metal comprising aluminium or copper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02Physical, chemical or physicochemical properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04Interconnection of layers
    • B32B7/12Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • 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
    • H05K1/03Use of materials for the substrate
    • H05K1/0313Organic insulating material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/20Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/206Insulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/30Properties of the layers or laminate having particular thermal properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/50Properties of the layers or laminate having particular mechanical properties
    • B32B2307/538Roughness
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2311/00Metals, their alloys or their compounds
    • B32B2311/24Aluminium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00Electrical equipment
    • B32B2457/08PCBs, i.e. printed circuit boards

Abstract

The present invention relates to copper foil covered stack and printed wiring board.The present invention provides metal adhesivity, heat resistance, the low-k of insulating materials, the metal-clad stack of low dielectric loss angle tangent characteristic good and the novel printing wiring plate being characterized is lost with low transmission using the metal-clad stack.A kind of copper foil covered stack, it is the copper foil covered stack for possessing the copper foil (3) being layered in via gluing oxidant layer (2) at least unilateral face of dielectric film (1), characterized in that, the thermal coefficient of expansion of dielectric film (1) is 4~30ppm/ DEG C;Gluing oxidant layer (2) contains anhydride group end polyimides (A) and crosslinking component (B), and anhydride group end polyimides (A) is the reaction product of aromatic tetracarboxylic acid's acid anhydride and the diamine monomer comprising dimer type diamine;10 mean roughness (Rz) in the face contacted with gluing oxidant layer (2) of copper foil (3) are 0.1~1.5 μm.

Description

Copper foil covered stack and printed wiring board
Technical field
The present invention relates to copper foil covered stack and printed wiring board.
Background technology
Flexible printing wiring board (FPWB:Flexible Printed Wiring Board) and printed circuit board (PCB) (PCB: Printed Circuit Board) and their multiwiring board has been used in mobile communication equipments such as mobile phone, smart mobile phones Or be widely used in the product such as network associated electronic device, the mainframe computer such as its base station apparatus, server/router.
In recent years, for these products, high frequency telecommunications is used to transmit/handle Large Copacity information at high speed Number, but high-frequency signal is very easy to decay, therefore, is also required that for multiwiring board and tries to suppress transmission loss as far as possible. There is conductor losses and dielectric substance loss in transmission loss.When the frequency of electric signal is more than GHz, conductor losses is because of kelvin effect Surface state dependent on the copper foil used in circuit.On the other hand, Jie of the dielectric substance loss to the insulating materials of near circuitry Electrical characteristics, particularly dielectric loss angle tangent influence are very big.
As the means for suppressing the transmission loss in multiwiring board, for example, it is contemplated that will be excellent using low dielectric property Polyimides, the flexible copper clad foil plywood of liquid crystal polymer are used as base material (for example, see patent document 1 and 2).
But, the process that these methods need the laminating copper foil under high temperature (more than 300 DEG C) easily causes yield rate difference etc. Problem, seeks to solve.
On the other hand, also exist copper foil covered folded obtained from the copper foil of low roughness is combined with polyimide layer Plate come suppress from copper foil surface state conductor losses, suppress transmission loss method (for example, see patent document 3), But the bonding process under high temperature (more than 300 DEG C) is stilled need when copper foil is fitted, easily causes the problems such as yield rate is poor, solution is sought Certainly.
In addition, from the viewpoint of impedance control, the dielectric constant of preferred insulative material is relatively low.That is, the resistance of transmission circuit Anti- (Z0) determined by the thickness and dielectric constant, the width of circuit and thickness of insulating materials.In recent years, the film of circuit substrate Change promote, in order to take into account impedance control and filming, it is necessary to (1) reduction insulating materials dielectric constant or (2) circuit it is thin Membranization and thin space.But, the possibility that circuit reliability is lost in (2) is high therefore not preferred.Therefore, in expanded circuit In the sense that the free degree of design, the requirement of dielectric materials is high.
Prior art literature
Patent document
Patent document 1:Japanese Unexamined Patent Publication 08-058024 publications
Patent document 2:Japanese Unexamined Patent Application Publication 2014-526399 publications
Patent document 3:Japanese Unexamined Patent Publication 2015-91644 publications
The content of the invention
Invent problem to be solved
The major subjects of the present invention are to provide copper adhesivity, heat resistance, the low-k of insulating materials, low dielectric loss It is new that the copper foil covered stack of angle tangent characteristic good and being lost using the copper foil covered stack with low transmission is characterized Printed wiring board.
The means used to solve the problem
The result of the present inventor's further investigation finds, by being made dielectric film and copper foil layer via specific gluing oxidant layer Copper foil covered stack obtained from folded, low dielectric property, heat resistance, metal adhesivity are excellent, and are folded using the metal-clad The low transmission lossy for the printed wiring board that system is made is excellent, so as to complete the present invention.
That is, the present invention is as shown in following items 1~7.
A kind of 1. copper foil covered stacks of item, it is to possess to be layered at least unilateral of dielectric film (1) via gluing oxidant layer (2) Face on copper foil (3) copper foil covered stack, it is characterised in that
The thermal coefficient of expansion of dielectric film (1) is 4~30ppm/ DEG C,
Gluing oxidant layer (2) contains anhydride group end polyimides (A) and crosslinking component (B), anhydride group end polyamides Imines (A) is the reaction product of aromatic tetracarboxylic acid's acid anhydride and the diamine monomer comprising dimer type diamine,
10 mean roughness (Rz) in the face contacted with gluing oxidant layer (2) of copper foil (3) are 0.1~1.5 μm.
The copper foil covered stack of such as preceding paragraphes 1 of item 2., wherein, the content of dimer type diamine is 30 in diamine monomer Mole more than %.
The copper foil covered stack of item 3. such as preceding paragraph 1 or preceding paragraphes 2, wherein, aromatic tetracarboxylic acid's acid anhydride is by following representations Material.
(in formula, X represents singly-bound ,-SO2-、-CO-、-O-、-O-C6H4-C(CH3)2-C6H4- O- or-COO-Y-OCO- (Y tables Show-(CH2)1- (1 represents 1~20) or-H2C-HC (- O-C (=O)-CH3)-CH2-。)。)
The 4. copper foil covered stack as any one of preceding paragraph 1~3 of item, wherein, crosslinking component (B) is selected from by polyphenyl Ether resin, epoxy resin, benzoAt least one in the group that piperazine resin, bimaleimide resin and cyanate ester resin are constituted Kind.
The 5. copper foil covered stack as any one of preceding paragraph 1~4 of item, wherein, gluing oxidant layer (2) is also containing reactivity Polyglycidyl compounds (C).
The 6. copper foil covered stack as any one of preceding paragraph 1~5 of item, wherein, under the 10GHz of gluing oxidant layer (2) Dielectric constant is less than 3.0, and dielectric loss angle tangent is less than 0.005.
A kind of 7. printed wiring boards of item, it is entered by the copper foil to the copper foil covered stack any one of preceding paragraph 1~6 Row wired circuit is processed and obtained.
Invention effect
According to the present invention it is possible to provide good with the adhesivity of copper foil, low dielectric property, low water absorbable, heat resistance are also excellent It is good, therefore the high copper foil covered stack of reliability.Furthermore it is possible to manufacture dielectric by using the copper foil covered stack of the present invention The low printed circuit board (PCB) of loss.The copper foil covered stack and printed circuit board (PCB) of the present invention is suitable for manufacture with smart mobile phone, mobile phone For network associated electronic device, the mainframe computer such as the mobile communication equipment of representative or its base station apparatus, server/router etc. Handle the multiwiring board of the product of high-frequency signal.
Embodiment
The copper foil covered stack of the present invention possesses at least unilateral face that dielectric film (1) is layered in via gluing oxidant layer (2) On copper foil (3).The dielectric film (1) of the present invention is just not particularly limited as long as thermal coefficient of expansion is 4~30ppm/ DEG C, Ke Yilie Citing is such as:Polyimides, PEI, aromatic polyamide, polyethylene terephthalate (PET), poly- naphthalene will be included Material of film etc. is made in the composite of naphthalate (PEN), liquid crystal polymer or flexible epoxy/glass cloth etc..Heat When the coefficient of expansion is less than 4ppm/ DEG C or thermal coefficient of expansion and is more than 30ppm/ DEG C, due to the thermal expansion system with the copper foil to be fitted The difference of number (16~18ppm/ DEG C), can produce the problems such as warpage of layered product, adhesivity are reduced.Preferably 13~23ppm/ ℃.In addition, specifically, from the viewpoint of heat resistance, dimensional stability, insulating properties, preferably polyimides.Need explanation , the thermal coefficient of expansion in this specification refers to using thermo-mechanical analysis device (distance between chuck:20mm, coupons width Degree:4mm, load:10mg, heating rate:10 DEG C/min of stretch mode) determine 100 DEG C~200 DEG C of value.
As described above, as dielectric film (1), polyimide film is optimal.Its preparation method can be using known manufacturer Method.That is, using substantial equimolar one or more kinds of tetracarboxylic dianhydride's compositions and one or more diamines into Point, it is polymerize in organic polar solvent, thus obtained polyamic acid polymer solution curtain coating is coated on glass plate, no Become rusty on the supporters such as steel band, by part imidizate or partially dried (following to the polyamide acid film with self-supporting degree Referred to as gel mould) peeled off from supporter, heating is further carried out after end is fixed using methods such as pin, clips so as to by polyamides The complete imidizate of amino acid, thus obtains polyimide film.As commercially available polyimide film, it can enumerate:Japan's weaving strain The XENOMAX (trade name) of formula commercial firm manufacture, the POMIRAN T (trade name) of Arakawa Chemical Industries, Ltd.'s manufacture, east are beautiful The KAPTON (trade name) of Dupont Kabushiki Kaisha's manufacture, the UPILEX (trade name) of Ube Industries, Ltd's manufacture, strain formula meeting Society Zhong Yuan Apical (trade name) etc..
The thickness of dielectric film (1) is not limited, preferably 5 μm~125 μm.Easiness, machinery particularly from making is special Property from the viewpoint of, preferred thickness be 10 μm~75 μm, be preferably 10 μm~50 μm.
Gluing oxidant layer (2) is as long as containing anhydride group end polyimides (A) (hereinafter also referred to " (A) composition ") and being cross-linked into (B) (hereinafter also referred to " (B) composition ") is divided just to be not particularly limited.(A) composition is preferably that aromatic tetracarboxylic acid's acid anhydride (a1) is (following Also referred to as " (a1) composition ") and diamine monomer comprising dimer type diamine (a2) (hereinafter also referred to " (a2) composition ") Reaction product, as long as above-mentioned reaction product, it is possible to without particular limitation using various known materials.
As (a1) composition, it can enumerate for example:Pyromellitic acid dianhydride, 4, the double O-phthalic acid dianhydrides of 4 '-oxygen, 3,3 ', 4,4 '-benzophenone tetracarboxylic dianhydride, 3,3 ', 4,4 '-diphenyl ether tetraformic dianhydride, 3,3 ', 4,4 '-diphenyl sulfone tetraformic acid two Acid anhydride, 1,2,3,4- PMDAs, Isosorbide-5-Nitrae, 5,8- naphthalenetetracarbacidic acidic dianhydrides, 2,3,6,7- naphthalenetetracarbacidic acidic dianhydrides, 3,3 ', 4,4 '- Bibenzene tetracarboxylic dianhydride, 2,2 ', 3,3 '-bibenzene tetracarboxylic dianhydride, 2,3,3 ', 4 '-bibenzene tetracarboxylic dianhydride, 2,3,3 ', 4 '-two Benzophenone tetracarboxylic acid dianhydride, 2,3,3 ', 4 '-diphenyl ether tetraformic dianhydride, 2,3,3 ', 4 '-diphenyl sulfone tetraformic acid dianhydride, 2,2- are double (3,3 ', 4,4 '-tetracarboxylic phenyl) tetrafluoropropane dianhydride, 2,2 '-bis- (3,4- di carboxyl phenyloxy phenyl) sulfone dianhydrides, 2,2- are double Double (3, the 4- dicarboxyphenyi) propane dianhydrides and 4 of (2,3- dicarboxyphenyi) propane dianhydride, 2,2-, 4 '-[propane -2,2- diyl Double (Isosorbide-5-Nitraes-Asia phenoxy group)] double O-phthalic acid dianhydrides etc., can one kind can also combine two or more.
From the viewpoint of solvent soluble, flexibility, adhesivity, heat resistance, (a1) composition is preferably by following formulas The material of expression.
(in formula, X represents singly-bound ,-SO2-、-CO-、-O-、-O-C6H4-C(CH3)2-C6H4- O- or-COO-Y-OCO- (Y tables Show-(CH2)1- (1 represents 1~20) or-H2C-HC (- O-C (=O)-CH3)-CH2-。)。)
(a2) composition be as derived from the dimeric dibasic acid of the dimer as unrighted acids such as oleic acid compound (referring to day This Unexamined Patent 9-12712 publications etc.), can be without particular limitation using various known dimer type diamines.As (a2) commercially available product of composition, can be enumerated for example:Versamine 551 (manufacture of BASF Amada Co., Ltd.s), Versamine 552 (BASF Amada Co., Ltd.s manufactures;Versamine 551 hydride), PRIAMINE1075, PRIAMINE1074 ( Manufactured for He great Amada Co., Ltd.s) etc., it can combine two or more.Hereinafter, one of hydrogenation dimer type diamine is shown.
From the viewpoint of solvent soluble, flexibility, adhesivity, heat resistance, the content of (a2) composition is preferably binary 30 moles of more than % in amine monomers.More preferably 50~100 moles %.
In (A) composition can as needed containing various known diamino polysiloxanes (hereinafter also referred to (a3) into Point).Specifically, it can enumerate for example:α, ω-bis- (2- amino-ethyls) dimethyl silicone polymer, α, ω-bis- (3- aminopropans Base) dimethyl silicone polymer, α, ω-bis- (4- aminobutyls) dimethyl silicone polymer, α, ω-bis- (5- Aminopentyls) poly- diformazan Radical siloxane, α, ω-bis- [3- (2- aminophenyls) propyl group] dimethyl silicone polymer, α, ω-bis- [3- (4- aminophenyls) third Base] dimethyl silicone polymer etc., can one kind can also combine two or more.
Can be (following to be also referred to as containing the diamine in addition to (a1) composition~(a3) composition as needed in (A) composition For (a4) composition).Specifically, it can enumerate for example:Diaminocyclohexane, diamino-dicyclohexyl methane, 3,3 '-diformazan Base -4,4 '-diamino-dicyclohexyl methane, 3,3 ', 5,5 '-tetramethyl -4,4 '-diamino-dicyclohexyl methane, 4,4 '-diamino Base dicyclohexyl propane, the ring of diaminourea two [2.2.1] heptane, double (amino methyl) two ring [2.2.1] heptane, 3 (4), 8 (9)-bis- The ester ring type binary such as (amino methyl) three ring [5.2.1.02,6] decane, 1,3- double aminomethyl cyclohexane, IPDs Amine;Double amino such as 2,2- double [4- (3- amino-benzene oxygens) phenyl] propane, double [4- (4- amino-benzene oxygens) phenyl] propane of 2,2- Phenoxyphenyl propane class;3,3 '-diaminodiphenyl ether, 3,4 '-diaminodiphenyl ether, 4, the diamino such as 4 '-diaminodiphenyl ether Yl diphenyl ether class;The phenylenediamines such as p-phenylenediamine, m-phenylene diamine (MPD);3,3 '-diamino diphenyl sulfide, 3,4 '-diaminourea hexichol Base thioether, 4, the diamino diphenyl sulfide class such as 4 '-diamino diphenyl sulfide;3,3 '-diamino diphenyl sulfone, 3,4 '-two Aminodiphenyl base sulfone, 4, the diamino diphenyl sulfone class such as 4 '-diamino diphenyl sulfone;3,3 '-diaminobenzophenone, 4,4 '- Diaminobenzophenone, 3, the diaminobenzophenone class such as 4 '-diaminobenzophenone;3,3 '-diaminodiphenyl-methane, 4, 4 '-diaminodiphenyl-methane, 3, the diaminodiphenyl-methane class such as 4 '-diaminodiphenyl-methane;2,2- bis- (3- aminobenzenes Base) diamino-phenyl such as propane, 2,2- bis- (4- aminophenyls) propane, 2- (3- aminophenyls) -2- (4- aminophenyls) propane Propane class;2,2- bis- (3- aminophenyls) -1,1,1,3,3,3- HFC-236fa, 2,2- bis- (4- aminophenyls) -1,1,1,3,3, 3- HFC-236fas, 2- (3- aminophenyls) -2- (4- aminophenyls) -1, the diamino-phenyl hexafluoro such as 1,1,3,3,3- HFC-236fa Propane class;1,1- bis- (3- aminophenyls) -1- diphenylphosphino ethanes, 1,1- bis- (4- aminophenyls) -1- diphenylphosphino ethanes, 1- (3- amino Phenyl) the diamino-phenyl diphenylphosphino ethane class such as -1- (4- aminophenyls) -1- diphenylphosphino ethanes;1,3- double (3- amino-benzene oxygens) benzene, Double amino such as 1,3- double (4- amino-benzene oxygens) benzene, Isosorbide-5-Nitrae-bis- (3- amino-benzene oxygens) benzene, Isosorbide-5-Nitrae-bis- (4- amino-benzene oxygens) benzene Phenoxy group benzene class;1,3- double (3- amino benzoyls) benzene, 1,3- double (4- amino benzoyls) benzene, Isosorbide-5-Nitrae-bis- (3- aminobenzenes Formoxyl) double amino benzoyl benzene classes such as benzene, Isosorbide-5-Nitrae-bis- (4- amino benzoyls) benzene;1,3- double (3- amino-α, alpha, alpha-dimethyl Base benzyl) benzene, 1,3- double (4- amino-alpha, alpha-dimethylbenzyl) benzene, Isosorbide-5-Nitrae-bis- (3- amino-alpha, alpha-dimethylbenzyl) benzene, 1, Double amino-dimethyl benzene classes such as double (4- amino-alpha, alpha-dimethylbenzyl) benzene of 4-;1,3- double (3- amino-α, α-two (fluoroforms Base) benzyl) benzene, 1,3- double (4- amino-α, α-two (trifluoromethyl) benzyl) benzene, Isosorbide-5-Nitrae-bis- (3- amino-α, α-two (fluoroforms Base) benzyl) double amino two (trifluoromethyl) benzyl benzene classes such as benzene, Isosorbide-5-Nitrae-bis- (4- amino-α, α-two (trifluoromethyl) benzyl) benzene; 2,6- double (3- amino-benzene oxygens) benzonitriles, double (3- amino-benzene oxygens) pyridines of 2,6-, 4,4 '-bis- (3- amino-benzene oxygens) connection Benzene, 4, the amino-benzene oxygen biphenyl class such as 4 '-bis- (4- amino-benzene oxygens) biphenyl;It is double [4- (3- amino-benzene oxygens) phenyl] ketone, double The aminophenoxy phenyl ketones such as [4- (4- amino-benzene oxygens) phenyl] ketone;It is double [4- (3- amino-benzene oxygens) phenyl] thioethers, double The aminophenoxy phenyl thioether classes such as [4- (4- amino-benzene oxygens) phenyl] thioether;Double [4- (3- amino-benzene oxygens) phenyl] sulfones, The aminophenoxy phenyl sulfone classes such as double [4- (4- amino-benzene oxygens) phenyl] sulfones;It is double [4- (3- amino-benzene oxygens) phenyl] ethers, double The aminophenoxy phenyl ethers such as [4- (4- amino-benzene oxygens) phenyl] ether;2,2- double [4- (3- amino-benzene oxygens) phenyl] third Double [3- (3- amino-benzene oxygens) phenyl] -1 of alkane, 2,2-, the double [4- (4- amino-benzene oxygens) of 1,1,3,3,3- HFC-236fa, 2,2- Phenyl] -1, the aminophenoxy phenyl propane class such as 1,1,3,3,3- HFC-236fa;And double [the 4- (3- amino-benzene oxygens) of 1,3- Benzoyl] benzene, 1,3- double [4- (4- amino-benzene oxygens) benzoyl] benzene, Isosorbide-5-Nitrae-bis- [4- (3- amino-benzene oxygens) benzoyls Base] benzene, Isosorbide-5-Nitrae-bis- [4- (4- amino-benzene oxygens) benzoyl] benzene, 1,3- double [4- (3- amino-benzene oxygens)-α, alpha-alpha-dimethyl benzyl Base] benzene, double [4- (the 4- amino-benzene oxygens)-alpha, alpha-dimethylbenzyl] benzene of 1,3-, Isosorbide-5-Nitrae-bis- [4- (3- amino-benzene oxygens)-α, α- Dimethyl benzyl] benzene, Isosorbide-5-Nitrae-bis- [4- (4- amino-benzene oxygens)-alpha, alpha-dimethylbenzyl] benzene, 4,4 '-bis- [4- (4- aminobenzene oxygen Base) benzoyl] diphenyl ether, 4,4 '-bis- [4- (4- amino-alpha, alpha-dimethylbenzyl) phenoxy group] benzophenone, 4,4 '-it is bis- [4- (4- amino-alpha, alpha-dimethylbenzyl) phenoxy group] diphenyl sulfone, 4,4 '-bis- [4- (4- amino-benzene oxygens) phenoxy group] hexichol Base sulfone, 3,3 '-diaminourea -4,4 '-two phenoxy benzophenones, 3,3 '-diaminourea -4,4 '-bigeminy phenoxy benzophenone, 3, 3 '-diaminourea -4- phenoxy benzophenones, 3,3 '-diaminourea -4- biphenylyloxies benzophenone, 6,6 '-bis- (3- aminobenzene oxygen Base) -3,3,3, ' 3, '-tetramethyl -1,1 '-spirobindene is full, 6,6 '-bis- (4- amino-benzene oxygens) -3,3,3, ' 3, '-tetramethyl - 1,1 '-spirobindene is full, double (3- aminopropyls) tetramethyl disiloxanes of 1,3-, the double silica of (4- aminobutyls) tetramethyl two of 1,3- Alkane, double (amino methyl) ethers, double (2- amino-ethyls) ethers, double (3- aminopropyls) ethers, double (2- aminomethoxies) ethyls] ether, Double (aminomethoxy) ethane of double [2- (2- amino ethoxies) ethyl] ethers, double [2- (3- amino propoxyl group) ethyl] ethers, 1,2-, 1,2- double (2- amino ethoxies) ethane, double [2- (aminomethoxy) ethyoxyl] ethane of 1,2-, double [2- (the 2- amino second of 1,2- Epoxide) ethyoxyl] ethane, double (3- aminopropyls) ethers of ethylene glycol, double (3- aminopropyls) ethers of diethylene glycol, triethylene glycol be double (3- aminopropyls) ether, ethylenediamine, 1,3- diaminopropanes, 1,4-Diaminobutane, 1,5- 1,5-DAPs, 1,6- diaminourea Hexane, 1,7- diaminoheptanes, 1,8- diamino-octanes, 1,9- diamino nonanes, 1,10- diamino decanes, 1,11- diaminourea Hendecane, 1,12- diamino dodecanes etc., can be combined two or more.
(a1) composition (sour composition) and (a2) composition~(a4) composition (amine component) mol ratio [(a1)/[(a2)+(a3)+ (a4)]] it is not particularly limited, goes out from the viewpoint of the balance of adhesivity, heat-resisting adhesivity, flowing controlling and low dielectric property Hair, typically about 0.9~about 1.25, preferably from about 0.9~about 1.15.
(a2) ratio of each composition in composition~(a4) composition is not particularly limited, from heat-resisting adhesivity, adhesivity, stream From the viewpoint of the balance of dynamic controlling and low dielectric property, generally, [(a2)/[(a2)+(a3)+(a4)]] is about 10 moles of % ~about 100 moles of %, it is preferably from about 30 moles of %~about 100 mole %, [(a3)/[(a2)+(a3)+(a4)]] is about 0 to rub Your %~about 50 mole %, it is preferably from about 0 mole of %~about 5 mole %, [(a4)/[(a2)+(a3)+(a4)]] is about 0 to rub You are %~about 90 mole %, preferably from about 0 mole of %~about 70 mole %.
(A) composition can be manufactured by various known methods.For example, by (a1) composition and (a2) composition and according to (a3) composition and (a4) composition needed to use enters at a temperature of normally about 60 DEG C~about 120 DEG C (preferably 80 DEG C~100 DEG C) The sudden reaction of row normally about 0.1 hour~about 2 hours (preferably 0.1 hour~0.5 hour).Then, resulting addition polymerization is made Product is further carried out about 0.5 hour~about 50 hours at a temperature of about 80 DEG C~about 250 DEG C, preferably 100 DEG C~200 DEG C Imidization reaction, the i.e. dehydration closed-loop reaction of (preferably 1 hour~20 hours).In addition, during these reactions, can use Solvent described later, particularly aprotic polar solvent are used as reaction dissolvent.
It should be noted that in imidization reaction, can use various known catalysts, dehydrating agent and after The solvent stated.As catalysts, it can enumerate:The aromatic nitrile bases such as the aliphatic tertiary amine such as triethylamine class, dimethylaniline Hetero ring type tertiary amines such as class, pyridine, picoline, isoquinolin etc., can be combined two or more., can be with addition, as dehydrating agent Enumerate for example:Aromatic anhydrides such as the aliphatic anhydrides such as acetic anhydride, benzoyl oxide etc., can be combined two or more.
As reaction dissolvent, it can enumerate:METHYLPYRROLIDONE, DMA, gamma-butyrolacton, ring Hexanone, hexahydrotoluene, toluene, dimethylbenzene, hexone, glycol dimethyl ether, diethylene glycol dimethyl ether, dipropyl two The organic polar solvents such as alcohol dimethyl ether.These organic polar solvents can be used alone, and can also be used in mixed way a variety of.
(A) the imide ring closure rate of composition is not particularly limited, usually more than 70%, be preferably 85%~100%. This, " imide ring closure rate " refers to the content (similarly hereinafter) of the cyclic imide key in (A) composition, can be for example, by NMR, IR points The various spectrum means such as analysis are determined.
(A) physical property of composition is not particularly limited, from adhesivity, heat-resisting adhesivity, flowing controlling and low dielectric property Balance from the viewpoint of, usual number-average molecular weight (refers to the polystyrene scaled value obtained using gel permeation chromatography.Under It is together) about 5000~about 50000, (softening point refers to using commercially available analyzer (" ARES-2KSTD-FCO- softening point STD ", Rheometric Scientfic companies manufacture) determine viscoplasticity distribution map in modulus of rigidity start reduction temperature.Under It is about 30 DEG C~about 160 DEG C together).(A) concentration of the end anhydride group of composition is also not particularly limited, typically about 5000~about 20000eq/g。
For (A) composition, in order to show higher adhesivity, heat resistance, dielectric property, it will can change (a1)~(a4) two or more (A) compositions after the species and ratio of composition are used in mixed way.The species number of (A) that is mixed Amount, blending ratio are arbitrary.
(B) composition can be not particularly limited using various known materials.Wherein, from the sight of heat resistance, adhesivity Point sets out, preferably polyphenylene oxide resin, epoxy resin, benzoPiperazine resin, bimaleimide resin and cyanate ester resin, its In, from the viewpoint of dielectric property, the more preferably combination of polyfunctional epoxy resin and cyanate ester resin.
Polyphenylene oxide resin can be not particularly limited using various known polyphenylene oxide resins.Specifically, it is preferably The polyphenylene oxide resin represented by following formulas.
(in formula, Z2Alkylidene or singly-bound that carbon number is 1~3 are represented, m represents that 0~20, n represents 0~20, m's and n It is total to represent 1~30.)
It is not particularly limited as the characteristic of polyphenylene oxide resin, from the viewpoint of adhesive tension and low dielectric property, end Hydroxyl concentration is that about 900~about 2500 μm of ol/g, number-average molecular weight are about 800~about 2000.
On epoxy resin, it can enumerate for example:Phenol novolak type epoxy resin, cresol novolak type epoxy tree Fat, bisphenol A type epoxy resin, bisphenol f type epoxy resin, bisphenol-s epoxy resin, bisphenol-A epoxy resin, hydrogenation are double Phenol F types epoxy resin, Stilbene-based epoxy resin, the epoxy resin of the skeleton containing triazine, the epoxy resin containing fluorene skeleton, chain Aliphatic epoxy resin, alicyclic epoxy resin, glycidyl amine type epoxy resin, three oxybenzene methylmethane type epoxy resin, alkane Base be modified three oxybenzene methylmethane type epoxy resin, biphenyl type epoxy resin, the epoxy resin of the skeleton containing dicyclopentadiene, containing naphthalene The epoxy resin of skeleton, aryl alkene fundamental mode epoxy resin, four glycidyl group benzene dimethylamine, these epoxy resin are utilized two Modified epoxy, dimer acid diglycidyl ester etc., can be combined two or more obtained from polyacids are modified.In addition, conduct Commercially available product, can be enumerated for example:" jER828 ", " jER834 ", " jER807 " of Mitsubishi chemical Co., Ltd's manufacture, " ST-3000 " of the manufacture of " jER630 ", Nippon Steel Chemical Co., Ltd, Daisel chemical industry Co., Ltd manufacture " YD-172-X75 " of the manufacture of " Celloxide2021P ", Nippon Steel Chemical Co., Ltd etc..
Wherein, from the viewpoint of adhesivity, heat-resisting adhesivity and flowing controlling, the four of preferably following structures shrink sweet Oil base benzene dimethylamine, the commercially available product such as " Tetrad-X " that Mitsubishi Gas Chemical Co., Ltd can be used to manufacture.
(in formula, Z3Represent phenylene or cyclohexenyl group.)
It should be noted that in the case of using epoxy resin, various known epoxy resin solidifications can be used together Agent.Specifically, except various polyphenylene oxide resins described later, benzoPiperazine resin, bimaleimide resin and cyanate resin Beyond fat, it can also enumerate:Succinic anhydride, phthalic anhydride, maleic anhydride, trimellitic anhydride, pyromellitic dianhydride, hexahydro are adjacent Phthalate anhydride, 3- methylhexahydrophthalic anhydrides, 4- methylhexahydrophthalic anhydrides or 4- methyl hexahydro O-phthalics The mixture of acid anhydrides and hexahydrophthalic anhydride, tetrabydrophthalic anhydride, methyl tetrahydrophthalic anhydride, nadic acid Acid anhydride, methylnadic anhydride, norbornane -2,3- dicarboxylic acid anhydride, methyl norbornane -2,3- dicarboxylic acid anhydride, methylcyclohexene The acid anhydride type curing agents such as dicarboxylic acid anhydride, 3- dodecenyl succinic anhydrides, octenyl succinic acid anhydride;Dicyandiamide (DICY), fragrance Race's diamine (trade name " LonzacureM-DEA ", " LonzacureM-DETDA " etc..It is Long Sha Amada Co., Ltd.s system Make), the amine curing agent such as aliphatic amine;Phenol resol resins, cresol novolac resin, bisphenol A-type novolaks tree Fat, triazine modified phenol novolac resin, the trade name " SPH- of the phosphonitrile (Otsuka Chemical Co., Ltd manufacture of phenolic hydroxy group 100 " etc.) phenols curing agent, the cyclic phosphazene class compound such as;The rosin crosslinking agent such as maleic acid modified rosin or its hydride Deng.Wherein, preferred cyanate ester resin.In addition, the usage amount of hardener for epoxy resin is not particularly limited, generally, relative to The weight % of solid constituent 100 of the adhesive compound of the present invention, is about 0.1~about 50 weight %, preferably from about 1~about 40 weight Measure %.
In addition, as hardener for epoxy resin, the polyphenylene ether compound represented by above-mentioned chemical formula 5 can also be used.
On benzoPiperazine resin, can be enumerated for example:6,6- (1- methyl ethylidene) it is double (3,4- dihydro -3- phenyl - 2H-1,3- benzoPiperazine), double (3,4- dihydro -3- methyl -2H-1, the 3- benzos of 6,6- (1- methyl ethylidene)Piperazine) etc., can It is two or more to combine.It should be noted thatPhenyl, methyl, cyclohexyl etc. can be bonded on the nitrogen of piperazine ring.In addition, making For commercially available product, it can enumerate for example:" the benzo of Shikoku Chem's manufacturePiperazine F-a types ", " benzoPiperazine P-d Type ", " RLV-100 " of the manufacture of Air Water companies etc..
On bimaleimide resin, it can enumerate for example:4,4 '-diphenyl methane BMI, a sub- benzene Base BMI, bisphenol-A diphenyl ether BMI, 3,3 '-dimethyl -5,5 '-diethyl -4,4 '-diphenyl Methane BMI, 4- methyl isophthalic acids, 3- phenylenes BMI, 1,6 '-dimaleoyl imino-(2,2,4- tri- Methyl) hexane, 4,4 '-diphenyl ether BMI, 4,4 '-diphenyl sulfone BMI etc. can combine two kinds More than.In addition, as commercially available product, can enumerate such as " BAF-BMI " that JFE KCCs manufacture.
On cyanate ester resin, it can enumerate for example:2- chavicols cyanate, 4- metoxyphenols cyanate, 2, Double (the 4- cyanatos phenol) -1 of 2-, 1,1,3,3,3- HFC-236fa, bisphenol A cyanate, diallyl bisphenol cyanate, 4- benzene Base phenol cyanate, 1,1,1- tri- (4- cyanatophenyls) ethane, 4- cumyl phenols cyanate, 1,1- are double (4- cyanatophenyls) Double (4- cyanatophenyls) propane of ethane, 4,4 '-bis-phenol cyanate and 2,2- etc., can be combined two or more.In addition, being used as city Product are sold, can be enumerated for example:" PRIMASET BTP-6020S (manufacture of Long Sha Amada Co., Ltd.s) ", " PRIMASET PT-30 (manufacture of Long Sha Amada Co., Ltd.s) " etc..
Furthermore it is also possible to which curing catalysts are used together with (B) composition.Specifically, it can enumerate for example:1,8- bis- Carbon -7- the alkene of azabicyclic [5.4.0] 11, triethylenediamine, benzyldimethylamine, 2,4, triethanolamine, dimethylaminoethanol, The tertiary amines such as three (dimethylaminomethyl) phenol;
2-methylimidazole, 2- phenylimidazoles, 2- phenyl -4-methylimidazole, 2-ethyl-4-methylimidazole, 1- cyanoethyls -2- The imidazoles such as undecyl imidazole, 2- heptadecyl imidazoles;
Organic phosphines such as tributylphosphine, methyldiphenyl base phosphine, triphenylphosphine, diphenylphosphine, Phenylphosphine;
TetraphenylTetraphenyl borate salts, 2-ethyl-4-methylimidazole tetraphenyl borate salts, N-methylmorpholine tetraphenyl boron The tetraphenyl boron salt such as hydrochlorate;Zn, Cu and Fe's of the organic acids such as octanoic acid, stearic acid, acetylacetone,2,4-pentanedione, aphthenic acids and salicylic acid etc. has Machine metal salt;
Benzoyl peroxide, methyl ethyl ketone peroxide, cyclohexanone peroxide, lauroyl peroxide, di-tert-butyl peroxide, Radical initiators such as peroxidized t-butyl perbenzoate, cumene hydroperoxide, dicumyl peroxide etc.;
It can combine two or more.In addition, the usage amount of the catalyst is not particularly limited, generally, by the present invention's It is about 0.01~about 5 weight % when the solid constituent of adhesive compound is set to 100 weight %.
(B) usage amount of composition is not particularly limited, generally, relative to the parts by weight of (A) composition 100, by solid constituent weight Amount is scaled about 3~about 30 parts by weight, is preferably from about 5~about 15 parts by weight.
It can contain in addition to above-mentioned (A) composition and (B) composition in the adhesive compound for forming gluing oxidant layer (2) Organic solvent., can be without particular limitation using various known solvents as organic solvent.It is used as concrete example, Ke Yilie Citing is such as:METHYLPYRROLIDONE, dimethylformamide, dimethyl acetamide, dimethyl sulfoxide (DMSO), N- methyl caprolactams, The ester ring type such as the aprotic polar solvents such as TRIGLYME, diethylene glycol dimethyl ether, cyclohexanone, hexahydrotoluene solvent, The fragrance such as the alcohols solvents such as methanol, ethanol, propyl alcohol, phenmethylol, cresols, toluene same clan solvent etc., can be combined two or more.
Can coordinate as needed in the adhesive compound for forming gluing oxidant layer (2) esterification by ring opening catalysts, Dehydrating agent, plasticizer, weather resisting agent, antioxidant, heat stabilizer, lubricant, antistatic agent, brightening agent, colouring agent, conductive agent, Releasing agent, surface conditioning agent, viscosity modifier, phosphonium flame retardant, fire-retardant filler, silica filler and fluorine-containing filler etc. are added Agent.
Adhesive compound can also containing reactive polyglycidyl compounds (C) (hereinafter also referred to (C) into Point.).As (C) composition, it is not particularly limited, can enumerates for example by formula:Q-Si(R1)a(OR2)3-a(in formula, Q represents bag Group containing the functional group reacted with anhydride group, R1It is 1~8 alkyl, R to represent hydrogen or carbon number2It is 1 to represent carbon number ~8 alkyl, a represents 0,1 or 2) silyl compound of expression etc..It is used as reactive functional groups contained in Q, Ke Yilie Lift amino, epoxy radicals and sulfydryl etc..
(C) composition is utilized, can be adjusted while the low dielectric property of cured layer of adhesive of the present invention is kept Save its melt viscosity.As a result it can press down while interfacial adhesion (the so-called anchoring effect) of the cured layer and base material is improved Make oozing out and (operation being referred to as flowing control sometimes below) from the cured layer of base material end generation.
As the compound that the functional group in Q is amino, it can enumerate for example:N-2- (amino-ethyl) -3- aminopropyls Methyl dimethoxysilane, N-2- (amino-ethyl) -3- TSL 8330s, 3- aminopropyl trimethoxy silicon Alkane, APTES and 3- ureidopropyltrialkoxysilanes etc..
As the compound that the functional group in Q is epoxy radicals, it can enumerate for example:2- (3,4- epoxycyclohexyl) ethyl three Methoxy silane, 3- glycidoxypropyls dimethoxysilane, 3- glycidoxypropyltrime,hoxysilanes, 3- rings Oxygen propoxypropyl methyldiethoxysilane and 3- glycidoxypropyl group triethoxysilanes etc..
As the compound that the functional group in Q is sulfydryl, it can enumerate for example:3-mercaptopropyi trimethoxy silane, 3- Mercaptopropyltriethoxysilane, 3- mercaptopropyis methyl dimethoxysilane and 3- mercaptopropyi methyldiethoxysilanes Deng.
Dielectric constant under the 10GHz of gluing oxidant layer (2) is not particularly limited, and usually less than 3.0, dielectric loss angle is just Cut preferably less than 0.005.Thus, copper foil covered stack of the invention can be suitable for suppressing transmission loss.More preferably It is that dielectric constant is 1.5~2.9, dielectric loss angle tangent is less than 0.0005~0.004.
10 mean roughness (Rz) in the face contacted with gluing oxidant layer (2) of copper foil (3) are as long as 0.1 μm~1.5 μm Just it is not particularly limited, such as rolled copper foil, electrolytic copper foil can be enumerated.So-called 10 mean roughness (Rz) refer to herein The average value from the up to absolute altitude on the 5th high mountain top is represented with micron in the part that datum length is extracted from cross section curve And from most deep to the absolute altitude of the 5th deep the lowest point average value difference value.In addition, its thickness is also not particularly limited, it is usually About 1 μm~about 100 μm, preferably from about 2 μm~about 38 μm.In addition, the copper foil can be implement it is various surface treatment it is (coarse Change, antirust etc.) after copper foil.As antirust treatment, it can enumerate at the plating using the plating solution containing Ni, Zn, Sn The so-called mirror-polishing processing such as reason, chromic acid salt treatment.
The copper foil covered stack of the present invention is obtained in the following way:Above-mentioned adhesive compound is coated on into base material to go forward side by side Row drying and the gluing oxidant layer (2) for forming the state of being uncured or partially cured, another base material of then fitting, then to adhesive Layer (2) carries out solidify afterwards.The base material of coating binder composition and the base material fitted afterwards can be dielectric film (1), copper foil (3) Any one of.
The coating method of gluing oxidant layer (2) can use brushing, dip-coating, spraying, comma scraper coating, blade coating, mouth mold formula The methods such as coating, die lip coating, roller coat, curtain coating.
Drying means can be used at preferably 40 DEG C~250 DEG C, more preferably 70 DEG C~170 DEG C, about 2 minutes~about 15 minutes Under conditions of pass through the methods of the stoves such as heated-air drying, FAR INFRARED HEATING, high-frequency induction heating.
Applying method can be used carries out layer of rolls at a temperature of preferably 40 DEG C~250 DEG C, more preferably 50 DEG C~200 DEG C Pressure, the method for hot pressing.
Solidify afterwards can use 120 degree~250 degree temperature, preferably 70 DEG C~200 DEG C, about 30 minutes~about 48 hours Under conditions of pass through the methods of the stoves such as heated-air drying, FAR INFRARED HEATING, high-frequency induction heating.
In view of adhesivity, heat resistance, the easiness of coating, the danger of dissolvent residual, the thickness of gluing oxidant layer (2) is excellent Elect about 1 μm~about 70 μm as.
It is also the present invention by the printed circuit board obtained from the copper-clad surface of copper foil covered stack formation circuit pattern One of.As the method for forming circuit pattern, such as subtractive process, semi-additive process can be enumerated.As semi-additive process, it can enumerate Such as following method:The copper-clad surface of the copper foil covered stack of the present invention is patterned using resist film, electricity is then carried out Copper facing, removes resist, and be etched using alkali lye.In addition, the thickness of the circuit pattern layer in the printed wiring board does not have It is particularly limited to.
Embodiment
Hereinafter, the present invention is specifically illustrated by embodiment and comparative example, but the scope of the present invention is not by it Limit.In addition, in each example, unless otherwise specified, part and % are weight basis.It should be noted that number-average molecular weight It is the value obtained using commercially available measuring machine (" HLC-8220GPC ", TOSOH Co., Ltd manufacture), in addition, glass transition temperature Degree is the value obtained using commercially available analyzer (" DSC6200 ", Seiko instrument Co., Ltd. manufacture).
<(A) the nonvolatile component content of composition>
The solution 1g of (A) composition is weighed, is dried 60 minutes using 180 DEG C of circulated air drying machines, before and after drying Weight, nonvolatile component content is calculated using formula 1.
(formula 1)=(dried weight (g))/(weight (g) before drying) × 100 (%)
Production Example 1
In the reaction vessel for possessing mixer, water knockout drum, thermometer and nitrogen ingress pipe, commercially available aromatic series four is put into Carboxylic acid dianhydride (trade name " BTDA-UP ", the manufacture of Ying Chuan Amada Co., Ltd.s;3,3 ', 4,4 '-benzophenone tetracarboxylic dianhydride Content be more than 99.8%) 210.0g, cyclohexanone 1008.0g, hexahydrotoluene 201.6g, solution is heated to 60 DEG C.Then, Dropwise addition hydrogenation dimer type diamine (trade name " PRIAMINE 1075 ", the manufacture of He great Amada Co., Ltd.s) 341.7g, then Imidization reaction was carried out with 10 hours at 140 DEG C, thus obtains that softening point is about 80 DEG C and weight average molecular weight is 35,000 The solution (nonvolatile component content 33.9%) of polyimide resin (A-1).It should be noted that in whole diamine monomers The content of dimer type diamine is 100 moles of %, and the mol ratio of sour composition/amine component is 1.03.
Production Example 2
In the reaction vessel same with Production Example 1, commercially available aromatic tetracarboxylic acid's dianhydride (trade name is put into " BisDA1000 ", Ying Chuan Amada Co., Ltd.s manufacture;The adjacent benzene of 4,4 '-[propane -2,2- diyl is double (Isosorbide-5-Nitrae-phenylene epoxide)] two The content of diformazan acid dianhydride is 98.0%) 297.8g, cyclohexanone 818.95g, hexahydrotoluene 136.49g, and solution is heated to 60℃.Then, the double aminomethyl cyclohexane 24.83g of the 200.28g of PRIAMINE 1075 and 1,3- are added dropwise, then 140 DEG C with Carry out imidization reaction within 10 hours, thus obtain the polyimides that softening point is about 100 DEG C and weight average molecular weight is 28,000 (A-2) solution (nonvolatile component content 32.2%).It should be noted that the dimer type binary in whole diamine monomers The content of amine is 68 moles of %, and the mol ratio of sour composition/amine component is 1.05.
Production Example 3
In the reaction vessel for possessing mixer, water knockout drum, thermometer and nitrogen ingress pipe, commercially available aromatic series four is put into Carboxylic acid dianhydride (trade name " BisDA1000 ", the manufacture of Ying Chuan Amada Co., Ltd.s;4, the 4 '-[double (Isosorbide-5-Nitraes-Asia of propane -2,2- diyl Phenyl epoxide)] contents of two O-phthalic acid dianhydrides is 98.0%) 200.00g, cyclohexanone 700.00g, hexahydrotoluene 175.00g, 60 DEG C are heated to by solution.Then, hydrogenation dimer type diamine (trade name " PRIAMINE 1075 ", standing grain is added dropwise Big Amada Co., Ltd.'s manufacture) 190.54g, imidization reaction then was carried out with 10 hours at 140 DEG C, softening point is thus obtained It is the solution (nonvolatile component content 30.2%) for the polyimide resin (A-3) that about 80 DEG C and weight average molecular weight are 22,000. It should be noted that the content of the dimer type diamine in whole diamine monomers is 100 moles of %, sour composition/amine component Mol ratio be 1.03.
Production Example 4
In the reaction vessel same with Production Example 1, commercially available aromatic tetracarboxylic acid's dianhydride (trade name " BTDA- is put into PF ", the manufacture of Ying Chuan Amada Co., Ltd.s;3,3 ', 4, the content of 4 '-benzophenone tetracarboxylic dianhydride is 98%) 190.0g, hexamethylene Ketone 277.5g, hexahydrotoluene 182.4g, 60 DEG C are heated to by solution.Then, PRIAMINE 1075277.5g and α is added dropwise, ω-bis- (3- aminopropyls) dimethyl silicone polymer (trade name " KF-8010 ", Shin-Etsu Chemial Co., Ltd's manufacture) 23.8g, then carried out imidization reaction at 140 DEG C with 10 hours, and it is about 70 DEG C and weight average molecular weight thus to obtain softening point For the solution (nonvolatile component content 30.8%) of 18,000 polyimides (A-4).It should be noted that whole diamine lists The content of dimer type diamine in body is that 95 moles of %, the mol ratio of sour composition/amine component are 1.09.
Coordinating example 1
By the solution 10.20g of (A-1) composition, the solution 10.74g of (A-2) composition, the solution 5.72g of (A-3) composition, work For the N of (B) composition, N- diglycidyl -4- glycidyl-oxyanilines (trade name " jER630 ", Mitsubishi Chemical's strain formula Commercial firm manufactures) methyl ethyl ketone solution of 0.27g and cyanate ester resin (trade name " TA ", the manufacture of gas Co., Ltd. of Mitsubishi Chemical) (nonvolatile component content 40%) 0.48g, N-2- (amino-ethyl) -3- TSL 8330s (trade name " KBM- 603 ", Shin-Etsu Chemial Co., Ltd manufacture) toluene solution (nonvolatile component content 10%) 0.18g, as dilute it is molten The toluene 2.81g mixing of agent, so as to obtain the adhesive compound that nonvolatile component content is 30.0%.It should be noted that (A) content of the dimer type diamine in the whole diamine monomers used in composition synthesis is 87.2 moles of %.
Coordinating example 2~13, compare coordinating example 1
Adhesive compound has been obtained with the composition shown in table 1 or table 2.
Compare coordinating example 2
Adhesive compound is used as using carboxyl NBR (trade name " XER-32C ", JSR Corp. manufacture).
Compare coordinating example 3
Adhesive group is used as using acrylic elastomer (trade name " SG-708-6 ", Nagase chemical Co., Ltd manufacture) Compound.
<The making of copper foil covered stack>
Embodiment 1~13, comparative example 1~3
Coordinating example 1~13 is coated on rolling copper with the adhesive compound for comparing coordinating example 1~3 using gap coating machine Paper tinsel (trade name " GHF5 ", the manufacture of JX metals Co., Ltd., 10 mean roughness (Rz):0.45 μm) cause dried thickness For 12 μm, then dried 10 minutes at 150 DEG C, thus obtain the copper foil of resin.Using the copper foil of the two panels resin, with glue Stick face is the mode of inner side, is clipped in the polyimide film (trade name " KAPTON after carrying out dehumidifying in 10 minutes at 120 DEG C 100EN ", the manufacture of Dong Li Dupont Kabushiki Kaisha;25 μm of thickness;Thermal coefficient of expansion;15ppm/ DEG C) between, under 170 DEG C, 3MPa 30 minutes heat laminations are carried out, copper foil covered stack is thus obtained.
Comparative example 4
As the copper foil covered stack of not gluing oxidant layer, the R-F705 that Panasonic manufactures has been used (in Kuraray strain formula meeting The LCP " Vecstar " of the society's manufacture two-sided material obtained from 300 DEG C of laminated rolled copper foils).
Comparative example 5
As the copper foil covered stack of not gluing oxidant layer, the R-F775 that Panasonic manufactures has been used (in the emerging production strain formula in space portion The polyimides " Upilex-VT " of commercial firm's manufacture is (by thermoplastic polyimide layer/non-thermal plasticity polyimide layer/thermoplastic poly Three layers of imide layer composition) the two-sided material obtained from 300 DEG C of laminated rolled copper foils).
<The dielectric constant of gluing oxidant layer and the measure of dielectric loss angle tangent>
To fluorine resin PFA square positions (diameter 75mm, Sogo Corporation's Physicochemical nitre make manufactured) injection about 7g The adhesive compound of coordinating example 1~13,30 DEG C × 10 hours, 70 DEG C × 10 hours, 100 DEG C × 6 hours, it is 120 DEG C × 6 small When, 150 DEG C × 6 hours, solidified under conditions of 180 DEG C × 12 hours, thus obtain the solidfied material piece of about 300 μm of thickness. Then, commercially available Dielectric Coefficient device (cavity resonator type, AET systems are used according to JIS C2565 to the solidfied material piece Make) determine 10GHz under dielectric constant and dielectric loss angle tangent.The physics value for comparing coordinating example 1~5 with reference to catalogue Value.Result (similarly hereinafter) is shown in Tables 1 and 2.
<Adhesive test>
To the copper foil covered stack of embodiment 1~13, according to JIS C-6481, (flexible printing wiring board is folded with copper foil covered Plate test method) determine peel strength (N/mm).The physics value of comparative example with reference to catalogue value.
<Solder heat resistance is tested>
For embodiment 1~13 and the copper foil covered stack of comparative example 1~5, with copper in 288 DEG C of solder bath after solidification Paper tinsel laterally under mode suspend 30 seconds, confirmation whether there is cosmetic variation.Situation without change is determined as zero, there will be foaming, The situation of expansion is determined as ×.
<The making of circuit evaluation printed wiring board>
To embodiment 1~13 and the copper foil covered stack of comparative example 1~5, Resist patterns is formed.Then, dipping is passed through Copper foil is etched in the ferric chloride in aqueous solution of concentration 40%, the copper circuit that line length is 10cm is thus produced.
<Transmission loss is determined>
For embodiment 1~13 and the circuit evaluation printed wiring board of comparative example 1~5, network analyser (commodity are used Name " E8363B ", Keysight Technologies manufactures), make impedance consistent with 50 Ω, determine 10GHz insertion (transmission) S21 is lost.
[table 2]
The usage amount of each composition in ※ tables shows (unit strictly according to the facts:g).
※1:(A) weight average molecular weight of composition:(A-1)-35000、(A-2)-28000、(A-3)-22000、(A-4)- 18000
※2:The manufacture of GHF5-JX metals Co., Ltd., 10 mean roughness (Rz):0.45μm
BHFX changes the manufacture of-JX metals Co., Ltd., 10 mean roughness (Rz):0.90μm
※3:The dielectric constant and dielectric loss angle tangent of gluing oxidant layer are shown in embodiment 1~13.

Claims (7)

1. a kind of copper foil covered stack, it is to possess to be layered at least unilateral face of dielectric film (1) via gluing oxidant layer (2) Copper foil (3) copper foil covered stack, it is characterised in that
The thermal coefficient of expansion of dielectric film (1) is 4~30ppm/ DEG C,
Gluing oxidant layer (2) contains anhydride group end polyimides (A) and crosslinking component (B), anhydride group end polyimides (A) it is the reaction product of aromatic tetracarboxylic acid's acid anhydride and the diamine monomer comprising dimer type diamine,
10 mean roughness (Rz) in the face contacted with gluing oxidant layer (2) of copper foil (3) are 0.1 μm~1.5 μm.
2. copper foil covered stack as claimed in claim 1, wherein, the content of dimer type diamine is in diamine monomer 30 moles of more than %.
3. copper foil covered stack as claimed in claim 1 or 2, wherein, aromatic tetracarboxylic acid's acid anhydride is represented by following formulas Material,
In formula, X represents singly-bound ,-SO2-、-CO-、-O-、-O-C6H4-C(CH3)2-C6H4- O- or-COO-Y-OCO-,
Y represents-(CH2)l- or-H2C-HC (- O-C (=O)-CH3)-CH2-,
L represents 1~20.
4. such as copper foil covered stack according to any one of claims 1 to 3, wherein, crosslinking component (B) is selected from by polyphenylene oxide Resin, epoxy resin, benzoAt least one of group that piperazine resin, bimaleimide resin and cyanate ester resin are constituted.
5. such as copper foil covered stack according to any one of claims 1 to 4, wherein, gluing oxidant layer (2) is also containing reactive alkane Epoxide silyl compound (C).
6. such as copper foil covered stack according to any one of claims 1 to 5, wherein, Jie under the 10GHz of gluing oxidant layer (2) Electric constant is less than 3.0, and dielectric loss angle tangent is less than 0.005.
7. a kind of printed wiring board, it is carried out by the copper foil to copper foil covered stack according to any one of claims 1 to 6 Wired circuit is processed and obtained.
CN201710008965.9A 2016-01-05 2017-01-05 Copper foil covered stack and printed wiring board Pending CN107009697A (en)

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Application publication date: 20170804