JP5046927B2 - 表面処理銅箔及びその表面処理銅箔の製造方法並びに極薄プライマ樹脂層付表面処理銅箔 - Google Patents
表面処理銅箔及びその表面処理銅箔の製造方法並びに極薄プライマ樹脂層付表面処理銅箔 Download PDFInfo
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- JP5046927B2 JP5046927B2 JP2007521274A JP2007521274A JP5046927B2 JP 5046927 B2 JP5046927 B2 JP 5046927B2 JP 2007521274 A JP2007521274 A JP 2007521274A JP 2007521274 A JP2007521274 A JP 2007521274A JP 5046927 B2 JP5046927 B2 JP 5046927B2
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- copper foil
- resin
- treated copper
- coupling agent
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims description 257
- 229920005989 resin Polymers 0.000 title claims description 245
- 239000011347 resin Substances 0.000 title claims description 245
- 239000011889 copper foil Substances 0.000 title claims description 220
- 238000004519 manufacturing process Methods 0.000 title claims description 62
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 192
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 118
- 229910052759 nickel Inorganic materials 0.000 claims description 97
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 94
- 238000000034 method Methods 0.000 claims description 50
- 238000007788 roughening Methods 0.000 claims description 38
- 239000004760 aramid Substances 0.000 claims description 33
- 229920003235 aromatic polyamide Polymers 0.000 claims description 33
- 239000011342 resin composition Substances 0.000 claims description 27
- 239000003822 epoxy resin Substances 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 24
- 229920000647 polyepoxide Polymers 0.000 claims description 24
- 229920000642 polymer Polymers 0.000 claims description 24
- 239000002904 solvent Substances 0.000 claims description 22
- 238000004381 surface treatment Methods 0.000 claims description 22
- 239000004695 Polyether sulfone Substances 0.000 claims description 18
- 238000001035 drying Methods 0.000 claims description 18
- 229920006393 polyether sulfone Polymers 0.000 claims description 18
- 230000015572 biosynthetic process Effects 0.000 claims description 16
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- 230000000694 effects Effects 0.000 claims description 14
- 239000003795 chemical substances by application Substances 0.000 claims description 13
- 239000007787 solid Substances 0.000 claims description 12
- 239000000758 substrate Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
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- 239000005060 rubber Substances 0.000 claims description 8
- 238000010030 laminating Methods 0.000 claims description 6
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- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 claims description 4
- 239000004593 Epoxy Substances 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 310
- 229910052718 tin Inorganic materials 0.000 description 92
- 239000000243 solution Substances 0.000 description 82
- 230000000052 comparative effect Effects 0.000 description 53
- 239000011888 foil Substances 0.000 description 45
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 44
- 230000006866 deterioration Effects 0.000 description 40
- 238000005259 measurement Methods 0.000 description 38
- 229910052802 copper Inorganic materials 0.000 description 37
- 239000010949 copper Substances 0.000 description 37
- 230000008569 process Effects 0.000 description 35
- 238000005530 etching Methods 0.000 description 34
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 31
- 238000007747 plating Methods 0.000 description 30
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 27
- 239000000203 mixture Substances 0.000 description 26
- 230000002265 prevention Effects 0.000 description 26
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 24
- 239000010408 film Substances 0.000 description 24
- 238000010438 heat treatment Methods 0.000 description 23
- 239000011651 chromium Substances 0.000 description 22
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- 239000003792 electrolyte Substances 0.000 description 18
- 229910052751 metal Inorganic materials 0.000 description 18
- 239000002184 metal Substances 0.000 description 18
- 239000007788 liquid Substances 0.000 description 17
- 238000005868 electrolysis reaction Methods 0.000 description 16
- 229910001128 Sn alloy Inorganic materials 0.000 description 15
- CLDVQCMGOSGNIW-UHFFFAOYSA-N nickel tin Chemical compound [Ni].[Sn] CLDVQCMGOSGNIW-UHFFFAOYSA-N 0.000 description 15
- 229910000679 solder Inorganic materials 0.000 description 14
- 230000003746 surface roughness Effects 0.000 description 13
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 12
- 238000004140 cleaning Methods 0.000 description 10
- BGTOWKSIORTVQH-UHFFFAOYSA-N cyclopentanone Chemical compound O=C1CCCC1 BGTOWKSIORTVQH-UHFFFAOYSA-N 0.000 description 10
- 238000000691 measurement method Methods 0.000 description 10
- 239000003921 oil Substances 0.000 description 10
- 238000012360 testing method Methods 0.000 description 10
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 9
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- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 7
- 229920003986 novolac Polymers 0.000 description 7
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- 238000003756 stirring Methods 0.000 description 6
- 241000080590 Niso Species 0.000 description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 5
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 5
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 5
- 238000000151 deposition Methods 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 5
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 description 5
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 description 5
- 230000010287 polarization Effects 0.000 description 5
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- 239000011701 zinc Substances 0.000 description 5
- 229910000531 Co alloy Inorganic materials 0.000 description 4
- QZYDAIMOJUSSFT-UHFFFAOYSA-N [Co].[Ni].[Mo] Chemical compound [Co].[Ni].[Mo] QZYDAIMOJUSSFT-UHFFFAOYSA-N 0.000 description 4
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- ZIXLDMFVRPABBX-UHFFFAOYSA-N alpha-methylcyclopentanone Natural products CC1CCCC1=O ZIXLDMFVRPABBX-UHFFFAOYSA-N 0.000 description 4
- 229910000365 copper sulfate Inorganic materials 0.000 description 4
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 4
- 239000008151 electrolyte solution Substances 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 4
- 230000007774 longterm Effects 0.000 description 4
- QWVGKYWNOKOFNN-UHFFFAOYSA-N o-cresol Chemical compound CC1=CC=CC=C1O QWVGKYWNOKOFNN-UHFFFAOYSA-N 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 4
- 230000003449 preventive effect Effects 0.000 description 4
- 230000001737 promoting effect Effects 0.000 description 4
- 239000002966 varnish Substances 0.000 description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 3
- 229910017052 cobalt Inorganic materials 0.000 description 3
- 239000010941 cobalt Substances 0.000 description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 3
- 239000007822 coupling agent Substances 0.000 description 3
- 239000012776 electronic material Substances 0.000 description 3
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- RYCLIXPGLDDLTM-UHFFFAOYSA-J tetrapotassium;phosphonato phosphate Chemical compound [K+].[K+].[K+].[K+].[O-]P([O-])(=O)OP([O-])([O-])=O RYCLIXPGLDDLTM-UHFFFAOYSA-J 0.000 description 3
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- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 description 2
- 229910001111 Fine metal Inorganic materials 0.000 description 2
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- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
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- ZGCMCIDMMMHREV-UHFFFAOYSA-N 5-[tris(2-ethylhexoxy)silyl]pentane-1,3-diamine Chemical compound CCCCC(CC)CO[Si](CCC(N)CCN)(OCC(CC)CCCC)OCC(CC)CCCC ZGCMCIDMMMHREV-UHFFFAOYSA-N 0.000 description 1
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- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
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Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/088—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyamides
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/09—Use of materials for the conductive, e.g. metallic pattern
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/38—Improvement of the adhesion between the insulating substrate and the metal
- H05K3/382—Improvement of the adhesion between the insulating substrate and the metal by special treatment of the metal
- H05K3/384—Improvement of the adhesion between the insulating substrate and the metal by special treatment of the metal by plating
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/38—Improvement of the adhesion between the insulating substrate and the metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
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- B05D2202/45—Metallic substrate based on other transition elements based on Cu
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B05D2350/60—Adding a layer before coating
- B05D2350/65—Adding a layer before coating metal layer
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
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- H05K2201/0335—Layered conductors or foils
- H05K2201/0355—Metal foils
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/03—Conductive materials
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- H05K2201/0358—Resin coated copper [RCC]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
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- H05K2203/0307—Providing micro- or nanometer scale roughness on a metal surface, e.g. by plating of nodules or dendrites
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
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- H05K2203/0703—Plating
- H05K2203/0723—Electroplating, e.g. finish plating
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/38—Improvement of the adhesion between the insulating substrate and the metal
- H05K3/389—Improvement of the adhesion between the insulating substrate and the metal by the use of a coupling agent, e.g. silane
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10T428/12431—Foil or filament smaller than 6 mils
- Y10T428/12438—Composite
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Parts Printed On Printed Circuit Boards (AREA)
- Manufacturing Of Printed Wiring (AREA)
- Laminated Bodies (AREA)
- Electroplating Methods And Accessories (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Description
K 4 P 2 O 7 濃度 50g/l〜400g/l
電解条件 : 液 温 20℃〜50℃
pH 9〜12
電流密度 0.1A/dm2〜2.5A/dm2
攪 拌 あり
K 4 P 2 O 7 濃度 50g/l〜400g/l
電解条件 : 液 温 20℃〜45℃
pH 10〜13
電流密度 0.1A/dm2〜2.0A/dm2
工程b. 前記樹脂組成物を、有機溶剤を用いて溶解し、樹脂固形分10wt%〜40wt%の樹脂溶液とする。
本件発明に係る表面処理銅箔は、絶縁樹脂基材に対する電解銅箔の張り合わせ面に防錆処理層とシランカップリング剤層とを備える表面処理銅箔において、当該防錆処理層は、重量厚さ5mg/m2〜40mg/m2ニッケル層と、重量厚さ5mg/m2〜40mg/m2のスズ層とを順次積層したものであり、当該防錆処理層の表面にシランカップリング剤層を備えることを特徴とするものである。
本件発明に係る表面処理銅箔の製造方法は、電解銅箔(粗化面を備える場合を含む)の絶縁樹脂基材に対する張り合わせ面に、ニッケル層を形成し、当該ニッケル層の上にスズ層を形成し防錆処理層とし、当該スズ層の表面にシランカップリング剤を吸着し、乾燥させてシランカップリング剤層を形成する表面処理銅箔の製造方法において、前記ニッケル層は、以下のニッケル電解液及び電解条件を用いることを特徴としたものである。
本件発明に係る極薄プライマ樹脂層付表面処理銅箔は、本件発明に係る表面処理銅箔の絶縁樹脂基材に対する張り合わせ面上に、完全平面に塗布したときの厚さに換算した厚さが0.5μm〜5μmの極薄プライマ樹脂層を備えたものである。ここで言う表面処理銅箔とは、その張り合わせ面が電解銅箔で言う光沢面でも粗面であっても構わない。特に、それらの面に粗化処理を備えない場合に有用である。
上述してきた本件発明に係る極薄プライマ樹脂層付表面処理銅箔の製造方法に関して説明する。ここでは、まず以下に述べる工程a.、工程b.の手順で極薄プライマ樹脂層の形成に用いる樹脂溶液を調整し、当該樹脂溶液を銅箔のシランカップリング剤層を形成した面に、完全平面に塗布したときの厚さに換算した厚さ0.5μm〜5μm分を塗布し、乾燥させることで半硬化状態とすることを特徴とする製造方法を採用するのである。
この実施例では、18μm厚さの未処理の電解銅箔(以下、単に「未処理箔」と称する。)の粗面(表面粗さRa=0.64μm、Rzjis=3.0μm)の表面に対し、粗化処理、防錆処理シランカップリング剤処理して、表面処理銅箔とした。以下、工程を追って詳細に述べる。
この実施例では、18μm厚さの未処理の電解銅箔(以下、単に「未処理箔」と称する。)の光沢面(表面粗さRa=0.25μm、Rzjis=1.2μm)の表面に対し、防錆処理、シランカップリング剤処理して、表面処理銅箔とした。即ち、粗化処理を省略したのである。以下、工程を追って詳細に述べる。
芳香族ポリアミド樹脂ポリマー 50重量部
フェノール樹脂 18重量部
硬化促進剤 0.1重量部
この実施例では、18μm厚さの未処理の電解銅箔(以下、単に「未処理箔」と称する。)の光沢面(表面粗さRa=0.25μm、Rzjis=1.2μm)の表面に対し、防錆処理、シランカップリング剤処理して、表面処理銅箔とした。即ち、粗化処理を省略したのである。以下、工程を追って詳細に述べる。
ポリエーテルサルホン樹脂 50重量部
硬化促進剤 1重量部
この比較例では、実施例1と同じ18μm厚さの未処理の電解銅箔(以下、単に「未処理箔」と称する。)の粗面(表面粗さRa=0.64μm、Rzjis=3.0μm)の表面に対し、粗化処理、防錆処理(ニッケル層のみ)、シランカップリング剤処理して、表面処理銅箔とした。
この比較例では、実施例1と同じ18μm厚さの未処理の電解銅箔(以下、単に「未処理箔」と称する。)の粗面(表面粗さRa=0.64μm、Rzjis=3.0μm)の表面に対し、粗化処理、防錆処理(スズ層のみ)、シランカップリング剤処理して、表面処理銅箔とした。
この比較例では、実施例1と同じ18μm厚さの未処理の電解銅箔(以下、単に「未処理箔」と称する。)の粗面(表面粗さRa=0.64μm、Rzjis=3.0μm)の表面に対し、粗化処理、防錆処理(ニッケル−スズ合金層)、シランカップリング剤処理して、表面処理銅箔とした。
この比較例では、実施例1と同じ18μm厚さの未処理の電解銅箔(以下、単に「未処理箔」と称する。)の粗面(表面粗さRa=0.64μm、Rzjis=3.0μm)の表面に対し、粗化処理、特許文献2に開示されたと同等の防錆処理(ニッケル−モリブデン−コバルト合金層)、シランカップリング剤処理して、表面処理銅箔とした。
この比較例では、18μm厚さの未処理の電解銅箔(以下、単に「未処理箔」と称する。)の光沢面(表面粗さRa=0.25μm、Rzjis=1.2μm)の表面に対し、防錆処理(ニッケル層のみ)、シランカップリング剤処理して、表面処理銅箔とした。即ち、粗化処理を省略した。以下、工程を追って詳細に述べる。
この比較例では、18μm厚さの未処理の電解銅箔(以下、単に「未処理箔」と称する。)の光沢面(表面粗さRa=0.25μm、Rzjis=1.2μm)の表面に対し、防錆処理(スズ層のみ)、シランカップリング剤処理して、表面処理銅箔とした。即ち、粗化処理を省略した。以下、工程を追って詳細に述べる。
この比較例では、18μm厚さの未処理の電解銅箔(以下、単に「未処理箔」と称する。)の光沢面(表面粗さRa=0.25μm、Rzjis=1.2μm)の表面に対し、防錆処理(ニッケル−スズ合金層)、シランカップリング剤処理して、表面処理銅箔とした。即ち、粗化処理を省略した。以下、工程を追って詳細に述べる。
実施例1と比較例1〜比較例4との対比: 最初に、実施例1(試料1−1〜試料1−8)と比較例1〜比較例4(試料1−9〜試料1−14及び試料3)との各試料の防錆処理元素の重量厚さを表2に示す。そして、表3には、当該試料を用いた評価結果を示す。
2 銅箔
3 防錆処理層
4 シランカップリング剤層
5 表面処理銅箔
6 極薄プライマ樹脂層
Claims (11)
- 絶縁樹脂基材に対する電解銅箔の張り合わせ面に防錆処理層とシランカップリング剤層とを備える表面処理銅箔において、
当該防錆処理層は、重量厚さ5mg/m2〜40mg/m2 のニッケル層と、重量厚さ5mg/m2〜40mg/m2のスズ層とを順次積層し、ニッケルとスズとの合計重量厚さが10mg/m 2 〜50mg/m 2 で、且つ、[ニッケル重量]/[スズ重量]=1/3〜3であり、
当該防錆処理層の表面にシランカップリング剤層を備えることを特徴とする表面処理銅箔。 - 前記電解銅箔の張り合わせ面は粗化処理を施したものである請求項1に記載の表面処理銅箔。
- 前記シランカップリング剤層は、アミノ系シランカップリング剤又はエポキシ系シランカップリング剤を用いて形成したものである請求項1又は請求項2に記載の表面処理銅箔。
- 請求項1又は請求項2に記載の表面処理銅箔の絶縁樹脂基材に対する張り合わせ面上に、完全平面に塗布したときの厚さに換算した厚さが0.5μm〜5μmの極薄プライマ樹脂層を備えたことを特徴とする極薄プライマ樹脂層付表面処理銅箔。
- 前記極薄プライマ樹脂層は、硬化剤を含むエポキシ樹脂5重量部〜80重量部と、溶剤に可溶な芳香族ポリアミド樹脂ポリマー又はポリエーテルサルホン20重量部〜95重量部と、必要に応じて適宜量添加する硬化促進剤からなる樹脂組成物を用いて構成したものである請求項4に記載の極薄プライマ樹脂層付表面処理銅箔。
- 前記極薄プライマ樹脂層に用いる芳香族ポリアミド樹脂ポリマーは、芳香族ポリアミドとゴム性樹脂とを反応させることで得られるものである請求項5に記載の極薄プライマ樹脂層付表面処理銅箔。
- MIL規格におけるMIL−P−13949Gに準拠して測定したときのレジンフローが5%以内である樹脂組成物で形成した極薄プライマ樹脂層を備えた請求項4〜請求項6のいずれかに記載の極薄プライマ樹脂層付表面処理銅箔。
- 請求項1に記載の表面処理銅箔の製造方法であって、
電解銅箔の絶縁樹脂基材に対する張り合わせ面に、ニッケル層を形成し、当該ニッケル層の上にスズ層を形成し防錆処理層とし、当該スズ層の表面にシランカップリング剤を吸着させ、乾燥させシランカップリング剤層を形成し、
当該シランカップリング剤層は、1g/l〜10g/l濃度のシランカップリング剤を水又は有機溶媒に分散させた溶液をスズ層の表面に吸着させ、乾燥することで形成したものであることを特徴する表面処理銅箔の製造方法。 - 前記乾燥は160℃〜200℃の温度雰囲気で行うものである請求項8に記載の表面処理銅箔の製造方法。
- 前記乾燥を180℃〜190℃の温度雰囲気で30分〜240分継続し、乾燥と併せてベーキング効果を得るものである請求項8又は請求項9のいずれかに記載の表面処理銅箔の製造方法。
- 請求項4に記載の極薄プライマ樹脂層付表面処理銅箔の製造方法であって、
以下の工程a.、工程b.の手順で極薄プライマ樹脂層の形成に用いる樹脂溶液を調整し、当該樹脂溶液を銅箔のシランカップリング剤層を形成した面に、完全平面に塗布したときの厚さに換算した厚さ0.5μm〜5μm分を塗布し、乾燥させることで半硬化状態とすることを特徴とする極薄プライマ樹脂層付表面処理銅箔の製造方法。
工程a. 硬化剤含むエポキシ樹脂5重量部〜80重量部と、溶剤に可溶な芳香族ポリアミド樹脂ポリマー又はポリエーテルサルホン20重量部〜95重量部と、必要に応じて適宜量添加する硬化促進剤とを混合して樹脂組成物とする。
工程b. 前記樹脂組成物を、有機溶剤を用いて溶解し、樹脂固形分10wt%〜40wt%の樹脂溶液とする。
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JPH07170064A (ja) * | 1993-08-06 | 1995-07-04 | Gould Electron Inc | 接着性促進層を有する金属箔 |
JP2005053218A (ja) * | 2003-07-22 | 2005-03-03 | Mitsui Mining & Smelting Co Ltd | 極薄接着剤層付銅箔及びその極薄接着剤層付銅箔の製造方法 |
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EP3046400A2 (en) | 2015-01-16 | 2016-07-20 | JX Nippon Mining & Metals Corporation | Copper foil provided with carrier, laminate, printed wiring board, electronic device, and method for fabricating printed wiring board |
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US9839124B2 (en) | 2015-02-06 | 2017-12-05 | Jx Nippon Mining & Metals Corporation | Copper foil provided with carrier, laminate, printed wiring board, electronic device and method for fabricating printed wiring board |
EP3232747A1 (en) | 2016-04-15 | 2017-10-18 | JX Nippon Mining & Metals Corp. | Copper foil, copper foil for high-frequency circuit, carrier-attached copper foil, carrier-attached copper foil for high-frequency circuit, laminate, method of manufacturing printed wiring board, and method of manufacturing electronic device |
EP3358047A1 (en) | 2017-02-03 | 2018-08-08 | JX Nippon Mining & Metals Corporation | Surface-treated copper foil, and current collector, electrode, and battery cell using the surface-treated copper foil |
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Also Published As
Publication number | Publication date |
---|---|
CN101194045B (zh) | 2010-11-17 |
JPWO2006134868A1 (ja) | 2009-01-08 |
TW200704833A (en) | 2007-02-01 |
KR101000342B1 (ko) | 2010-12-13 |
US20090029186A1 (en) | 2009-01-29 |
US8187723B2 (en) | 2012-05-29 |
WO2006134868A1 (ja) | 2006-12-21 |
CN101194045A (zh) | 2008-06-04 |
TWI339222B (ja) | 2011-03-21 |
MY152161A (en) | 2014-08-15 |
EP1911860A4 (en) | 2009-11-11 |
EP1911860A1 (en) | 2008-04-16 |
EP1911860B1 (en) | 2013-02-20 |
KR20080015468A (ko) | 2008-02-19 |
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