WO2013047272A1 - 樹脂との密着性に優れた銅箔及びその製造方法並びに該電解銅箔を用いたプリント配線板又は電池用負極材 - Google Patents
樹脂との密着性に優れた銅箔及びその製造方法並びに該電解銅箔を用いたプリント配線板又は電池用負極材 Download PDFInfo
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- WO2013047272A1 WO2013047272A1 PCT/JP2012/073839 JP2012073839W WO2013047272A1 WO 2013047272 A1 WO2013047272 A1 WO 2013047272A1 JP 2012073839 W JP2012073839 W JP 2012073839W WO 2013047272 A1 WO2013047272 A1 WO 2013047272A1
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- copper foil
- electrolytic copper
- electrolytic
- roughened
- peel strength
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
- C25D7/12—Semiconductors
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
- C25D7/06—Wires; Strips; Foils
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/50—Electroplating: Baths therefor from solutions of platinum group metals
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D1/00—Electroforming
- C25D1/04—Wires; Strips; Foils
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/38—Electroplating: Baths therefor from solutions of copper
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/48—After-treatment of electroplated surfaces
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/661—Metal or alloys, e.g. alloy coatings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/70—Carriers or collectors characterised by shape or form
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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
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/027—Negative electrodes
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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
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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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/03—Conductive materials
- H05K2201/0332—Structure of the conductor
- H05K2201/0335—Layered conductors or foils
- H05K2201/0355—Metal foils
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to an electrolytic copper foil excellent in adhesiveness to a resin, a method for producing the same, a printed wiring board using the electrolytic copper foil, or a negative electrode material for a battery.
- an electrolytic copper foil capable of obtaining a stronger peeling strength when used in combination with a substrate for a semiconductor package or a liquid crystal polymer substrate, which generally has a lower adhesion to a copper foil, and a method for producing the same
- a printed wiring board or battery negative electrode material using the electrolytic copper foil is also provided. It is useful as an electrolytic copper foil used for a printed wiring board or a negative electrode material for batteries (such as LiB).
- a printed wiring board will be described as a conventional technique.
- This printed wiring board is usually manufactured by the following process. First, a copper foil is laminated and bonded to a base material such as a synthetic resin under high temperature and pressure. Next, in order to form a target conductive circuit on the substrate, a circuit equivalent to the circuit is printed on the copper foil with a material such as an etching resistant resin. Then, unnecessary portions of the exposed copper foil are removed by an etching process. After the etching, the printed portion made of a material such as a resin (etching resistant resin) on the remaining copper (circuit portion) is removed to form a conductive circuit on the substrate. A predetermined element is finally soldered to the formed conductive circuit to form various printed circuit boards for electronic devices. Finally, it is joined to a resist or a build-up resin substrate.
- the peel strength from the resin substrate is mainly sufficient, and the peel strength is high temperature heating, wet processing, soldering, chemical treatment, etc. After that, it is required to be retained sufficiently.
- a method of increasing the peel strength between the electrolytic copper foil and the resin base material generally, a method of attaching a large amount of roughened particles on a raw copper foil having a large surface profile (unevenness, roughness). Representative.
- a copper foil with such a large profile is used for a semiconductor package substrate that needs to form a particularly fine circuit pattern among printed wiring boards, unnecessary copper particles remain during circuit etching. As a result, problems such as poor insulation between circuit patterns occur.
- the adhesion between the resin substrate for a semiconductor package substrate or the liquid crystal polymer substrate and the copper foil is generally lower than that of a general-purpose epoxy resin substrate such as FR-4, the aforementioned profile of the copper foil is reduced. In combination with this, the peel strength between the copper foil and the resin base material tends to further decrease. Therefore, as such a copper foil for fine wiring applications, both low profile of the adhesive surface with the resin base material and high adhesion (peel strength) with the resin base material are required.
- the frequency of electrical signals has been increasing with the increase in communication speed and capacity, and printed wiring boards and copper foils that can cope with this have been demanded.
- the frequency of the electric signal is 1 GHz or more, the influence of the skin effect in which the current flows only on the surface of the conductor becomes significant, and the influence that the current transmission path changes due to the unevenness of the surface and the impedance increases cannot be ignored. Also from this point, it is desired that the surface roughness of the copper foil is small.
- Liquid crystal polymer base materials that have been used in recent years due to the advantage of low transmission loss of high-frequency electrical signals, especially because the adhesion to the copper foil is low, so the copper foil has a low profile and adhesion (peel strength) It is necessary to achieve both.
- the surface treatment method for copper foil for printed wiring boards is generally made of copper and copper oxide on a raw rolled copper foil or electrolytic copper foil in order to first increase the adhesive strength (peel strength) between the copper foil and the resin.
- a roughening treatment is performed to impart fine particles made of
- the plating is performed with a copper sulfate plating bath.
- a heat treatment layer such as brass or zinc is formed.
- rust prevention treatment such as immersion or electrolytic chromate treatment or electrolytic chromium / zinc treatment.
- the roughened particle layer plays the most important role in providing the adhesive force (peel strength) between the copper foil (electrolysis) and the resin base material.
- a heat-resistant / rust-proofing layer is formed on the adhesive surface of the copper foil for printed wiring boards with the resin.
- the metal or alloy for forming the heat-resistant treatment layer many copper foils on which a coating layer such as Zn, Cu—Ni, Cu—Co, and Cu—Zn is formed have been put into practical use (for example, see Patent Document 3). ).
- the copper foil formed with a heat-resistant treatment layer made of Cu-Zn has no stain on the resin layer when laminated on a printed circuit board made of epoxy resin or the like, and peels off after high-temperature heating. Since it has excellent characteristics such as little deterioration in strength, it is widely used industrially.
- the method of forming the heat-resistant treatment layer made of brass is described in detail in Patent Document 4 and Patent Document 5.
- Patent Document 8 discloses a copper foil for a printed circuit having a roughening treatment layer made of a plurality of protruding electrodeposits containing one or two kinds of chromium or tungsten on the adherend surface of the copper foil. .
- the purpose of this layer is to increase adhesive strength and heat resistance, and to prevent powder falling.
- Patent Document 9 discloses a metal selected from the first group of metals containing one or two kinds of chromium or tungsten on the adherend surface of the copper foil, and the second group of nickel, iron, cobalt, and zinc.
- the copper foil for printed circuits which has the roughening process layer which consists of many protrusion-like electrodeposits is disclosed. The purpose of this layer is to increase adhesive strength and heat resistance, and to prevent powder falling, and the improved technique of Patent Document 8 has been proposed.
- Patent Document 10 discloses a composite metal layer made of one or more metals selected from copper, tungsten, and molybdenum and one or more metals selected from nickel, cobalt, iron, and zinc on the surface to be bonded of the copper foil. Proposed is a roughened copper foil provided with a roughened layer on this layer.
- Patent Document 11 when the roughening treatment is formed on the surface of the copper foil, even if a copper foil having an uneven surface is used, the copper particles are not concentrated on the convex portion, and the concave portion is formed. It has an acidic structure with copper sulfate and sulfuric acid as the main component so that bumpy copper particles are uniformly formed, adhesion strength is increased, residual copper phenomenon is unlikely to occur during etching, and etching properties are improved.
- a technique for forming a roughening treatment using a plating bath in which a metal selected from iron, nickel, cobalt, molybdenum, tungsten, titanium, and aluminum and polyethylene glycol are added to a copper plating bath.
- Patent Document 12 proposes a technique for forming a roughening treatment using a plating bath to which gelatin is added instead of the polyethylene glycol.
- the invention of the additive added to the acidic copper plating bath which has copper sulfate and a sulfuric acid as a main component is also made
- formed the effect has a limit and the further improvement is desired.
- JP-A-8-236930 Japanese Patent No. 3449964 Japanese Patent Publication No. 51-35711 Japanese Examined Patent Publication No. 54-6701 Japanese Patent No. 3306404 Japanese Patent Application No. 2002-170827 Japanese Patent Laid-Open No. 3-122298 Japanese Patent No. 2717911 Japanese Patent No. 2920083 Japanese Patent Application Laid-Open No. 2001-226795 JP 2005-353919 A JP 2005-353920 A
- the present invention relates to an electrolytic copper foil capable of increasing the adhesive strength between the electrolytic copper foil and the resin base material and increasing the peel strength, a manufacturing method thereof, and a printed wiring board or battery using the electrolytic copper foil.
- the negative electrode material that is, by forming the roughened particles of the present invention on the rough surface (M surface) of the electrolytic copper foil, the adhesive strength of the copper foil itself with the resin base material is greatly increased, and electrolysis is performed.
- An object of the present invention is to improve the roughening treatment layer on the copper foil without deteriorating the various characteristics of the copper foil and to increase the adhesive strength between the copper foil and the resin base material.
- the surface roughness Rz of the roughened surface (M surface) of the electrolytic copper foil is 3.0 ⁇ m or less, Ra is less than 0.6 ⁇ m, and Rt is less than 4.0 ⁇ m 1) to 2)
- the electrolytic copper foil according to any one of the above.
- the BT base material is a bismaleimide / triazine resin, which is a typical base material for a semiconductor package substrate.
- the BT substrate means the same thing.
- the electrolytic copper foil according to any one of 1) to 4), wherein a peel strength after soldering with the BT base material is 0.98 kN / m or more.
- a heat- and rust-proof layer containing at least one element selected from zinc, nickel, copper, and phosphorus is provided on the roughened particle layer or the covering plating layer 1)
- the electrolytic copper foil of the present invention can increase the adhesive strength between the copper foil and the resin base material without increasing the surface roughness of the copper foil, and can increase the peel strength. And it has the big effect that the manufacturing method can be provided. That is, by forming the roughened particles of the present invention on the rough surface (M surface) of the electrolytic copper foil, the adhesive strength of the copper foil itself with the resin base material is greatly increased, and various characteristics of the electrolytic copper foil are deteriorated. Without roughening, the roughening layer on the copper foil is improved, and the adhesive strength between the copper foil and the resin base material is increased.
- the present invention provides an electrolytic copper foil and a method for producing the same. It is effective as a copper foil for a semiconductor package substrate, a copper foil for a liquid crystal polymer substrate, or an electrolytic copper foil used for a negative electrode material for a battery (LiB, etc.) whose circuit is becoming finer and higher in frequency.
- FIG. 10000 time It is a SEM observation photograph (10000 time) of the surface which formed the roughening particle
- FIG. It is a SEM observation photograph (10000 time) of the surface in which the roughening particle
- FIG. It is a SEM observation photograph (10000 time) of the surface in which the roughening particle
- FIG. 10000 time It is a SEM observation photograph (10000 time) of the surface which formed the roughening particle
- FIG. It is a SEM observation photograph (10000 time) of the surface in which the roughening particle
- FIG. It is a SEM observation photograph (10000 time) of the surface in which the roughening particle
- FIG. It is a SEM observation photograph (10000 time) of the surface in which the roughening particle
- FIG. It is a SEM observation photograph (10000 time) of the surface in which the roughening particle
- the copper foil used in the present invention is an electrolytic copper foil.
- a roughened layer is formed on the copper foil to improve the adhesion (peel strength) with the resin layer.
- the roughness of the roughened layer is important, and a copper foil that exhibits low roughness and high peel strength is considered desirable.
- a roughened particle layer is formed in the roughened layer for the purpose of improving the peel strength by the anchor effect.
- the present invention provides an electrolytic copper foil having a low roughness and a high strength by reducing the particle size to about 1/4 or less than the conventional particle size and forming the number of particles by about 5 to 20 times. To do.
- the surface in contact with the drum surface is a glossy surface (S surface), and the opposite surface is a roughened surface (M surface).
- the present invention is an electrolytic copper foil in which roughened particles are formed on the roughened surface (M surface) of the electrolytic copper foil, and the average size of the roughened particles is 0.1 to 1.0 ⁇ m.
- the average size of the roughened particles is about 1/4 or less of the size of the conventional roughened particles, which is a remarkable feature of the present invention. If the average size of the roughened particles is in the range of 0.1 to 1.0 ⁇ m, the peel strength can be effectively improved.
- the average number of roughened particles formed at this time is 1 to 2 particles / ⁇ m 2 , and fine particles have a dense form. As a result, the peel strength due to the anchor effect can be improved.
- the surface roughness of the roughened surface (M surface) of the electrolytic copper foil is also important.
- Rz is 3.0 ⁇ m or less
- Ra is less than 0.6 ⁇ m
- Rt is less than 4.0 ⁇ m. be able to.
- the electrolytic copper foil of the present invention has a normal peel strength with the BT base material of 1.0 kN / m or more, and a peel strength after soldering with the BT base material of 0.98 kN / m or more can be achieved. Become.
- the size and number of the roughened particles are formed of a heat-resisting material containing at least one element selected from zinc, nickel, copper and phosphorus, further forming a copper plating layer by covering the fine particles of copper and copper oxide.
- This invention can manufacture the printed wiring board or the negative electrode material for batteries which improved the adhesiveness (peeling strength) of copper foil and resin using the electrolytic copper foil with said characteristics.
- the present invention uses an electrolytic bath made of sulfuric acid / copper sulfate, the copper concentration in the electrolytic bath is 10 to 20 g / L, and the roughened surface (M surface) of the electrolytic copper foil is fine and has many particles. A roughened particle layer is formed.
- the conventional coarse particle formation since the copper concentration was processed at 20 to 40 g / L, the limiting current density at the time of the coarse particle formation was a relatively high value.
- the present invention reduces the critical current density by keeping the copper concentration in the electrolytic bath as low as 10 to 20 g / L as described above, thereby reducing the coarse current at the same current density.
- the formation particle size As a result of increasing the formation particle size, it became possible to manufacture an electrolytic copper foil in which the size of one particle became fine and the number of formed many particles per copper area was increased. If the copper concentration in the electrolytic bath is less than 10 g / L, it is not preferable because the particle growth becomes slow and the production rate is lowered. Further, if the copper concentration in the electrolytic bath exceeds 20 g / L, the growth particles become too large as in the conventional case, and the object of the present invention cannot be achieved.
- the number of roughening particles described in the present specification was obtained by measuring the number of particles observed in an SEM 10,000 times image and converting the number from the image area.
- the particle size was measured by a line segment method for particles observed in a SEM 10,000 times image.
- the peel strength was measured by a method according to JIS-C-6481, using GHPL-830, a base material manufactured by Mitsubishi Gas Chemical.
- the surface roughness was measured by a stylus method according to JIS-B-0601.
- the copper roughened particles are preferably formed using an electrolytic bath made of sulfuric acid / copper sulfate containing tungsten ions. It is desirable that the electrolytic bath made of sulfuric acid / copper sulfate does not contain arsenic ions.
- the processing conditions for forming typical roughened particles of the present invention are as follows.
- liquid composition 1 In addition to the liquid composition 1, the following components can be added. Arsenic (As) is not added. (Selective liquid composition 2) W (added with tungstate): 0.1 to 100 mg / l
- the roughening layer can be plated with an electrolytic bath made of sulfuric acid / copper sulfate.
- a heat- and anti-rust layer containing at least one element selected from zinc, nickel, cobalt, copper, and phosphorus, a chromate film layer on the heat- and anti-rust layer, and a silane cup on the chromate film layer.
- a ring agent layer can be formed.
- a conventional heat-resistant / rust-proof layer can be used as the cover plating treatment, heat-resistance / rust-proof treatment, chromate treatment, and silane coupling agent combined with the present invention.
- the covering plating process is not particularly limited, and a known process can be used. Specific examples are shown below.
- the heat resistance / rust prevention layer is not particularly limited, and a known treatment can be used.
- the conventionally used brass coating layer can be used for the copper foil for printed wiring boards. Specific examples are shown below.
- Current density 1 to 50 A / dm 2 Plating time: 1 to 20 seconds
- the chromate film layer As the chromate film layer, an electrolytic chromate film layer or an immersion chromate film layer can be used.
- the chromate film layer preferably has a Cr content of 25 to 150 ⁇ g / dm 2 .
- the Cr content is preferably 25-150 ⁇ g / dm 2 . Examples of conditions for forming the chromate film layer are described below. However, as described above, it is not necessary to be limited to this condition, and any known chromate treatment can be used. This rust prevention treatment is one of the factors affecting the acid resistance, and the acid resistance is further improved by the chromate treatment.
- Electrolytic chromium / zinc treatment K 2 Cr 2 O 7 (Na 2 Cr 2 O 7 or CrO 3 ): 2 to 10 g / L, ZnOH or ZnSO 4 ⁇ 7H 2 O: 0.05 to 10 g / L, pH : 2.5 to 5.5, bath temperature: 20 to 80 ° C, current density: 0.05 to 5 A / dm 2 , time: 0.1 to 10 seconds
- silane coupling agent used for the copper foil for printed wiring boards of this invention the arbitrary silane coupling agents normally used for copper foil can be used, and there is no restriction
- the following conditions are shown as specific examples of the silane coupling agent treatment.
- a 0.2% epoxy silane aqueous solution is sprayed on the roughened copper foil surface and then dried.
- the selection of the silane coupling agent is arbitrary, it can be said that selection considering the affinity between the copper foil and the resin base material to be laminated is desirable.
- Example 1 An IPC Grade 3 electrolytic copper foil having a thickness of 12 ⁇ m was used, and a treatment for forming roughened particles was performed on the rough surface of the copper foil.
- the bath composition and electrolytic treatment conditions of the treatment (plating) electrolytic solution for forming roughened particles are shown.
- a heat-resistant / rust-proof layer is formed on the cover plating treatment, an electrolytic chromate treatment is performed on the heat-resistant / rust-proof layer, and a silane treatment (by coating) is performed on the chromate film layer. did.
- the number of roughened particles was 1.38 particles / ⁇ m 2 and the average particle size was 0.53 ⁇ m.
- the surface roughness was measured by a stylus method according to JIS-B-0601.
- the number of roughened particles was measured by measuring the number of particles observed in a SEM 10,000 times image. It is the result of converting the number from the area.
- the particle size is the result of measuring the particles observed in the SEM 10,000 times image by the line segment method.
- the particle size is an average value of the particle size in a vertical section observed at two arbitrary points on the roughened surface and the particle size in a plane observed at two arbitrary points.
- grains on the M surface of 12-micrometer-thick electrolytic copper foil of Example 1 is shown in FIG. As shown in FIG. 1, it can be seen that the size of one particle becomes fine and the number of particles formed per copper area increases.
- the following items were measured for the copper foil thus produced.
- a BT base material bismaleimide / triazine resin, GHPL-830MBT manufactured by Mitsubishi Gas Chemical Co., Ltd.
- the BT base material is a typical base material for a semiconductor package substrate. If the peel strength of the copper foil when laminated with the BT base material is 0.98 kN / m or more, it can be said that the copper foil has an adhesive strength that is not insufficient as a copper foil for semiconductor package substrates.
- the copper foil was thermocompression bonded with the above two types of base materials under predetermined conditions to form a copper-clad laminate, a circuit having a width of 10 mm was prepared by wet etching, the copper foil was peeled off, and the 90-degree peel strength was measured.
- the peel strength is a result of measurement using a Mitsubishi Gasification base material GHPL-830 and a method according to JIS-C-6481.
- the peel strength was greatly improved, and the peel strength at the time of BT resin lamination reached 1.12 kN / m, and the peel strength after soldering reached 1.12 kN / m.
- the surface roughness was Ra: 0.57 ⁇ m, Rt: 3.70 ⁇ m, Rz: 3.00 ⁇ m.
- Number of roughened particles (number / ⁇ m 2 ), particle size (average ⁇ m), surface roughness (Ra, Rt, Rz) and peel strength (BT substrate peel strength (kN / m)) measured in Example 1: normal state Table 1 shows the peel strength after soldering.
- Example 2 An IPC Grade 3 electrolytic copper foil having a thickness of 12 ⁇ m was used, and a treatment for forming roughened particles was performed on the rough surface of the copper foil.
- the bath composition and electrolytic treatment conditions of the treatment (plating) electrolytic solution for forming roughened particles are shown.
- a heat-resistant / rust-proof layer is formed on the cover plating treatment, an electrolytic chromate treatment is performed on the heat-resistant / rust-proof layer, and a silane treatment (by coating) is performed on the chromate film layer. did.
- the number of roughened particles was 1.29 / ⁇ m 2 and the average particle size was 0.56 ⁇ m.
- the surface roughness was measured by a stylus method according to JIS-B-0601.
- the number of roughened particles was measured by measuring the number of particles observed in a SEM 10,000 times image. It is the result of converting the number from the area.
- the particle size is the result of measuring the particles observed in the SEM 10,000 times image by the line segment method.
- the particle size is an average value of the particle size in a vertical section observed at two arbitrary points on the roughened surface and the particle size in a plane observed at two arbitrary points.
- grains in the M surface of 12-micrometer-thick electrolytic copper foil of Example 2 is shown in FIG. As shown in FIG. 2, it can be seen that the size of one particle becomes fine and the number of particles formed per copper area increases.
- the following items were measured for the copper foil thus produced.
- a BT base material bismaleimide / triazine resin, GHPL-830MBT manufactured by Mitsubishi Gas Chemical Co., Ltd.
- the BT base material is a typical base material for a semiconductor package substrate. If the peel strength of the copper foil when laminated with the BT base material is 0.98 kN / m or more, it can be said that the copper foil has an adhesive strength that is not insufficient as a copper foil for semiconductor package substrates.
- the copper foil was thermocompression bonded with the above two types of base materials under predetermined conditions to form a copper-clad laminate, a circuit having a width of 10 mm was prepared by wet etching, the copper foil was peeled off, and the 90-degree peel strength was measured.
- the peel strength is a result of measurement using a Mitsubishi Gasification base material GHPL-830 and a method according to JIS-C-6481.
- the peel strength was greatly improved, and the peel (peel) strength at the time of BT resin lamination reached 1.01 kN / m, and the peel strength after soldering reached 0.98 kN / m.
- the surface roughness was Ra: 0.43 ⁇ m, Rt: 2.97 ⁇ m, Rz: 2.60 ⁇ m.
- Number of roughened particles (number / ⁇ m 2 ), particle size (average ⁇ m), surface roughness (Ra, Rt, Rz) and peel strength (BT substrate peel strength (kN / m)) measured in Example 2: normal state Table 1 also shows the peel strength after soldering.
- Example 3 An IPC Grade 3 electrolytic copper foil having a thickness of 12 ⁇ m was used, and a treatment for forming roughened particles was performed on the rough surface of the copper foil.
- the bath composition and electrolytic treatment conditions of the treatment (plating) electrolytic solution for forming roughened particles are shown.
- a heat-resistant / rust-proof layer is formed on the cover plating treatment, an electrolytic chromate treatment is performed on the heat-resistant / rust-proof layer, and a silane treatment (by coating) is performed on the chromate film layer. did.
- the number of roughened particles was 1.47 particles / ⁇ m 2 and the average particle size was 0.67 ⁇ m.
- the surface roughness was measured by a stylus method according to JIS-B-0601.
- the number of roughened particles was measured by measuring the number of particles observed in a SEM 10,000 times image. It is the result of converting the number from the area.
- the particle size is the result of measuring the particles observed in the SEM 10,000 times image by the line segment method.
- the particle size is an average value of the particle size in a vertical section observed at two arbitrary points on the roughened surface and the particle size in a plane observed at two arbitrary points.
- FIG. 3 shows a SEM observation photograph (10,000 times) of the surface on which the roughened particles are formed on the M surface of the 12 ⁇ m-thick electrolytic copper foil of Example 3. As shown in FIG. 3, it can be seen that the size of one particle becomes fine and the number of particles formed per copper area increases.
- the following items were measured for the copper foil thus produced.
- a BT base material bismaleimide / triazine resin, GHPL-830MBT manufactured by Mitsubishi Gas Chemical Co., Ltd.
- the BT base material is a typical base material for a semiconductor package substrate. If the peel strength of the copper foil when laminated with the BT base material is 0.98 kN / m or more, it can be said that the copper foil has an adhesive strength that is not insufficient as a copper foil for semiconductor package substrates.
- the copper foil was thermocompression bonded with the above two types of base materials under predetermined conditions to form a copper-clad laminate, a circuit having a width of 10 mm was prepared by wet etching, the copper foil was peeled off, and the 90-degree peel strength was measured.
- the peel strength is a result of measurement using a Mitsubishi Gasification base material GHPL-830 and a method according to JIS-C-6481.
- the peel strength was greatly improved, the peel (peel) strength at the time of BT resin lamination reached 1.24 kN / m, and the peel strength after soldering reached 1.21 kN / m.
- the surface roughness was Ra: 0.43 ⁇ m, Rt: 3.13 ⁇ m, Rz: 2.70 ⁇ m.
- Number of roughened particles (number / ⁇ m 2 ), particle size (average ⁇ m), surface roughness (Ra, Rt, Rz) and peel strength (BT substrate peel strength (kN / m)) measured in Example 3: normal state Table 1 also shows the peel strength after soldering.
- Example 4 An IPC Grade 3 electrolytic copper foil having a thickness of 12 ⁇ m was used, and a treatment for forming roughened particles was performed on the rough surface of the copper foil.
- the bath composition and electrolytic treatment conditions of the treatment (plating) electrolytic solution for forming roughened particles are shown.
- a heat-resistant / rust-proof layer is formed on the cover plating treatment, an electrolytic chromate treatment is performed on the heat-resistant / rust-proof layer, and a silane treatment (by coating) is performed on the chromate film layer. did.
- the number of roughened particles was 1.54 particles / ⁇ m 2 and the average particle size was 0.49 ⁇ m.
- the surface roughness was measured by a stylus method according to JIS-B-0601.
- the number of roughened particles was measured by measuring the number of particles observed in a SEM 10,000 times image. It is the result of converting the number from the area.
- the particle size is the result of measuring the particles observed in the SEM 10,000 times image by the line segment method.
- the particle size is an average value of the particle size in a vertical section observed at two arbitrary points on the roughened surface and the particle size in a plane observed at two arbitrary points.
- FIG. 4 shows an SEM observation photograph (10,000 times) of the surface on which the roughened particles are formed on the M surface of the 12 ⁇ m-thick electrolytic copper foil of Example 4. As shown in FIG. 4, it can be seen that the size of one particle becomes fine and the number of particles formed per copper area increases.
- the following items were measured for the copper foil thus produced.
- a BT base material bismaleimide / triazine resin, GHPL-830MBT manufactured by Mitsubishi Gas Chemical Co., Ltd.
- the BT base material is a typical base material for a semiconductor package substrate. If the peel strength of the copper foil when laminated with the BT base material is 0.98 kN / m or more, it can be said that the copper foil has an adhesive strength that is not insufficient as a copper foil for semiconductor package substrates.
- the copper foil was thermocompression bonded with the above two types of base materials under predetermined conditions to form a copper-clad laminate, a circuit having a width of 10 mm was prepared by wet etching, the copper foil was peeled off, and the 90-degree peel strength was measured.
- the peel strength is a result of measurement using a Mitsubishi Gasification base material GHPL-830 and a method according to JIS-C-6481.
- the peel strength was greatly improved, the peel (peel) strength at the time of BT resin lamination reached 1.04 kN / m, and the peel strength after soldering reached 1.03 kN / m.
- the surface roughness was Ra: 0.43 ⁇ m, Rt: 3.13 ⁇ m, Rz: 2.57 ⁇ m.
- Number of roughened particles (number / ⁇ m 2 ), particle size (average ⁇ m), surface roughness (Ra, Rt, Rz) and peel strength (BT substrate peel strength (kN / m)) measured in Example 4: normal state Table 1 also shows the peel strength after soldering.
- Example 5 An IPC Grade 3 electrolytic copper foil having a thickness of 12 ⁇ m was used, and a treatment for forming roughened particles was performed on the rough surface of the copper foil.
- the bath composition and electrolytic treatment conditions of the treatment (plating) electrolytic solution for forming roughened particles are shown.
- a heat-resistant / rust-proof layer is formed on the cover plating treatment, an electrolytic chromate treatment is performed on the heat-resistant / rust-proof layer, and a silane treatment (by coating) is performed on the chromate film layer. did.
- the number of roughened particles was 1.40 / ⁇ m 2 and the average particle size was 0.61 ⁇ m.
- the surface roughness was measured by a stylus method according to JIS-B-0601.
- the number of roughened particles was measured by measuring the number of particles observed in a SEM 10,000 times image. It is the result of converting the number from the area.
- the particle size is the result of measuring the particles observed in the SEM 10,000 times image by the line segment method.
- the particle size is an average value of the particle size in a vertical section observed at two arbitrary points on the roughened surface and the particle size in a plane observed at two arbitrary points.
- FIG. 5 shows an SEM observation photograph (10,000 times) of the surface on which the roughened particles are formed on the M surface of the 12 ⁇ m-thick electrolytic copper foil of Example 5. As shown in FIG. 5, it can be seen that the size of one particle becomes fine and the number of particles formed per copper area increases.
- the following items were measured for the copper foil thus produced.
- a BT base material bismaleimide / triazine resin, GHPL-830MBT manufactured by Mitsubishi Gas Chemical Co., Ltd.
- the BT base material is a typical base material for a semiconductor package substrate. If the peel strength of the copper foil when laminated with the BT base material is 0.98 kN / m or more, it can be said that the copper foil has an adhesive strength that is not insufficient as a copper foil for semiconductor package substrates.
- the copper foil was thermocompression bonded with the above two types of base materials under predetermined conditions to form a copper-clad laminate, a circuit having a width of 10 mm was prepared by wet etching, the copper foil was peeled off, and the 90-degree peel strength was measured.
- the peel strength is a result of measurement using a Mitsubishi Gasification base material GHPL-830 and a method according to JIS-C-6481.
- the peel strength was greatly improved, the peel (peel) strength at the time of BT resin lamination reached 1.10 kN / m, and the peel strength after soldering reached 1.10 kN / m.
- the surface roughness was Ra: 0.50 ⁇ m, Rt: 3.20 ⁇ m, Rz: 2.67 ⁇ m.
- Number of roughened particles (number / ⁇ m 2 ), particle size (average ⁇ m), surface roughness (Ra, Rt, Rz) and peel strength (BT substrate peel strength (kN / m)) measured in Example 5: Normal state Table 1 also shows the peel strength after soldering.
- a heat-resistant / rust-proof layer is formed on the cover plating treatment, an electrolytic chromate treatment is performed on the heat-resistant / rust-proof layer, and a silane treatment (by coating) is performed on the chromate film layer. did.
- the number of roughened particles was reduced to 0.30 / ⁇ m 2 and the average particle size was increased to 2.55 ⁇ m as compared with Examples. .
- the surface roughness was measured by a stylus method according to JIS-B-0601.
- the number of roughened particles was measured by measuring the number of particles observed in a SEM 10,000 times image. It is the result of converting the number from the area.
- the particle size is the result of measuring the particles observed in the SEM 10,000 times image by the line segment method.
- the particle size is an average value of the particle size in a vertical section observed at two arbitrary points on the roughened surface and the particle size in a plane observed at two arbitrary points.
- FIG. 6 shows a SEM observation photograph (10,000 times) of the surface on which the roughened particles are formed on the M surface of the 12 ⁇ m-thick electrolytic copper foil of Comparative Example 1. As shown in FIG. 6, it can be seen that the size of one particle is coarsened and the number of particles formed per copper area is reduced.
- the following items were measured for the copper foil thus produced.
- a BT base material bismaleimide / triazine resin, GHPL-830MBT manufactured by Mitsubishi Gas Chemical Co., Ltd.
- the BT base material is a typical base material for a semiconductor package substrate. If the peel strength of the copper foil when laminated with the BT base material is 0.98 kN / m or more, it can be said that the copper foil has an adhesive strength that is not insufficient as a copper foil for semiconductor package substrates.
- the copper foil was thermocompression bonded with the above two types of base materials under predetermined conditions to form a copper-clad laminate, a circuit having a width of 10 mm was prepared by wet etching, the copper foil was peeled off, and the 90-degree peel strength was measured.
- the peel strength is a result of measurement using a Mitsubishi Gasification base material GHPL-830 and a method according to JIS-C-6481.
- a heat-resistant / rust-proof layer is formed on the cover plating treatment, an electrolytic chromate treatment is performed on the heat-resistant / rust-proof layer, and a silane treatment (by coating) is performed on the chromate film layer. did.
- the number of roughened particles was reduced to 0.63 / ⁇ m 2 and the average particle size was increased to 1.16 ⁇ m compared to the Examples. .
- the surface roughness was measured by a stylus method according to JIS-B-0601.
- the number of roughened particles was measured by measuring the number of particles observed in a SEM 10,000 times image. It is the result of converting the number from the area.
- the particle size is the result of measuring the particles observed in the SEM 10,000 times image by the line segment method.
- the particle size is an average value of the particle size in a vertical section observed at two arbitrary points on the roughened surface and the particle size in a plane observed at two arbitrary points.
- FIG. 7 shows a SEM observation photograph (10,000 times) of the surface on which the roughened particles are formed on the M-plane of the 12 ⁇ m-thick electrolytic copper foil of Comparative Example 2. As shown in FIG. 7, it can be seen that the size of one particle is coarsened and the number of particles formed per copper area is reduced.
- the following items were measured for the copper foil thus produced.
- a BT base material bismaleimide / triazine resin, GHPL-830MBT manufactured by Mitsubishi Gas Chemical Co., Ltd.
- the BT base material is a typical base material for a semiconductor package substrate. If the peel strength of the copper foil when laminated with the BT base material is 0.98 kN / m or more, it can be said that the copper foil has an adhesive strength that is not insufficient as a copper foil for semiconductor package substrates.
- the copper foil was thermocompression bonded with the above two types of base materials under predetermined conditions to form a copper-clad laminate, a circuit having a width of 10 mm was prepared by wet etching, the copper foil was peeled off, and the 90-degree peel strength was measured.
- the peel strength is a result of measurement using a Mitsubishi Gasification base material GHPL-830 and a method according to JIS-C-6481.
- a heat-resistant / rust-proof layer is formed on the cover plating treatment, an electrolytic chromate treatment is performed on the heat-resistant / rust-proof layer, and a silane treatment (by coating) is performed on the chromate film layer. did.
- the number of roughened particles was reduced to 0.12 particles / ⁇ m 2 and the average particle size was increased to 1.99 ⁇ m as compared with Examples. .
- the surface roughness was measured by a stylus method according to JIS-B-0601.
- the number of roughened particles was measured by measuring the number of particles observed in a SEM 10,000 times image. It is the result of converting the number from the area.
- the particle size is the result of measuring the particles observed in the SEM 10,000 times image by the line segment method.
- the particle size is an average value of the particle size in a vertical section observed at two arbitrary points on the roughened surface and the particle size in a plane observed at two arbitrary points.
- FIG. 8 shows an SEM observation photograph (10,000 times) of the surface on which the roughened particles are formed on the M surface of the 12 ⁇ m-thick electrolytic copper foil of Comparative Example 3. As shown in FIG. 8, it can be seen that the size of one particle is coarsened and the number of particles formed per copper area is reduced.
- the following items were measured for the copper foil thus produced.
- a BT base material bismaleimide / triazine resin, GHPL-830MBT manufactured by Mitsubishi Gas Chemical Co., Ltd.
- the BT base material is a typical base material for a semiconductor package substrate. If the peel strength of the copper foil when laminated with the BT base material is 0.98 kN / m or more, it can be said that the copper foil has an adhesive strength that is not insufficient as a copper foil for semiconductor package substrates.
- the copper foil was thermocompression bonded with the above two types of base materials under predetermined conditions to form a copper-clad laminate, a circuit having a width of 10 mm was prepared by wet etching, the copper foil was peeled off, and the 90-degree peel strength was measured.
- the peel strength is a result of measurement using a Mitsubishi Gasification base material GHPL-830 and a method according to JIS-C-6481.
- a heat-resistant / rust-proof layer is formed on the cover plating treatment, an electrolytic chromate treatment is performed on the heat-resistant / rust-proof layer, and a silane treatment (by coating) is performed on the chromate film layer. did.
- the number of roughened particles was reduced to 0.18 particles / ⁇ m 2 and the particle size was increased to 1.46 ⁇ m on average as compared with the Example. .
- the surface roughness was measured by a stylus method according to JIS-B-0601.
- the number of roughened particles was measured by measuring the number of particles observed in a SEM 10,000 times image. It is the result of converting the number from the area.
- the particle size is the result of measuring the particles observed in the SEM 10,000 times image by the line segment method.
- the particle size is an average value of the particle size in a vertical section observed at two arbitrary points on the roughened surface and the particle size in a plane observed at two arbitrary points.
- FIG. 9 shows an SEM observation photograph (10,000 times) of the surface on which roughened particles are formed on the M surface of the 12 ⁇ m-thick electrolytic copper foil of Comparative Example 4. As shown in FIG. 9, it can be seen that the size of one particle is coarsened and the number of particles formed per copper area is reduced.
- the following items were measured for the copper foil thus produced.
- a BT base material bismaleimide / triazine resin, GHPL-830MBT manufactured by Mitsubishi Gas Chemical Co., Ltd.
- the BT base material is a typical base material for a semiconductor package substrate. If the peel strength of the copper foil when laminated with the BT base material is 0.98 kN / m or more, it can be said that the copper foil has an adhesive strength that is not insufficient as a copper foil for semiconductor package substrates.
- the copper foil was thermocompression bonded with the above two types of base materials under predetermined conditions to form a copper-clad laminate, a circuit having a width of 10 mm was prepared by wet etching, the copper foil was peeled off, and the 90-degree peel strength was measured.
- the peel strength is a result of measurement using a Mitsubishi Gasification base material GHPL-830 and a method according to JIS-C-6481.
- the roughened particles of the present invention on the rough surface (M surface) of the electrolytic copper foil, there is a great effect that the adhesive strength between the copper foil itself and the resin base material can be significantly increased. That is, without degrading various characteristics of the electrolytic copper foil, the roughening layer on the copper foil can be improved, and the adhesive strength between the copper foil and the resin base material can be improved.
- Electrolytic copper which can obtain stronger peeling strength when used in combination with a substrate for semiconductor packages or a liquid crystal polymer substrate, which generally has a lower adhesion to copper foil than (FR-4 etc.) A foil and a method for manufacturing the same are provided.
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Abstract
Description
そして、露出している銅箔の不要部をエッチング処理により除去する。エッチング後、残存する銅(回路部分)の上にある樹脂(耐エッチング性樹脂)等の材料からなる印刷部を除去して、基板上に導電性の回路を形成する。形成された導電性の回路には、最終的に所定の素子を半田付けして、エレクトロニクスデバイス用の種々の印刷回路板を形成する。最終的には、レジスト又はビルドアップ樹脂基板と接合する。
電解銅箔と樹脂基材の間の剥離強度を高める方法としては、一般的に、表面のプロファイル(凹凸、粗さ)を大きくした生銅箔の上に多量の粗化粒子を付着させる方法が代表的である。しかしながら、プリント配線板の中でも特に微細な回路パターンを形成する必要のある半導体パッケージ基板に、このようなプロファイル(凹凸、粗さ)の大きい銅箔を使用すると、回路エッチング時に不要な銅粒子が残ってしまい、回路パターン間の絶縁不良等の問題が発生する。
したがって、このような微細配線用途の銅箔としては、樹脂基材との接着面の低プロファイル化と、樹脂基材との高い密着性(剥離強度)の両立が求められている。
さらにその上から、該銅箔に耐熱性・耐候性を持たせるため黄銅又は亜鉛等の耐熱処理層(障壁層)を形成する。
そして、この上に運搬中又は保管中の表面酸化等を防止するため、浸漬又は電解クロメート処理あるいは電解クロム・亜鉛処理等の防錆処理を施すことにより製品とする。
この黄銅から成る耐熱処理層を形成する方法については、特許文献4及び特許文献5に詳述されている。
このように、硫酸銅及び硫酸を主成分とする酸性銅めっき浴に添加する添加剤の工夫もなされているが、その効果には限界があり、さらなる改良が望まれている。
1)電解銅箔の粗化面(M面)に粗化粒子を形成した電解銅箔であって、該粗化粒子の平均サイズが0.1~1.0μmであることを特徴とする電解銅箔。
2)粗化粒子数の平均が1~2個/μm2であることを特徴とする1)記載の電解銅箔。
3)前記電解銅箔の粗化面(M面)の表面粗度Rzが3.0μm以下、Raが0.6μm未満、Rtが4.0μm未満であることを特徴とする1)~2)のいずれかに一項に記載の電解銅箔。
5)BT基材との半田後のピール強度が0.98kN/m以上であることを特徴とする1)~4)のいずれか一項に記載の電解銅箔。
6)前記粗化粒子層上に、かぶせ銅メッキ層を有することを特徴とする1)~5)のいずれかに一項に記載の電解銅箔。
8)前記耐熱・防錆層上にクロメート皮膜層を有することを特徴とする7)記載の電解銅箔。
9)前記当該クロメート皮膜層上にシランカップリング剤層を有することを特徴とする8)記載の電解銅箔。
10)上記1)~9)のいずれか一項に記載の電解銅箔を用いたプリント配線板又は電池用負極材。
12)タングステンイオンを含有する硫酸・硫酸銅からなる電解浴を用いて銅の粗化粒子を形成することを特徴とする11)記載の電解銅箔の製造方法。
この硫酸・硫酸銅からなる電解浴には、ヒ素イオンを含有させない。
微細回路形成には、粗化処理層の粗さが重要であり、低粗度で且つ高ピール強度を発現する銅箔が望ましいとされている。アンカー効果によるピール強度向上を目的に粗化処理層には、粗化粒子層を形成している。本発明は、従来の粒子サイズよりも約1/4以下に小さくし、粒子数を約5~20倍程度多く形成させることで、低粗度であり且つ高強度を発現する電解銅箔を提供するものである。
この粗化粒子の平均サイズは従来の粗化粒子のサイズの約1/4以下であり、本願発明の著しい特徴である。粗化粒子の平均サイズが0.1~1.0μmの範囲にあれば、ピール強度を効果的に向上させることができる。また、このときに形成される粗化粒子数の平均は、1~2個/μm2であり、微細な粒子が、密集した形態を持つ。この結果、アンカー効果によるピール強度を向上させることが可能となった。
以上によって、本願発明の電解銅箔は、BT基材との常態ピール強度が1.0kN/m以上であり、BT基材との半田後のピール強度が0.98kN/m以上を達成可能となる。
電解浴中の銅濃度を10g/L未満であると、粒子成長が緩慢となり生産速度が低下するので好ましくない。また、電解浴中の銅濃度を20g/Lを超えると、従来のように、成長粒子が大きくなり過ぎ、本願発明の目的を達成することができないので、上記の銅濃度とするのが良い。
なお、本願明細書で説明する粗化粒子数は、SEM1万倍画像で観察される粒子数を計測し、画像エリアから個数を換算した。また、粒子サイズは、SEM1万倍画像で観察される粒子を線分法にて計測した。ピール強度は、三菱ガス化製基材のGHPL-830を使用し、JIS-C-6481に準じた方法で測定した。表面粗さは、触針式にてJIS-B-0601に準じた方法で測定した。
(液組成)
Cu:10~20g/L
H2SO4:10~200g/L
ドデシル硫酸ナトリウム:0.1~100mg/l
温度: 25~60°C
(電流条件)
電流密度: 25~100A/dm2 (浴の限界電流密度以上であること)
(選択的液組成2)
W(タングステン酸塩で添加):0.1~100mg/l
本発明と組み合わせるかぶせメッキ処理、耐熱・防錆処理、クロメート処理、シランカップリング剤としては、従来の耐熱・防錆層を使用することが可能である。
(液組成)
Cu:20~100g/L
H2SO4:50~150g/L
(液温)
25~60°C
(電流条件)
電流密度:1~50A/dm2 (浴の限界電流密度以下であること)
めっき時間:1~20秒
具体例を、以下に示す。
(液組成)
NaOH:40~200g/L
NaCN:70~250g/L
CuCN:50~200g/L
Zn(CN)2:2~100g/L
As2O3:0.01~1g/L
(液温)
40~90°C
(電流条件)
電流密度:1~50A/dm2
めっき時間:1~20秒
前記クロメート皮膜層を形成するための条件の例を、以下に記載する。しかし、上記の通り、この条件に限定される必要はなく、すでに公知のクロメート処理はいずれも使用できる。この防錆処理は、耐酸性に影響を与える因子の一つであり、クロメート処理により、耐酸性はより向上する。
K2Cr2O7 :1~5g/L、pH:2.5~5.5、温 度:25~60°C、時間:0.5~8秒
K2Cr2O7(Na2Cr2O7或いはCrO3):2~10g/L、ZnOH又はZnSO4・7H2O:0.05~10g/L、pH:2.5~5.5、浴温:20~80°C、電流密度:0.05~5A/dm2、時間:0.1~10秒
0.2%エポキシシラン水溶液を銅箔粗化面にスプレー後、乾燥させる。
シランカップリング剤の選択は任意であるが、銅箔と積層する樹脂基材との親和性を考慮した選択が望ましいと言える。
厚さ12μmのIPC Grade 3 の電解銅箔を用い、この銅箔の粗面に、粗化粒子を形成する処理を行った。
粗化粒子を形成する処理(めっき)電解液の浴組成と電解処理条件を示す。
(液組成)
Cu:15g/L
H2SO4:100 g/L
W添加量:3mg/L (タングステン酸ナトリウム2水和物で添加、以下同様)
デシル硫酸ナトリウム添加量:4mg/L
(液温)38°C
(電流条件)
電流密度:54 A/dm2
(かぶせメッキ液組成)
Cu:45g/L
H2SO4:100 g/L
(液温)45°C
(電流条件)
電流密度: 29A/dm2 (浴の限界電流密度未満)
また、粒子サイズは、SEM1万倍画像で観察される粒子を線分法にて計測した結果である。なお、この粒子サイズは、粗化面の任意の2点で観察した垂直断面における粒子サイズと、任意の2点で観察した平面における粒子サイズの平均値である。
BT基材と積層した時の銅箔の剥離強度が0.98kN/m以上であれば、半導体パッケージ基板用途の銅箔として不足ない接着強度を持つと言える。
銅箔を前記2種の基材と所定の条件で熱圧着して銅張積層板とし、幅10mmの回路を湿式エッチングにより作製した後、銅箔を剥離し、90度剥離強度を測定した。
上記の通り、ピール強度は、三菱ガス化製基材のGHPL-830を使用し、JIS-C-6481に準じた方法で測定した結果である。
実施例1で測定した粗化粒子数(個/μm2)、粒子サイズ(平均μm)、表面粗さ(Ra、Rt、Rz)及び剥離強度(BT基材ピール強度(kN/m):常態と半田後のピール強度)を、表1に示す。
厚さ12μmのIPC Grade 3 の電解銅箔を用い、この銅箔の粗面に、粗化粒子を形成する処理を行った。
粗化粒子を形成する処理(めっき)電解液の浴組成と電解処理条件を示す。
(液組成)
Cu:15g/L
H2SO4:100 g/L
W添加量:3mg/L (タングステン酸ナトリウム2水和物で添加、以下同様)
デシル硫酸ナトリウム添加量:4mg/L
(液温)38°C
(電流条件)
電流密度:54 A/dm2
(かぶせメッキ液組成)
Cu:45g/L
H2SO4:100 g/L
(液温)45°C
(電流条件)
電流密度: 31A/dm2 (浴の限界電流密度未満)
また、粒子サイズは、SEM1万倍画像で観察される粒子を線分法にて計測した結果である。なお、この粒子サイズは、粗化面の任意の2点で観察した垂直断面における粒子サイズと、任意の2点で観察した平面における粒子サイズの平均値である。
BT基材と積層した時の銅箔の剥離強度が0.98kN/m以上であれば、半導体パッケージ基板用途の銅箔として不足ない接着強度を持つと言える。
銅箔を前記2種の基材と所定の条件で熱圧着して銅張積層板とし、幅10mmの回路を湿式エッチングにより作製した後、銅箔を剥離し、90度剥離強度を測定した。
上記の通り、ピール強度は、三菱ガス化製基材のGHPL-830を使用し、JIS-C-6481に準じた方法で測定した結果である。
実施例2で測定した粗化粒子数(個/μm2)、粒子サイズ(平均μm)、表面粗さ(Ra、Rt、Rz)及び剥離強度(BT基材ピール強度(kN/m):常態と半田後のピール強度)を、同様に表1に示す。
厚さ12μmのIPC Grade 3 の電解銅箔を用い、この銅箔の粗面に、粗化粒子を形成する処理を行った。
粗化粒子を形成する処理(めっき)電解液の浴組成と電解処理条件を示す。
(液組成)
Cu:20g/L
H2SO4:100 g/L
W添加量:3mg/L (タングステン酸ナトリウム2水和物で添加、以下同様)
デシル硫酸ナトリウム添加量:4mg/L
(液温)38°C
(電流条件)
電流密度:54 A/dm2
(かぶせメッキ液組成)
Cu:45g/L
H2SO4:100 g/L
(液温)45°C
(電流条件)
電流密度: 33A/dm2 (浴の限界電流密度未満)
また、粒子サイズは、SEM1万倍画像で観察される粒子を線分法にて計測した結果である。なお、この粒子サイズは、粗化面の任意の2点で観察した垂直断面における粒子サイズと、任意の2点で観察した平面における粒子サイズの平均値である。
BT基材と積層した時の銅箔の剥離強度が0.98kN/m以上であれば、半導体パッケージ基板用途の銅箔として不足ない接着強度を持つと言える。
銅箔を前記2種の基材と所定の条件で熱圧着して銅張積層板とし、幅10mmの回路を湿式エッチングにより作製した後、銅箔を剥離し、90度剥離強度を測定した。
上記の通り、ピール強度は、三菱ガス化製基材のGHPL-830を使用し、JIS-C-6481に準じた方法で測定した結果である。
実施例3で測定した粗化粒子数(個/μm2)、粒子サイズ(平均μm)、表面粗さ(Ra、Rt、Rz)及び剥離強度(BT基材ピール強度(kN/m):常態と半田後のピール強度)を、同様に表1に示す。
厚さ12μmのIPC Grade 3 の電解銅箔を用い、この銅箔の粗面に、粗化粒子を形成する処理を行った。
粗化粒子を形成する処理(めっき)電解液の浴組成と電解処理条件を示す。
(液組成)
Cu:10g/L
H2SO4:100 g/L
W添加量:3mg/L (タングステン酸ナトリウム2水和物で添加、以下同様)
デシル硫酸ナトリウム添加量:4mg/L
(液温)38°C
(電流条件)
電流密度:48 A/dm2
(かぶせメッキ液組成)
Cu:45g/L
H2SO4:100 g/L
(液温)45°C
(電流条件)
電流密度: 29A/dm2 (浴の限界電流密度未満)
また、粒子サイズは、SEM1万倍画像で観察される粒子を線分法にて計測した結果である。なお、この粒子サイズは、粗化面の任意の2点で観察した垂直断面における粒子サイズと、任意の2点で観察した平面における粒子サイズの平均値である。
BT基材と積層した時の銅箔の剥離強度が0.98kN/m以上であれば、半導体パッケージ基板用途の銅箔として不足ない接着強度を持つと言える。
銅箔を前記2種の基材と所定の条件で熱圧着して銅張積層板とし、幅10mmの回路を湿式エッチングにより作製した後、銅箔を剥離し、90度剥離強度を測定した。
上記の通り、ピール強度は、三菱ガス化製基材のGHPL-830を使用し、JIS-C-6481に準じた方法で測定した結果である。
実施例4で測定した粗化粒子数(個/μm2)、粒子サイズ(平均μm)、表面粗さ(Ra、Rt、Rz)及び剥離強度(BT基材ピール強度(kN/m):常態と半田後のピール強度)を、同様に表1に示す。
厚さ12μmのIPC Grade 3 の電解銅箔を用い、この銅箔の粗面に、粗化粒子を形成する処理を行った。
粗化粒子を形成する処理(めっき)電解液の浴組成と電解処理条件を示す。
(液組成)
Cu:15g/L
H2SO4:100 g/L
W添加量:3mg/L (タングステン酸ナトリウム2水和物で添加、以下同様)
デシル硫酸ナトリウム添加量:4mg/L
(液温)38°C
(電流条件)
電流密度:45 A/dm2
(かぶせメッキ液組成)
Cu:45g/L
H2SO4:100 g/L
(液温)45°C
(電流条件)
電流密度: 21A/dm2 (浴の限界電流密度未満)
また、粒子サイズは、SEM1万倍画像で観察される粒子を線分法にて計測した結果である。なお、この粒子サイズは、粗化面の任意の2点で観察した垂直断面における粒子サイズと、任意の2点で観察した平面における粒子サイズの平均値である。
BT基材と積層した時の銅箔の剥離強度が0.98kN/m以上であれば、半導体パッケージ基板用途の銅箔として不足ない接着強度を持つと言える。
銅箔を前記2種の基材と所定の条件で熱圧着して銅張積層板とし、幅10mmの回路を湿式エッチングにより作製した後、銅箔を剥離し、90度剥離強度を測定した。
上記の通り、ピール強度は、三菱ガス化製基材のGHPL-830を使用し、JIS-C-6481に準じた方法で測定した結果である。
実施例5で測定した粗化粒子数(個/μm2)、粒子サイズ(平均μm)、表面粗さ(Ra、Rt、Rz)及び剥離強度(BT基材ピール強度(kN/m):常態と半田後のピール強度)を、同様に表1に示す。
厚さ12μmのIPC Grade 3 の電解銅箔を用い、この銅箔の粗面に、粗化粒子を形成する処理を行った。
粗化粒子を形成する処理(めっき)電解液の浴組成と電解処理条件を示す。
(液組成)
Cu:35g/L
H2SO4:97.5 g/L
As添加量:1.6mg/L
(液温)38°C
(電流条件)
電流密度:70 A/dm2
(かぶせメッキ液組成)
Cu:45g/L
H2SO4:97.5 g/L
(液温)45°C
(電流条件)
電流密度: 41A/dm2 (浴の限界電流密度未満)
また、粒子サイズは、SEM1万倍画像で観察される粒子を線分法にて計測した結果である。なお、この粒子サイズは、粗化面の任意の2点で観察した垂直断面における粒子サイズと、任意の2点で観察した平面における粒子サイズの平均値である。
BT基材と積層した時の銅箔の剥離強度が0.98kN/m以上であれば、半導体パッケージ基板用途の銅箔として不足ない接着強度を持つと言える。
銅箔を前記2種の基材と所定の条件で熱圧着して銅張積層板とし、幅10mmの回路を湿式エッチングにより作製した後、銅箔を剥離し、90度剥離強度を測定した。
上記の通り、ピール強度は、三菱ガス化製基材のGHPL-830を使用し、JIS-C-6481に準じた方法で測定した結果である。
比較例1で測定した粗化粒子数(個/μm2)、粒子サイズ(平均μm)、表面粗さ(Ra、Rt、Rz)及び剥離強度(BT基材ピール強度(kN/m):常態と半田後のピール強度)を、同様に表1に示す。
厚さ12μmのIPC Grade 3 の電解銅箔を用い、この銅箔の粗面に、粗化粒子を形成する処理を行った。
粗化粒子を形成する処理(めっき)電解液の浴組成と電解処理条件を示す。
(液組成)
Cu:25g/L
H2SO4:97.5 g/L
As添加量:1.6mg/L
(液温)38°C
(電流条件)
電流密度:70 A/dm2
(かぶせメッキ液組成)
Cu:45g/L
H2SO4:97.5 g/L
(液温)45°C
(電流条件)
電流密度: 41A/dm2 (浴の限界電流密度未満)
また、粒子サイズは、SEM1万倍画像で観察される粒子を線分法にて計測した結果である。なお、この粒子サイズは、粗化面の任意の2点で観察した垂直断面における粒子サイズと、任意の2点で観察した平面における粒子サイズの平均値である。
BT基材と積層した時の銅箔の剥離強度が0.98kN/m以上であれば、半導体パッケージ基板用途の銅箔として不足ない接着強度を持つと言える。
銅箔を前記2種の基材と所定の条件で熱圧着して銅張積層板とし、幅10mmの回路を湿式エッチングにより作製した後、銅箔を剥離し、90度剥離強度を測定した。
上記の通り、ピール強度は、三菱ガス化製基材のGHPL-830を使用し、JIS-C-6481に準じた方法で測定した結果である。
比較例2で測定した粗化粒子数(個/μm2)、粒子サイズ(平均μm)、表面粗さ(Ra、Rt、Rz)及び剥離強度(BT基材ピール強度(kN/m):常態と半田後のピール強度)を、同様に表1に示す。
厚さ12μmのIPC Grade 3 の電解銅箔を用い、この銅箔の粗面に、粗化粒子を形成する処理を行った。
粗化粒子を形成する処理(めっき)電解液の浴組成と電解処理条件を示す。
(液組成)
Cu:25g/L
H2SO4:97.5 g/L
As添加量:1.6mg/L
(液温)38°C
(電流条件)
電流密度:44 A/dm2
(かぶせメッキ液組成)
Cu:45g/L
H2SO4:97.5 g/L
(液温)45°C
(電流条件)
電流密度: 36A/dm2 (浴の限界電流密度未満)
また、粒子サイズは、SEM1万倍画像で観察される粒子を線分法にて計測した結果である。なお、この粒子サイズは、粗化面の任意の2点で観察した垂直断面における粒子サイズと、任意の2点で観察した平面における粒子サイズの平均値である。
BT基材と積層した時の銅箔の剥離強度が0.98kN/m以上であれば、半導体パッケージ基板用途の銅箔として不足ない接着強度を持つと言える。
銅箔を前記2種の基材と所定の条件で熱圧着して銅張積層板とし、幅10mmの回路を湿式エッチングにより作製した後、銅箔を剥離し、90度剥離強度を測定した。
上記の通り、ピール強度は、三菱ガス化製基材のGHPL-830を使用し、JIS-C-6481に準じた方法で測定した結果である。
比較例3で測定した粗化粒子数(個/μm2)、粒子サイズ(平均μm)、表面粗さ(Ra、Rt、Rz)及び剥離強度(BT基材ピール強度(kN/m):常態と半田後のピール強度)を、同様に表1に示す。
厚さ12μmのIPC Grade 3 の電解銅箔を用い、この銅箔の粗面に、粗化粒子を形成する処理を行った。
粗化粒子を形成する処理(めっき)電解液の浴組成と電解処理条件を示す。
(液組成)
Cu:25g/L
H2SO4:97.5 g/L
As添加量:1.6mg/L
(液温)38°C
(電流条件)
電流密度:52 A/dm2
(かぶせメッキ液組成)
Cu:45g/L
H2SO4:97.5 g/L
(液温)45°C
(電流条件)
電流密度: 36A/dm2 (浴の限界電流密度未満)
また、粒子サイズは、SEM1万倍画像で観察される粒子を線分法にて計測した結果である。なお、この粒子サイズは、粗化面の任意の2点で観察した垂直断面における粒子サイズと、任意の2点で観察した平面における粒子サイズの平均値である。
BT基材と積層した時の銅箔の剥離強度が0.98kN/m以上であれば、半導体パッケージ基板用途の銅箔として不足ない接着強度を持つと言える。
銅箔を前記2種の基材と所定の条件で熱圧着して銅張積層板とし、幅10mmの回路を湿式エッチングにより作製した後、銅箔を剥離し、90度剥離強度を測定した。
上記の通り、ピール強度は、三菱ガス化製基材のGHPL-830を使用し、JIS-C-6481に準じた方法で測定した結果である。
比較例4で測定した粗化粒子数(個/μm2)、粒子サイズ(平均μm)、表面粗さ(Ra、Rt、Rz)及び剥離強度(BT基材ピール強度(kN/m):常態と半田後のピール強度)を、同様に表1に示す。
Claims (12)
- 電解銅箔の粗化面(M面)に粗化粒子を形成した電解銅箔であって、該粗化粒子の平均サイズが0.1~1.0μmであることを特徴とする電解銅箔。
- 粗化粒子数の平均が1~2個/μm2であることを特徴とする請求項1記載の電解銅箔。
- 前記電解銅箔の粗化面(M面)の表面粗度Rzが3.0μm以下、Raが0.6μm未満、Rtが4.0μm未満であることを特徴とする請求項1~2のいずれかに一項に記載の電解銅箔。
- BT基材との常態ピール強度が1.0kN/m以上であることを特徴とする請求項1~3のいずれか一項に記載の電解銅箔。
- BT基材との半田後のピール強度が0.98kN/m以上であることを特徴とする請求項1~4のいずれか一項に記載の電解銅箔。
- 前記粗化粒子層上に、かぶせ銅メッキ層を有することを特徴とする請求項1~5のいずれかに一項に記載の電解銅箔。
- 前記粗化粒子層上又は前記かぶせメッキ処理層上に、亜鉛、ニッケル、銅、リンから選択した少なくとも一種類以上の元素を含有する耐熱・防錆層を備えることを特徴とする請求項1~6のいずれかに一項に記載の電解銅箔。
- 前記耐熱・防錆層上にクロメート皮膜層を有することを特徴とする請求項7記載の電解銅箔。
- 前記当該クロメート皮膜層上にシランカップリング剤層を有することを特徴とする請求項8記載の電解銅箔。
- 上記請求項1~8のいずれか一項に記載の電解銅箔を用いたプリント配線板又は電池用負極材。
- 電解銅箔の粗化面(M面)に、硫酸・硫酸銅からなる電解浴を用いて粗化粒子を形成する電解銅箔の製造方法であって、電解浴中の銅濃度を10~20g/Lとして電解し、請求項1~9のいずれか一項に記載の電解銅箔を製造することを特徴とする電解銅箔の製造方法。
- タングステンイオンを含有する硫酸・硫酸銅からなる電解浴を用いて銅の粗化粒子を形成することを特徴とする請求項11記載の電解銅箔の製造方法。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013536189A JP6029590B2 (ja) | 2011-09-30 | 2012-09-18 | 樹脂との密着性に優れた銅箔及びその製造方法並びに該電解銅箔を用いたプリント配線板又は電池用負極材 |
KR1020187006370A KR102059280B1 (ko) | 2011-09-30 | 2012-09-18 | 수지와의 밀착성이 우수한 동박 및 그 제조 방법 그리고 그 전해 동박을 사용한 프린트 배선판 또는 전지용 부극재 |
KR1020147009364A KR20140054435A (ko) | 2011-09-30 | 2012-09-18 | 수지와의 밀착성이 우수한 동박 및 그 제조 방법 그리고 그 전해 동박을 사용한 프린트 배선판 또는 전지용 부극재 |
KR1020167027466A KR20160119875A (ko) | 2011-09-30 | 2012-09-18 | 수지와의 밀착성이 우수한 동박 및 그 제조 방법 그리고 그 전해 동박을 사용한 프린트 배선판 또는 전지용 부극재 |
CN201280048298.2A CN103857833B (zh) | 2011-09-30 | 2012-09-18 | 与树脂粘着性优良的铜箔、其制造方法以及使用该电解铜箔的印刷布线板或电池用负极材料 |
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KR (3) | KR102059280B1 (ja) |
CN (1) | CN103857833B (ja) |
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07231152A (ja) * | 1993-12-24 | 1995-08-29 | Mitsui Mining & Smelting Co Ltd | プリント回路内層用銅箔およびその製造方法 |
JP2006210689A (ja) * | 2005-01-28 | 2006-08-10 | Fukuda Metal Foil & Powder Co Ltd | 高周波プリント配線板用銅箔及びその製造方法 |
JP2006299291A (ja) * | 2005-04-15 | 2006-11-02 | Fukuda Metal Foil & Powder Co Ltd | 銅箔の粗面化処理方法及び粗面化処理液 |
WO2009145207A1 (ja) * | 2008-05-28 | 2009-12-03 | 三井金属鉱業株式会社 | 銅箔の粗化処理方法及びその粗化処理方法で得られるプリント配線板用銅箔 |
WO2010110092A1 (ja) * | 2009-03-27 | 2010-09-30 | 日鉱金属株式会社 | プリント配線板用銅箔及びその製造方法 |
JP2011168887A (ja) * | 2010-01-22 | 2011-09-01 | Furukawa Electric Co Ltd:The | 粗化処理銅箔、その製造方法、銅張積層板及びプリント配線板 |
JP2011179053A (ja) * | 2010-02-26 | 2011-09-15 | Hitachi Cable Ltd | 粗化箔及びその製造方法 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5135711A (en) | 1974-09-24 | 1976-03-26 | Komatsu Shoichi | Taisui hatsuyuseiojusurukami narabini sonoseizoho |
JPS581853B2 (ja) | 1977-06-17 | 1983-01-13 | 松下電器産業株式会社 | 選局装置 |
JP2739507B2 (ja) | 1989-10-06 | 1998-04-15 | 日鉱グールド・フォイル株式会社 | 銅箔の電解処理方法 |
JP2717911B2 (ja) | 1992-11-19 | 1998-02-25 | 日鉱グールド・フォイル株式会社 | 印刷回路用銅箔及びその製造方法 |
US5482784A (en) * | 1993-12-24 | 1996-01-09 | Mitsui Mining And Smelting Co., Ltd. | Printed circuit inner-layer copper foil and process for producing the same |
TW317575B (ja) | 1994-01-21 | 1997-10-11 | Olin Corp | |
JP2920083B2 (ja) | 1995-02-23 | 1999-07-19 | 日鉱グールド・フォイル株式会社 | 印刷回路用銅箔及びその製造方法 |
JP3949871B2 (ja) | 1999-12-10 | 2007-07-25 | 日本電解株式会社 | 粗化処理銅箔及びその製造方法 |
JP3306404B2 (ja) | 2000-01-28 | 2002-07-24 | 三井金属鉱業株式会社 | 表面処理銅箔の製造方法及びその製造方法で得られた表面処理銅箔を用いた銅張積層板 |
JP4475836B2 (ja) | 2000-09-25 | 2010-06-09 | イビデン株式会社 | 半導体素子の製造方法 |
JP4273309B2 (ja) * | 2003-05-14 | 2009-06-03 | 福田金属箔粉工業株式会社 | 低粗面電解銅箔及びその製造方法 |
JP2005353919A (ja) | 2004-06-11 | 2005-12-22 | Hitachi Cable Ltd | プリント配線板用銅箔の表面粗化処理方法 |
JP2005353920A (ja) | 2004-06-11 | 2005-12-22 | Hitachi Cable Ltd | プリント配線板用銅箔の表面粗化処理方法 |
-
2012
- 2012-09-18 KR KR1020187006370A patent/KR102059280B1/ko active IP Right Grant
- 2012-09-18 WO PCT/JP2012/073839 patent/WO2013047272A1/ja active Application Filing
- 2012-09-18 KR KR1020167027466A patent/KR20160119875A/ko active Application Filing
- 2012-09-18 KR KR1020147009364A patent/KR20140054435A/ko active Application Filing
- 2012-09-18 CN CN201280048298.2A patent/CN103857833B/zh active Active
- 2012-09-18 JP JP2013536189A patent/JP6029590B2/ja active Active
- 2012-09-18 MY MYPI2014700775A patent/MY175198A/en unknown
- 2012-09-24 TW TW101134889A patent/TWI605735B/zh active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07231152A (ja) * | 1993-12-24 | 1995-08-29 | Mitsui Mining & Smelting Co Ltd | プリント回路内層用銅箔およびその製造方法 |
JP2006210689A (ja) * | 2005-01-28 | 2006-08-10 | Fukuda Metal Foil & Powder Co Ltd | 高周波プリント配線板用銅箔及びその製造方法 |
JP2006299291A (ja) * | 2005-04-15 | 2006-11-02 | Fukuda Metal Foil & Powder Co Ltd | 銅箔の粗面化処理方法及び粗面化処理液 |
WO2009145207A1 (ja) * | 2008-05-28 | 2009-12-03 | 三井金属鉱業株式会社 | 銅箔の粗化処理方法及びその粗化処理方法で得られるプリント配線板用銅箔 |
WO2010110092A1 (ja) * | 2009-03-27 | 2010-09-30 | 日鉱金属株式会社 | プリント配線板用銅箔及びその製造方法 |
JP2011168887A (ja) * | 2010-01-22 | 2011-09-01 | Furukawa Electric Co Ltd:The | 粗化処理銅箔、その製造方法、銅張積層板及びプリント配線板 |
JP2011179053A (ja) * | 2010-02-26 | 2011-09-15 | Hitachi Cable Ltd | 粗化箔及びその製造方法 |
Cited By (31)
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KR20170038969A (ko) * | 2015-09-30 | 2017-04-10 | 일진머티리얼즈 주식회사 | 표면처리동박 및 그의 제조방법 |
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TWI605735B (zh) | 2017-11-11 |
JPWO2013047272A1 (ja) | 2015-03-26 |
TW201330719A (zh) | 2013-07-16 |
CN103857833A (zh) | 2014-06-11 |
KR20140054435A (ko) | 2014-05-08 |
KR20160119875A (ko) | 2016-10-14 |
JP6029590B2 (ja) | 2016-11-24 |
MY175198A (en) | 2020-06-15 |
KR20180026584A (ko) | 2018-03-12 |
KR102059280B1 (ko) | 2019-12-24 |
CN103857833B (zh) | 2018-09-07 |
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