WO2005095677A1 - 銅箔及びその製造方法 - Google Patents
銅箔及びその製造方法 Download PDFInfo
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- WO2005095677A1 WO2005095677A1 PCT/JP2005/006293 JP2005006293W WO2005095677A1 WO 2005095677 A1 WO2005095677 A1 WO 2005095677A1 JP 2005006293 W JP2005006293 W JP 2005006293W WO 2005095677 A1 WO2005095677 A1 WO 2005095677A1
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- WIPO (PCT)
- Prior art keywords
- copper foil
- stage
- area
- roughness
- roughening treatment
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Classifications
-
- 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
-
- 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
-
- 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
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12431—Foil or filament smaller than 6 mils
- Y10T428/12438—Composite
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
- Y10T428/12556—Organic component
- Y10T428/12569—Synthetic resin
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12903—Cu-base component
- Y10T428/1291—Next to Co-, Cu-, or Ni-base component
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12993—Surface feature [e.g., rough, mirror]
Definitions
- the present invention relates to a copper foil and a method for producing the same.
- Copper foil is widely used as a material for forming printed wiring boards and the like. Since the printed wiring board is obtained by bonding a copper foil to another material such as a pre-preda, it is preferable that the adhesive strength between the copper foil and the pre-preda is high.
- a surface-treated copper foil is prepared from an untreated copper foil, and the roughened surface is coated on a pre-predator or the like of the bump.
- Methods that use the anchor effect have been used. Since the anchor effect is generated based on the bite of the bumps on the prepreg or the like, the adhesive strength between the copper foil roughened surface and the prepreg or the like generally indicates the size of the bumps and the roughened copper foil. It is thought that the surface roughness increases with the increase of the roughness R.
- a method for evaluating the adhesive strength has been performed.
- the copper foil which is a material of the printed wiring board, also has a small thickness of the surface-treated copper foil itself, and has a low bump of the copper foil roughened surface, that is, It has become desirable to have a low roughness R.
- the adhesive strength of the copper foil roughened surface is determined by the roughness R measured by the stylus-type roughness meter as described above.
- the lower limit of Z had to be set higher. For this reason, it is said that the roughness R of the roughened surface of the copper foil cannot be reduced too much.
- Patent Document 1 Japanese Patent Application Laid-Open No. Hei 10-265991 discloses that a plating material having a plating film such as Cu formed on a surface of a metal plate is treated with an electron beam three-dimensional roughness analyzer.
- the arithmetic average roughness (Ra) is 0.03 to 0. based on the plating material surface obtained by magnifying 3000 times, and (measurement force)
- the alternative surface area defined as (vertical x horizontal) is 1.01 ⁇ : L1.
- An object of the present invention is to provide a metal material having adhesiveness to resin by setting the arithmetic mean roughness (Ra) and the surface area substitute value in appropriate ranges.
- Patent Document 1 Japanese Patent Application Laid-Open No. Hei 10-265991 (Page 2, Column 1)
- an object of the present invention is to provide a copper foil having a high adhesive strength even if the roughness R of the roughened surface of the copper foil is low.
- the present inventors have conducted intensive studies, and as a result, the three-dimensional surface area A (S) obtained by three-dimensionally measuring the surface area of the roughened surface of the copper foil sample S with a laser microscope. And the area coefficient C (S) calculated by A (S) / B (S) from the measurement area B (S), which is the area of the measurement area of the three-dimensional surface area A (S), and the stylus Copper foils whose roughness R (S) is within a specific range on the roughened surface measured using a surface roughness meter have a low adhesive strength even when the roughness R is low.
- the three-dimensional surface area A (S) obtained by measuring the surface area of the roughened surface of the copper foil sample S three-dimensionally with a laser microscope and the three-dimensional surface area A (S )
- the copper foil sample S is a copper foil characterized in that the copper foil has a thickness of (18) ⁇ m or less.
- the untreated copper foil of ⁇ m to 5.0 ⁇ m is used to form copper fine particles on the roughened surface of the untreated copper foil to perform a roughening treatment.
- the present invention provides a method for producing a copper foil, wherein the post-roughening treatment is performed with a current density of 3AZdm 2 to LOAZdm 2 for 2 to 10 seconds.
- the copper foil according to the present invention is a copper foil having high adhesive strength while having low roughness R.
- the method for producing a copper foil according to the present invention can efficiently produce the copper foil according to the present invention.
- the copper foil according to the present invention has a thickness of usually 18 ⁇ m or less, preferably 12 ⁇ m to 18 ⁇ m. It is preferable that the thickness of the copper foil be within the above range, because the thickness of the printed wiring board can be easily reduced.
- the copper foil according to the present invention has a three-dimensional surface area A (S) obtained by three-dimensionally measuring the surface area of the roughened surface of the copper foil sample S with a laser microscope and the three-dimensional surface area A ( From the measurement area B (S), which is the area of the measurement area of S), the area coefficient C (S) defined by A (S) ZB (S) and the above-mentioned measurement using a stylus type roughness meter
- the roughness R (S) of the roughened surface of the copper foil sample S is
- the laser microscope used in the present invention is a laser microscope capable of 3D analysis and capable of measuring a three-dimensional surface area A (S) and a measurement area B (S) described later. It is not particularly limited.
- the laser used in the laser microscope is preferably a violet laser having a visible light limit wavelength of 405 nm to 410 nm, since the area coefficient C (S) can be easily measured with high accuracy.
- the three-dimensional surface area A (S) is a surface area obtained by three-dimensionally measuring a roughened surface in a measurement area of the copper foil sample S with a laser microscope.
- the surface area of the copper foil sample S including irregularities of the roughened surface obtained by moving the lens of the microscope in the z-axis direction to move the focal point.
- the three-dimensional surface area A (S) indicates the three-dimensional surface area A obtained for the copper foil sample S.
- the shape of the measurement area is not particularly limited, and examples thereof include a square and a rectangle.
- the copper foil according to the present invention has an area coefficient C (S) calculated by dividing the three-dimensional surface area A (S) by the measurement area B (S) (A (S) ZB (S)). And the roughness R (S) is in the relationship of
- the former is more preferable, but the latter is more preferable because the area represented by the above formula and the range where the plot of the copper foil exists are easier to match.
- the area coefficient C (S) takes a value of 1 or more.
- the area coefficient C (S) indicates the area coefficient C obtained for the copper foil sample S. Further, in this specification, the roughness R measured by a stylus type roughness meter is used.
- Z is a value measured by a stylus type roughness meter using a stylus whose tip is a diamond ball having a diameter of 2 ⁇ m.
- the roughness R (S) is measured by a stylus-type roughness meter for the copper foil sample S.
- the right side (0.5XR (S) + 0.7) of the following equation (3) is also called the roughness coefficient D (S).
- the area coefficient C (S) is not less than the roughness coefficient D (S), preferably not less than the roughness coefficient D (S) and not more than the roughness coefficient D (S). , More preferably coarse
- R (S) is a numerical value in a unit of ⁇ m.
- R (S) is a numerical value in a unit of ⁇ m.
- the above equation (2) is based on the above equation (4) as a lower limit and the slope of R (S) with respect to C (S).
- R (S) is a numerical value in a unit of ⁇ m.
- the copper foil according to the present invention has a roughness R force of the roughened surface measured using a stylus type roughness meter.
- the copper foil according to the present invention can be produced, for example, by the following method for producing a copper foil according to the present invention.
- the method for producing a copper foil according to the present invention uses a single-step roughening treatment in which untreated copper foil is used, and roughening treatment is performed by forming fine copper particles on the rough surface of the untreated copper foil. Is what you do.
- the copper foil subjected to the roughening treatment has a roughness R1S of usually 1.0 / ⁇ ⁇ 5.O ⁇ m, which is measured using a stylus type roughness meter. , Preferably 2.0 / ⁇ 4.O / zm
- a one-stage roughening process of forming copper fine grains on the rough surface of the untreated copper foil and performing a roughening process is performed. This is performed using a roughening treatment solution.
- the one-stage roughening treatment liquid used in the present invention has a Cu (II) ion concentration of usually 5 gZl to 20 gZ
- the one-stage roughening treatment liquid used in the present invention has a free SO 2_ ion concentration
- the one-stage roughening treatment solution used in the present invention has a concentration of 9 phenylacridine of usually 100 mgZl to 200 mgZl, preferably 120 mgZl to 180 mgZl.
- Zl preferably 40 mg Zl to 60 mg Zl.
- the one-step roughening treatment is carried out by using the above-mentioned one-step roughening treatment liquid and performing electrolysis using the roughened surface of the untreated copper foil as a cathode to obtain Cu in the one-step roughening treatment liquid.
- the roughened surface of the untreated copper foil is formed by depositing ions to form fine copper particles on the roughened surface of the untreated copper foil.
- the one-stage roughening treatment is performed in the above-mentioned one-stage roughening treatment solution by performing a first-stage roughening process during the one-stage roughening process and a one-stage roughening process during the one-stage roughening process. And processing are sequentially performed.
- the first-stage roughing process is a one-stage roughing process performed first during the one-stage roughing process
- the process is a one-stage roughing process performed during the one-stage roughing process after the one-stage roughing process.
- the one-stage pre-stage roughening process and the one-stage post-stage roughening process are common in that they are one-stage roughening processes performed in the same one-stage roughening treatment solution, but will be described later. They differ in the electrolysis conditions.
- the one-stage pre-stage roughening process and the one-stage post-stage roughening process during the one-stage roughening process include, for example, a process in which the anode facing the rough surface of the untreated copper foil is treated in a one-stage roughening solution.
- an anode for the first-stage roughening treatment hereinafter, also referred to as “the first-stage anode”
- an anode for the first-stage roughening treatment hereinafter, also referred to as the “one-stage later anode”.
- the temperature of the one-step roughening treatment liquid during electrolysis is usually 20 ° C to 40 ° C, preferably 25 ° C to 35 ° C.
- the current density of the first-stage roughening process is usually 15 AZdm 2 to 30 AZdm 2
- the electrolysis time of the first-stage roughing treatment is usually 2 seconds to 10 seconds, preferably 3 seconds to 7 seconds, and more preferably 4 seconds to 5 seconds.
- the current density of the first-stage subsequent roughening treatment usually 3AZdm 2 ⁇ : L0AZdm 2, preferably 5AZdm 2 ⁇ 7AZdm 2.
- the electrolysis time of the first-stage roughing treatment is usually 2 seconds to 10 seconds, preferably 3 seconds to 7 seconds, and more preferably 4 seconds to 5 seconds.
- the copper fine grains are further firmly bonded to the rough surface of the untreated copper foil and the copper fine grains are slightly grown.
- the copper fine particles formed in the one-stage roughing process are prevented from falling off Is preferred.
- the two-step roughening treatment is not particularly limited as long as it can prevent the copper fine particles from falling off, but the following specific two-step roughening treatment liquid is used, and the following specific electrolytic treatment is performed. It is preferable to perform the reaction under the conditions, since it is possible to sufficiently prevent the copper fine particles formed by the one-step roughening treatment from falling off.
- the two-stage roughening solution used in the present invention has a Cu (II) ion concentration of usually 50 gZl to 80 gZl, preferably 60 gZl to 70 gZl.
- the two-stage roughening treatment solution used in the present invention has a C1 ion concentration of usually lOmgZl or less, preferably 5mgZl or less, more preferably lmgZl or less.
- the two-step roughening treatment is performed by using the above-mentioned two-step roughening treatment liquid, using the rough surface of the copper foil on which the copper fine grains are formed in the one-step roughening treatment as a cathode.
- Cu (II) ions in the two-step roughening treatment liquid are electrodeposited to cover the copper fine particles.
- the two-stage roughening treatment is performed in the above-described two-stage roughening treatment solution by performing two-stage roughening treatment during the two-stage roughening treatment and two-stage roughening treatment during the two-stage roughening treatment And processing are sequentially performed.
- the two-stage roughing process is a two-stage roughing process performed first in the two-stage roughing process
- the second-stage roughing process is a two-stage roughing process during the two-stage roughing process. This is a two-stage roughing process performed after the two-stage roughing process.
- the two-stage roughening process and the two-stage roughening process are common in that they are two-stage roughening processes performed in the same two-stage roughening solution.
- the two-stage pre-stage roughing process is a difference between the one-stage pre-stage roughing process and the one-stage post-stage roughing process in the one-stage front stage roughing process.
- the electrolysis conditions need not be different, and the electrolysis conditions may be different or the same.
- the two-stage roughening process and the two-stage roughening process during the two-stage roughening process include, for example, a one-stage roughening process in a two-stage roughening solution, and fine copper particles are removed.
- the anode facing the rough surface of the formed copper foil is referred to as an anode for two-stage pre-roughening treatment (hereinafter also referred to as “two-stage pre-stage anode”) and an anode for two-stage post-roughening treatment (hereinafter, “ 1st-stage roughening treatment
- the copper foil on which the copper fine grains are formed is first subjected to a two-stage pre-stage roughing process using a two-stage front stage anode, and then subjected to a two-stage post-stage roughing process using a two-stage post-stage anode. Can be distinguished.
- the temperature of the two-stage roughening treatment solution during electrolysis is usually 40 ° C to 60 ° C, preferably 45 ° C to 50 ° C.
- the current density of the two-stage pre-stage nodular treatment is usually 10AZdm 2 ⁇ 30AZdm 2
- It is preferably from 12 AZdm 2 to 25 AZdm 2 , more preferably from 15 AZdm 2 to 19 AZdm 2 .
- the electrolysis time of the two-stage pre-stage roughing treatment is usually 2 seconds to 10 seconds, preferably 3 seconds to 7 seconds, and more preferably 4 seconds to 5 seconds.
- the current density and the electrolysis time of the second-stage roughening process can be in the same ranges as those of the two-stage preceding-stage roughening process.
- the copper fine grains formed by the one-step roughening treatment are covered, and the copper fine grains are easily prevented from falling off.
- the copper foil and the method for producing the same according to the present invention can be used, for example, in the case of producing a printed wiring board or the like, for example, for a surface-treated copper foil or the like to be bonded to another material such as a pre-preda.
- the surface treatment equipment includes an acid pickling tank, a one-step roughening tank, a washing tank, a two-step roughening tank, a washing tank, and a hot-air dryer.
- Surface treatment An apparatus capable of continuously producing copper foil was used.
- an anode was arranged at a position opposed to the rough side of the copper foil at a certain distance from the copper foil.
- the two anodes are separated from each other in the flow direction of the copper foil, and of the two anodes, the anode on the unwinding side of the copper foil is defined as a one-stage pre-roughing treatment anode.
- the anode on the winding side of the copper foil was used as a post-stage roughing treatment anode.
- the pickling treatment tank, the first-stage roughening treatment tank, and the two-stage roughening treatment tank of the above-mentioned surface treatment apparatus are respectively provided with an acid cleaning treatment liquid having the following composition and a one-step roughening treatment liquid (one-step roughening treatment liquid).
- the roughening solution A) and the two-stage roughening solution (two-stage roughening solution A) were filled, and the two washing tanks were both filled with pure water.
- Dilute sulfuric acid was prepared by adding sulfuric acid to pure water.
- the first-stage roughening solution A having the following composition.
- two-stage roughening solution A having the following composition.
- the untreated copper foil was continuously unwound at a constant speed, and the untreated copper foil was subjected to pickling treatment, one-step roughening treatment, water washing under the following conditions. Step roughening treatment, water washing and drying treatment were performed to obtain a surface-treated copper foil.
- the untreated copper foil was immersed in the pickling solution for 5 seconds. (One-step roughening)
- a one-stage roughening treatment was performed.
- Table 1 shows the electrolysis conditions.
- the roughening treatment using the first-stage roughening anode of the above surface treatment equipment is referred to as the first-stage roughening treatment, and the roughening treatment performed using the first-stage roughening anode is the first-stage roughening treatment. It was processed.
- a two-stage roughening treatment was performed.
- Table 2 shows the electrolysis conditions.
- the roughening treatment using the two-stage pre-roughening anode of the above surface treatment equipment is referred to as the two-stage pre-roughening treatment, and the roughening treatment performed using the two-stage post-roughening anode is the second-stage roughening treatment. It was processed.
- the copper foil after the two-stage roughing treatment was immersed in pure water for 5 seconds.
- the copper foil after the two-stage roughening treatment was dried using a hot-air dryer.
- the obtained surface-treated copper foil (copper foil sample S) was also cut into square samples of 100 mm in length and 100 mm in width.
- the dry film resist is removed and the exposed copper foil portion is etched by spraying the salted copper on the single-sided copper-clad laminate, an aqueous NaOH solution is sprayed on the cured dry film resist portion.
- the portion was peeled off, and a plurality of rectangular circuits having a line width of 0.8 mm and a length of 100 mm were formed on the glass cloth substrate epoxy resin plate.
- the single-sided copper-clad laminate was cut so as to be separate for each circuit, and a plurality of samples for measuring the adhesive strength in which one rectangular circuit having a line width of 0.8 mm and a length of 100 mm were formed. did.
- the inner portion of the adhesive strength measurement sample which is about several mm in one end force in the longitudinal direction, is The circuit is bent in a direction substantially perpendicular to the length direction of the rectangular circuit and is bent so that the rectangular circuit is on the inside, and only the base portion is cut, and the rectangular circuit is connected and the base portion is cut.
- a sample for measuring the adhesive strength in the state as described above was produced.
- the adhesive strength measurement sample is placed on a peel strength measuring machine such that the rectangular circuit faces upward, and the sample is fixed. After the base material portion is cut, the peel strength measurement is performed. I was caught in the chuck of the machine. Next, the chuck is pulled up at a constant speed, the rectangular circuit is peeled off from the substrate of the adhesive strength measurement sample, and the peeling strength is measured, and the maximum value at that time is measured for the surface-treated copper foil ( The measured adhesive strength of the roughened surface of the copper foil sample S) was used.
- a surface-treated copper foil was obtained in the same manner as in Example 1, except that the electrolysis conditions for the one-step roughening treatment and the two-step roughening treatment were changed as shown in Tables 1 and 2.
- the roughness R, the three-dimensional surface area, and the measured adhesive strength were measured in the same manner as in Example 1.
- a surface-treated copper foil was obtained in the same manner as in Example 1, except that the electrolysis conditions for the one-step roughening treatment and the two-step roughening treatment were changed as shown in Tables 1 and 2.
- the roughness R, the three-dimensional surface area, and the measured adhesive strength were measured in the same manner as in Example 1.
- a surface-treated copper foil was obtained in the same manner as in Example 1, except that the electrolysis conditions for the one-step roughening treatment and the two-step roughening treatment were changed as shown in Tables 1 and 2.
- the roughness R, the three-dimensional surface area, and the measured adhesive strength were measured in the same manner as in Example 1.
- a surface-treated copper foil was obtained in the same manner as in Example 1, except that the electrolysis conditions for the one-step roughening treatment and the two-step roughening treatment were changed as shown in Tables 1 and 2.
- Roughened surface of the obtained surface-treated copper foil The roughness R, the three-dimensional surface area and the measured adhesive strength were measured in the same manner as in Example 1.
- a surface-treated copper foil was obtained in the same manner as in Example 1, except that the electrolysis conditions for the one-step roughening treatment and the two-step roughening treatment were changed as shown in Tables 1 and 2.
- the roughness R, 3 For the roughened surface of the obtained surface-treated copper foil, in the same manner as in Example 1, the roughness R, 3
- a one-step roughening treatment liquid (one-step roughening treatment liquid B) having the following composition was prepared.
- a surface-treated copper foil was obtained in the same manner as in Example 1, except that the solution B was used and the electrolysis conditions for the one-step roughening treatment and the two-step roughening treatment were changed as shown in Tables 1 and 2.
- the roughness R, the three-dimensional surface area, and the measured adhesive strength were measured in the same manner as in Example 1, and the area coefficient was calculated.
- one-stage roughening solution B having the following composition.
- the above-described one-stage roughening treatment solution B was used as the one-stage roughening treatment solution, and the electrolysis conditions for the one-stage roughening treatment and the two-stage roughening treatment were changed as shown in Tables 1 and 2. Except for the above, a surface-treated copper foil was obtained in the same manner as in Example 1. With respect to the roughened surface of the obtained surface-treated copper foil, the roughness R, the three-dimensional surface area, and the measured adhesive strength were measured in the same manner as in Example 1, and the area coefficient was calculated.
- the one-stage roughening treatment liquid As the one-stage roughening treatment liquid, the above-mentioned one-stage roughening treatment liquid B was used, and a one-step roughening treatment and a two-step roughening treatment were performed.
- a surface-treated copper foil was obtained in the same manner as in Example 1, except that the electrolysis conditions for the roughening treatment were changed as shown in Tables 1 and 2. With respect to the roughened surface of the obtained surface-treated copper foil, the roughness R, the three-dimensional surface area, and the measured adhesive strength were measured in the same manner as in Example 1, and the area coefficient was calculated.
- the above-mentioned one-stage roughening treatment solution B was used as the one-stage roughening treatment solution, and the electrolysis conditions for the one-stage roughening treatment and the two-stage roughening treatment were changed as shown in Tables 1 and 2. Except for the above, a surface-treated copper foil was obtained in the same manner as in Example 1. With respect to the roughened surface of the obtained surface-treated copper foil, the roughness R, the three-dimensional surface area, and the measured adhesive strength were measured in the same manner as in Example 1, and the area coefficient was calculated.
- the above-mentioned one-stage roughening treatment solution B was used as the one-stage roughening treatment solution, and the electrolysis conditions for the one-stage roughening treatment and the two-stage roughening treatment were changed as shown in Tables 1 and 2. Except for the above, a surface-treated copper foil was obtained in the same manner as in Example 1. With respect to the roughened surface of the obtained surface-treated copper foil, the roughness R, the three-dimensional surface area, and the measured adhesive strength were measured in the same manner as in Example 1, and the area coefficient was calculated.
- Example 1 (° C) (A / dm 2 ), sec) (A / dm 2 ) i ⁇ sec)
- Example 1 A 30 25 5 7 5
- Example 2 A 30 25 4 7 4
- Example 3 A 30 22 5 6 5
- Example 4 A 30 22 4 6 4
- Example 5 A 30 1 9 5 5 5
- Example 6 A 30 1 9 4 5 4
- Comparative example 1 B 30 35 5 F 5 Comparative example 2 B 30 29 5 7 5 Comparative example 3 B 30 22 5 5 5 5 5 Comparative Example 4 B 30 1 6 5 1 5 Comparative Example 5 B 30 1 0 5 1 5
- FIG. 1 shows the relationship between the area coefficient and R in Examples 1 to 6 and Comparative Examples 1 to 5.
- FIG. 1 is a graph showing the relationship between the area coefficient and R in Examples 1 to 6 and Comparative Examples 1 to 5 with the vertical axis representing the area coefficient and the horizontal axis representing Rm).
- reference symbol A denotes a straight line calculated by linear approximation for the group of Examples 1 to 6 (hereinafter also referred to as “group A”), and the straight line is represented by the following equation (7). It is.
- symbol B is a straight line calculated by linear approximation for the groups of Comparative Examples 1 to 5 (hereinafter, also referred to as “group B”). It is represented by
- reference symbol C is a straight line represented by the above equation (4).
- C (S) is the area factor of copper foil sample S, and R (S) is measured using a stylus-type roughness meter.
- the roughness ( ⁇ m) of the obtained copper foil sample S is shown. )
- C (S) is the area factor of copper foil sample S, and R (S) is measured using a stylus-type roughness meter.
- FIG. 2 shows the relationship between the measured adhesive strength and the area coefficient in Examples 1 to 6 and Comparative Examples 1 to 5.
- FIG. 2 is a graph showing the relationship between the measured adhesive strength and the area coefficient in Examples 1 to 6 and Comparative Examples 1 to 5 with the vertical axis representing the measured adhesive strength (kgfZcm) and the horizontal axis representing the area coefficient. It is.
- FIG. 3 shows the relationship between the measured bond strength and R in Examples 1 to 6 and Comparative Examples 1 to 5 with the measured bond strength (kgf Zcm) on the vertical axis and Rm on the horizontal axis.
- FIG. 3 shows the relationship between the measured bond strength and R in Examples 1 to 6 and Comparative Examples 1 to 5 with the measured bond strength (kgf Zcm) on the vertical axis and Rm on the horizontal axis.
- the adhesive strength P (S) is about 1.14 kgfZcm (Comparative Example 1) or 1.11 kgfZcm (Comparative Example 2), and R is higher than Group A, but the measured adhesive strength P (S) is about the same as Group A.
- the copper foil and the method for producing the same according to the present invention can be used for producing a surface-treated copper foil with low roughness used as a raw material for producing a printed wiring board and the like, and for producing the same.
- FIG. 2 shows the relationship between the measured adhesive strength and the area coefficient in Examples 1 to 6 and Comparative Examples 1 to 5 with the vertical axis representing the measured adhesive strength (kgfZcm) and the horizontal axis representing the area coefficient. It is a graph represented as.
- FIG. 3 shows measured adhesive strengths in Examples 1 to 6 and Comparative Examples 1 to 5.
- the vertical axis represents the measured adhesive strength (kgfZcm), and the horizontal axis represents Rm).
- FIG. 1 A first figure.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Electroplating Methods And Accessories (AREA)
- Parts Printed On Printed Circuit Boards (AREA)
- Manufacturing Of Printed Wiring (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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US11/547,517 US7749610B2 (en) | 2004-04-02 | 2005-03-31 | Copper foil and method of manufacturing the same |
CN2005800106132A CN1938456B (zh) | 2004-04-02 | 2005-03-31 | 铜箔及其制造方法 |
EP05727969.7A EP1748092B1 (en) | 2004-04-02 | 2005-03-31 | Copper foil and its manufacturing method |
Applications Claiming Priority (2)
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JP2004110485A JP4567360B2 (ja) | 2004-04-02 | 2004-04-02 | 銅箔の製造方法及びその製造方法で得られる銅箔 |
JP2004-110485 | 2004-04-02 |
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WO2005095677A1 true WO2005095677A1 (ja) | 2005-10-13 |
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PCT/JP2005/006293 WO2005095677A1 (ja) | 2004-04-02 | 2005-03-31 | 銅箔及びその製造方法 |
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US (1) | US7749610B2 (ja) |
EP (1) | EP1748092B1 (ja) |
JP (1) | JP4567360B2 (ja) |
KR (1) | KR100860906B1 (ja) |
CN (1) | CN1938456B (ja) |
TW (1) | TWI308471B (ja) |
WO (1) | WO2005095677A1 (ja) |
Families Citing this family (19)
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JP5129642B2 (ja) * | 2007-04-19 | 2013-01-30 | 三井金属鉱業株式会社 | 表面処理銅箔及びその表面処理銅箔を用いて得られる銅張積層板並びにその銅張積層板を用いて得られるプリント配線板 |
JP5215631B2 (ja) * | 2007-10-24 | 2013-06-19 | 三井金属鉱業株式会社 | 表面処理銅箔 |
JP5255349B2 (ja) * | 2008-07-11 | 2013-08-07 | 三井金属鉱業株式会社 | 表面処理銅箔 |
JP5400447B2 (ja) * | 2009-03-31 | 2014-01-29 | 三井金属鉱業株式会社 | 粗化処理銅箔、粗化処理銅箔の製造方法及び銅張積層板 |
KR102128954B1 (ko) * | 2012-06-06 | 2020-07-01 | 미쯔비시 가스 케미칼 컴파니, 인코포레이티드 | 프린트 배선판용 동박, 그 제조방법, 및 그 동박을 사용한 프린트 배선판 |
JP6225467B2 (ja) * | 2012-06-06 | 2017-11-08 | 三菱瓦斯化学株式会社 | プリント配線板用銅箔およびその製造方法ならびにその銅箔を用いたプリント配線板 |
JP6276499B2 (ja) * | 2012-08-07 | 2018-02-07 | 味の素株式会社 | 接着フィルム、硬化体の製造方法、硬化体、配線板、及び半導体装置 |
JP5481577B1 (ja) * | 2012-09-11 | 2014-04-23 | Jx日鉱日石金属株式会社 | キャリア付き銅箔 |
JP5481591B1 (ja) * | 2012-09-11 | 2014-04-23 | Jx日鉱日石金属株式会社 | キャリア付き銅箔 |
TWI509111B (zh) * | 2012-11-26 | 2015-11-21 | Jx Nippon Mining & Metals Corp | Surface treatment of electrolytic copper foil, laminated board, and printed wiring board, electronic equipment |
US9955583B2 (en) | 2013-07-23 | 2018-04-24 | Jx Nippon Mining & Metals Corporation | Surface-treated copper foil, copper foil with carrier, substrate, resin substrate, printed wiring board, copper clad laminate and method for producing printed wiring board |
JP2016121394A (ja) * | 2014-12-23 | 2016-07-07 | エル エス エムトロン リミテッドLS Mtron Ltd. | 電解銅箔、これを含むfccl及びccl |
JP6945523B2 (ja) * | 2016-04-14 | 2021-10-06 | 三井金属鉱業株式会社 | 表面処理銅箔、キャリア付銅箔、並びにそれらを用いた銅張積層板及びプリント配線板の製造方法 |
KR101733410B1 (ko) * | 2016-11-11 | 2017-05-10 | 일진머티리얼즈 주식회사 | 저온 물성이 우수한 이차전지용 전해동박 및 그의 제조방법 |
KR102180926B1 (ko) | 2017-06-28 | 2020-11-19 | 에스케이넥실리스 주식회사 | 우수한 작업성 및 충방전 특성을 갖는 동박, 그것을 포함하는 전극, 그것을 포함하는 이차전지, 및 그것의 제조방법 |
HUE060765T2 (hu) * | 2018-08-10 | 2023-04-28 | Sk Nexilis Co Ltd | Megmunkálhatósági és töltési/kisülési jellemzõkkel rendelkezõ rézfólia, az azt tartalmazó elektróda, az azt tartalmazó másodlagos akkumulátor és annak elõállítási eljárása |
TWI668333B (zh) * | 2018-09-17 | 2019-08-11 | 金居開發股份有限公司 | 微粗糙電解銅箔及銅箔基板 |
US10581081B1 (en) | 2019-02-01 | 2020-03-03 | Chang Chun Petrochemical Co., Ltd. | Copper foil for negative electrode current collector of lithium ion secondary battery |
WO2020246467A1 (ja) * | 2019-06-07 | 2020-12-10 | 古河電気工業株式会社 | 表面処理銅箔、銅張積層板、及びプリント配線板 |
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- 2004-04-02 JP JP2004110485A patent/JP4567360B2/ja not_active Expired - Lifetime
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2005
- 2005-03-31 WO PCT/JP2005/006293 patent/WO2005095677A1/ja active Application Filing
- 2005-03-31 US US11/547,517 patent/US7749610B2/en not_active Expired - Fee Related
- 2005-03-31 CN CN2005800106132A patent/CN1938456B/zh active Active
- 2005-03-31 TW TW094110272A patent/TWI308471B/zh active
- 2005-03-31 EP EP05727969.7A patent/EP1748092B1/en active Active
- 2005-03-31 KR KR1020067022828A patent/KR100860906B1/ko active IP Right Grant
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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 |
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Also Published As
Publication number | Publication date |
---|---|
CN1938456B (zh) | 2010-09-15 |
US7749610B2 (en) | 2010-07-06 |
KR20070007881A (ko) | 2007-01-16 |
JP4567360B2 (ja) | 2010-10-20 |
JP2005290519A (ja) | 2005-10-20 |
US20080280159A1 (en) | 2008-11-13 |
TWI308471B (en) | 2009-04-01 |
TW200541429A (en) | 2005-12-16 |
KR100860906B1 (ko) | 2008-09-29 |
EP1748092B1 (en) | 2016-04-27 |
EP1748092A1 (en) | 2007-01-31 |
EP1748092A4 (en) | 2007-09-05 |
CN1938456A (zh) | 2007-03-28 |
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