WO2021153257A1 - 電解銅箔 - Google Patents
電解銅箔 Download PDFInfo
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- WO2021153257A1 WO2021153257A1 PCT/JP2021/001103 JP2021001103W WO2021153257A1 WO 2021153257 A1 WO2021153257 A1 WO 2021153257A1 JP 2021001103 W JP2021001103 W JP 2021001103W WO 2021153257 A1 WO2021153257 A1 WO 2021153257A1
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- copper foil
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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
- C25D5/60—Electroplating characterised by the structure or texture of the layers
- C25D5/605—Surface topography of the layers, e.g. rough, dendritic or nodular layers
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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
- C25D1/00—Electroforming
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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
- C25D5/60—Electroplating characterised by the structure or texture of the layers
- C25D5/615—Microstructure of the layers, e.g. mixed structure
- C25D5/617—Crystalline layers
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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
- C25D7/0614—Strips or foils
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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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- 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
Definitions
- the present invention relates to an electrolytic copper foil, particularly an electrolytic copper foil used for a flexible substrate.
- Patent Document 1 Japanese Unexamined Patent Publication No. 2006-52441 discloses a copper foil in which the Cl content in the untreated copper foil is less than 30 ppm.
- Patent Document 2 Japanese Unexamined Patent Publication No. 7-268678
- each peak value of the X-ray diffraction intensity of the (111) plane and the (220) plane of the copper foil measured from the electrolysis end surface side is a predetermined condition.
- electrolytic copper foil satisfying the above conditions is disclosed, and the electrolytic copper foil has a lead ion concentration of 3 ppm or less, a tin ion concentration of 6 ppm or less, a chlorine ion concentration of 2 ppm or less, a silicon ion concentration of 15 ppm or less, and a calcium ion concentration of 30 ppm or less. And it is disclosed that it is produced by using a copper electrolytic solution in which the arsenic ion concentration is controlled to 7 ppm or less.
- Patent Document 3 Japanese Unexamined Patent Publication No. 2018-178261
- the lightness L * value on the side not roughened is 75 to 90 based on (a) L * a * b color system.
- an electrolytic copper foil having a tensile strength of 40 kgf / mm 2 or more and 55 kgf / mm 2 or less is disclosed, and has a low angle grain boundary (LAGB) measured by electron backscatter diffraction (EBSD). It is said that the percentage is preferably less than 7.0%.
- LAGB low angle grain boundary
- EBSD electron backscatter diffraction
- This document describes electrolytic copper foils using plating solutions with chloride ion concentrations of 10 ppm, 15 ppm or 20 ppm and current densities of 60 A / dm 2 , 70 A / dm 2 or 80 A / dm 2 in the initial copper plating process. It is stated that it was manufactured.
- the copper foil used for flexible substrates is required to have flexibility that allows it to be freely bent by an external force.
- chlorine-free copper foil having a certain degree of smoothness and flexibility exists, further improvement in smoothness and flexibility is required.
- Copper foil generally has the property that tensile strength is reduced and flexibility is increased by annealing, but electrolytic copper foil has a tensile strength after annealing (for example, 180 ° C. for 1 hour) as compared with rolled copper foil.
- the present inventors have now developed high flexibility suitable for flexible substrates (particularly annealing at 180 ° C. for 1 hour) while having a high degree of smoothness with a ten-point average roughness Rz of 0.1 ⁇ m or more and 2.0 ⁇ m or less. We have obtained the finding that it is possible to provide an electrolytic copper foil that exhibits high flexibility after being made.
- an object of the present invention is to provide an electrolytic copper foil having a high degree of smoothness, yet exhibiting high flexibility suitable for a flexible substrate (particularly high flexibility after being annealed at 180 ° C. for 1 hour). There is.
- the electrolytic copper foil having a ten-point average roughness Rz of at least one surface of 0.1 ⁇ m or more and 2.0 ⁇ m or less.
- the tensile strength measured according to IPC-TM-650 is 56 kgf / mm 2 or more and less than 65 kgf / mm 2.
- a flexible substrate containing an electrolytic copper foil, which comprises the electrolytic copper foil.
- the "electrode surface” of the electrolytic copper foil refers to the surface on the side in contact with the cathode during the production of the electrolytic copper foil.
- the "precipitation surface” of the electrolytic copper foil refers to the surface on the side where the electrolytic copper is deposited during the production of the electrolytic copper foil, that is, the surface on the side not in contact with the cathode.
- the copper foil according to the present invention is an electrolytic copper foil.
- the electrolytic copper foil has a ten-point average roughness Rz of at least one surface of 0.1 ⁇ m or more and 2.0 ⁇ m or less. Then, electrolytic copper foil, in a normal state where no through annealing, tensile strength as measured in accordance with IPC-TM-650 is less than 56kgf / mm 2 or more 65 kgf / mm 2, and are annealed for 1 hour at 180 ° C. definitive after the tensile strength as measured in accordance with IPC-TM-650 is a 15 kgf / mm 2 or more 25 kgf / mm less than 2.
- the ten-point average roughness Rz has a high degree of smoothness of 0.1 ⁇ m or more and 2.0 ⁇ m or less, and yet has high flexibility suitable for a flexible substrate (particularly 1 at 180 ° C.). It is possible to provide an electrolytic copper foil that exhibits high flexibility after time annealing).
- copper foil generally has the property that tensile strength is reduced and flexibility is increased by annealing, but electrolytic copper foil is annealed (for example, at 180 ° C. for 1 hour) as compared with rolled copper foil. ) Later tensile strength tends to be relatively high, that is, inflexible. Therefore, an electrolytic copper foil having a significantly low tensile strength (that is, high flexibility) after annealing is desired. However, it is difficult to control the tensile strength after annealing with an electrolytic copper foil having a low roughness surface with a ten-point average roughness Rz of 0.1 ⁇ m or more and 2.0 ⁇ m or less, and it is not easy to achieve both smoothness and flexibility. The current situation. In this respect, according to the electrolytic copper foil of the present invention, both smoothness and flexibility can be conveniently realized.
- the electrolytic copper foil preferably has a ten-point average roughness Rz of at least one surface of 0.1 ⁇ m or more and 2.0 ⁇ m or less, more preferably 0.3 ⁇ m or more and 2.0 ⁇ m or less, and further preferably 0.3 ⁇ m or more 1 It is 0.8 ⁇ m or less, particularly preferably 0.6 ⁇ m or more and 1.5 ⁇ m or less, and most preferably 0.6 ⁇ m or more and 1.2 ⁇ m or less.
- the electrolytic copper foil having a low roughness surface is advantageous in that the starting point of fracture is small.
- the "ten-point average roughness Rz" is measured in accordance with JIS-B0601: 1982, and corresponds to Rzjis in JIS-B0601: 2001.
- both sides of the electrolytic copper foil have a ten-point average roughness Rz within the above range. That is, the ten-point average roughness Rz on both sides of the electrolytic copper foil is preferably 0.1 ⁇ m or more and 2.0 ⁇ m or less, more preferably 0.3 ⁇ m or more and 2.0 ⁇ m or less, and further preferably 0.3 ⁇ m or more and 1.8 ⁇ m. Hereinafter, it is particularly preferably 0.6 ⁇ m or more and 1.5 ⁇ m or less, and most preferably 0.6 ⁇ m or more and 1.2 ⁇ m or less. As described above, the electrolytic copper foil having a low roughness surface on both sides is advantageous in that the starting point of fracture is reduced.
- the tensile strength of the electrolytic copper foil in the normal state without annealing is 56 kgf / mm 2 or more and less than 65 kgf / mm 2 , preferably 57 kgf / mm 2 or more and 64 kgf / mm 2 or less, more preferably 59 kgf / mm 2 or more and 64 kgf / mm 2. or less, more preferably 60 kgf / mm 2 or more 64kgf / mm 2 or less. Further, tensile strength of the electrolytic copper foil after being annealed for 1 hour at 180 ° C.
- ⁇ is less than 15 kgf / mm 2 or more 25 kgf / mm 2, preferably 15 kgf / mm 2 or more 24.5kgf / mm 2 or less, more preferably 16 kgf / mm 2 or more 24.5kgf / mm 2 or less, more preferably 16 kgf / mm 2 or more 24kgf / mm 2 or less.
- annealing for example, 180 ° C. for 1 hour
- Both the normal tensile strength without annealing and the tensile strength after annealing are measured at room temperature (for example, 25 ° C.) in accordance with IPC-TM-650.
- vertically long crystals vertically long columnar crystals
- This vertically elongated crystal-rich microstructure has a high degree of smoothness with a ten-point average roughness Rz of 0.1 ⁇ m or more and 2.0 ⁇ m or less, and high flexibility suitable for flexible substrates (particularly annealed at 180 ° C. for 1 hour). It is thought that it contributes to both the later high flexibility).
- the vertically elongated crystal has the following conditions: i) Oriented to (101), ii) Aspect ratio is 0.500 or less, iii) When the angle formed by the normal of the electrode surface of the electrolytic copper foil and the long axis of the copper crystal grains is ⁇ (°),
- the electrolytic copper foil of the present invention has the conditions from i) to iv) of the area of the observation field (for example, width 10 ⁇ m ⁇ height 28 ⁇ m) occupied by the copper crystal grains when the cross section is analyzed by EBSD.
- the ratio of the area occupied by the copper crystal grains satisfying all of them is 63% or more, more preferably 63% or more and 90% or less, further preferably 63% or more and 85% or less, and particularly preferably 63%. It is 80% or more, most preferably 63% or more and 75% or less.
- the ten-point average roughness Rz is 0.1 ⁇ m or more and 2.0 ⁇ m or less, which is a high degree of smoothness, and high flexibility suitable for a flexible substrate (especially after being annealed at 180 ° C. for 1 hour). (High flexibility) can be preferably realized.
- a rectangular region having a width ⁇ height satisfying the conditions shown in Table 1 shall be specified.
- the field of view Upon specific width in EBSD observation field, the region up to 3 ⁇ m in thickness direction position away 3 ⁇ m in thickness direction from the electrode surface of the copper foil from the reference position P 0 and to have (i.e. the electrode surface of the copper foil Is excluded from) by excluding the surface layer region on the side where the copper crystal grains are relatively or excessively fine due to the influence of the cathode (particularly its structure) used in the production of the electrolytic copper foil. This is to secure an EBSD observation field that more representatively reflects the main part in the thickness direction of the foil.
- CP cross-section polisher
- SUPRA55VP manufactured by Carl Zeiss
- the aspect ratio is 0.500 or less
- is 0.001 or more and 0.707 or less
- the minor axis length when the crystal grains are elliptical approximated is 0.38 ⁇ m.
- Crystals satisfying all of the following are further extracted (see Examples described later for detailed setting conditions), and the sum of their areas ( ⁇ m 2 ) is obtained as the area of the vertically elongated crystal grains. In this way, the crystal grain regions satisfying the above conditions of ii), iii) and iv) are extracted.
- the thickness of the electrolytic copper foil is not particularly limited, but is preferably 5 ⁇ m or more and 35 ⁇ m or less, more preferably 7 ⁇ m or more and 35 ⁇ m or less, still more preferably 9 ⁇ m or more and 18 ⁇ m or less, and particularly preferably 12 ⁇ m or more and 18 ⁇ m or less.
- the electrolytic copper foil are surface-treated.
- This surface treatment can be a surface treatment as is generally performed on electrolytic copper foil.
- preferable surface treatments include roughening treatments, rust prevention treatments (for example, zinc plating treatments and zinc alloy plating treatments such as zinc-nickel alloy treatments), silane coupling agent treatments, and the like.
- the electrolytic copper foil may be provided in the form of a copper foil with a carrier.
- the electrolytic copper foil of the present invention is shown in Table 2 using the copper (Cu) concentration, sulfuric acid (H 2 SO 4 ) concentration and chlorine (Cl) concentration copper electrolytic solution (aqueous solution) shown in Table 2. It can be produced by maintaining the bath temperature (the temperature of the aqueous solution) and performing electrolytic precipitation at the current densities shown in Table 2. That is, by satisfying the conditions of these copper electrolyte compositions, bath temperature, and current density, the ten-point average roughness Rz on the precipitation surface (or both the precipitation surface and the electrode surface) is 0.1 ⁇ m or more and 2.0 ⁇ m or less.
- the copper electrolytic solution used in this production method is a chlorine-free electrolytic solution containing as little chlorine as possible.
- the following conditions i) Oriented to (101), ii) Aspect ratio is 0.500 or less, iii) When the angle formed by the normal of the electrode surface of the electrolytic copper foil and the long axis of the copper crystal grain is ⁇ (°),
- the area occupied by the copper crystal grains satisfying all of the minor axis lengths of 0.38 ⁇ m or less (hereinafter referred to as the area of the vertically long crystal grains) was determined through the following primary extraction and secondary extraction.
- the aspect ratio is 0.500 or less
- is 0.001 or more and 0.707 or less
- Crystals satisfying all of the minor axis lengths of 0.38 ⁇ m or less when the crystal grains were elliptical approximated were further extracted, and the total value ( ⁇ m 2 ) of these areas was obtained as the area of the vertically long crystal grains. That is, the setting conditions for OIM Analysis 7 are as shown in Table 3.
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Abstract
Description
アニールを経ていない常態において、IPC-TM-650に準拠して測定される抗張力が56kgf/mm2以上65kgf/mm2未満であり、かつ、
180℃で1時間アニールされた後における、IPC-TM-650に準拠して測定される抗張力が、15kgf/mm2以上25kgf/mm2未満である、電解銅箔が提供される。
本明細書において、電解銅箔の「電極面」とは、電解銅箔製造時に陰極と接していた側の面を指す。また、本明細書において、電解銅箔の「析出面」とは、電解銅箔製造時に電解銅が析出されていく側の面、すなわち陰極と接していない側の面を指す。
本発明による銅箔は電解銅箔である。この電解銅箔は、少なくとも一方の表面の十点平均粗さRzが0.1μm以上2.0μm以下である。そして、電解銅箔は、アニールを経ていない常態において、IPC-TM-650に準拠して測定される抗張力が56kgf/mm2以上65kgf/mm2未満であり、かつ、180℃で1時間アニールされた後における、IPC-TM-650に準拠して測定される抗張力が、15kgf/mm2以上25kgf/mm2未満である。このように、本発明によれば、十点平均粗さRzが0.1μm以上2.0μm以下という高度な平滑性を有しながらも、フレキシブル基板に適した高い柔軟性(とりわけ180℃で1時間アニールされた後の高い柔軟性)を呈する電解銅箔を提供することができる。
i)(101)に配向している、
ii)アスペクト比が0.500以下、
iii)前記電解銅箔の電極面の法線と銅結晶粒の長軸がなす角度をθ(°)としたとき、|sinθ|が0.001以上0.707以下、及び
iv)結晶を楕円近似した際の短軸長さが0.38μm以下
を満たすものとして特定することができる。
・条件i)に基づく一次抽出:
観察視野のEBSD像において、EBSD解析ソフトウエア(OIM Analysis 7、株式会社TSLソリューションズ製)を用いて解析を行い、(h,k,l)=(1,0,1)に配向している結晶を抽出する(詳細な設定条件は後述する実施例を参照)。こうして上位i)の条件を満たす結晶粒領域を抽出する。
・条件ii)、iii)及びiv)に基づく二次抽出:
一次抽出で得られたデータから、アスペクト比が0.500以下、長軸傾き|sinθ|が0.001以上0.707以下、及び結晶粒を楕円近似した際の短軸長さが0.38μm以下の全てを満たす結晶をさらに抽出し(詳細な設定条件は後述する実施例を参照)、それらの面積を合算した値(μm2)を縦長結晶粒の面積として得る。こうして上記ii)、iii)及びiv)の条件を満たす結晶粒領域を抽出する。
・縦長結晶比率の算出:
二次抽出で得られた縦長結晶粒の面積SVC(μm2)と、観察視野の面積SOA(μm2)とを用いて、銅結晶粒の占める面積のうち縦長結晶粒の占める割合を100×SVC/SOAの式により算出して、縦長結晶比率(%)とする(設定条件は後述する実施例を参照)。
本発明の電解銅箔は、表2に示される銅(Cu)濃度、硫酸(H2SО4)濃度及び塩素(Cl)濃度の銅電解液(水溶液)を用いて、表2に示される浴温(水溶液の温度)に保持し、表2に示される電流密度で電解析出を行うことにより製造することができる。すなわち、これらの銅電解液組成、浴温及び電流密度の条件を満たすことで、析出面(又は析出面及び電極面の両方)に十点平均粗さRzが0.1μm以上2.0μm以下という高度な平滑性を有しながらも、フレキシブル基板に適した高い柔軟性(とりわけ180℃で1時間アニールされた後の高い柔軟性)を呈する電解銅箔を製造することができる。表2に示されるように、この製造方法に用いる銅電解液は塩素を極力含まない塩素フリーの電解液であるのが望ましい。
(1)電解銅箔の製造
銅電解液として表4に示される組成の硫酸酸性硫酸銅溶液(塩素無添加)を用い、陰極にチタン製の板状電極(表面粗さRa=0.19μm、JIS-B0601:1982に準拠)を用い、陽極にはDSA(寸法安定性陽極)を用いて、表4に示される浴温及び電流密度で電解し、厚さ18μmの電解銅箔を得た。
得られた電解銅箔に対して、十点平均粗さRzの測定、EBSDによる断面解析、及び抗張力の測定を以下のようにして行った。
表面粗さ測定機(サーフコーダSE-30H、株式会社小坂研究所製)を用いてJIS-B0601:1982に準拠して、λc:0.8μm、基準長さ:0.8mm、送り速さ:0.1mm/sの条件で、電解銅箔の析出面の十点平均粗さRz(JIS-B0601:2001におけるRzjisに相当)を測定した。結果は表4に示されるとおりであった。
4つの電解銅箔サンプルを重ね合わせて接着剤(ロックタイト(登録商標)、ヘンケルジャパン株式会社製)で貼り合わせた後、保護層として紫外線硬化樹脂をサンプル表面に塗布した。サンプル全体をカーボンでコートした後、ブロードアルゴンイオンビーム断面加工(クロスセクションポリッシャ(CP)(登録商標)、日本電子株式会社製)(加速電圧:5kV)を3時間実施してEBSD測定用の研磨断面を得た。EBSD観察に際して、カーボンコート(1フラッシュ)を実施した。EBSD装置(FE-SEM装置(SUPRA55VP、Carl Zeiss社製)にEBSD測定器(Pegasus、アメテック株式会社製)を搭載した装置)を用いて、Vacc.=20kV、Apt.=60μm、H.C.モード、Tilt=70°、及びScan Phase=CuのSEM条件で研磨断面のEBSD解析を行った。EBSDにおける観察視野は(前述した表1に示される条件に従い)幅10μm×高さ28μmとした。観察視野のEBSD像において、以下の条件:
i)(101)に配向している、
ii)アスペクト比が0.500以下、
iii)電解銅箔の電極面の法線と銅結晶粒の長軸がなす角度をθ(°)としたとき、|sinθ|が0.001以上0.707以下、及び
iv)結晶を楕円近似した際の短軸長さが0.38μm以下
の全てを満たす銅結晶粒の占める面積(以下、縦長結晶粒の面積という)を以下の一次抽出及び二次抽出を経て決定した。
観察視野のEBSD像に対してEBSD解析ソフトウエア(OIM Analysis 7、株式会社TSLソリューションズ製)を用いて解析を行い、(hkl)=(101)に配向している結晶を抽出した。具体的には、OIM Analysis 7の画面において、[All data]の[プロパティ]から[Crystal Orientation]で[(h,k,l)=(1,0,1)]を選択し、[Deviation]の数値を60未満とし、[Crystal Deviation]で(h,k,l)=(1,0,1)を選択し、[Deviation]の数値を12未満として[Grain data]、すなわち粒子データを抽出した。このとき、OIM Analysis 7の設定条件は、以下のとおりとした。
PCO[Copper,0.000,45.000,90.000]<60
AND PCD[Copper,1,0,1,0,0,1]<12
上記のようにして抽出したデータから、アスペクト比が0.500以下、長軸傾き|sinθ|が0.001以上0.707以下、及び結晶粒を楕円近似した際の短軸長さが0.38μm以下の全てを満たす結晶をさらに抽出し、それらの面積を合算した値(μm2)を縦長結晶粒の面積として得た。すなわち、OIM Analysis 7の設定条件は表3のとおりとした。
一次抽出及び二次抽出を経て得られた縦長結晶粒の面積SVC(μm2)と、観察視野の面積SOA(μm2)とを用いて、銅結晶粒の占める面積のうち縦長結晶粒の占める割合を100×SVC/SOAの式により算出して、縦長結晶比率(%)とした。結果は表4に示されるとおりであった。
アニールを施していない電解銅箔サンプルを10mm×100mmのサイズに切断して試験片を得た。この試験片を、測定装置(AGI-1KNM1、株式会社島津製作所製)にセットし、引張速度:50mm/min、フルスケール試験力:50Nの条件で、IPC-TM-650に準拠して常態の抗張力(引張強さ)を室温(約25℃)で測定した。結果は表4に示されるとおりであった。
180℃で1時間アニールされた後の電解銅箔サンプルを10mm×100mmのサイズに切断して試験片を得た。この試験片を用いて上記常態抗張力の測定と同一の条件で抗張力を測定し、熱後抗張力を測定した。結果は表4に示されるとおりであった。
Claims (4)
- 少なくとも一方の表面の十点平均粗さRzが0.1μm以上2.0μm以下である、電解銅箔であって、
アニールを経ていない常態において、IPC-TM-650に準拠して測定される抗張力が56kgf/mm2以上65kgf/mm2未満であり、かつ、
180℃で1時間アニールされた後における、IPC-TM-650に準拠して測定される抗張力が、15kgf/mm2以上25kgf/mm2未満である、電解銅箔。 - 前記電解銅箔の両面の十点平均粗さRzが0.1μm以上2.0μm以下である、請求項1に記載の電解銅箔。
- 電子線後方散乱回折法(EBSD)により断面解析した場合に、銅結晶粒で占められる観察視野の面積のうち、以下の条件:
i)(101)に配向している、
ii)アスペクト比が0.500以下、
iii)前記電解銅箔の電極面の法線と銅結晶粒の長軸がなす角度をθ(°)としたとき、|sinθ|が0.001以上0.707以下、及び
iv)結晶を楕円近似した際の短軸長さが0.38μm以下
の全てを満たす銅結晶粒の占める面積の割合が、63%以上である、請求項1又は2に記載の電解銅箔。
電解銅箔。 - 請求項1~3のいずれか一項に記載の電解銅箔を含む、フレキシブル基板。
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HU2200353A HUP2200353A2 (en) | 2020-01-30 | 2021-01-14 | Electrolytic copper foil |
PL441866A PL245191B1 (pl) | 2020-01-30 | 2021-01-14 | Elektrolityczna folia miedziana |
CN202180007684.6A CN114901872B (zh) | 2020-01-30 | 2021-01-14 | 电解铜箔 |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05502062A (ja) * | 1990-05-30 | 1993-04-15 | ジーエイテック インコーポレイテッド | 電着された銅箔およびこれを低塩素イオン濃度の電解質溶液を用いて製造する方法 |
JPH10330983A (ja) * | 1997-05-30 | 1998-12-15 | Fukuda Metal Foil & Powder Co Ltd | 電解銅箔及びその製造方法 |
JP2004339558A (ja) * | 2003-05-14 | 2004-12-02 | Fukuda Metal Foil & Powder Co Ltd | 低粗面電解銅箔及びその製造方法 |
WO2012002526A1 (ja) * | 2010-07-01 | 2012-01-05 | 三井金属鉱業株式会社 | 電解銅箔及びその製造方法 |
WO2014119355A1 (ja) * | 2013-01-29 | 2014-08-07 | 古河電気工業株式会社 | 電解銅箔及びその製造方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2754157B2 (ja) | 1994-03-31 | 1998-05-20 | 三井金属鉱業株式会社 | プリント配線板用電解銅箔の製造方法 |
TW432124B (en) * | 1996-05-13 | 2001-05-01 | Mitsui Mining & Amp Smelting C | Electrolytic copper foil with high post heat tensile strength and its manufacturing method |
JP4549774B2 (ja) | 2004-08-11 | 2010-09-22 | 三井金属鉱業株式会社 | 電解銅箔の製造方法 |
KR100941219B1 (ko) * | 2005-03-31 | 2010-02-10 | 미쓰이 긴조꾸 고교 가부시키가이샤 | 전해 동박, 그 전해 동박을 이용하여 얻어진 표면 처리 전해 동박, 그 표면 처리 전해 동박을 이용한 동장 적층판 및 프린트 배선판 |
CN102225641B (zh) * | 2005-04-04 | 2014-06-25 | 宇部兴产株式会社 | 敷铜层压体 |
JP2007146289A (ja) * | 2005-10-31 | 2007-06-14 | Mitsui Mining & Smelting Co Ltd | 電解銅箔の製造方法、該製造方法で得られる電解銅箔、該電解銅箔を用いて得られる表面処理銅箔及び該電解銅箔又は該表面処理銅箔を用いて得られる銅張積層板 |
US10190225B2 (en) | 2017-04-18 | 2019-01-29 | Chang Chun Petrochemical Co., Ltd. | Electrodeposited copper foil with low repulsive force |
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Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05502062A (ja) * | 1990-05-30 | 1993-04-15 | ジーエイテック インコーポレイテッド | 電着された銅箔およびこれを低塩素イオン濃度の電解質溶液を用いて製造する方法 |
JPH10330983A (ja) * | 1997-05-30 | 1998-12-15 | Fukuda Metal Foil & Powder Co Ltd | 電解銅箔及びその製造方法 |
JP2004339558A (ja) * | 2003-05-14 | 2004-12-02 | Fukuda Metal Foil & Powder Co Ltd | 低粗面電解銅箔及びその製造方法 |
WO2012002526A1 (ja) * | 2010-07-01 | 2012-01-05 | 三井金属鉱業株式会社 | 電解銅箔及びその製造方法 |
WO2014119355A1 (ja) * | 2013-01-29 | 2014-08-07 | 古河電気工業株式会社 | 電解銅箔及びその製造方法 |
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US20230074384A1 (en) | 2023-03-09 |
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