WO2014208277A1 - 電子部品の製造方法 - Google Patents
電子部品の製造方法 Download PDFInfo
- Publication number
- WO2014208277A1 WO2014208277A1 PCT/JP2014/064547 JP2014064547W WO2014208277A1 WO 2014208277 A1 WO2014208277 A1 WO 2014208277A1 JP 2014064547 W JP2014064547 W JP 2014064547W WO 2014208277 A1 WO2014208277 A1 WO 2014208277A1
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- WO
- WIPO (PCT)
- Prior art keywords
- component
- conductor film
- coating material
- electronic component
- main body
- Prior art date
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 239000004020 conductor Substances 0.000 claims abstract description 114
- 239000000463 material Substances 0.000 claims abstract description 55
- 239000011248 coating agent Substances 0.000 claims abstract description 50
- 238000000576 coating method Methods 0.000 claims abstract description 50
- 238000007599 discharging Methods 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 12
- 239000011888 foil Substances 0.000 claims description 4
- 239000002904 solvent Substances 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 3
- 230000001737 promoting effect Effects 0.000 abstract 1
- 238000009834 vaporization Methods 0.000 abstract 1
- 230000008016 vaporization Effects 0.000 abstract 1
- 238000007598 dipping method Methods 0.000 description 8
- 239000003990 capacitor Substances 0.000 description 6
- 238000003860 storage Methods 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 3
- 229910001316 Ag alloy Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000003985 ceramic capacitor Substances 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001252 Pd alloy Inorganic materials 0.000 description 1
- TUVYSBJZBYRDHP-UHFFFAOYSA-N acetic acid;methoxymethane Chemical compound COC.CC(O)=O TUVYSBJZBYRDHP-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- -1 carbon Chemical compound 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/0029—Processes of manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G13/00—Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups H01G4/00 - H01G11/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/005—Electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/018—Dielectrics
- H01G4/06—Solid dielectrics
- H01G4/08—Inorganic dielectrics
- H01G4/12—Ceramic dielectrics
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/04—Electrodes or formation of dielectric layers thereon
Definitions
- the present invention relates to a method of manufacturing an electronic component, and more particularly to a method of forming a conductor film on the surface of a component body provided in the electronic component.
- Electronic components generally include a component body and a conductor film formed on the component body.
- the conductor film functions as a terminal electrode, functions as an electrode for taking out electrical characteristics of the component main body, or serves as both of them.
- the component main body has various shapes, such as a rectangular parallelepiped shape, a disk shape, and a foil shape.
- the conductor film formed on the component main body is often formed so as to continuously extend over at least two surfaces of the component main body that intersect each other.
- FIG. 4 shows an electronic component 1 including a rectangular parallelepiped component body 2.
- the component body 2 has two main surfaces 3 and 4 facing each other, two side surfaces 5 and 6 facing each other, and two end surfaces 7 and 8 facing each other.
- Two conductor films 9 and 10 are formed on the component main body 2.
- One conductor film 9 is formed so as to continuously extend on one end face 7, each part of main faces 3 and 4 adjacent thereto, and each part of side faces 5 and 6.
- the other conductor film 10 is formed so as to continuously extend on the other end face 8, each part of the main faces 3 and 4 adjacent thereto, and each part of the side faces 5 and 6.
- FIG. 5 shows an electronic component 11 including a rectangular parallelepiped component body 12.
- the component body 12 has two main surfaces 13 and 14 facing each other, two side surfaces 15 and 16 facing each other, and two end surfaces 17 and 18 facing each other.
- Six conductor films 19 to 24 are formed on the component body 12.
- Each of the first to third conductor films 19 to 21 is formed so as to continuously extend on one side surface 15 and a part of each of the two main surfaces 13 and 14 adjacent thereto.
- Each of the fourth to sixth conductor films 22 to 24 is formed so as to continuously extend on the other side surface 16 and a part of each of the two main surfaces 13 and 14 adjacent thereto.
- FIG. 6 shows a foil-shaped component main body 25 constituting a capacitor element in an electrolytic capacitor, for example.
- the component main body 25 has two main surfaces 26 and 27 facing each other and an end surface 28 connecting the main surfaces 26 and 27.
- the conductor film 29 is formed so as to continuously extend on the two main surfaces 26 and 27 and the end surface 28 adjacent thereto.
- the conductor films 9 and 10, the conductor films 19 to 24, and the conductor film 29 described above are generally in the form of the conductor film 35 shown in FIG. 7 or FIG.
- the conductor film 35 must be formed so as to continuously extend across the first, second and third surfaces 32, 33 and 34 of the component body 31.
- the conductor film 35 described above is formed, for example, by applying a conductive paste on the component body 31 by, for example, a dipping method and baking it as described in Japanese Patent Laid-Open No. 4-263414 (Patent Document 1). Often done.
- the component main body 31 is dipped toward the conductive paste, and then the conductive paste is applied to a predetermined region on the component main body 31 by pulling up from the conductive paste.
- the formed conductor film 35 has a thickness of the first to third surfaces 32 to 34 as shown in FIG. On each of these, there is a tendency to have a bulge in the center. For this reason, the proportion of the thickness dimension of the conductor film 35 in the electronic component becomes high, and the downsizing or low profile of the electronic component is hindered.
- the conductive film 35 may be deformed by wetting and spreading of the conductive paste, which may cause problems during mounting of electronic components and may deteriorate electrical characteristics after mounting.
- the ridge line portion 36 where the first and second surfaces 32 intersect with each other and the ridge line portion 36 where the second and third surfaces 33 and 34 intersect with each other are illustrated as having sharp edges. However, in reality, they are often chamfered. Thus, even when the ridge line portion 36 is rounded, the above-described problem of cutting the conductive film 35 on the ridge line portion 36 cannot be avoided.
- the thickness of the conductor film 35 is considered to be about 20 ⁇ m at the limit of thickness. Therefore, it is difficult to further reduce the size or height of the electronic component, and it is also difficult to increase the performance of the electronic component, for example, the capacity of the multilayer ceramic capacitor.
- an object of the present invention is to provide a method for manufacturing an electronic component capable of further reducing the thickness of a conductor film.
- the present invention relates to a component body having at least first and second surfaces intersecting each other, and a conductor film formed on the component body so as to continuously extend over at least the first surface and the second surface.
- a process for preparing a component body and a fluidity including a conductive material as a material for a conductor film are provided.
- a step of preparing a coating material having, a step of arranging a component main body so as to face a discharge nozzle for discharging the coating material, and applying a voltage between the discharge nozzle and the component main body to charge the coating material.
- the coating material is ejected from the ejection nozzle, and the charged coating material is applied to the component body, whereby the conductive film containing the conductive material is applied to at least the first surface and the second surface of the component body.
- Straddle Is characterized by comprising a step of forming as continuously extending simultaneously, the.
- the charged coating material flies in the air along the lines of electric force.
- the coating material repeats splitting due to Coulomb repulsion (Rayleigh splitting). Since the surface area increases every time splitting is repeated, evaporation of a liquid component such as a solvent or a solvent in the coating material is promoted. As a result, the coating material is dried to such an extent that fluidity is almost lost when adhering to the surface of the component body. Therefore, since the surface tension does not substantially act on the coating material, the coating material does not collect at a specific portion, and the coating material is applied thinly and uniformly on at least the first and second surfaces of the component body. be able to.
- the manufacturing method according to the present invention can be applied to various types of electronic components.
- the component main body has a rectangular parallelepiped shape having two main surfaces facing each other, two side surfaces facing each other, and two end surfaces facing each other, and forming a conductor film
- the conductive film is an electronic component formed so as to extend continuously on at least one end face, each part of the main surface adjacent thereto, and each part of the side face.
- the component main body has a rectangular parallelepiped shape having two main surfaces facing each other, two side surfaces facing each other, and two end surfaces facing each other, and forming a conductor film
- the conductor film is formed so as to continuously extend on at least one side surface and each part of two main surfaces adjacent thereto.
- the component main body has a foil shape having two main surfaces facing each other and an end surface connecting the main surfaces, and in the step of forming the conductor film, the conductor film is at least There is an electronic component formed so as to continuously extend on one main surface and an end surface adjacent thereto.
- a mask for covering a region other than the region where the conductor film is to be formed in the component body is prepared, and the conductor film is formed in a state where the component body is covered with this mask. It is preferable. As a result, the conductor film can be formed with high pattern accuracy without being affected by the physical properties of the coating material, which can contribute to downsizing of the electronic component.
- the conductor film in the step of forming the conductor film, as described above, since the coating material flies along the lines of electric force, the conductor film is uniformly formed on both the first surface and the second surface. This can be achieved simultaneously by coating from one direction of the coating material.
- the conductor film including the ridge line portion is made to have an appropriate film thickness. Can be formed.
- the conductive film containing the conductive material can be formed thin. Therefore, it is possible to reduce the size or height of the electronic component by reducing the thickness of the conductor film.
- the effective volume that can be occupied by parts other than the conductor film that is, the effective volume that can be occupied by the component main body that expresses the function can be increased, and the performance of the electronic component is improved be able to.
- the volume of the portion that develops the electrostatic capacity can be increased, and as a result, the capacity can be increased.
- the electronic component is, for example, a laminated type aluminum electrolytic capacitor
- the thickness of the capacitor element having a surface formed of an anodized aluminum foil and a conductor film formed on the surface can be reduced. As a result, the number of capacitor elements stacked can be increased, and therefore the capacity can be increased.
- the conductive film containing a conductive material can be formed thin, the material used for forming the conductive film can be reduced, and thus the cost of the electronic component as a product can be reduced.
- the dipping method can avoid problems such as wetting and insufficient coverage of the ridge line portion caused by the physical properties of the coating material. it can.
- FIG. 6 is a view corresponding to FIG. 2, and is a perspective view schematically showing a state in which a step of forming a conductor film is performed in the method for manufacturing an electronic component according to the second embodiment of the present invention.
- FIG. 6 is a view corresponding to FIG. 2, and is a perspective view schematically showing a state in which a step of forming a conductor film is performed in the method for manufacturing an electronic component according to the second embodiment of the present invention.
- It is a perspective view which shows the 1st example of a form of the conventional electronic component.
- It is a perspective view which shows the 2nd example of a conventional electronic component.
- It is a perspective view which shows the 3rd example of a conventional electronic component.
- a method of manufacturing an electronic component 1 including the rectangular parallelepiped component main body 2 shown in FIG. 4 will be described.
- a component main body 2 is prepared.
- a coating material having fluidity including a conductive material which is a material for the conductor films 9 and 10, is prepared.
- a conductive material for example, in addition to metal powders such as silver, silver / palladium alloy, and copper, conductive materials such as carbon, conductive ceramics, and conductive polymers can be used.
- the conductor film forming apparatus 41 shown in FIG. 1 is used.
- the conductor film forming apparatus 41 includes a storage tank 43 that accommodates the coating material 42 described above.
- the storage tank 43 is connected to the discharge nozzle 45 via the supply pipe 44.
- a stage 47 is provided opposite to the discharge nozzle 45, and the component main body 2 as an object on which the conductor films 9 and 10 are to be formed is placed on the stage 47.
- the stage 47 is preferably made of a conductive material.
- the pulse voltage, DC voltage, or AC voltage from the power supply 48 is applied to the coating material 42 that passes through the discharge nozzle 45.
- the process of forming the conductor films 9 and 10 is performed in a state where a voltage is applied. Note that the step of forming the conductor film 9 and the step of forming the conductor film 10 are sequentially performed individually.
- the process of forming the conductor film 9 will be described.
- the component main body 2 is in a state where a region other than a region where the conductor film 9 is to be formed is covered with a mask 51.
- the end surface 7 on which the conductor film 9 is formed is in a state facing the discharge nozzle 45.
- the internal pressure of the storage tank 43 is increased as indicated by an arrow 52.
- the coating material 42 in the storage tank 43 passes through the supply pipe 44 and is supplied to the discharge nozzle 45 to which a voltage is applied, and the coating material 42 is charged. Electric lines of force 53 are generated from the charged coating material 42.
- the coating material 42 is discharged from the discharge nozzle 45 toward the component main body 2.
- the coating material 42 repeats splitting due to the Coulomb repulsive force (Rayleigh splitting) while flying in the air along the electric lines of force 53 and becomes a mist. Therefore, the surface area of the coating material 42 is increased with each division, so that the coating material 42 is dried and the evaporation of liquid components such as a solvent and a solvent contained in the coating material 42 is promoted.
- FIG. 2 schematically shows electric lines of force 53 generated by the charged coating material 42.
- the charged coating material 42 adheres to the component main body 2 along the electric force lines 53.
- the electric lines of force 53 tend to concentrate particularly on the ridge line portion of the component main body 2, so that the coating material 42 can be uniformly attached including the ridge line portion.
- the coating material 42 reaches the component main body 2 in the portion covered with the mask 51. do not do.
- the conductor film 9 is formed with high pattern accuracy.
- the orientation of the component body 2 on the stage 47 is reversed, and the mask 51 is mounted so as to cover a region other than the region where the conductor film 10 is to be formed. Then, the same process as the process of forming the conductor film 9 described above is repeated.
- the heat treatment process described above may be performed on both the conductor films 9 and 10 at once.
- fluidity is imparted to a paste-like material in which Ag powder is dispersed in an epoxy resin so that the viscosity at 1 rpm of an E-type viscometer is about 500 mPa ⁇ s using dipropylene methyl ether acetate. What was done was used.
- heat treatment is performed at a temperature of 150 ° C. for 1 hour in a hot air circulating oven. I did it.
- the conductor films 9 and 10 are formed with thicknesses of 4 ⁇ m, 8 ⁇ m, 10 ⁇ m, 14 ⁇ m, 28 ⁇ m, 40 ⁇ m, and 100 ⁇ m, the conductor films 9 and 10 can be formed with any thickness. In addition, the conductor films 9 and 10 were not cut at the ridge lines.
- a conductor film 29 is formed on the foil-shaped component main body 25 shown in FIG. Also in the second embodiment, the conductor film forming apparatus 41 shown in FIG. 1 is used. In the second embodiment, the component main body 25 is placed on the stage 47 shown in FIG. 1 with the mask 55 attached as shown in FIG.
- the charged coating material 42 adheres to the component main body 25 along the electric lines of force 53.
- the electric lines of force 53 tend to concentrate particularly on the ridge line portion of the component main body 25, so that the coating material 42 can be uniformly attached including the ridge line portion.
- the coating material 42 does not reach the component main body 25 in the portion covered with the mask 55.
- a part of the conductor film 29 having a thin and uniform thickness is formed with high pattern accuracy so as to continuously extend on one main surface 26 of the component main body 25 and the end surface 28 adjacent thereto.
- the present invention has been described above with reference to the illustrated first and second embodiments.
- the conductor films 19 to 24 are formed on the component body 12.
- the conductor film forming apparatus 41 shown in FIG. 1 can be applied.
- the conductor films 19 to 24, and the conductor film 29. 1 can also be used in the step of forming a conductor film on the component body even for an electronic component having the above-described conductor film.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
Description
2,12,25 部品本体
3,4,13,14,26,27 主面
5,6,15,16 側面
7,8,17,18,28 端面
9,10,19~24,29 導体膜
41 導体膜形成装置
42 塗布材料
45 吐出ノズル
51,55 マスク
53 電気力線
Claims (5)
- 互いに交差する第1および第2の面を少なくとも有する部品本体と、少なくとも前記第1の面と前記第2の面とにまたがって連続的に延びるように前記部品本体上に形成される導体膜とを備える、電子部品を製造する方法であって、
前記部品本体を用意する工程と、
前記導体膜の材料としての導電性材料を含む流動性を有する塗布材料を用意する工程と、
前記塗布材料を吐出するための吐出ノズルに対向するように前記部品本体を配置する工程と、
前記吐出ノズルと前記部品本体との間に電圧を印加し、前記塗布材料を帯電させた状態で、前記塗布材料を吐出ノズルから吐出し、帯電させた前記塗布材料を前記部品本体に塗布し、それによって、前記導電性材料を含む前記導体膜を前記部品本体の少なくとも前記第1の面と前記第2の面とにまたがって連続的に延びるように同時に形成する工程と、
を備える、電子部品の製造方法。 - 前記部品本体は、互いに対向する2つの主面、互いに対向する2つの側面、ならびに互いに対向する2つの端面を有する直方体形状をなしており、前記導体膜を形成する工程において、前記導体膜は、少なくとも一方の前記端面とそれに隣接する前記主面の各一部および前記側面の各一部とにおいて連続的に延びるように形成される、請求項1に記載の電子部品の製造方法。
- 前記部品本体は、互いに対向する2つの主面、互いに対向する2つの側面、ならびに互いに対向する2つの端面を有する直方体形状をなしており、前記導体膜を形成する工程において、前記導体膜は、少なくとも一方の前記側面とそれに隣接する前記2つの主面の各一部とにおいて連続的に延びるように形成される、請求項1に記載の電子部品の製造方法。
- 前記部品本体は、互いに対向する2つの主面および前記主面間を連結する端面を有する箔形状をなしており、前記導体膜を形成する工程において、前記導体膜は、少なくとも一方の前記主面とそれに隣接する前記端面とにおいて連続的に延びるように形成される、請求項1に記載の電子部品の製造方法。
- 前記部品本体における前記導体膜が形成れるべき領域以外の領域を覆うマスクを用意する工程をさらに備え、前記導体膜を形成する工程は、前記部品本体を前記マスクで覆った状態で実施される、請求項1ないし4のいずれかに記載の電子部品の製造方法。
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CN201480036442.XA CN105339096B (zh) | 2013-06-28 | 2014-05-31 | 电子元件的制造方法 |
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US14/972,792 US20160111219A1 (en) | 2013-06-28 | 2015-12-17 | Method for manufacturing electronic component |
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- 2014-05-31 JP JP2015523940A patent/JP6123894B2/ja active Active
- 2014-05-31 CN CN201480036442.XA patent/CN105339096B/zh active Active
- 2014-05-31 WO PCT/JP2014/064547 patent/WO2014208277A1/ja active Application Filing
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2015
- 2015-12-17 US US14/972,792 patent/US20160111219A1/en not_active Abandoned
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JPH0482308A (ja) * | 1990-07-25 | 1992-03-16 | Seiko Instr Inc | 電子部品用基板の電極形成方法 |
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JP2003327920A (ja) * | 2002-03-07 | 2003-11-19 | Ishihara Sangyo Kaisha Ltd | 導電性塗料及びそれを用いた導電性塗膜の形成方法並びに導電性塗膜、導電性塗膜を有する部材 |
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WO2014083782A1 (ja) * | 2012-11-30 | 2014-06-05 | アピックヤマダ株式会社 | レジスト膜形成装置とその方法、導電膜形成および回路形成装置とその方法、電磁波シールド形成装置とその方法、短波長高透過率絶縁膜の成膜装置とその方法、蛍光体の成膜装置とその方法、微量材料合成装置とその方法、樹脂モールド装置、樹脂モールド方法、薄膜形成装置、有機el素子、バンプ形成装置とその方法、配線形成装置とその方法、および、配線構造体 |
Also Published As
Publication number | Publication date |
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CN105339096B (zh) | 2017-08-29 |
US20160111219A1 (en) | 2016-04-21 |
JPWO2014208277A1 (ja) | 2017-02-23 |
CN105339096A (zh) | 2016-02-17 |
JP6123894B2 (ja) | 2017-05-10 |
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