WO2019009050A1 - 蒸着マスク、蒸着マスク装置、蒸着マスクの製造方法及び蒸着マスク装置の製造方法 - Google Patents
蒸着マスク、蒸着マスク装置、蒸着マスクの製造方法及び蒸着マスク装置の製造方法 Download PDFInfo
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- WO2019009050A1 WO2019009050A1 PCT/JP2018/023065 JP2018023065W WO2019009050A1 WO 2019009050 A1 WO2019009050 A1 WO 2019009050A1 JP 2018023065 W JP2018023065 W JP 2018023065W WO 2019009050 A1 WO2019009050 A1 WO 2019009050A1
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- Prior art keywords
- mask
- vapor deposition
- deposition mask
- metal layer
- substrate
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- SQZYOZWYVFYNFV-UHFFFAOYSA-L iron(2+);disulfamate Chemical compound [Fe+2].NS([O-])(=O)=O.NS([O-])(=O)=O SQZYOZWYVFYNFV-UHFFFAOYSA-L 0.000 description 1
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- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 1
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- IPLJNQFXJUCRNH-UHFFFAOYSA-L nickel(2+);dibromide Chemical compound [Ni+2].[Br-].[Br-] IPLJNQFXJUCRNH-UHFFFAOYSA-L 0.000 description 1
- KERTUBUCQCSNJU-UHFFFAOYSA-L nickel(2+);disulfamate Chemical compound [Ni+2].NS([O-])(=O)=O.NS([O-])(=O)=O KERTUBUCQCSNJU-UHFFFAOYSA-L 0.000 description 1
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Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
- H01L21/033—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers
- H01L21/0334—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers characterised by their size, orientation, disposition, behaviour, shape, in horizontal or vertical plane
- H01L21/0337—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers characterised by their size, orientation, disposition, behaviour, shape, in horizontal or vertical plane characterised by the process involved to create the mask, e.g. lift-off masks, sidewalls, or to modify the mask, e.g. pre-treatment, post-treatment
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/04—Coating on selected surface areas, e.g. using masks
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/12—Organic material
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/24—Vacuum evaporation
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/02—Local etching
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
- H01L21/033—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers
- H01L21/0332—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers characterised by their composition, e.g. multilayer masks, materials
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/10—Apparatus or processes specially adapted to the manufacture of electroluminescent light sources
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/10—Deposition of organic active material
- H10K71/16—Deposition of organic active material using physical vapour deposition [PVD], e.g. vacuum deposition or sputtering
- H10K71/164—Deposition of organic active material using physical vapour deposition [PVD], e.g. vacuum deposition or sputtering using vacuum deposition
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/10—Deposition of organic active material
- H10K71/16—Deposition of organic active material using physical vapour deposition [PVD], e.g. vacuum deposition or sputtering
- H10K71/166—Deposition of organic active material using physical vapour deposition [PVD], e.g. vacuum deposition or sputtering using selective deposition, e.g. using a mask
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/04—Coating on selected surface areas, e.g. using masks
- C23C14/042—Coating on selected surface areas, e.g. using masks using masks
Definitions
- the present disclosure relates to a deposition mask used for deposition of a deposition material on a deposition target substrate, a deposition mask apparatus, a method of manufacturing a deposition mask, and a method of manufacturing a deposition mask apparatus.
- a pixel density of 400 ppi or more is required for a display device used in a portable device such as a smartphone or a tablet PC.
- the pixel density of the display device is required to be, for example, 800 ppi or more.
- organic EL display devices have attracted attention because of their high responsiveness, low power consumption, and high contrast.
- a method of forming the pixels of the organic EL display device there is known a method of forming the pixels in a desired pattern using a deposition mask including through holes arranged in a desired pattern. Specifically, first, a substrate (organic EL substrate) for an organic EL display device is loaded into a deposition apparatus, and then, a deposition mask is brought into close contact with the organic EL substrate in the deposition apparatus to make the organic material organic EL A deposition process of depositing on a substrate is performed.
- a deposition mask is a deposition mask as disclosed in JP2016-148112A.
- the deposition mask disclosed in JP2016-148112A is manufactured using a plating process. First, a conductive pattern is formed on an insulating substrate, and then a metal layer is formed on the conductive pattern using electrolytic plating. Thereafter, the substrate and the conductive pattern are removed to obtain a deposition mask having a metal layer.
- a deposition mask is manufactured using a plating process, there is an advantage that a thin deposition mask can be obtained.
- the vapor deposition material directed toward the vapor deposition substrate such as the organic EL substrate is exposed in the through holes of the vapor deposition mask from the direction greatly inclined with respect to the normal direction to the plate surface of the vapor deposition mask. It can be properly deposited on the deposited substrate.
- a deposition mask is manufactured using a plating process, and then the deposition mask is attached to a frame to manufacture a deposition mask apparatus.
- the frame of the vapor deposition mask device holds the vapor deposition mask in a stretched state. That is, in the state of being fixed to the frame, tension is applied to the deposition mask. Thereby, the occurrence of bending in the deposition mask is suppressed.
- the tension applied to the thinned vapor deposition mask causes the vapor deposition mask to be wrinkled or deformed.
- a conductive pattern made of a conductive material such as copper is provided on a substrate, a metal layer serving as a vapor deposition mask is provided on the conductive pattern, and a laminate having a substrate, a conductive pattern and a metal layer is provided.
- a metal layer of the laminate is joined to the frame by welding or the like.
- the conductive pattern is then etched away to separate the substrate from the metal layer.
- the metal layer of the laminate forming the vapor deposition mask is bonded to the frame while being held on the substrate, the flatness of the vapor deposition mask can be favorably secured. Thereby, it is considered that the generation of wrinkles and deformation in the deposition mask can be suppressed.
- the deposition mask is a metal layer deposited using a plating method
- residual stress internal stress
- tensile force may occur in the metal layer, which may cause tensile force in the plane of the metal layer.
- the magnitude of this tensile force varies with the thickness, composition, etc. of the metal layer.
- in-plane variation may also occur in the tensile force in the deposition mask. Therefore, in the deposition mask after removing the base material, the positions of the through holes may be deviated from the predetermined positions due to the in-plane variation of the tensile force.
- the present disclosure has been made in consideration of such points, and it is an object of the present invention to provide a deposition mask, a deposition mask device, and a deposition mask and a deposition mask device manufacturing method capable of suppressing positional deviation of through holes. I assume.
- the vapor deposition mask of the present disclosure is A first mask formed with a plurality of openings aligned at least along a first direction; And a second mask formed with a plurality of through holes, the second mask being superimposed on the first mask and having a surface direction size smaller than the surface direction size of the opening. And a plurality of bonding portions for bonding the second mask and the first mask to each other, The plurality of junctions are arranged along the outer edge of the second mask, A notch is formed in the outer edge of the second mask at a position corresponding to a position between two adjacent joints.
- the vapor deposition mask device of the present disclosure includes the vapor deposition mask described above, and a frame attached to the vapor deposition mask.
- the manufacturing method of the vapor deposition mask of the present disclosure is A first mask formed with a plurality of openings aligned at least along a first direction; And a second mask formed with a plurality of through holes having a size smaller than the opening and stacked on the first mask.
- the metal layer of a laminate including a substrate, a conductive pattern provided on the substrate, and a metal layer provided on the opposite side of the conductive pattern to the substrate is a plurality of bonding portions.
- a notch may be formed in the outer edge of the metal layer at a position corresponding to a position between two adjacent ones of the plurality of joints in the arrangement direction of the plurality of joints.
- the manufacturing method of the vapor deposition mask device of the present disclosure is A method of manufacturing a deposition mask apparatus, comprising: a deposition mask; and a frame attached to the deposition mask, Preparing the vapor deposition mask described above or the vapor deposition mask manufactured by the method of manufacturing the vapor deposition mask described above; Attaching the deposition mask to a frame.
- the method may further include a stretching step of stretching the vapor deposition mask in the surface direction before the mounting step.
- FIG. 1 is a diagram for explaining an embodiment of the present disclosure, and is a diagram for explaining a vapor deposition apparatus having a vapor deposition mask device and a vapor deposition method using the vapor deposition apparatus.
- FIG. 2 is a cross-sectional view showing an example of the organic EL display manufactured by the vapor deposition apparatus shown in FIG.
- FIG. 3 is a plan view schematically showing an example of a deposition mask apparatus having a deposition mask.
- FIG. 4 is a view showing the vapor deposition mask device in a cross section corresponding to the line IV-IV in FIG.
- FIG. 5 is a plan view showing an example of the first mask of the vapor deposition mask.
- FIG. 6 is a plan view showing an example of a second mask of the vapor deposition mask.
- FIG. 7 is a partial plan view of the vapor deposition mask device, showing the portion to which VII in FIG. 3 is attached as viewed from the second surface side of the vapor deposition mask.
- FIG. 8 is a diagram showing a process of an example of a method of manufacturing a deposition mask.
- FIG. 9 is a diagram showing a process of an example of a method of manufacturing a deposition mask.
- FIG. 10 is a diagram showing a process of an example of a method of manufacturing a deposition mask.
- FIG. 11 is a diagram showing a process of an example of a method of manufacturing a deposition mask.
- FIG. 12 is a diagram showing a process of an example of a method of manufacturing a deposition mask.
- FIG. 13 is a diagram showing a process of an example of a method of manufacturing a vapor deposition mask device.
- FIG. 14 is a diagram showing a process of an example of a method of manufacturing a deposition mask device.
- FIG. 15 is a diagram showing a process of a modification of the method of manufacturing a deposition mask device.
- FIG. 16 is a diagram showing a process of a modification of the method of manufacturing a deposition mask device.
- FIG. 17 is a diagram showing a process of a modification of the method of manufacturing a deposition mask device.
- FIG. 18 is a diagram showing a process of another modification of the method of manufacturing a deposition mask device.
- FIG. 19 is a diagram showing a process of another modification of the method of manufacturing a deposition mask device.
- FIG. 19 is a diagram showing a process of another modification of the method of manufacturing a deposition mask device.
- FIG. 20 is a diagram showing a process of still another modification of the method of manufacturing a vapor deposition mask device.
- FIG. 21 is a diagram showing a process of still another modification of the method of manufacturing a vapor deposition mask device.
- FIG. 22 is a diagram showing a process of still another modification of the method of manufacturing a vapor deposition mask device.
- FIG. 23 is a diagram showing a process of still another modification of the method of manufacturing a vapor deposition mask device.
- FIG. 24 is a diagram showing a process of still another modification of the method of manufacturing a vapor deposition mask device.
- FIG. 25 is a partial plan view showing a modification of the second mask.
- FIG. 26 is a partial plan view showing another modification of the second mask.
- FIG. 27 is a partial plan view showing still another modified example of the second mask.
- FIG. 28 is a partial plan view showing still another modified example of the second mask.
- FIG. 29 is a partial plan view showing still another modified example of the second mask.
- FIG. 30 is a partial plan view showing still another modified example of the second mask.
- FIG. 31 is a plan view showing still another modified example of the second mask.
- 1 to 31 are diagrams for describing an embodiment according to the present disclosure.
- a deposition mask device used to pattern an organic material on a substrate in a desired pattern when manufacturing an organic EL display device and a method of manufacturing the deposition mask device will be described as an example.
- the present disclosure can be applied to a deposition mask device used for various applications and a method of manufacturing the deposition mask device without being limited to such applications.
- plate is not distinguished from one another based only on the difference in designation.
- sheet is a concept including a member that may be called a sheet or a film.
- plate surface refers to a plate-shaped member (sheet-shaped member (sheet-shaped member) when the target plate-shaped (sheet-shaped, film-shaped) member is viewed globally and generally. It refers to the surface that coincides with the planar direction of the member (film-like member).
- the surface direction used for a plate-like (sheet-like, film-like) member means a direction parallel to the plate face (sheet face, film face) of the member.
- the normal direction used with respect to a plate-like (sheet-like, film-like) member refers to the normal direction to the plate face (sheet face, film face) of the member.
- the vapor deposition apparatus 90 includes a vapor deposition source (for example, a crucible 94), a heater 96, and a vapor deposition mask apparatus 10 therein. Further, the vapor deposition apparatus 90 further includes an exhaust unit for making the inside of the vapor deposition apparatus 90 a vacuum atmosphere.
- a vapor deposition source for example, a crucible 94
- a heater 96 for example, a heater 96
- the vapor deposition apparatus 90 further includes an exhaust unit for making the inside of the vapor deposition apparatus 90 a vacuum atmosphere.
- Crucible 94 contains deposition material 98, such as an organic light emitting material.
- the heater 96 heats the crucible 94 to evaporate the deposition material 98 under a vacuum atmosphere.
- the deposition mask device 10 is disposed to face the crucible 94.
- the vapor deposition mask device 10 includes a vapor deposition mask 20 and a frame 12 for supporting the vapor deposition mask 20.
- the frame 12 supports the vapor deposition mask 20 in a state of being pulled in the surface direction so that the vapor deposition mask 20 is not bent.
- the deposition mask apparatus 10 is disposed in the deposition apparatus 90 so that the deposition mask 20 faces a deposition target substrate (for example, an organic EL substrate) 92 which is an object to which the deposition material 98 is to be attached. Ru.
- the vapor deposition mask apparatus 10 may be provided with the magnet 93 arrange
- the magnet 93 By providing the magnet 93, the deposition mask 20 can be attracted to the magnet 93 side by magnetic force, and the deposition mask 20 can be brought into close contact with the deposition target substrate 92.
- the deposition mask 20 includes a first mask 30 and a second mask 40 superimposed on the first mask 30.
- the first mask 30 has a plate member 32 and a plurality of openings 35 formed in the plate member 32.
- the second mask 40 has a metal layer 42 and a plurality of through holes 45 formed in the metal layer 42.
- the thickness of the first mask 30 is 50 ⁇ m or more and 3000 ⁇ m or less
- the thickness of the second mask 40 is 2.5 ⁇ m or more and 30 ⁇ m or less.
- the through hole 45 has a surface dimension smaller than the surface dimension of the opening 35.
- the through hole 45 has a surface direction dimension smaller than the surface direction dimension of the opening 35
- the dimension of the through hole 45 is along the plate surface of the first mask 30 (the plate surface of the second mask 40). In all directions, it means smaller than the size of the opening 35.
- the outline defining the opening 35 surrounds the outline defining the through hole 45 located in the opening 35 in a plan view.
- the maximum dimension of the through hole 45 in the surface direction is, for example, 5 ⁇ m or more and 100 ⁇ m or less.
- the through hole 45 of the second mask 40 is also formed at a position not overlapping the opening 35 of the first mask 30.
- the through hole 45 may have a slit shape having a longitudinal direction and a width direction orthogonal to the longitudinal direction in a plan view.
- the maximum width in the width direction of the through hole 45 can be, for example, 5 ⁇ m or more and 100 ⁇ m or less.
- the vapor deposition mask 20 has a first surface 20a and a second surface 20b that is a surface opposite to the first surface 20a.
- the deposition mask 20 is disposed between the deposition substrate 92 and the crucible 94.
- the deposition mask 20 is supported in the deposition apparatus 90 such that the second surface 20b faces the lower surface of the deposition-target substrate 92, in other words, the first surface 20a faces the crucible 94. It is used to deposit the deposition material 98 onto the deposition substrate 92.
- the vapor deposition material 98 that has evaporated from the crucible 94 and reached the vapor deposition mask 20 from the first surface 20 a is the openings 35 of the first mask 30 and the through holes 45 of the second mask 40. It passes through and adheres to the vapor deposition substrate 92.
- the deposition material 98 can be deposited on the surface of the deposition target substrate 92 in a desired pattern corresponding to the openings 35 of the first mask 30 and the positions of the through holes 45 of the second mask 40.
- FIG. 2 is a cross-sectional view showing an organic EL display device 100 manufactured using the vapor deposition apparatus 90 of FIG.
- the organic EL display device 100 includes a deposition target substrate (organic EL substrate) 92 and a pixel including a deposition material 98 provided in a pattern.
- the vapor deposition apparatus 90 on which the vapor deposition mask device 10 corresponding to each color is mounted is prepared, and the deposition target substrate 92 is sequentially put into the vapor deposition apparatuses 90.
- the organic light emitting material for red, the organic light emitting material for green, and the organic light emitting material for blue can be sequentially deposited on the deposition target substrate 92.
- the vapor deposition process may be carried out inside the vapor deposition apparatus 90 which is in a high temperature atmosphere.
- the deposition mask 20, the frame 12, and the deposition substrate 92 held inside the deposition apparatus 90 are also heated during the deposition process.
- the first mask 30 and the second mask 40 of the deposition mask 20, the frame 12, and the deposition target substrate 92 exhibit behavior of dimensional change based on their respective thermal expansion coefficients.
- the thermal expansion coefficients of the first mask 30, the second mask 40, the frame 12 and the deposition substrate 92 are largely different, positional deviation occurs due to the difference in their dimensional changes, resulting in deposition
- the dimensional accuracy and positional accuracy of the vapor deposition material deposited on the substrate 92 will be reduced.
- frame 12 is a value equivalent to the thermal expansion coefficient of the vapor deposition board
- an iron alloy containing nickel can be used as a main material of the first mask 30, the second mask 40, and the frame 12.
- an iron alloy containing 30% by mass or more and 54% by mass or less of nickel can be used as a material of members constituting the first mask 30, the second mask 40, and the frame 12.
- iron alloy containing nickel examples include an invar material containing 34 mass% or more and 38 mass% or less nickel, a super invar material containing cobalt in addition to 30 mass% or more and 34 mass% or less nickel, 38 mass%
- examples thereof include low thermal expansion Fe-Ni based plating alloys containing not less than 54% by mass of nickel.
- the thermal expansion of the first mask 30, the second mask 40 and the frame 12 may not be equal to the thermal expansion coefficient of the deposition substrate 92.
- a material other than the above-described iron alloy may be used as the material constituting the first mask 30 and the second mask 40.
- iron alloys other than iron alloys containing nickel described above, such as iron alloys containing chromium may be used.
- an iron alloy containing chromium for example, an iron alloy called a so-called stainless steel can be used.
- alloys other than iron alloys such as nickel and nickel-cobalt alloys may be used.
- FIG. 3 is a plan view schematically showing an example of the vapor deposition mask device 10 having the vapor deposition mask 20 and is a view of the vapor deposition mask device 10 as viewed from the first surface 20 a side of the vapor deposition mask 20.
- FIG. 4 is a cross-sectional view of the vapor deposition mask device 10, showing the vapor deposition mask device 10 in a cross section corresponding to the line IV-IV in FIG.
- the vapor deposition mask 20 has a substantially rectangular shape in plan view, and more specifically, a substantially rectangular outline in plan view.
- the frame 12 is formed in a substantially rectangular frame shape, and the deposition mask 20 is attached to the frame 12 such that each side of the deposition mask 20 corresponds to each side of the frame 12.
- the vapor deposition mask 20 has a first mask 30 and a second mask 40 stacked on one another.
- the second mask 40 is disposed on the second surface 20 b side with respect to the first mask 30.
- the surface of the first mask 30 opposite to the second mask 40 and the surface of the second mask 40 exposed from the opening 35 of the first mask 30 form the first surface 20 a of the vapor deposition mask 20
- the surface of the second mask 40 opposite to the first mask 30 forms the second surface 20 b of the deposition mask 20.
- the first mask 30 and the second mask 40 each have a substantially rectangular outline in plan view.
- the first mask 30 has a planar dimension larger than the planar dimension of the second mask 40, and the contour defining the first mask 30 in a plan view has the second mask 40. It encloses the outline to define.
- the first mask 30 and the second mask 40 of the deposition mask 20 are fixed to each other. Therefore, the deposition mask 20 has a plurality of first bonding portions 16 that bond the first mask 30 and the second mask 40 to each other. In addition, the first mask 30 and the frame 12 are fixed to each other. Therefore, the deposition mask device 10 has a plurality of second bonding portions 18 that bond the first mask 30 and the frame 12 to each other.
- the bonding portions 16 and 18 are arranged along the outer edge 22 of the deposition mask 20, respectively. In the illustrated example, the outer edge 22 of the deposition mask 20 and the outer edge 43 of the second mask 40 extend parallel to each other, that is, along the same direction. Thus, the junctions 16 and 18 are arranged along the outer edge 43 of the second mask 40, respectively.
- the vapor deposition mask 20 has a substantially rectangular outline in plan view. Accordingly, the bonding portions 16 and 18 are also arranged in a substantially rectangular pattern along the outer edge 22 of the vapor deposition mask 20.
- the junctions 16 and 18 are arranged in a straight line with a constant distance from the outer edge 22 of the deposition mask 20, respectively. That is, the bonding portions 16 and 18 are arranged along a direction parallel to the direction in which the outer edge 22 of the deposition mask 20 extends. Further, in the illustrated example, the joints 16 and 18 are arranged at equal intervals along the direction in which the outer edge 22 extends.
- the fact that the joints 16 and 18 are arranged along the outer edges 22 and 43 means that they are arranged along at least a part of the entire circumference of the outer edges 22 and 43. Do. In the illustrated example, the joints 16 and 18 are arranged along the entire circumference of the outer edges 22 and 43, but the invention is not limited to this.
- the joints 16 and 18 may be, for example, all of the circumference of the outer edges 22 and 43. It may be arranged along only two opposing sides.
- the first mask 30 and the second mask 40 are fixed to each other by spot welding.
- the first mask 30 and the frame 12 are fixed to each other by spot welding. Therefore, each of the first bonding portion 16 and the second bonding portion 18 is configured as a welding portion by spot welding.
- each 1st junction part 16 and each 2nd junction part 18 may be constituted as an adhesion part, for example.
- FIG. 5 is a plan view showing the first mask 30 of the vapor deposition mask device 10 of FIG.
- the first mask 30 has a plurality of openings 35, and the plurality of openings 35 are aligned at a predetermined pitch along the first direction D1 and the second direction D2.
- Both the first direction D1 and the second direction D2 are directions parallel to the planar direction of the plate member 32 of the first mask 30.
- the second direction D2 is orthogonal to the first direction D1.
- the first mask 30 may be configured to have a plurality of layers. That is, the first mask 30 may be manufactured by laminating a plurality of layers along the plate surface direction.
- One opening 35 of the first mask 30 corresponds to the display area of one organic EL display device 100. Therefore, according to the illustrated vapor deposition mask device 10, multifaceted vapor deposition of the organic EL display device 100 can be performed corresponding to each opening 35 of the first mask 30.
- the opening 35 has, for example, a substantially rectangular shape in a plan view, and more precisely, a substantially rectangular outline in a plan view.
- the openings 35 can have contours of various shapes according to the shape of the display area of the deposition target substrate (organic EL substrate) 92.
- each opening 35 may have a circular contour.
- FIG. 3 it is not restricted to this, even if each opening part 35 has mutually different opening shape Good.
- the first mask 30 may have a plurality of openings 35 having shapes in plan view different from one another.
- alignment marks 37 are provided in the vicinity of the corners of the openings 35 of the first mask 30. In particular, for one opening 35, four alignment marks 37 are provided corresponding to the four corners. In the illustrated example, some (for example, two) alignment marks 37 are shared between the adjacent openings 35.
- the alignment mark 37 is used when the relative position between the through holes 45 of the second mask 40 exposed in the openings 35 is adjusted to a predetermined position in the stretching step in the method of manufacturing the vapor deposition mask device 10 described later.
- the specific shape of the alignment mark 37 may be any shape that can be recognized by an imaging device such as a camera, and is not particularly limited.
- the alignment of the through holes 45 using the alignment mark 37 can be performed, for example, in the same manner as the method described in JP4606114B2 or JP4562488B2.
- FIG. 6 is a plan view showing the second mask 40 of the vapor deposition mask device 10 of FIG.
- the plurality of through holes 45 of the second mask 40 are formed over the entire area of the perforated region 44 including the region overlapping the plurality of openings 35 of the first mask 30.
- the rigidity of the second mask 40 and the inside of the second mask 40 are lower than in the case where the through holes 45 are provided only in the portion corresponding to the display area of the deposition substrate (organic EL substrate) 92. Equalization of the internal stress (residual stress) which arises can be achieved.
- a region where the through hole 45 is not formed may exist outside the perforated region 44.
- the through holes 45 of the second mask 40 are plate members 32 of the first mask 30 from the first surface 20 a side of the deposition mask 20. Covered by In this case, the vapor deposition material 98 flying from the vapor deposition source located on the first surface 20 a side with respect to the vapor deposition mask 20 passes through the through holes 45 of the second mask 40 overlapping the opening 35 of the first mask 30. The deposition substrate 92 is reached through the holes 45.
- FIG. 7 is a partial plan view of the vapor deposition mask device 10, showing a portion surrounded by an alternate long and short dash line indicated by VII in FIG. 3 as viewed from the second surface 20b side of the vapor deposition mask 20. As shown in FIG. 7,
- the through hole 45 has a substantially rectangular shape in a plan view, and more specifically, a substantially rectangular outline in a plan view.
- each through hole 45 can have contours of various shapes according to the shape of the pixel of the organic EL display device 100.
- each through hole 45 may have a circular or slit-like contour.
- a notch 46 is formed in the outer edge 43 of the second mask 40 at a position corresponding to a position between two adjacent first bonding portions 16.
- the position corresponding to the position between the two adjacent first bonding portions 16 at the outer edge 43 of the second mask 40 is the position between the two adjacent first bonding portions 16, the second mask 40.
- the notch 46 is formed including the position corresponding to the center between the two adjacent first joints 16 at the outer edge 43 of the second mask 40. . That is, the outer edge is located in a direction perpendicular to the direction connecting the two adjacent first bonding portions 16 in the plate surface of the second mask 40 from the central position between the two adjacent first bonding portions 16.
- a notch 46 is formed including the 22 portions.
- the second mask 40 has such a notch 46, in the separation step in the method of manufacturing the vapor deposition mask 20 described later, the etchant penetrates from the outer edge 43 side of the second mask 40 through the notch 46. Therefore, the conductive pattern 52 located near the outer edge 43 can be easily etched away.
- Each notch 46 extends from the outer edge 43 of the second mask 40 toward the perforated region 44 in plan view.
- the notch 46 extends from the outer edge 43 of the second mask 40 toward the perforated region 44 with a certain width.
- the corner of the end of the notch 46 on the side of the perforated area 44 is rounded.
- the end on the perforated region 44 side of the notch 46 has a substantially semicircular shape.
- a joint piece 48 is formed between two adjacent notches 46.
- the joining piece 48 is located between two adjacent notches 46.
- the second mask 40 is bonded to the first mask 30 at the bonding piece 48. That is, the bonding piece 48 and the first mask 30 are fixed to each other via the first bonding portion 16.
- one first joint portion 16 is disposed on one joint piece 48.
- the plurality of bonding pieces 48 are arranged along the outer edge 43 of the second mask 40.
- the plurality of joint pieces 48 are arranged at equal intervals along the extending direction of the outer edge 22.
- Each bonding piece 48 extends from the outer edge 43 of the second mask 40 toward the perforated region 44 in plan view.
- the joint piece 48 has a constant width from the outer edge 43 of the second mask 40 toward the perforated area 44 except for a partial area on the perforated area 44 side. It extends with.
- each bonding piece 48 is disposed at the outermost periphery of the second mask 40. And the end 49 located on the opposite side to the perforated area 44 along the extending direction of each joint piece 48 constitutes a part of the outer edge 43 of the second mask 40. Therefore, in the present embodiment, a substantially rectangular virtual line formed by connecting the end portions 49 of the plurality of bonding pieces 48 forms the outer edge 43 of the second mask 40.
- the notch 46 has a first width W 1 along the direction of extension of the outer edge.
- the joint piece 48 has a second width W 2 along the direction in which the outer edge 22 extends.
- the first width W 1 of the notch 46 is larger than the second width W 2 of the joining piece 48.
- the first width W 1 of the notch 46 can be, for example, 1 mm or more and 10 mm or less.
- Second width W of the joining piece 48 2 may be, for example 1mm or 3mm or less.
- the length L of the joining piece 48 (the length of the notch 46) can be, for example, 1 mm or more and 5 mm or less.
- each step of an example of the manufacturing method of the vapor deposition mask 20 is shown by a cross-sectional view of each member.
- the substrate 51 is prepared.
- the material of the substrate 51 or the thickness of the substrate 51 as long as the insulating properties and the appropriate strength are provided.
- high light transmittance is used as a material constituting the base 51.
- the conductive pattern 52 is formed on one surface of the substrate 51.
- the conductive pattern 52 is provided with a pattern corresponding to the pattern of the second mask 40 to be formed in a film forming process described later.
- the conductive pattern 52 is provided to have the same pattern as the pattern of the second mask 40 to be formed in a film forming process described later.
- a material which comprises the conductive pattern 52 conductive materials, such as a metal material and an oxide conductive material, are used suitably.
- a metal material chromium, copper, etc. can be mentioned, for example.
- a material having high adhesion to a coating layer described later is used as the material forming the conductive pattern 52.
- the covering layer is produced by patterning a so-called dry film such as a resist film containing an acrylic photo-curable resin, copper is used as a material constituting the conductive pattern 52. Is preferred.
- the conductive pattern 52 can be formed by removing a portion other than the portion where the conductive pattern 52 is to be formed in the conductive layer provided on the substrate 51, for example, by etching. Specifically, first, a conductive layer made of the above-described conductive material is provided on the substrate 51 by sputtering, electroless plating, or the like. Next, a covering layer having a predetermined pattern is formed on the conductive layer. A photolithographic method etc. may be adopted as a method of forming a covering layer. Thereafter, the portion of the conductive layer not covered by the covering layer is removed by etching to remove the covering layer.
- the thickness of the conductive pattern 52 (the thickness of the conductive layer) can be, for example, 50 nm or more and 300 nm or less.
- a film forming step of forming the metal layer 42 on the conductive pattern 52 is performed.
- the metal layer 42 provided with the through holes 45 is formed on the conductive pattern 52.
- a plating solution is supplied onto the base material 51 on which the conductive pattern 52 is formed, and a plating process step of depositing the metal layer 42 on the conductive pattern 52 is performed.
- the substrate 51 on which the conductive pattern 52 is formed is immersed in a plating tank filled with a plating solution. By this, as shown in FIG. 9, the metal layer 42 which will later form the second mask 40 can be formed on the conductive pattern 52.
- the specific method of the plating process is not particularly limited.
- the plating process may be performed as a so-called electrolytic plating process in which the metal layer 42 is deposited on the conductive pattern 52 by supplying a current to the conductive pattern 52.
- the plating process may be an electroless plating process.
- an appropriate catalyst layer may be provided on the conductive pattern 52.
- the catalyst layer may be provided on the conductive pattern 52 also when the electrolytic plating process is performed.
- the components of the plating solution to be used are appropriately determined according to the characteristics required for the metal layer 42.
- a mixed solution of a solution containing a nickel compound and a solution containing an iron compound can be used as a plating solution.
- a mixed solution of a solution containing nickel sulfamate or nickel bromide and a solution containing ferrous sulfamate can be used.
- the plating solution may contain various additives.
- pH buffers such as boric acid, primary brighteners such as sodium saccharin, butynediol, propargyl alcohol, coumarin, formalin, secondary brighteners such as thiourea, antioxidants, etc. may be used.
- the laminate 60 includes a base 51, a conductive pattern 52 provided on the base 51, and a metal layer 42 provided on the side of the conductive pattern 52 opposite to the base 51.
- a bonding step of bonding the first mask 30 and the metal layer 42 to each other is performed.
- the metal layer 42 of the stacked body 60 is bonded to the first mask 30 at a plurality of first bonding portions (bonding portions) 16.
- the bonding piece 48 in the metal layer 42 is bonded to the first mask 30.
- spot welding etc. are employable, for example.
- the first mask 30 and the metal layer 42 are fixed relative to each other by laser spot welding.
- the first mask 30 is disposed so as to overlap the metal layer 42 such that the first mask 30 in which the plurality of openings are formed and the metal layer 42 are in contact with each other.
- the outer edge 33 of the first mask 30 is outward in the surface direction than the outer edge 43 of the metal layer 42 (the outer edge of the second mask 40). positioned.
- the bonding piece 48 of the metal layer 42 is irradiated with the laser light L1 from the base 51 side via the base material 51 from a side of the base material 51 to laser a part of the bonding piece 48 and a part of the first mask 30
- the heat generated by the irradiation of the light L1 is melted to weld and fix the joint piece 48 and the first mask 30.
- a first bonding portion 16 is formed, which is composed of the first mask 30 and the metal layer 42 which are solidified after being melted so as to straddle the bonding piece 48 and the first mask 30. Ru. That is, the first mask 30 and the metal layer 42 are bonded to each other through the first bonding portion 16.
- the metal layer 42 (second mask 40) and the thickness of the conductive pattern 52 are smaller than the thickness of the first mask 30, the metal layer 42 to the first mask 30 from the base 51 side.
- bonding between the metal layer 42 and the first mask 30 can be performed in a short time with less energy.
- YAG laser beam generated by a YAG laser device can be used.
- the YAG laser device for example, one provided with a crystal obtained by adding Nd (neodymium) to YAG (yttrium aluminum garnet) as a medium for oscillation can be used.
- the first mask 30 and the metal layer 42 may be bonded while pulling the periphery of the first mask 30 outward in the in-plane direction, that is, stretching. In this case, the residual stress in the metal layer 42 deforms the first mask 30 after the separation process described later, whereby the deformation of the entire vapor deposition mask 20 can be suppressed.
- a separation step of separating the combination of the first mask 30 and the metal layer 42 from the substrate 51 is performed.
- the separation step first, the combination is immersed in an etchant capable of selectively etching the conductive pattern 52.
- the combination is separated from the base material 51 by peeling it off. Thereafter, the combined body is again immersed in the etching solution, and the conductive pattern 52 attached to the metal layer 42 and remaining is completely etched away. Thereby, the base material 51 can be separated from the metal layer 42, and the second mask 40 can be formed from the metal layer 42.
- the conductive pattern 52 positioned in the opening 35 of the first mask 30 in plan view is exposed in the through hole 45 of the second mask 40. Therefore, the conductive pattern 52 is etched from the surface exposed in the through hole 45, that is, the side surface, by the etching solution that has entered into the through hole 45. In the illustrated example, the etching proceeds inward from the side surface of the conductive pattern 52. Thereby, the metal layer 42 of the 2nd mask 40 and the base material 51 are isolate
- the etching solution intrudes into the notch 46 from the outer edge 43 side of the second mask 40.
- the conductive pattern 52 present between the bonding piece 48 and the substrate 51 is exposed in the notch 46. Therefore, the conductive pattern 52 is etched from the exposed surface, that is, the side surface, in the notch 46 by the etchant in the notch 46.
- the first mask 30 and the second mask 40 are eroded by the etching solution.
- the metal layer 42 (second mask 40) and the base 51 may not be completely separated. That is, the metal layer 42 and the base material 51 may be partially connected by the conductive pattern 52. In this case, the conductive pattern 52 partially connecting the metal layer 42 and the base 51 is obtained by peeling the base 51 from the combination of the first mask 30 and the second mask 40. The base material 51 can be separated from the combined body by breaking. The conductive pattern 52 attached to and remaining on the metal layer 42 can be completely removed by etching by immersing the combined body in the etching solution again.
- FIG. 13 is a plan view showing the vapor deposition mask 20 and the frame 12, and in particular, the vapor deposition mask 20 viewed from the first surface 20a side.
- FIG. 14 is a cross-sectional view showing the deposition mask 20 and the frame 12.
- the metal layer 42 of the second mask 40 is a metal layer deposited using a plating method, a residual stress (internal stress) is generated in the metal layer 42, which causes in the plane of the metal layer 42. Tension may occur. The magnitude of the tensile force changes depending on the thickness, the composition, and the like of the metal layer 42. In the metal layer 42 made of the plating layer, unavoidable variations in thickness and composition occur in the surface, and in this case, in-plane variations may also occur in the tensile force in the metal layer 42. Therefore, in the metal layer 42 after removal of the base material 51, the positions of the through holes 45 may be deviated from the predetermined position due to the in-plane variation of the tensile force.
- each through hole 45 is corrected, and the tension of each clamp is individually adjusted so that each through hole 45 is disposed at a predetermined position.
- the alignment mark 37 provided on the first mask 30 is recognized by an imaging device such as a camera, and the tension of each clamp is individually adjusted so that the alignment mark 37 is disposed at a predetermined position.
- the through holes 45 are arranged at predetermined positions. Therefore, it can be said that this stretching step is a positioning step in which the vapor deposition mask 20 is stretched in the surface direction to align the positions of the through holes 45 with a predetermined position. This stretching step is performed before the mounting step described later.
- the alignment of the through holes 45 using the alignment mark 37 can be performed, for example, in the same manner as the method described in JP4606114B2 or JP4562488B2.
- the attachment process of attaching the vapor deposition mask 20 to the frame 12 is performed.
- the deposition mask 20 is bonded to the frame 12 through the plurality of second bonding portions 18.
- the vicinity of the outer edge 33 of the first mask 30 of the deposition mask 20 is bonded to the frame 12.
- spot welding etc. are employable, for example.
- the first mask 30 and the frame 12 are fixed relative to each other by laser spot welding.
- the vapor deposition mask 20 is aligned with the frame 12 in a stretched state, and disposed so as to be in contact with the frame 12.
- the deposition mask 20 is in contact with the frame 12 so that the surface opposite to the second mask 40 in the vicinity of the outer edge 33 of the first mask 30 is in contact. Place.
- the deposition mask 20 (first mask 30) is irradiated with the laser light L2 from the second surface 20b side, and a part of the first mask 30 and a part of the frame 12 are irradiated with the laser light L2.
- the generated heat melts and fixes the first mask 30 and the frame 12 to each other by welding.
- the second bonding portion 18 including the portion of the first mask 30 and the frame 12 solidified after being melted is formed so as to straddle the first mask 30 and the frame 12. That is, the first mask 30 and the frame 12 are bonded to each other through the second bonding portion 18. Thereby, the vapor deposition mask device 10 shown in FIG. 4 can be manufactured.
- the laser beam and laser apparatus which were used at the bonding process in the manufacturing method of the above-mentioned vapor deposition mask 20 can be used, for example.
- a deposition mask apparatus is manufactured by having only the second mask and directly bonding the second mask to the frame.
- an attachment process is first performed to manufacture a deposition mask device.
- the frame is placed in contact with the metal layers of the laminate shown in FIG.
- the metal layer is irradiated with laser light from the substrate side through the base material, and a part of the metal layer and a part of the frame are melted by heat generated by the laser light irradiation, Weld the metal layer and the frame together.
- a separation step is performed.
- the combination of the substrate, the conductive pattern, the metal layer and the frame is immersed in an etchant capable of selectively etching the conductive pattern.
- the metal layer is then peeled away from the substrate and separated.
- a base material is isolate
- a 2nd mask is formed from a metal layer
- the vapor deposition mask apparatus which has a 2nd mask (vapor deposition mask) and the flame
- the frame has a relatively large weight due to its large thickness dimensions and density compared to the substrate. Therefore, in the comparative embodiment, when the combined body is held with the frame positioned above the substrate, the weight of the frame is applied to the substrate, and the substrate may be broken. Therefore, in the comparative embodiment, in the separation step, it is necessary to hold the combination body such that the substrate is positioned above the frame. In this case, the substrate, the conductive pattern metal layer and the frame are disposed in order from the top. When the combination is immersed in the etching solution in this state, air may enter into the area surrounded by the frame below the metal layer and bubbles may occur.
- the member joined to the second mask 40 is the first mask 30 whose thickness is smaller than that of the frame. Therefore, the first mask 30, the second mask 40, the conductive pattern 52, and the substrate 51 are held such that the substrate 51 is positioned above the first mask 30 and the second mask 40 in the separation step. Even if it is immersed in the etching solution, air bubbles are less likely to occur below the metal layer. Thereby, it is possible to suppress the occurrence of in-plane variation in the progress speed of etching in the conductive pattern. Therefore, when peeling a base material from a metal layer, it becomes possible to suppress that a metal layer is damaged or wrinkles arise in a metal layer.
- the frame has a high overall stiffness compared to the substrate. Therefore, in the comparative embodiment, when peeling the base material from the metal layer, the force applied for peeling is concentrated on the base material, and the base material and the metal layer may be broken. In particular, in the case where the metal layer and the base are not completely separated in the etching removal step of the conductive pattern, and the metal layer and the base are partially connected by the conductive pattern, the base There is an increased risk of breakage of the material and the metal layer.
- the member joined to the second mask 40 is the first mask 30 whose overall rigidity is smaller than that of the frame. Therefore, when peeling a base material from a metal layer, it can suppress that the force applied for peeling is concentrated on a base material.
- the apparatus transport apparatus, etching tank, etc.
- the apparatus for handling the combination may be large. This leads to an increase in the cost of the device, an increase in the installation area, and the like.
- the apparatus for handling the combination can be miniaturized.
- the device for handling the combination can be further miniaturized.
- the deposition mask 20 manufactured by the method of manufacturing the deposition mask 20 described above with reference to FIGS. 8 to 12 is prepared (preparation step).
- the deposition mask 20 is fixed to the frame 12 and prepared as the deposition mask device 10.
- the deposition mask apparatus 10 is disposed such that the deposition mask 20 faces the deposition target substrate 92 (arrangement step).
- the deposition mask 20 is closely attached to the deposition target substrate 92 using the magnet 93.
- the deposition target substrate 92, the deposition mask device 10, and the magnet 93 are carried into the deposition device 90 (loading step).
- the deposition mask device 10 is disposed so that the deposition mask 20 faces the deposition substrate 92 after the deposition substrate 92, the deposition mask device 10, and the magnet 93 are carried into the deposition device 90, respectively. It is also good. Thereafter, the atmosphere (air) in the vapor deposition apparatus 90 is exhausted by an exhaust unit (not shown) to decompress the inside of the vapor deposition apparatus 90 (exhaust process). Next, the vapor deposition material 98 is evaporated and made to fly to the vapor deposition substrate 92 through the vapor deposition mask 20 to adhere the vapor deposition material 98 to the vapor deposition substrate 92 in a pattern corresponding to the through holes 25 of the vapor deposition mask 20 ( Vapor deposition process).
- an atmosphere is introduced into the vapor deposition apparatus 90, and the inside of the vapor deposition apparatus 90 is returned to normal pressure (introduction process).
- the deposition substrate 92 to which the deposition material 98 is attached, the deposition mask 20, the frame 12, and the magnet 93 are carried out of the deposition apparatus 90 (carrying out step), and the deposition mask 20 is peeled off from the deposition substrate 92. 20, remove the frame 12 and the magnet 93 (removal process).
- the vapor deposition mask 20 includes the first mask 30 in which the opening 35 is formed, and the plurality of through holes that are superimposed on the first mask 30 and have surface dimensions smaller than the surface dimension of the opening 35. And a plurality of bonding portions 16 for bonding the second mask 40 and the first mask 30 to each other, the plurality of bonding portions 16 being an outer edge of the second mask 40.
- the notches 46 are formed at positions corresponding to the outer edge 43 of the second mask 40 between the two adjacent joints 16, which are arranged along the line 43.
- the vapor deposition mask device 10 includes the vapor deposition mask 20 described above and the frame 12 attached to the vapor deposition mask 20.
- the first mask 30 having the opening 35 and the plurality of through holes 45 having dimensions smaller than the opening 35 are formed on the first mask 30.
- the flatness of the metal layer 42 is obtained by bonding the first mask 30 and the metal layer 42 to each other in a state where the metal layer 42 is supported on the substrate 51. Can be secured well. Therefore, the occurrence of wrinkles and deformation in the metal layer 42 can be effectively suppressed.
- the plurality of bonding portions 16 are arranged along the outer edge 43 of the metal layer 42 and adjacent to the arranging direction of the plurality of bonding portions 16 at the outer edge 43 of the metal layer 42.
- a notch 46 is formed at a corresponding position between the two mating joints 16.
- the notch 46 is interposed from the outer edge 43 side of the second mask 40. Since the etching solution can be made to enter, the conductive pattern 52 located in the vicinity of the outer edge 43 can be easily etched away.
- the method of manufacturing the vapor deposition mask device 10 is a method of manufacturing the vapor deposition mask device 10 including the vapor deposition mask 20 and the frame 12 attached to the vapor deposition mask 20. Or the preparation process of preparing the vapor deposition mask 20 manufactured by the manufacturing method of the above-mentioned vapor deposition mask 20, The attachment process of attaching the vapor deposition mask 20 to the flame
- the manufacturing method of the vapor deposition mask apparatus 10 of this Embodiment further has the stretching process of stretching the vapor deposition mask 20 in the surface direction before the attachment process.
- the metal layer 42 of the second mask 40 is a metal layer deposited using a plating method
- a residual stress internal stress
- Force can occur.
- the magnitude of the tensile force changes depending on the thickness, the composition, and the like of the metal layer 42.
- unavoidable variations in thickness and composition occur in the surface, and in this case, in-plane variations may also occur in the tensile force in the metal layer 42. Therefore, in the metal layer 42 after removal of the base material 51, the positions of the through holes 45 may be deviated from the predetermined position due to the in-plane variation of the tensile force.
- the positions of the through holes 45 are corrected such that the through holes 45 are arranged at predetermined positions. Since the deposition mask 20 can be attached to the frame 12, the positional accuracy of the through holes 45 of the deposition mask 20 can be improved. That is, positional deviation that may occur in the through holes 45 of the vapor deposition mask 20 can be effectively suppressed.
- FIGS. 15 to 17 are diagrams for explaining a modification of the method of manufacturing the vapor deposition mask device 10.
- each step of the manufacturing method of the vapor deposition mask device 10 of the present modification is shown in plan view of each member.
- the deposition mask 20 shown in FIG. 15 manufactured in the same manner as the method of manufacturing the deposition mask 20 described with reference to FIGS. Three deposition masks 20 are manufactured.
- the two deposition masks 20 are stretched and attached to the frame 12 shown in FIG. 16 respectively, and the deposition mask apparatus 10 shown in FIG. 17 is manufactured.
- the frame 12 connects the central portions of the frame member formed in a substantially rectangular shape in plan view and one of the two opposite sides of the frame member. And a connecting member.
- frame 12 of the vapor deposition mask 20 can be performed like the above-mentioned attachment process.
- the divided vapor deposition masks 20 can be stretched independently of each other, the positions of the through holes 45 of the vapor deposition masks 20 can be corrected with higher accuracy.
- FIGS. 18 and 19 are views for explaining another modified example of the method of manufacturing the vapor deposition mask device 10.
- FIG. 18 and FIG. 19 each process of the manufacturing method of the vapor deposition mask apparatus 10 of this modification is shown by the top view of each member.
- each stacked body 60 has a size corresponding to one opening 35 of the first mask 30.
- the above-described bonding step and separation step are performed on each stacked body 60.
- each stack 60 is aligned with the opening 35 of the first mask 30 and bonded to the first mask 30. Bonding of the stacked body 60 to the first mask 30 can be performed in the same manner as the bonding step described above.
- the base 51 of each laminate 60 is separated from the metal layer 42. Thereby, the vapor deposition mask 20 is produced.
- two vapor deposition masks 20 are manufactured.
- each vapor deposition mask 20 is stretched and attached to, for example, the frame 12 shown in FIG. 16 to manufacture the vapor deposition mask device 10 shown in FIG.
- the invention is not limited thereto, and one large vapor deposition mask 20 may be manufactured and attached to the frame 12 similar to the frame 12 in the example shown in FIG.
- the size of one stacked body 60 (second mask 40) is made to correspond to the size of one opening 35 of the first mask 30, the shape of the through hole 45 in the stacked body 60 It is possible to reduce the portion discarded due to defects and the like, and to improve the yield as a whole.
- FIGS. 20 to 22 are views for explaining still another modified example of the method of manufacturing the vapor deposition mask device 10.
- each process of the manufacturing method of the vapor deposition mask device 10 of the present modification is shown in plan view of each member.
- each first mask 30 has one opening 35, and each stack 60 has a size corresponding to one opening 35 of the first mask 30.
- the above-described bonding step and separation step are performed on each of the stacked bodies 60 and the first mask 30.
- one stack 60 is aligned with one first mask 30 and bonded to the first mask 30. Bonding of the stacked body 60 to the first mask 30 can be performed in the same manner as the bonding step described above.
- the base 51 of the laminate 60 is separated from the metal layer 42. Thereby, one vapor deposition mask 20 is produced.
- a plurality of deposition masks 20 are manufactured by repeating this a plurality of times.
- each vapor deposition mask 20 is stretched, and aligned and attached to each opening of the frame 12 having a lattice-like planar shape shown in FIG. 21, for example, and the vapor deposition mask device 10 shown in FIG. Manufacture.
- the size of one stacked body 60 (second mask 40) is made to correspond to the size of one opening 35 of the first mask 30, the shape of the through hole 45 in the stacked body 60 It is possible to reduce the portion discarded due to defects and the like, and to improve the yield as a whole.
- FIGS. 23 and 24 are views for explaining still another modified example of the method of manufacturing the vapor deposition mask device 10.
- each process of the manufacturing method of the vapor deposition mask apparatus 10 of this modification is shown by the top view of each member.
- each vapor deposition mask 20 includes a first mask 30 having a plurality of openings 35 aligned along one direction (second direction D2), and extends in one direction as a whole. It has a stick-like planar shape.
- each vapor deposition mask 20 is stretched and attached to a frame 12 similar to the frame 12 in the example shown in FIG. 3, for example, to manufacture the vapor deposition mask device 10 shown in FIG.
- the attachment of the deposition mask 20 to the frame 12 can be performed in the same manner as the attachment process described above.
- in the stretching step only each end in the longitudinal direction of the vapor deposition mask 20 having a stick-like planar shape is held by a plurality of clamps, respectively, in the longitudinal direction (second direction D2). It can be stretched along.
- FIG. 25 is a partial plan view showing a modification of the second mask 40 of the vapor deposition mask 20.
- the width W 11 along the long sides of the plurality of notches 46 arranged along the long sides of the second mask 40 (along the first direction D1) corresponds to FIG. It is larger than the first width W 1 of the cutout 46 in the embodiment described Te.
- a plurality of notches 46 and the joining piece 48 arranged along the long sides (along the first direction D1) of the second mask 40 respectively have a width W 11 and the width W 12.
- a plurality of notches 46 and the joining piece 48 of the short sides in along (along the second direction D2) arranged in the second mask 40 respectively have a width W 21 and the width W 22.
- the width W 11 is greater than the width W 21.
- the width W 12 and the width W 22, may be identical to each other.
- the second mask 40 When the second mask 40 has the metal layer 42 deposited using a plating method, a residual stress (internal stress) is generated in the metal layer 42, which causes tension in the plane of the metal layer 42. Force can occur. The magnitude of this tensile force varies with the thickness of the metal layer.
- the thickness of the joint piece 48 of the second mask 40 is set to a perforated region 44 in order to ensure appropriate bondability. It is set larger than the thickness of. Therefore, a larger in-plane tensile force can be generated in the joint piece 48 than in the perforated area 44.
- the width W 11 along the long sides of the plurality of notches 46 arranged along the long side of the second mask 40 is the notch 46 in the embodiment described with reference to FIG. since the first is greater than the width W 1 of, reduces the plane tensile force by joining pieces 48, a reduction in the positional accuracy of the through-holes 45 of the perforated region 44 due to in-plane tensile force It can be effectively suppressed.
- FIG. 26 is a partial plan view showing another modification of the second mask 40.
- the width W 11 along the long sides of the plurality of notches 46 arranged along the long sides of the second mask 40 (along the first direction D1) corresponds to FIG.
- the width W 21 along the short side of the notch 46 is larger than the first width W 1 of the notch 46 in the embodiment described with reference to FIG.
- the width W 11 and the width W 21 may be identical or different
- the width W 12 and the width W 22, may be identical to each other.
- FIG. 27 is a partial plan view showing still another modified example of the second mask 40.
- the width W 112 of some of the plurality of notches 46 arranged along the long side of the second mask 40 (along the first direction D1) is the other notch It is larger than the width W 111 of 46.
- the width W 112 of every third notch 46 is greater than the width W 111 of the other notches 46.
- the width W 212 of some of the plurality of notches 46 arranged along the short side of the second mask 40 (along the second direction D2) Is larger than the width W 211 of the notch 46.
- the width W 212 of one in three notches 46 is greater than the width W 211 of the other notches 46.
- the second mask 40 has a plurality of joint strip groups G arranged along the outer edge thereof.
- One joint strip group G includes a plurality of joint strips 48.
- one joint strip group G includes three joint strips 48.
- FIG. 28 and 29 are partial plan views showing still another modified example of the second mask 40.
- FIG. 28 the width of the distal end portion 48 a of the joint piece 48 is larger than the width of the proximal end portion 48 b.
- the tip portion 48a has a substantially circular outline in a plan view.
- the tip end portion 48a has a substantially rectangular outline in a plan view.
- the shape of the distal end portion 48a is not limited to a substantially circular shape or a substantially rectangular shape, and can be any shape.
- welding can be performed to the first mask 30 at the tip portion 48a. Therefore, the relatively wide width of the distal end portion 48 a can ensure appropriate bonding to the first mask 30, and the relatively small width of the proximal end portion 48 b allows perforation from the joint piece 48.
- the in-plane tensile force acting on the region 44 can be reduced, and the decrease in the positional accuracy of the through hole 45 in the perforated region 44 due to the in-plane tensile force can be effectively suppressed.
- FIG. 30 is a partial plan view showing still another modified example of the second mask 40.
- the width of the joint piece 48 increases from the distal end side (the end 49 side) of the joint piece 48 toward the proximal end side (the perforated region 44 side).
- the joint piece 48 has a substantially trapezoidal outline in plan view.
- the joint piece 48 has an outline of a substantially isosceles trapezoidal shape in plan view.
- the in-plane tensile force acting on the perforated area 44 from the joint piece 48 can be dispersed. Therefore, the in-plane tensile force by the joint piece 48 can be uniformly applied to each portion of the perforated region 44, whereby the through holes 45 in the perforated region 44 due to the in-plane tensile force of the joint piece 48. A decrease in position accuracy can be effectively suppressed.
- FIG. 31 is a plan view showing still another modified example of the second mask 40.
- the width of the joint piece 48 increases from the distal side to the proximal side of the joint piece 48, as in the modification described with reference to FIG. Thereby, the fall of the position accuracy of penetration hole 45 in perforated field 44 resulting from in-plane tensile force of joined piece 48 can be controlled effectively.
- the plurality of bonding pieces 48 arranged along the long side of the second mask 40 have different shapes with respect to the center of the long side. Further, the plurality of bonding pieces 48 arranged along the short side of the second mask 40 have different shapes with respect to the center of the short side.
- the joint piece 48 has an outline of a substantially trapezoidal shape in a plan view, and the end 49 and the base end that constitute the upper and lower bases of the trapezoidal shape, and the two legs that form a substantially trapezoidal shape.
- the two sides 481 and 482 include a first side 481 facing the corner of the second mask 40 closest to the joint piece 48 and a second side 482 facing away from the corner.
- the angle between the second side 482 of the joint piece 48 and the outer edge 43 passing through the end 49 of the joint piece 48 is the first side 481 of the joint piece 48 and the end 49 of the joint piece 48. It is larger than the angle formed with the passing outer edge 43.
- the angle between the side 481 and 482 and the outer edge 43 is defined in the range of more than 0 degree and 90 degrees or less. In the illustrated example, the angle between the first side 481 and the outer edge 43 is 90 degrees, and the angle between the second side 482 and the outer edge 43 is less than 90 degrees.
- the in-plane tensile force in the metal layer 42 deposited using the plating method is compared along the direction (diagonal direction) connecting the center of the second mask 40 and each corner. Act greatly. According to the present modification, it is possible to reduce the angle between the direction in which the joining piece 48 extends from its proximal end toward the distal end and the direction in which the in-plane tensile force in the metal layer 42 acts largely. . Therefore, it is possible to suppress the occurrence of variations in in-plane tensile force acting in the perforated region 44.
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Abstract
Description
少なくとも第1方向に沿って並ぶ複数の開口部が形成された第1マスクと、
前記第1マスクに重ねられ、前記開口部の面方向寸法よりも小さい面方向寸法を有する複数の貫通孔が形成された第2マスクと、を備え、
前記第2マスクと前記第1マスクとを互いに接合する複数の接合部を有し、
前記複数の接合部は、前記第2マスクの外縁に沿って配列されており、
前記第2マスクの前記外縁における、隣り合う二つの前記接合部の間に対応する位置に、切欠きが形成されている。
少なくとも第1方向に沿って並ぶ複数の開口部が形成された第1マスクと、
前記第1マスクに重ねられ、前記開口部よりも小さい寸法を有する複数の貫通孔が形成された第2マスクと、を備えた蒸着マスクの製造方法であって、
基材と、前記基材上に設けられた導電性パターンと、前記導電性パターンの前記基材と反対側に設けられた金属層と、を有する積層体の前記金属層を複数の接合部で前記第1マスクに接合する接合工程と、
前記導電性パターンをエッチング除去して前記基材を前記金属層から分離し、前記金属層から前記第2マスクを形成する分離工程と、を有する。
前記複数の接合部は、前記金属層の外縁に沿って配列され、
前記金属層の前記外縁における、前記複数の接合部の配列方向に隣り合う二つの前記接合部の間に対応する位置に、切欠きが形成されていてもよい。
蒸着マスクと、前記蒸着マスクに取り付けられたフレームと、を備えた蒸着マスク装置の製造方法であって、
上述の蒸着マスク、又は、上述の蒸着マスクの製造方法により製造された蒸着マスク、を準備する準備工程と、
前記蒸着マスクをフレームに取り付ける取付工程と、を有する。
前記取付工程の前に、前記蒸着マスクをその面方向に架張する架張工程をさらに有してもよい。
本開示によれば、貫通孔の位置ずれを抑制し得る蒸着マスク、蒸着マスク装置並びに蒸着マスク及び蒸着マスク装置の製造方法を提供することができる。
はじめに、蒸着マスク装置10を製造するために用いられるパターン基板50を作製する方法の一例について説明する。はじめに、基材51を準備する。絶縁性及び適切な強度を有する限りにおいて、基材51を構成する材料や基材51の厚さが特に限られることはない。後述するように、第1マスク30と第2マスク40とが、基材51を介したレーザー光の照射により溶接固定される場合には、基材51を構成する材料として、高い光透過性を有するガラス材料が好適に使用され得る。
次に、金属層42を導電性パターン52上に形成する成膜工程を実施する。成膜工程では、貫通孔45が設けられた金属層42を導電性パターン52上に形成する。具体的には、導電性パターン52が形成された基材51上にめっき液を供給して、導電性パターン52上に金属層42を析出させるめっき処理工程を実施する。例えば、導電性パターン52が形成された基材51を、めっき液が充填されためっき槽に浸す。これによって、図9に示すように、導電性パターン52上に、後に第2マスク40をなす金属層42を形成することができる。
次に、第1マスク30と金属層42とを互いに接合する接合工程を実施する。接合工程では、積層体60の金属層42を、複数の第1接合部(接合部)16で第1マスク30に接合する。とりわけ本実施の形態では、金属層42における接合片48が、第1マスク30に対して接合される。接合方法としては、例えば、スポット溶接などを採用することができる。図10に示された例では、第1マスク30と金属層42とが、レーザースポット溶接により互いに対して固定される。
次に、第1マスク30及び金属層42の組み合わせ体を基材51から分離させる分離工程を実施する。分離工程では、まず、組み合わせ体を、導電性パターン52を選択的にエッチング可能なエッチング液に浸漬する。次に、組み合わせ体を基材51から引き剥がして分離させる。その後、組み合わせ体を再度エッチング液に浸漬し、金属層42に付着して残存している導電性パターン52を完全にエッチング除去する。これにより、基材51を金属層42から分離し、金属層42から第2マスク40を形成することができる。
まず、図8~図12を参照して上述した蒸着マスク20の製造方法により製造された蒸着マスク20を準備する。
次に、蒸着マスク20に対して面方向に張力を付与する、すなわち蒸着マスク20をその面方向に架張する、架張工程を行う。図13に示されているように、矩形状をなす蒸着マスク20の各辺を、それぞれ複数の図示しないクランプで保持し、各クランプを蒸着マスク20に対して面方向外側に向かって引張ることにより、蒸着マスク20を架張する。
次に、蒸着マスク20をフレーム12に取り付ける取付工程を実施する。取付工程では、蒸着マスク20を複数の第2接合部18を介してフレーム12に接合する。とりわけ本実施の形態では、蒸着マスク20の第1マスク30における外縁33の近傍が、フレーム12に対して接合される。接合方法としては、例えば、スポット溶接などを採用することができる。図14に示された例では、第1マスク30とフレーム12とが、レーザースポット溶接により互いに対して固定される。
Claims (6)
- 開口部が形成された第1マスクと、
前記第1マスクに重ねられ、前記開口部の面方向寸法よりも小さい面方向寸法を有する複数の貫通孔が形成された第2マスクと、を備え、
前記第2マスクと前記第1マスクとを互いに接合する複数の接合部を有し、
前記複数の接合部は、前記第2マスクの外縁に沿って配列されており、
前記第2マスクの前記外縁における、隣り合う二つの前記接合部の間に対応する位置に、切欠きが形成されている、蒸着マスク。 - 請求項1に記載の蒸着マスクと、前記蒸着マスクに取り付けられたフレームと、を備えた蒸着マスク装置。
- 開口部が形成された第1マスクと、
前記第1マスクに重ねられ、前記開口部よりも小さい寸法を有する複数の貫通孔が形成された第2マスクと、を備えた蒸着マスクの製造方法であって、
基材と、前記基材上に設けられた導電性パターンと、前記導電性パターンの前記基材と反対側に設けられた金属層と、を有する積層体の前記金属層を複数の接合部で前記第1マスクに接合する接合工程と、
前記導電性パターンをエッチング除去して前記基材を前記金属層から分離し、前記金属層から前記第2マスクを形成する分離工程と、を有する、蒸着マスクの製造方法。 - 前記複数の接合部は、前記金属層の外縁に沿って配列され、
前記金属層の前記外縁における、前記複数の接合部の配列方向に隣り合う二つの前記接合部の間に対応する位置に、切欠きが形成されている、請求項3に記載の蒸着マスクの製造方法。 - 蒸着マスクと、前記蒸着マスクに取り付けられたフレームと、を備えた蒸着マスク装置の製造方法であって、
請求項1に記載の蒸着マスク、又は、請求項3若しくは4に記載の蒸着マスクの製造方法により製造された蒸着マスク、を準備する準備工程と、
前記蒸着マスクをフレームに取り付ける取付工程と、を有する、蒸着マスク装置の製造方法。 - 前記取付工程の前に、前記蒸着マスクをその面方向に架張する架張工程をさらに有する、請求項5に記載の蒸着マスク装置の製造方法。
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KR1020207003256A KR102418174B1 (ko) | 2017-07-05 | 2018-06-18 | 증착 마스크, 증착 마스크 장치, 증착 마스크의 제조 방법 및 증착 마스크 장치의 제조 방법 |
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US16/726,431 US11380546B2 (en) | 2017-07-05 | 2019-12-24 | Deposition mask, deposition mask apparatus, manufacturing method of deposition mask, and manufacturing method of deposition mask apparatus |
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WO2020158302A1 (ja) * | 2019-02-01 | 2020-08-06 | 株式会社ジャパンディスプレイ | 蒸着マスク |
JP2020164913A (ja) * | 2019-03-29 | 2020-10-08 | マクセルホールディングス株式会社 | 蒸着マスク |
WO2023145950A1 (ja) * | 2022-01-31 | 2023-08-03 | 大日本印刷株式会社 | 蒸着マスク、フレーム付き蒸着マスク、蒸着マスクの製造方法、有機デバイスの製造方法及びフレーム付き蒸着マスクの製造方法 |
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KR102418174B1 (ko) * | 2017-07-05 | 2022-07-08 | 다이니폰 인사츠 가부시키가이샤 | 증착 마스크, 증착 마스크 장치, 증착 마스크의 제조 방법 및 증착 마스크 장치의 제조 방법 |
WO2020009088A1 (ja) * | 2018-07-03 | 2020-01-09 | 大日本印刷株式会社 | マスク及びその製造方法 |
JP6838693B2 (ja) * | 2019-01-31 | 2021-03-03 | 大日本印刷株式会社 | 蒸着マスク群、電子デバイスの製造方法及び電子デバイス |
KR20200096877A (ko) | 2019-02-06 | 2020-08-14 | 다이니폰 인사츠 가부시키가이샤 | 증착 마스크 장치, 마스크 지지 기구 및 증착 마스크 장치의 제조 방법 |
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Also Published As
Publication number | Publication date |
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TWI684653B (zh) | 2020-02-11 |
EP3650575A1 (en) | 2020-05-13 |
KR102418174B1 (ko) | 2022-07-08 |
KR20200026280A (ko) | 2020-03-10 |
CN109207919A (zh) | 2019-01-15 |
EP3650575A4 (en) | 2021-04-21 |
CN208485938U (zh) | 2019-02-12 |
US11380546B2 (en) | 2022-07-05 |
JPWO2019009050A1 (ja) | 2020-04-30 |
US20200152463A1 (en) | 2020-05-14 |
JP7008288B2 (ja) | 2022-01-25 |
CN109207919B (zh) | 2020-12-08 |
TW201907029A (zh) | 2019-02-16 |
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