CN219686826U - Metal screen plate - Google Patents
Metal screen plate Download PDFInfo
- Publication number
- CN219686826U CN219686826U CN202320502819.2U CN202320502819U CN219686826U CN 219686826 U CN219686826 U CN 219686826U CN 202320502819 U CN202320502819 U CN 202320502819U CN 219686826 U CN219686826 U CN 219686826U
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- screen
- grid
- holes
- line
- auxiliary
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- 239000002184 metal Substances 0.000 title claims abstract description 65
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 65
- 238000004891 communication Methods 0.000 claims description 13
- 229910003460 diamond Inorganic materials 0.000 claims description 2
- 239000010432 diamond Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 21
- 239000000758 substrate Substances 0.000 abstract description 8
- 239000002131 composite material Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 35
- 239000000956 alloy Substances 0.000 description 8
- 229910020637 Co-Cu Inorganic materials 0.000 description 7
- 229910052802 copper Inorganic materials 0.000 description 7
- 229910017709 Ni Co Inorganic materials 0.000 description 6
- 229910003267 Ni-Co Inorganic materials 0.000 description 6
- 229910003262 Ni‐Co Inorganic materials 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000007935 neutral effect Effects 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 5
- 238000007650 screen-printing Methods 0.000 description 4
- 239000002356 single layer Substances 0.000 description 4
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 238000000576 coating method Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000052 poly(p-xylylene) Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/34—Screens, Frames; Holders therefor
- B41F15/36—Screens, Frames; Holders therefor flat
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/0224—Electrodes
- H01L31/022408—Electrodes for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/022425—Electrodes for devices characterised by at least one potential jump barrier or surface barrier for solar cells
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2215/00—Screen printing machines
- B41P2215/10—Screen printing machines characterised by their constructional features
- B41P2215/12—Screens
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Printing Plates And Materials Therefor (AREA)
Abstract
The utility model relates to a metal screen plate, comprising: the first screen structure comprises a plurality of first screen grid lines, and the first screen structure is formed by metal; the second screen structure comprises a plurality of second screen grid lines, and the second screen structure is formed by metal; the second screen grid lines are arranged on one side of the surface of the first screen grid lines, first grid holes are formed between the adjacent first screen grid lines, second grid holes are formed between the adjacent second screen grid lines, and the first grid holes are communicated with the second grid holes; the buffer structure is arranged at least at one edge of the metal screen plate and is parallel to the first grid holes. The auxiliary grid lines are arranged in the screen plate, so that the composite screen plate has strong toughness. The auxiliary grid lines are provided with the mesh openings, so that the material to be printed can fall onto the substrate to be printed through the mesh openings, and the performance of the substrate to be printed can be improved.
Description
Technical Field
The utility model relates to the technical field of solar cell electrodes, in particular to a metal screen printing plate capable of preparing a solar cell electrode.
Background
This section provides merely background information related to the present disclosure and is not necessarily prior art.
In the conventional screen printing plate structure, a cross structure of warp and weft is generated on the mesh cloth, and an opening pattern is formed at the cross node of the warp and weft through a drawing or alignment process to form a mesh-free mesh cloth. Although such a structure has less knots blocking, it is understood that, in addition to knots blocking, the warp and weft yarns are woven using a top-to-bottom cross-weave method, which results in less ink-permeable space for the opening pattern when the yarns are in the lower position.
On the other hand, the existing screen plate structure adopts the combination of a PI film and a steel wire mesh, the line width of an electrode formed by the structure has uncontrollability, and the fluctuation of the electrode is obvious, so that the electrical property of the prepared electrode is greatly influenced; furthermore, the screen printing plate needs to be stretched in the using process, and the connection between grid lines in the prior art is easy to break, so that the screen printing plate cannot be used.
Disclosure of Invention
The object of the present utility model is to solve at least one of the above-mentioned problems. The aim is achieved by the following technical scheme:
the embodiment of the utility model provides a metal screen plate, which comprises the following components:
the first screen structure comprises a plurality of first screen grid lines, and the first screen structure is formed by metal;
the second screen structure comprises a plurality of second screen grid lines, and the second screen structure is formed by metal;
the second screen grid lines are arranged on one side of the surface of the first screen grid lines, first grid holes are formed between the adjacent first screen grid lines, second grid holes are formed between the adjacent second screen grid lines, and the first grid holes are communicated with the second grid holes;
the buffer structure is arranged at least at one edge of the metal screen plate and is parallel to the first grid holes.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
FIG. 1 is a schematic view of a metal screen according to a first embodiment of the present utility model;
FIG. 2 is an enlarged view of a metal screen according to a first embodiment of the present utility model;
FIG. 3 is an enlarged schematic view of a metal screen according to a first embodiment of the present utility model;
FIG. 4 is a schematic view showing a part of an enlarged structure of a first metal screen in a first embodiment of the present utility model;
FIG. 5 is a partially enlarged schematic illustration of a first metal screen structure according to a first embodiment of the present utility model;
FIG. 6 is a schematic cross-sectional view of a metal screen according to a first embodiment of the present utility model;
FIG. 7 is a schematic view showing another cross-sectional structure of a metal screen according to the first embodiment of the present utility model;
FIG. 8 is a schematic view showing another cross-sectional structure of a metal screen according to the first embodiment of the present utility model;
FIG. 9 is a schematic view showing another cross-sectional structure of a metal screen according to the first embodiment of the present utility model;
FIG. 10 is an enlarged schematic view of a metal screen according to a first embodiment of the present utility model;
FIG. 11 is a schematic view of a metal screen according to a second embodiment of the present utility model;
FIG. 12 is a schematic view of another structure of a metal screen according to a second embodiment of the present utility model;
FIG. 13 is a schematic view of another structure of a metal screen edge according to a second embodiment of the present utility model;
FIG. 14 is a schematic view of another structure of a metal screen edge according to a second embodiment of the present utility model;
fig. 15 is a schematic view of another structure of a metal screen edge according to a second embodiment of the present utility model.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
For ease of description, spatially relative terms, such as "inner," "outer," "lower," "below," "upper," "above," and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein interpreted accordingly.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
In the present utility model, a range expressed by "one value to another value" is a general expression which avoids the specification from listing all the values in the range. Thus, recitation of a particular numerical range includes any numerical value within that range, as well as the smaller numerical range bounded by any numerical value within that range, as if the any numerical value and the smaller numerical range were written in the specification in the clear.
The utility model provides a metal screen plate, which can be used for preparing electrode grid lines, the prepared electrode grid lines can be used in the field of solar cells, the width of the electrode grid lines prepared by the screen plate is controllable, the electrode grid lines are uniform in appearance and good in firmness, and the screen plate comprises:
the first screen structure comprises a plurality of first screen grid lines; the material used by the first screen structure can be Ni material, PI film, alloy of Ni and other materials, of course, ni material or other metal material is formed on the surface of the first screen structure; the adjacent first grid lines can be arranged in parallel or approximately in parallel, and of course, the first grid lines are preferably arranged in parallel;
the second screen structure comprises a plurality of second screen grid lines; the material used in the second screen structure may be a Ni material, or an alloy of Ni and other materials, or of course, a Ni material or other metal material may be formed on the surface of the second screen structure; the adjacent second grid lines can be arranged in parallel or approximately in parallel, preferably in parallel;
the second screen grid lines are arranged on the surface of the first screen grid lines, namely the first screen grid lines and the second screen grid lines are overlapped, first grid holes are formed between the adjacent first screen grid lines, second grid holes are formed between the adjacent second screen grid lines, the first grid holes are communicated with the second grid holes, and as the first screen grid lines and the second screen grid lines are overlapped, the first grid holes and the second grid holes are correspondingly overlapped, but the first grid holes and the second grid holes are communicated; the first grid holes are arranged at equal widths, or can be arranged along with the extension change of the first grid holes, for example, the top view or the plane projection view of the first grid holes is rectangular, for example, the top view or the plane projection view is trapezoid, and the first grid holes can also be of a special-shaped structure; the second grid holes are arranged similarly to the first grid holes;
the auxiliary grid lines are arranged between the adjacent second screen grid lines, divide the adjacent second grid holes into a plurality of through holes or separate the second grid holes through the auxiliary grid lines (or in other words, the auxiliary grid lines are arranged between the second grid holes, the through holes can also be called as second grid holes), and the auxiliary grid lines are perpendicular to the second screen grid lines or form an included angle which is different from 90 degrees with the second screen grid lines; wherein, the auxiliary grid line is provided with a plurality of meshes, and at least one mesh is communicated with the first grid hole; the mesh shape of the auxiliary grid line can be round, rectangular, square, hexagonal and the like;
at least one first grid hole is internally provided with a first auxiliary grid line, namely the first auxiliary grid line is positioned between the adjacent first grid lines, the adjacent first grid holes are separated by the first auxiliary grid line, and the first auxiliary grid line is perpendicular to the first grid lines or forms an included angle which is not equal to 90 degrees with the first grid lines; the first auxiliary grid line and the auxiliary grid line are overlapped, namely, the projection of the first auxiliary grid line on the auxiliary grid line is overlapped with the auxiliary grid line or is positioned in the auxiliary grid line area; of course, the first auxiliary gate lines may be randomly disposed in the first gate holes, and may not be used in the auxiliary gate line region; the first grid holes which can be arranged in the first screen plate structure are provided with first auxiliary grid lines, and the first grid holes which are provided with the first auxiliary grid lines and the first grid holes which are not provided with the first auxiliary grid lines can be arranged at intervals or can be arranged randomly, wherein the interval arrangement means that one first grid hole is provided with the first auxiliary grid lines, the first grid holes adjacent to the first grid hole are not provided with the first auxiliary grid lines, or the two first grid holes adjacent to the first grid hole are not provided with the first auxiliary grid lines;
at least one first screen grid line and one second screen grid line which are overlapped are arranged, a first neutral line is arranged at the middle position of the first screen grid line, the first neutral line extends along the length direction of the first screen grid line, a second neutral line is arranged at the middle position of the second screen grid line, the second neutral line extends along the length direction of the second screen grid line, and the distance between projections formed by the first neutral line and the second neutral line in the same plane is not more than 20 micrometers; because the first screen grid line and the second screen grid line are overlapped, when the first screen grid line and the second screen grid line are formed by different processes, a certain alignment difference exists between the first screen grid line and the second screen grid line, and different widths of the second grid holes can be caused, so that the deviation between the first screen grid line and the second screen grid line cannot exceed 20 micrometers, for example, the deviation is 15 micrometers, 10 micrometers, 8 micrometers, 5 micrometers, 3 micrometers and the like, the difference of leakage when the conductive material is printed is larger due to the too large deviation, the ideal situation is that no deviation exists, and the widths of any two second grid holes are the same.
The first screen structure may have a single-layer structure or a multi-layer structure, the second screen structure may have a single-layer structure or a multi-layer structure, and the second screen structure has at least two areas with different lamination numbers, for example, one area has a three-layer structure, and the second screen structure has another area has a two-layer structure; the auxiliary grid line can be of a single-layer structure or a multi-layer structure; the above-described multilayer is of at least two-layer structure.
Examples
Referring to fig. 1, a metal screen of a first embodiment of the present utility model includes a first screen structure, a second screen structure and a grid hole 30, where the first screen structure includes a plurality of first screen grid lines 10, and a plurality of first screen grid lines 10 are arranged in parallel to form a first screen structure, the second screen structure includes a plurality of second screen grid lines 20, and a plurality of second screen grid lines 20 are arranged in parallel to form a second screen structure; the grid holes 30 include first grid holes and second grid holes, the first grid holes are located between adjacent first screen grid lines 10, and the second grid holes are located between adjacent second screen grid lines 20; an auxiliary grid line 40 is further arranged between the second screen grid lines 20, a plurality of meshes are arranged on the auxiliary grid line 40, and at least one mesh is communicated with the first grid holes; the mesh shape of the auxiliary grid line can be round, rectangular, square, hexagonal and the like; it can be seen from fig. 1 that the second gate hole is rectangular in shape, and that the first gate hole is also rectangular or rounded rectangular, and that the first gate hole is disposed in communication with the second gate hole. The second screen structure is provided with a working surface on one side far away from the first screen structure, the working surface can be used for placing paste to be printed, the paste falls onto a substrate to be printed from the second grid holes and the first grid holes through operation of a scraper, an electrode circuit is formed through solidification, and the solidification mode can be baking, natural evaporation, sintering and the like.
Referring to fig. 2 and 3, a perspective view of a partial area of a metal screen includes a first screen grid line 10, a second screen grid line 20, a grid hole 30 and an auxiliary grid line 40, the grid hole 30 includes a first grid hole and a second grid hole, the second grid hole is separated by the auxiliary grid line 40, a plurality of meshes are disposed on the auxiliary grid line 40, and a connection grid hole 31 is disposed at a position corresponding to the first grid hole and the auxiliary grid line 40, i.e., the first grid hole is in a non-blocking state, so that the meshes on the auxiliary grid line 40 are connected with the connection grid hole 31, i.e., are connected with the first grid hole. In one of the structures, the first gate hole corresponds to the auxiliary gate line 40 and is an extended gate hole 32, so that the mesh hole on the auxiliary gate line 40 is communicated with the extended gate hole 32, that is, is communicated with the first gate hole, and the difference between fig. 3 and fig. 2 is that the first gate hole which is not formed by the extended gate hole 32 in fig. 3 is in a state of no blocking, and in contrast to the tangential cutting, a first auxiliary gate line is further arranged in the first gate hole in fig. 3, and the first gate hole is divided into a plurality of segments, and the auxiliary gate line 40 at least covers part of the extended gate hole 32. The width of the communication holes 31 and the extension holes 32 shown in fig. 2 and 3 is the same as the width of the first holes.
Specifically, the auxiliary grid line 40 is provided with a mesh, and the mesh is communicated with the first grid hole (or the communicated grid hole 31 and the extended grid hole 32), so that the auxiliary grid line 40 can ensure the toughness of the screen and enable the paste to be printed to fall from the mesh on the auxiliary grid line 40 to the substrate to be printed when the screen is printed.
Referring to fig. 4 and fig. 5, the planar structure of the first gate holes includes extended gate holes 33 in the first gate holes, the width of the extended gate holes 33 is larger than the width of the first gate holes, and the extended gate holes 33 do not allow the first gate holes to be penetrated, which is equivalent to the first auxiliary gate lines arranged between the first gate holes; the width of the communication holes 34 is larger than the width of the first holes, so that the first holes are communicated; the width of the extending gate holes 33 and the communicating gate holes 34 is larger than that of the first gate holes, so that the width of the printed lines is larger than that of the lines formed at the first gate holes in the substrate region to be printed corresponding to the auxiliary gate lines 40 during printing.
Referring to fig. 6, a metal screen includes a first screen grid line 10, a second screen grid line 20 and a grid hole 30, where the first screen grid line 10 and the second screen grid line 20 are stacked, the grid hole 30 includes a first grid hole and a second grid hole, the first grid hole is formed between adjacent first screen grid lines 10, and the second grid hole is formed between the second screen grid lines 20.
Specifically, the width of the second halftone gate line 20 is not greater than the width of the first halftone gate line 10, and further, the width of the second halftone gate line 20 is smaller than the width of the first halftone gate line 10; further, the distances between adjacent first gate holes may be equal or different, or at least one group of adjacent first gate holes may be different; the reason why the distances between the adjacent second grid holes are not equal may be that the widths of the first grid lines 10 are different, or the widths of the first grid holes are different, or the widths of the first grid lines 10 are different and the widths of the first grid holes are also different.
Specifically, the first screen structure may be a soft film material such as PI, PU, PE, TPE, PET, PVC, PMMA, or may be made of a Ni material, or may be made of a Ni-Co alloy material, or may be made of one or more of Cu, ni-P, ni-Fe, ni-Co-Cu, ni-Cr, and Cr-Cu; the second screen plate structure is made of a Ni material or a Ni-Co alloy material or one or more of Cu, ni-P, ni-Fe, ni-Co-Cu, ni-Cr, cr and Cr-Cu; thus, the first screen structure and the second screen structure are made of different materials and can be combined into different screens.
Specifically, the outer surface of the first screen grid line 10 and the outer surface of the second screen grid line 20 may be provided with waterproof fingerprint-resistant coatings such as Si, F, AF, parylene, etc., the thickness of the coatings is not greater than 1 micron, and the water contact angle of the coatings is between 70 ° and 170 °; the plating layer may be formed on the outer surface by evaporation, sputtering, or the like.
In another metal screen structure of the first embodiment, the first screen grid line 10 and the second screen grid line 20 are stacked, where the first screen grid line 10 includes a first center line X, the second screen grid line 20 includes a second center line Y, both the first center line X and the second center line Y extend along the length direction of the first screen grid line 10 and the second screen grid line 20, as can be seen in fig. 3, there is a misalignment between the first center line X and the second center line Y, such that when the second center line Y is projected on the surface of the first screen structure, there is a distance between the projections of the first center line X and the second center line Y that is not greater than 20 microns, and of course, the distance may be smaller, for example, 15 microns, 10 microns, 8 microns, 5 microns, and 3 microns, and further, the distance is 0, that is, the absolute alignment between the first screen grid line 10 and the second screen grid line 20.
Specifically, the cross section of the first gate hole is rectangular, the cross section of the second gate hole is also rectangular, the side wall of the first screen grid line 10 forming the first gate hole is in a steep shape, and the side wall of the second screen grid line 20 forming the second gate hole is also in a steep shape; of course, the first gate hole and the second gate hole are respectively provided with two side walls, and the two side walls can be steep, at least one side wall can be steep, or one side wall has a certain radian.
Specifically, the first grid holes formed by the first screen grid lines 10 are trapezoid-shaped and inverted trapezoid-shaped, that is, the width of one end of the first grid holes, which is close to the second grid holes, is larger than the width of one end of the first grid holes, which is far away from the second grid holes; the first grid holes formed by the first screen grid lines 10 are trapezoid, i.e. the width of one end of each first grid hole, which is close to the second grid hole, is smaller than that of one end, which is far away from the second grid hole.
Another screen structure, a metal screen, comprises a first screen grid line 10 and a second screen grid line 20; a third screen grid line is further arranged between the first screen grid line 10 and the second screen grid line 20, a second grid hole is formed between the second screen grid line 20 and the third screen grid line, and a plurality of third screen grid lines form a third screen structure; the width of the third screen grid line is equal to the width of the second screen grid line 20, or the width of the third screen grid line is greater than the width of the second screen grid line 20 and smaller than the width of the first screen grid line 10, or the width of the third screen grid line and the width of the first screen grid line 10.
Specifically, the third screen plate structure or the third screen plate grid line is made of Ni material, or is made of Ni-Co alloy material, or is made of one or more of Cu, ni-P, ni-Fe, ni-Co-Cu, ni-Cr, cr and Cr-Cu.
The other metal screen plate is provided with a four-layer structure, one side of the first screen plate grid line 10, which is far away from the second screen plate grid line, is provided with a fourth screen plate grid line, a plurality of fourth screen plate grid lines are arranged to form a fourth screen plate structure, a first grid hole is formed between the first screen plate grid line 10 and the fourth screen plate grid line, and the width of the fourth screen plate grid line is equal to that of the first screen plate grid line, or the width of the fourth screen plate grid line is larger than that of the first screen plate grid line.
Specifically, the fourth screen structure or the fourth screen grid line is made of a Ni material, or is formed by a Ni-Co alloy material, or is made of one or more of Cu, ni-P, ni-Fe, ni-Co-Cu, ni-Cr, cr and Cr-Cu, or is made of a PI, PU, PE, TPE, PET, PVC, PMMA soft film material.
Specifically, the metal screen plate can also have a 5-layer structure or more-layer structure, and different hierarchical structures can be set according to different scenes; the layers are tightly combined, and each layer can be prepared by electroplating, vapor plating, laminating and the like. The grid holes can be formed by surrounding the electroplating grid lines, and can also be formed by a laser mode.
Referring to fig. 7 and 8, a metal screen includes a first screen grid line 10, a second screen grid line 20, and an auxiliary grid line 40, where the first screen grid line 10 and the second screen grid line 20 are stacked; when the first grid holes are communicated with each other, an auxiliary grid line 40 is arranged between the adjacent second grid lines 20, and the auxiliary grid line 40 and the second grid lines 20 can be of an integral structure and can be connected with the adjacent second grid lines 20 in other modes, so that the auxiliary grid line 40 and the second grid lines 20 are positioned on the same plane; the material constituting the auxiliary grid line 40 may be the same as that of the second screen grid line 20; the auxiliary wire grid is made of Ni material, or Ni-Co alloy material, or one or more of Cu, ni-P, ni-Fe, ni-Co-Cu, ni-Cr, cr and Cr-Cu. When the extending gate holes are formed between the first gate holes, that is, a first auxiliary gate line 41 is disposed between the adjacent first screen gate lines 10, the first auxiliary gate line 41 may be integrally formed with the first screen gate lines 10, or may be connected with the adjacent first screen gate lines 10 in other manners, so that the first auxiliary gate line 41 and the first screen gate lines 10 are located on the same plane; the material constituting the first auxiliary gate line 41 may be the same as that of the first screen gate line 10; the first auxiliary wire grid is made of a Ni material, or a Ni-Co alloy material, or one or more of Cu, ni-P, ni-Fe, ni-Co-Cu, ni-Cr, cr and Cr-Cu.
Specifically, the widths of the auxiliary gate lines 40 may be the same or different; or at least two auxiliary grid lines 40 are different in width in the screen plate; the spacing between adjacent auxiliary gate lines 40 may be the same, may be different, or at least there may be a set of the same spacing distances. The thickness of the auxiliary grid line 40 is equal to the thickness of the second screen grid line 20, or the thickness of the auxiliary line 40 is smaller than the thickness of the second screen grid line 20, and further, the thickness of the auxiliary line 40 is not smaller than half the thickness of the second screen grid line 20; of course, the first auxiliary gate line 41 may be disposed similar to or the same as the auxiliary gate line 40.
Referring to fig. 9, a metal screen comprises a first screen grid line 10, a second screen grid line 20 and a grid hole 30, wherein the first screen grid line 10 comprises a first surface and a second surface which is oppositely arranged, the grid hole 30 comprises a first grid hole and a second grid hole, the first grid hole is positioned between adjacent first screen grid lines 10, the first surface of the first screen grid line 10 is provided with a first auxiliary layer 21, the first auxiliary layer 21 is arranged in the edge area of the first surface of the first screen grid line 10, the second auxiliary layer 22 is positioned on one side of the first surface of the first screen grid line 10, the second auxiliary layer 22 covers the first auxiliary layer 21 and the first surface of the first screen grid line 10, the second screen grid line 20 is arranged on one side of the second auxiliary layer 22 which is far away from the first screen grid line 10, thus, the overlapping effect of the first screen grid line 20 can occur in different areas, and the overlapping areas of the first screen grid line 20 can occur; the first auxiliary layer 21 and the second auxiliary layer 22 may have a certain conductive property, and the first auxiliary layer 21 and the second auxiliary layer 22 may enhance connectivity between the second halftone gate line 20 and the first halftone gate line 10.
Referring to fig. 10, a perspective view of a metal screen partial area includes a first screen grid line 10, a second screen grid line 20, a grid hole 30 and an auxiliary grid line 42, the grid hole 30 includes a first grid hole and a second grid hole, the second grid hole is separated by the auxiliary grid line 42, a plurality of meshes are disposed on the auxiliary grid line 42, the first grid hole corresponds to the auxiliary grid line 42 and is a communication grid hole 31, that is, the first grid hole is in a state of no blocking, so that the meshes on the auxiliary grid line 42 are communicated with the communication grid hole 31, that is, are communicated with the first grid hole, the meshes on the auxiliary grid line 42 are circular meshes, and the circular meshes are only located in the area of the communication grid hole 31. That is, the mesh holes on the auxiliary grid line can be only arranged in the area of the communication grid holes or the extending grid holes, or can be arranged in the whole area of the auxiliary grid line, namely, partial mesh holes or mesh hole parts are not positioned in the area of the communication grid holes or the extending grid holes.
The metal screen plate of the embodiment has at least the following beneficial effects:
1) The first grid holes and the second grid holes with different widths are formed through superposition of the first grid lines and the second grid lines, so that the electrode prepared by the sizing agent printed by the grid holes is more uniform and controllable, and the conductivity is more excellent;
2) The first grid holes and the second grid holes with different widths are formed through superposition of the first grid lines and the second grid lines, so that junctions which are mutually superposed do not exist, and the shape of the electrode is not influenced;
3) The first screen structure and the second screen structure are simpler in preparation process, the yield of the screen can be improved, and the process cost is reduced;
4) And an auxiliary grid line is arranged between the adjacent first grid lines and/or the adjacent second grid lines, so that the metal screen has strong toughness and is firmer.
5) The auxiliary grid lines are provided with the mesh holes, so that the material to be printed can fall onto the substrate to be printed through the mesh holes, and the performance of the substrate to be printed can be improved.
Examples
Referring to fig. 11, a metal screen of a second embodiment of the present utility model includes a first screen grid line 10, a second screen grid line 20, an auxiliary grid line 40 and a second grid hole 30, wherein a plurality of first screen grid lines 10 are arranged in parallel to form a first screen structure, a plurality of second screen grid lines 20 are arranged in parallel to form a second screen structure, and the grid hole 30 includes a first grid hole and a second grid hole; it can be seen from fig. 11 that the second gate hole has a rectangular shape, and it can also be seen that the first gate hole is also rectangular or rounded rectangular, and the first gate hole is disposed in communication with the second gate hole. The second screen structure is provided with a working surface on one side far away from the first screen structure, the working surface can be used for placing paste to be printed, the paste falls onto a substrate to be printed from the second grid holes and the first grid holes through operation of a scraper, an electrode circuit is formed through solidification, and the solidification mode can be baking, natural evaporation, sintering and the like. As can be seen from fig. 11, the auxiliary grid line 40 is connected to the adjacent second halftone grid line 20, and the auxiliary grid line 40 may be integrally formed with the second halftone grid line 20, or may be connected to the adjacent second halftone grid line 20 in other manners, so that the auxiliary grid line 40 and the second halftone grid line 20 are located in the same plane; the auxiliary grid line 40 is provided with a plurality of meshes; the edge of the metal screen plate is provided with a buffer structure 50, the buffer structure 50 is a hexagonal hole, the hexagonal hole is arranged at the edge of the metal screen plate in a mode of being parallel to the grid holes 30, and the hexagonal hole can be one row or multiple rows; of course, the buffer structure 50 may be a circular hole, a diamond hole, a square hole, etc.
Referring to fig. 12, in the metal screen according to the second embodiment of the present utility model, a buffer structure 51 is provided at an edge of the metal screen, the buffer structure 51 is a bar-shaped hole, the bar-shaped hole is parallel to the gate hole 30, and the length of the bar-shaped hole becomes shorter as the length of the bar-shaped hole is far away from the gate hole 30, and the length of the bar-shaped hole may be gradually changed or irregularly changed.
Referring to fig. 13, 14 and 15, in the second embodiment of the present utility model, a buffer structure 52 is disposed at an edge of the metal screen, the buffer structure 52 is a plurality of groups of strip-shaped line segment holes parallel to the gate holes, and each group of strip-shaped line segment holes is also disposed along with the length change away from the gate holes 30; in another structure, a buffer structure 53 is arranged at the edge of the metal screen plate, and the buffer structure 53 is formed by a plurality of strip-shaped holes perpendicular to the direction of the grid holes; in another structure, the metal screen edge is provided with a buffer structure 54, and the buffer structure 54 may be a combination of a strip-shaped hole parallel to the grid line 30 and a strip-shaped hole perpendicular to the grid line 30.
The metal screen plate of the embodiment has at least the following beneficial effects:
1) The buffer structure is arranged at the edge of the metal screen plate, so that the flatness of the edge of the screen plate can be ensured in the process of using the screen plate, and no warping can be generated.
Examples
The metal screen of the third embodiment of the present utility model comprises a first screen grid line 10, a second screen grid line 20, an auxiliary grid line 40 and a grid hole 30, wherein a plurality of first screen grid lines 10 are arranged in parallel to form a first screen structure, and a plurality of second screen grid lines 20 are arranged in parallel to form a second screen structure; the gate hole 30 has a rectangular shape. The side, far away from the first screen plate structure, of the second screen plate structure is a working surface, and the working surface can be used for placing paste to be printed and is operated by a scraper. The auxiliary grid line 40 is connected to the adjacent second screen grid line 20, and the auxiliary grid line 40 may be integrally formed with the second screen grid line 20, or may be connected to the adjacent second screen grid line 20 in other manners. Further, the auxiliary grid lines 40 are disposed between the second screen grid lines 20 at random, so that the auxiliary lines 40 between different second screen grid lines 20 are not aligned or at least two of the auxiliary lines 40 are not aligned.
Examples
The metal screen of the fourth embodiment of the present utility model comprises a first screen grid line 10, a second screen grid line 20 and a grid hole 30, wherein a plurality of first screen grid lines 10 are arranged in parallel to form a first screen structure, and a plurality of second screen grid lines 20 are arranged in parallel to form a second screen structure; the first grid holes are in shapes formed by setting the width to be changed. The side, far away from the first screen plate structure, of the second screen plate structure is a working surface, and the working surface can be used for placing paste to be printed and is operated by a scraper.
Specifically, the shape of the first gate hole may be not rectangular, but may be a mode of setting that one end of the first gate hole is large and the other end of the first gate hole is small, and the width of the first gate hole may be changed gradually; the second gate hole may be formed in the same shape as the first gate hole.
Examples
Based on the first embodiment, the metal screen includes a first screen grid line 10 and a second screen grid line 20; the first screen grid lines 10 and the second screen grid lines 20 are overlapped, or the second screen grid lines 20 are positioned on one side of the first screen grid lines 10, the first grid holes are formed between adjacent first screen grid lines 10, the second grid holes are formed between adjacent second screen grid lines 20, and the second grid holes are communicated with the first grid holes; and the second grid holes and the first grid holes can be overlapped. The first screen grid line 10 has a microstructure on a side far away from the second screen grid line 20, so that the outer surface of the first screen grid line 10 has a certain roughness, the height of the microstructure is not greater than 1 micrometer, or in other words, the roughness of the outer surface of the first screen grid line 10 is not greater than 1 micrometer, further, the microstructure or the roughness is not greater than 500 nanometers, further, the microstructure or the roughness is not greater than 200 nanometers, or the microstructure or the roughness is not greater than 100 nanometers.
Specifically, the first screen grid line 10 and the second screen grid line 20 are overlapped, so that the surface of the formed overlapped body may be a mirror surface, or may have a certain roughness or a microstructure, that is, the outer surface of the second screen grid line 20 has a roughness or a microstructure, and further, the side walls of the first screen grid line 10 and the second screen grid line 20 also have a certain roughness or a microstructure; further, the roughness or microstructure height is no greater than 1 micron, or may be smaller, e.g., 500 nanometers, 200 nanometers, 100 nanometers.
The first screen grid lines 10 and the second screen grid lines 20 are overlapped, the first grid holes are formed between the adjacent first screen grid lines 10, the second grid holes are formed between the adjacent second screen grid lines 20, and the second grid holes are communicated with the first grid holes; because the width of the second screen grid line 20 is smaller than that of the first screen grid line 10, a step is formed between the first screen grid line 10 and the second screen grid line 20, a step layer is arranged on the step, and the step layer can be integrated with the second screen grid line 20 or can be in a single layer structure, or can extend to a position between the first screen grid line 10 and the second screen grid line 20, so that the step layer can play a certain role in protecting the first screen grid line 10.
Specifically, the step layer is made of one or more of Cu, ni-P, ni-Fe, ni-Co-Cu, ni-Cr, cr and Cr-Cu, and the thickness of the step layer is smaller than that of the second screen grid line 20.
Specifically, the width of the first grid hole is D1, the width of the second grid hole is D2, wherein D1 is more than D2, and D1 is more than 0 and less than or equal to 100 micrometers; the thickness of the first screen grating 10 is H1, the thickness of the second screen grating 20 is H2, wherein H1 is more than 0 and less than or equal to 40 micrometers, further, H1 is more than 5 micrometers, 8 micrometers, 10 micrometers, 15 micrometers, 25 micrometers, 30 micrometers, etc., H2 is more than 0 and less than or equal to 80 micrometers, further, H2 is more than 10 micrometers, 15 micrometers, 20 micrometers, 21 micrometers, 25 micrometers, 40 micrometers, 50 micrometers, 65 micrometers, etc.
Specifically, the thickness of the third screen grid line is not greater than 5 micrometers, further, the thickness is 20 nanometers, 30 nanometers, 40 nanometers, 100 nanometers, 200 nanometers, 500 nanometers, etc., the thickness of the fourth screen grid line is not greater than 30 micrometers, further, the thickness is 1 micrometer, 3 micrometers, 5 micrometers, 7 micrometers, 10 micrometers, 20 micrometers, etc.
Specifically, the widths of the auxiliary gate lines in the embodiment may be equal or different; further, the distances between the auxiliary grid lines in the same grid hole can be equal or unequal, and the distance between the adjacent auxiliary grid lines is larger than the width of the auxiliary grid lines.
In summary, the technical schemes and technical features in the five embodiments may be used interchangeably, for example, the roughness of the outer surfaces of the first halftone gate line and the second halftone gate line in the sixth embodiment is also applicable to other embodiments; the three-layer screen grid line and the four-layer screen grid line in the first embodiment can be also applied to other embodiments; the parameters in the sixth embodiment are equally applicable to other embodiments; the shapes of the gate holes in the embodiments are equally applicable to other embodiments, and are not described here.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (10)
1. A metal screen, comprising:
the first screen structure comprises a plurality of first screen grid lines, and the first screen structure is formed by metal;
the second screen structure comprises a plurality of second screen grid lines, and the second screen structure is formed by metal;
the second screen grid lines are arranged on one side of the surface of the first screen grid lines, first grid holes are formed between the adjacent first screen grid lines, second grid holes are formed between the adjacent second screen grid lines, and the first grid holes are communicated with the second grid holes;
the buffer structure is arranged at least at one edge of the metal screen plate and is parallel to the first grid holes.
2. A metal screen as recited in claim 1, wherein said buffer structure is arranged in a single row parallel or approximately parallel to said first grid holes; or the buffer structures are arranged in a plurality of rows parallel or approximately parallel to the first gate holes.
3. A metal screen as claimed in claim 1 or claim 2, wherein auxiliary grid lines are provided between adjacent second screen grid lines; and communication grid holes are further formed between the adjacent first screen grid lines, the communication grid holes are correspondingly arranged with the auxiliary grid lines, and the first grid holes are communicated through the communication grid holes.
4. A metal screen as claimed in claim 3, wherein extending grid holes are further provided between adjacent ones of the first screen grid lines, the extending grid holes being provided in correspondence with the auxiliary grid lines.
5. A metal screen as recited in claim 3, wherein the width of said communication apertures is the same as the width of said first apertures; or the width of the communicating grid holes is larger than that of the first grid holes.
6. A metal screen as recited in claim 4, wherein the width of said extended holes is the same as the width of said first holes; or the width of the extended gate hole is greater than the width of the first gate hole.
7. A metal screen as claimed in claim 3, wherein a first auxiliary layer is provided on a side of the first screen grid line adjacent to the second screen grid line, and the first auxiliary layer is provided on an edge region of the surface of the first screen grid line; the second auxiliary layer is arranged on one side, far away from the second screen grating line, of the first screen grating line, the second auxiliary layer covers the first auxiliary layer and the surface of the first screen grating line, and the second screen grating line is arranged on one side, far away from the first screen grating line, of the second auxiliary layer.
8. A metal screen as recited in claim 7, wherein the first auxiliary layer overlaps or is spaced from the projection of the second screen grid line onto the surface of the first screen grid line.
9. A metal screen as recited in claim 4, further comprising first auxiliary grid lines disposed between adjacent ones of said first screen grid lines and opposite said auxiliary grid lines.
10. A metal screen as in claim 2, wherein the buffer structure is one or a combination of two or more of hexagonal holes, diamond holes, square holes, circular holes or bar holes.
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| CN202211511030X | 2022-11-29 | ||
| CN202211511030 | 2022-11-29 |
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| CN219686826U true CN219686826U (en) | 2023-09-15 |
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| CN202310196592.8A Pending CN116061548A (en) | 2022-11-29 | 2023-02-28 | Composite screen printing plate |
| CN202320502819.2U Active CN219686826U (en) | 2022-11-29 | 2023-03-15 | Metal screen plate |
| CN202320580562.2U Active CN219667713U (en) | 2022-11-29 | 2023-03-20 | Metal composite screen plate |
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| CN202310196592.8A Pending CN116061548A (en) | 2022-11-29 | 2023-02-28 | Composite screen printing plate |
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| CN202320580562.2U Active CN219667713U (en) | 2022-11-29 | 2023-03-20 | Metal composite screen plate |
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| CN116061548A (en) * | 2022-11-29 | 2023-05-05 | 徐州智兴电子科技有限公司 | Composite screen printing plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2009169366A (en) * | 2008-01-21 | 2009-07-30 | Nec Electronics Corp | Reticle, layout method of wire and via, and method for manufacturing semiconductor device |
| JP2010010546A (en) * | 2008-06-30 | 2010-01-14 | Kyocera Corp | Method of manufacturing substrate with electrode, method of manufacturing solar battery element and screen printing device |
| CN202528561U (en) * | 2011-12-23 | 2012-11-14 | 昆山允升吉光电科技有限公司 | EElectrode printing screen of solar cell with auxiliary grid line |
| CN202716537U (en) * | 2012-05-25 | 2013-02-06 | 嘉兴优太太阳能有限公司 | Printing template for electrode pattern of solar cell sheet |
| CN105514183B (en) * | 2015-11-30 | 2017-10-17 | 黄河水电光伏产业技术有限公司 | A kind of preparation method of crystal silicon solar batteries front electrode |
| CN210911628U (en) * | 2019-08-30 | 2020-07-03 | 苏州阿特斯阳光电力科技有限公司 | Solar cell printing screen |
| CN210805806U (en) * | 2019-09-26 | 2020-06-19 | 通威太阳能(眉山)有限公司 | High-reliability multi-main-grid single crystal high-efficiency battery printing screen |
| KR102266951B1 (en) * | 2019-10-29 | 2021-06-18 | 엘지전자 주식회사 | Solar cell module |
| CN110707161A (en) * | 2019-11-20 | 2020-01-17 | 通威太阳能(眉山)有限公司 | Screen printing plate structure of monocrystalline silicon solar cell |
| CN211428180U (en) * | 2019-12-30 | 2020-09-04 | 东莞南玻光伏科技有限公司 | Solar cell grid line printing screen and solar cell |
| CN111625141B (en) * | 2020-05-25 | 2022-05-10 | 业成科技（成都）有限公司 | Touch panel and electronic equipment |
| CN214395877U (en) * | 2020-10-21 | 2021-10-15 | 浙江爱旭太阳能科技有限公司 | Printing system for screen printing of SE (Selective emitter) laminated cell |
| CN214821750U (en) * | 2021-03-16 | 2021-11-23 | 东方日升（常州）新能源有限公司 | Matched printing screen and solar cell |
| CN215826191U (en) * | 2021-06-30 | 2022-02-15 | 无锡尚德太阳能电力有限公司 | Pattern nesting structure for screen separation printing plate |
| CN116061548A (en) * | 2022-11-29 | 2023-05-05 | 徐州智兴电子科技有限公司 | Composite screen printing plate |
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| CN116061548A (en) | 2023-05-05 |
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Effective date of registration: 20231027 Address after: Building 10, No. 200 Xuqiao Road, Yuanhua Town, Haining City, Jiaxing City, Zhejiang Province, 314400 Patentee after: Zhejiang Weizhu Technology Co.,Ltd. Address before: 014010 Collective teaching and working household of Inner Mongolia University of Science and Technology, Ardin Street, Hondlon District, Baotou, Inner Mongolia Patentee before: Yang Lilin |
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