CN201856441U - Screen plate used for printing silicon solar battery electrode - Google Patents
Screen plate used for printing silicon solar battery electrode Download PDFInfo
- Publication number
- CN201856441U CN201856441U CN2010205769703U CN201020576970U CN201856441U CN 201856441 U CN201856441 U CN 201856441U CN 2010205769703 U CN2010205769703 U CN 2010205769703U CN 201020576970 U CN201020576970 U CN 201020576970U CN 201856441 U CN201856441 U CN 201856441U
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- Prior art keywords
- mesh
- spacing
- array group
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N1/00—Printing plates or foils; Materials therefor
- B41N1/24—Stencils; Stencil materials; Carriers therefor
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- Printing Plates And Materials Therefor (AREA)
- Photovoltaic Devices (AREA)
Abstract
The utility model discloses a screen plate used for printing a silicon solar battery electrode. A stainless steel sheet is used as a silk screen plate, a plurality of horizontal mesh array groups and longitudinal mesh array groups are carved on the stainless steel sheet, the horizontal mesh array groups comprise a plurality of rows of meshes consisting of a plurality of square meshes horizontally arranged side by side, and the longitudinal mesh array groups comprise a plurality of columns of meshes consisting of a plurality of square meshes longitudinally arranged side by side. When the mesh plate with the structure is used for printing electrode grid lines at the front side, silver paste is poured on a printing area of the stainless steel sheet, a printing scraper is used for scraping the silver paste back and forth to make the silver paste leak onto a silicon wafer through each square mesh, and because the meshes are square, the sizes of silver paste piles leaking onto the silicon wafer are basically consistent, the widths of the grid lines formed after the silver paste piles are intersected are uniform, the printing precision is improved, free electrons generated by a silicon solar battery can complete pass, and the conversion efficiency of the silicon solar battery is effectively improved.
Description
Technical field
The utility model relates to a kind of screen printing technique of area of solar cell, especially relates to a kind of web plate that is used to print silicon solar battery electrode.
Background technology
Current, along with the continuous development of silicon solar cell technologies, industry has proposed higher specification requirement to aspects such as silicon solar cell transformation efficiency and silicon solar cell costs.
The manufacturing of silicon solar cell mainly comprises following nine steps: 1, silicon chip cleans; 2, surface structuration; 3, diffusion; 4, trimming knot; 5, coated with antireflection film; 6, printing front electrode; 7, printed back electrode; 8, sintering; 9, test is finished; Wherein these 4 steps of the printing of surface structuration, diffusion, coated with antireflection film and electrode are particularly important to the influence of solar battery efficiency.The gate electrode line of silicon solar cell is in order to compile the free electron that silicon solar cell produces.The gate electrode line of silicon solar cell normally adopts electrocondution slurries such as screen printing technique printed silver, forms gate electrode line through oven dry and sintering then.The normal at present serigraphy web plate that uses is shown in Fig. 2 a, it generally includes metal framework 21 and the silk screen plate 22 that is arranged in the metal framework 21, silk screen plate 22 is intersected by many polyester silks or stainless steel wire tightly to be made on metal framework 21, on the silk screen plate 22 according to the front shape of the silicon chip of desiring to print electrode, scribble the PVA(polyvinyl alcohol not needing to print the electrode place) film 23, purpose is to allow electrocondution slurries such as silver enter on the silicon chip by the mesh on the silk screen plate 22 24, scraper scrapes silver slurry the silver slurry is drained on the silicon chip 81 by the mesh on the silk screen plate 22 24 during printing, but because the mesh 24 of this silk screen plate 22 is the prismatic shape, make the silver slurry of part prismatic mesh 24 edges be difficult to by (shown in Fig. 2 b), therefore there is the phenomenon that causes not of uniform size (shown in Fig. 2 c and Fig. 2 d) in the silver slurry heap 26 that drains on the silicon chip 81, thereby grid line 82(that the back forms comprise main grid line and thin grid line will to cause silver slurry heap 26 to cross) width inhomogeneous (even may cause disconnected grid phenomenon) (shown in Fig. 2 e), the free electron that silicon solar cell produced is the trafficability characteristic at narrower grid line place relatively poor (even can't pass through) like this, thereby will reduce the transformation efficiency of silicon solar cell, therefore, how to improve the accuracy reliability that screen printing technique improves the electrode of solar battery grid line, thereby the transformation efficiency that improves solar cell is vital.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of web plate that is used to print silicon solar battery electrode, the width of the grid line that its printing obtains is even, can effectively reduce phenomenons such as grid line fracture, grid line breach occur, thereby improve the transformation efficiency of silicon solar cell.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of web plate that is used to print silicon solar battery electrode, comprise metal framework, it is characterized in that being provided with in the described metal framework Stainless Steel sheet, described Stainless Steel sheet is provided with a corresponding Printing Zone of the silicon chip with electrode to be printed, laterally carve in the described Printing Zone and be provided with the horizontal mesh array group of many groups, spacing between the described horizontal mesh array group is identical, vertically carve in the described Printing Zone and be provided with some groups of vertical mesh array group, every group of described vertical mesh array group with organize described horizontal mesh array group and have the intersection region, described horizontal mesh array group comprises that the multirow mesh is capable, spacing between described mesh is capable is identical, described mesh is capable mainly to be made up of the equidistantly horizontal parallel arranged of a plurality of square mesh, described vertical mesh array group comprises multiple row mesh row, spacing between the described mesh row is identical, described mesh row main by a plurality of and described mesh the equidistantly vertical parallel arranged of described square mesh square mesh of the same size in capable form, spacing between the described square mesh in spacing between described mesh is capable and the described mesh row is identical, and the spacing between the described square mesh during described mesh is capable is identical with spacing between described mesh is listed as.
Spacing between described mesh is capable is identical with spacing between the described mesh row.
Carve in the described Printing Zone and be provided with 52 groups of described horizontal mesh array group and 2 groups of described vertical mesh array group, the width of described horizontal mesh array group is that capable width of all the described mesh in the described horizontal mesh array group and the described mesh spacing sum between capable equals 50 μ m, and the length of described horizontal mesh array group is that the spacing sum between the length of side of all described square mesh of described mesh in capable and the described mesh described square mesh in capable equals 120 * 10
3μ m, the width of described vertical mesh array group are that the width of all the described mesh row in described vertical mesh array group and the spacing sum between the described mesh row equal 1990 μ m.
/ 4th intersection fork that the 1st group of described vertical mesh array group and each capable described mesh are capable, 3/4ths intersection fork that the 2nd group of described vertical mesh array group and each capable described mesh are capable.
Spacing between the described square mesh during spacing, described mesh between spacing between the length of side of described square mesh, described mesh are capable, the described mesh row is capable, the spacing between the square mesh described in the described mesh row are 8～12 μ m.
Spacing between the described square mesh during spacing, described mesh between spacing between the length of side of described square mesh, described mesh are capable, the described mesh row is capable, the spacing between the square mesh described in the described mesh row are 10 μ m.
Described Printing Zone is arranged at the center of described Stainless Steel sheet.
Compared with prior art, advantage of the present utility model is by adopting the Stainless Steel sheet as silk screen plate, and on the Stainless Steel sheet, carve and establish many horizontal mesh array group of group and vertical mesh array group, and laterally the mesh array group comprises that the mesh that multirow is made up of the horizontal parallel arranged of a plurality of square mesh is capable, vertically the mesh array group comprises the mesh row that multiple row is made up of the vertical parallel arranged of a plurality of square mesh, the web plate of this structure is when printing electrode grid line, the silver slurry is poured on the Printing Zone of Stainless Steel sheet, printing scrapes the silver slurry with scraper makes the silver slurry drain on the silicon chip by each square mesh, because mesh all is square, therefore drain to the big or small basically identical of silver slurry heap on the silicon chip, the width uniformity of the grid line that forms after making silver slurry heap cross, thereby make the free electron that silicon solar cell produced better to pass through, effectively improved the transformation efficiency of silicon solar cell.
Description of drawings
Fig. 1 a is the overall structure schematic diagram of web plate of the present utility model;
Fig. 1 b is the enlarged diagram of A part among Fig. 1 a;
Fig. 1 c drains to the schematic diagram that does not meet at a time-out on the silicon chip behind the mesh of silver slurry by the web plate shown in Fig. 1 a;
Fig. 1 d is the enlarged diagram of B part among Fig. 1 c;
The thin grid line schematic diagram that Fig. 1 e crosses and forms for the slurry of the silver among Fig. 1 d;
Fig. 2 a is the overall structure schematic diagram of existing plates for screen printing;
Fig. 2 b is the enlarged diagram of C part among Fig. 2 a;
Fig. 2 c drains to the schematic diagram that does not meet at a time-out on the silicon chip behind the mesh of silver slurry by the plates for screen printing shown in Fig. 2 a;
Fig. 2 d is the enlarged diagram of D part among Fig. 2 c;
The thin grid line schematic diagram that Fig. 2 e crosses and forms for the slurry of the silver among Fig. 2 d.
The specific embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
A kind of web plate that is used to print silicon solar battery electrode that the utility model proposes, shown in Fig. 1 a and Fig. 1 b, it comprises that metal framework 11 is as aluminium sash etc. be arranged at stainless steel substrates 12 in the metal framework 11, the edge of stainless steel substrates 12 is connected with the inner side edge of metal framework 11, the center of stainless steel substrates 12 is provided with a big or small corresponding Printing Zone 13 of the shape with the silicon chip of electrode to be printed, laterally carve in the Printing Zone 13 and be provided with the horizontal mesh array group 14 of many groups, laterally the spacing between the mesh array group 14 is identical, vertically carve in the Printing Zone 13 and be provided with some groups of vertical mesh array group 15, every group of vertical mesh array group 15 with organize horizontal mesh array group 14 and have the intersection region, laterally mesh array group 14 comprises multirow mesh capable 141, spacing between the mesh capable 141 is identical, mesh capable 141 mainly is made up of a plurality of square mesh 16 equidistantly horizontal parallel arranged, vertically mesh array group 15 comprises multiple row mesh row 151, spacing between the mesh row 151 is identical, mesh row 151 mainly are made up of the 16 square mesh 16 equidistantly vertical parallel arranged of the same size of the square mesh in a plurality of and the mesh capable 141, spacing between the square mesh in spacing between the mesh capable 141 and the mesh row 151 is identical, spacing between the square mesh in the mesh capable 141 is identical with spacing between the mesh row 151, and the spacing between the mesh capable 141 is identical with spacing between the mesh row 151.
At this, the Stainless Steel sheet can adopt existing any Stainless Steel material to make; Establish horizontal mesh array group 14 and can adopt photoetching techniques such as laser boring with vertical mesh array group 15 quarter in Printing Zone 13.
The silicon chip size that common silicon solar cell is adopted is 125 * 125mm, therefore in the present embodiment, in Printing Zone 13, carve and establish 52 groups of horizontal mesh array group 14 and 2 groups of vertical mesh array group 15, laterally the width of mesh array group 14 is that width of all mesh capable 141 in the horizontal mesh array group 14 and the spacing sum between the mesh capable 141 equal 50 μ m, and laterally the length of mesh array group 14 is that the length of side of all the square mesh 16 in the mesh capable 141 and the spacing sum between the square mesh 16 in the mesh capable 141 equal 120 * 10
3μ m, the width of vertical mesh array group 15 are that the width and the spacing sum between the mesh row 151 of all the mesh row 151 in vertical mesh array group 15 equals 1990 μ m.
For making the free electron of collecting on the thin grid line can all be pooled on the main grid line, at this 1/4th intersection fork that the 1st group of vertical mesh array group and each row mesh is capable, 3/4ths intersection fork that the 2nd group of vertical mesh array group and each row mesh are capable, / 4th intersection fork of the 1st main grid line that i.e. printing obtains and 52 thin grid lines, the 2nd main grid line that printing obtains and 3/4ths intersection of 52 thin grid lines fork.
In this specific embodiment, spacing between the square mesh in spacing between the square mesh in spacing between the length of side, the mesh capable 141 of square mesh 16, spacing, the mesh capable 141 between the mesh row 151, the mesh row 151 all can be made as 8～12 μ m, in the actual design process, can all be made as 10 μ m, every group of horizontal mesh array group 14 comprises 3 row mesh capable 141 like this, every group of vertical mesh array comprises 100 row mesh row 151 for 15 groups, and the every capable mesh capable 141 in 14 groups of every group of horizontal mesh arrays comprises about 60000 square mesh 16.
When using screen printing front electrode grid line of the present utility model, the silver slurry is poured on the Printing Zone 13 of Stainless Steel sheet 12, printing is scraped the silver slurry back and forth with scraper makes the silver slurry drain on the silicon chip 91 by each square mesh 16, because the mesh 16 in this Stainless Steel sheet 12 all is square (shown in Fig. 1 b), therefore drain to the silver slurry heap 92 big or small basically identicals (shown in Fig. 1 c and Fig. 1 d) on the silicon chip 91, the width uniformity (shown in Fig. 1 e) of the grid line 93 that forms after making silver slurry heap 92 cross, improved printing precision, thereby make the free electron that silicon solar cell produced to pass through fully, effectively improved the transformation efficiency of silicon solar cell.
Claims (7)
1. web plate that is used to print silicon solar battery electrode, comprise metal framework, it is characterized in that being provided with in the described metal framework Stainless Steel sheet, described Stainless Steel sheet is provided with a corresponding Printing Zone of the silicon chip with electrode to be printed, laterally carve in the described Printing Zone and be provided with the horizontal mesh array group of many groups, spacing between the described horizontal mesh array group is identical, vertically carve in the described Printing Zone and be provided with some groups of vertical mesh array group, every group of described vertical mesh array group with organize described horizontal mesh array group and have the intersection region, described horizontal mesh array group comprises that the multirow mesh is capable, spacing between described mesh is capable is identical, described mesh is capable mainly to be made up of the equidistantly horizontal parallel arranged of a plurality of square mesh, described vertical mesh array group comprises multiple row mesh row, spacing between the described mesh row is identical, described mesh row main by a plurality of and described mesh the equidistantly vertical parallel arranged of described square mesh square mesh of the same size in capable form, spacing between the described square mesh in spacing between described mesh is capable and the described mesh row is identical, and the spacing between the described square mesh during described mesh is capable is identical with spacing between described mesh is listed as.
2. a kind of web plate that is used to print silicon solar battery electrode according to claim 1 is characterized in that the spacing of described mesh between capable is identical with spacing between the described mesh row.
3. a kind of web plate that is used to print silicon solar battery electrode according to claim 1 and 2, it is characterized in that carving in the described Printing Zone and be provided with 52 groups of described horizontal mesh array group and 2 groups of described vertical mesh array group, the width of described horizontal mesh array group is that capable width of all the described mesh in the described horizontal mesh array group and the described mesh spacing sum between capable equals 50 μ m, and the length of described horizontal mesh array group is that the spacing sum between the length of side of all described square mesh of described mesh in capable and the described mesh described square mesh in capable equals 120 * 10
3μ m, the width of described vertical mesh array group are that the width of all the described mesh row in described vertical mesh array group and the spacing sum between the described mesh row equal 1990 μ m.
4. a kind of web plate that is used to print silicon solar battery electrode according to claim 3, it is characterized in that 1/4th intersection fork that the 1st group of described vertical mesh array group and each capable described mesh are capable, 3/4ths intersection fork that the 2nd group of described vertical mesh array group and each capable described mesh are capable.
5. a kind of web plate that is used to print silicon solar battery electrode according to claim 4 is characterized in that the spacing between the described square mesh of the length of side of described square mesh, described mesh spacing, spacing, the described mesh between the described mesh row between capable in capable, the spacing between the square mesh described in the described mesh row are 8～12 μ m.
6. a kind of web plate that is used to print silicon solar battery electrode according to claim 5 is characterized in that the spacing between the described square mesh of the length of side of described square mesh, described mesh spacing, spacing, the described mesh between the described mesh row between capable in capable, the spacing between the square mesh described in the described mesh row are 10 μ m.
7. a kind of web plate that is used to print silicon solar battery electrode according to claim 1 is characterized in that described Printing Zone is arranged at the center of described Stainless Steel sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205769703U CN201856441U (en) | 2010-10-26 | 2010-10-26 | Screen plate used for printing silicon solar battery electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205769703U CN201856441U (en) | 2010-10-26 | 2010-10-26 | Screen plate used for printing silicon solar battery electrode |
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| Publication Number | Publication Date |
|---|---|
| CN201856441U true CN201856441U (en) | 2011-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205769703U Expired - Lifetime CN201856441U (en) | 2010-10-26 | 2010-10-26 | Screen plate used for printing silicon solar battery electrode |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102029776A (en) * | 2010-10-26 | 2011-04-27 | 宁波升日太阳能电源有限公司 | Screen for printing silicon solar battery electrodes |
| CN102615955A (en) * | 2012-04-18 | 2012-08-01 | 中利腾晖光伏科技有限公司 | Positive electrode screen printing plate of silicon solar cell |
| CN102615954A (en) * | 2012-04-16 | 2012-08-01 | 中利腾晖光伏科技有限公司 | Solar battery positive electrode screen |
| CN102615951A (en) * | 2012-03-23 | 2012-08-01 | 昆山允升吉光电科技有限公司 | Wire mesh |
| CN102963115A (en) * | 2012-11-29 | 2013-03-13 | 英利能源（中国）有限公司 | Solar cell and printing silk screen thereof |
| CN102991101A (en) * | 2011-09-15 | 2013-03-27 | 浚鑫科技股份有限公司 | Positive electrode printing screen |
| CN103171263A (en) * | 2011-12-23 | 2013-06-26 | 昆山允升吉光电科技有限公司 | Screen board used for printing of positive electrode of crystalline silicon solar cell |
| CN103171266A (en) * | 2011-12-23 | 2013-06-26 | 昆山允升吉光电科技有限公司 | Screen board used for printing of positive electrode of crystalline silicon solar cell |
| CN103171245A (en) * | 2011-12-23 | 2013-06-26 | 昆山允升吉光电科技有限公司 | Preparation method for solar battery electrode mask plate |
| CN103171261A (en) * | 2011-12-23 | 2013-06-26 | 昆山允升吉光电科技有限公司 | Screen board used for printing of positive electrode of crystalline silicon solar cell |
| CN103358670A (en) * | 2012-04-10 | 2013-10-23 | 昆山允升吉光电科技有限公司 | Printing screen |
| GB2521344A (en) * | 2013-10-27 | 2015-06-24 | Asm Assembly Systems Switzerland Gmbh | Printing screens, methods of fabricating the same and methods of screen printing |
-
2010
- 2010-10-26 CN CN2010205769703U patent/CN201856441U/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102029776B (en) * | 2010-10-26 | 2012-10-10 | 宁波升日太阳能电源有限公司 | Screen for printing silicon solar battery electrodes |
| CN102029776A (en) * | 2010-10-26 | 2011-04-27 | 宁波升日太阳能电源有限公司 | Screen for printing silicon solar battery electrodes |
| CN102991101A (en) * | 2011-09-15 | 2013-03-27 | 浚鑫科技股份有限公司 | Positive electrode printing screen |
| CN103171245A (en) * | 2011-12-23 | 2013-06-26 | 昆山允升吉光电科技有限公司 | Preparation method for solar battery electrode mask plate |
| CN103171263A (en) * | 2011-12-23 | 2013-06-26 | 昆山允升吉光电科技有限公司 | Screen board used for printing of positive electrode of crystalline silicon solar cell |
| CN103171266A (en) * | 2011-12-23 | 2013-06-26 | 昆山允升吉光电科技有限公司 | Screen board used for printing of positive electrode of crystalline silicon solar cell |
| CN103171261A (en) * | 2011-12-23 | 2013-06-26 | 昆山允升吉光电科技有限公司 | Screen board used for printing of positive electrode of crystalline silicon solar cell |
| CN102615951A (en) * | 2012-03-23 | 2012-08-01 | 昆山允升吉光电科技有限公司 | Wire mesh |
| CN103358670A (en) * | 2012-04-10 | 2013-10-23 | 昆山允升吉光电科技有限公司 | Printing screen |
| CN103358670B (en) * | 2012-04-10 | 2016-12-14 | 昆山允升吉光电科技有限公司 | Printing screen plate |
| CN102615954A (en) * | 2012-04-16 | 2012-08-01 | 中利腾晖光伏科技有限公司 | Solar battery positive electrode screen |
| CN102615955A (en) * | 2012-04-18 | 2012-08-01 | 中利腾晖光伏科技有限公司 | Positive electrode screen printing plate of silicon solar cell |
| CN102963115A (en) * | 2012-11-29 | 2013-03-13 | 英利能源（中国）有限公司 | Solar cell and printing silk screen thereof |
| GB2521344A (en) * | 2013-10-27 | 2015-06-24 | Asm Assembly Systems Switzerland Gmbh | Printing screens, methods of fabricating the same and methods of screen printing |
| CN105658433A (en) * | 2013-10-27 | 2016-06-08 | 先进装配系统瑞士有限公司 | Printing screens, methods of fabricating the same and methods of screen printing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110608 Effective date of abandoning: 20121010 |