CN103332000A - Screen printing plate design method special for improving grid line shaping - Google Patents
Screen printing plate design method special for improving grid line shaping Download PDFInfo
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- CN103332000A CN103332000A CN2013102497118A CN201310249711A CN103332000A CN 103332000 A CN103332000 A CN 103332000A CN 2013102497118 A CN2013102497118 A CN 2013102497118A CN 201310249711 A CN201310249711 A CN 201310249711A CN 103332000 A CN103332000 A CN 103332000A
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- grid line
- printing plate
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- half tone
- screen printing
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Abstract
The invention discloses a screen printing plate design method special for improving grid line shaping. A screen printing plate comprises a framework, a steel plate, a primary grid line pattern and a secondary grid line pattern, the thickness h of a steel screen is 15-20 mu m; the secondary grid line consists of a plurality of rectangular holes; the lengths y of the rectangular holes are 600-1,000 mu, widths x are 25-50 mum, and the thicknesses h1=h/2; the distances a between every two adjacent rectangular holes are 10 mu m; a main screen plate grid of the steel screen consists of a plurality of circular holes which are connected tightly and are 30-45 mu m in diameter; the distances h between every two adjacent circular holes in the same row are 3-5 mu m; and the distances H between every two adjacent rows of circular holes are 3-5 mu m. The screen printing plate design method has the beneficial effects that the grid line shaping is improved effectively, the aspect ratio of each grid line is increased by over 6 percent, and the printing quality problems of broken lines, junctions and the like are solved.
Description
Technical field
The present invention relates to the crystal silicon solar batteries sheet and make the field, relate to a kind of being exclusively used in particularly and improve the moulding half tone method for designing of grid line.
Background technology
In crystal silicon solar batteries sheet manufacturing process, serigraphy is to produce one of important procedure of crystal silicon solar batteries sheet, and its printing quality directly determines the technical indicator of battery sheet.In addition, the cost of sizing agent that silkscreen process is used occupies more than 80% of entire cell sheet manufacturing cost, and wherein the cost of positive silver paste accounts for more than 50% of whole cost.In the design of the positive electrode half tone of prior art, the half tone material is silk screen and photoresists, and wherein web material has two kinds of stainless steel and nylon.This kind material is easy to generate problems such as broken string, node when printing in large-scale production process, and is unfavorable for the accumulation of slurry, does not reach good moulding.Therefore, how under the prerequisite of the photoelectric transformation efficiency that improves the crystal silicon solar batteries sheet, reduce printing unit consumption and the quality of positive silver, reach the purpose that reduces production costs, become the hot issue of research in the industry.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of being exclusively used in to improve the moulding half tone method for designing of grid line, thereby it is moulding further to improve grid line, reaches the purpose of problems such as solving broken string, node.
The technical solution adopted in the present invention is: a kind of being exclusively used in improved the moulding half tone method for designing of grid line, comprises framework, steel plate, main grid line and secondary grid line figure, and the thickness h of described steel mesh is 15～20um; Described secondary grid line is that some rectangle holes are formed, and the rectangle hole is of a size of length y=600～1000um, width x=25～50um, thickness h 1=h/2, adjacent two rectangle hole spacing a=10um; Described steel mesh half tone main grid is the circular opening that is closely linked to each other by some, diameter d=35～45um, and same row is adjacent, and two circular hole spacing h are 3～5um, adjacent two row's circular hole spacing H are 3～5um.
The invention has the beneficial effects as follows that to improve grid line effectively moulding, the grid line depth-width ratio improves more than 6%, solves printing quality problems such as broken string, node.
Description of drawings
Provided by the invention being exclusively used in of Fig. 1 improved the moulding half tone design configuration of grid line
Fig. 2 adopts provided by the invention being exclusively used in to improve grid line figure in the moulding half tone of grid line
Among the figure: x, y represent length and the width of rectangle hole respectively; A represents the spacing of adjacent two rectangle holes
Fig. 3 adopts the structure chart that improves main grid line in the moulding half tone of grid line that is exclusively used in provided by the invention
Among the figure: d represents the diameter of each aperture; H represents adjacent two the circular hole spacings of same row; H represents adjacent two row's circular hole spacings.
The specific embodiment
Be described in further detail below in conjunction with accompanying drawing 1,2,3 pairs of technical schemes of the invention process.
In the present embodiment, to same batch silicon chip, adopt identical preparation technology, but adopt different positive electrode half tones to print in silkscreen process, and its result is detected and comparative analysis.Adopt and provided by the inventionly be exclusively used in that to improve the moulding half tone design parameter of grid line as follows: the thickness h of steel mesh is 20um, carves out the rectangle hole of width x=30um, length y=800um, rectangle hole spacing a=10um and thickness h 1=10um at steel mesh; Be to be engraved as circular opening on the steel mesh half tone main grid line, diameter d=40um, same row is adjacent, and two circular hole spacing h are 3um, adjacent two row's circular hole spacing H are 3um.Adopt the parameter of traditional silk screen half tone as follows: the order number is 360, and line directly is 16um, and thickness is 15 ± 1um, and tension force is 28 ± 1N.As shown in table 1 by 3D microscope test result, the depth-width ratio of steel mesh screen painting grid line on average exceeds 8.19% than silk screen half tone, and does not have broken string, node problem in the slice, thin piece of printing.
Table 1 adopts the depth-width ratio correction data behind steel mesh half tone and the silk screen screen painting
Claims (4)
1. one kind is exclusively used in the moulding half tone method for designing of raising grid line, comprises framework, steel plate, main grid line and secondary grid line figure, and it is characterized in that: secondary grid line is made up of some rectangle holes, and the main grid line is made up of some circular openings.
2. a kind of being exclusively used in according to claim 1 improved the moulding half tone method for designing of grid line, and it is characterized in that: the thickness h of described steel plate is 15～20um.
3. a kind of being exclusively used in according to claim 1 improved the moulding half tone method for designing of grid line, it is characterized in that: described secondary grid line is that some rectangle holes are formed, the rectangle hole is of a size of length y=600～1000um, width x=25～50um, thickness h 1=h/2, adjacent two rectangle hole spacing a=10um.
4. a kind of being exclusively used in according to claim 1 improved the moulding half tone method for designing of grid line, it is characterized in that: the main grid of described steel mesh half tone is made up of some circular openings that closely link to each other, its diameter d=35～45um, same row is adjacent, and two circular hole spacing h are 3～5um, and adjacent two row's circular hole spacing H are 3～5um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310249711.8A CN103332000B (en) | 2013-06-22 | 2013-06-22 | Screen printing plate design method special for improving grid line shaping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310249711.8A CN103332000B (en) | 2013-06-22 | 2013-06-22 | Screen printing plate design method special for improving grid line shaping |
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| Publication Number | Publication Date |
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| CN103332000A true CN103332000A (en) | 2013-10-02 |
| CN103332000B CN103332000B (en) | 2017-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310249711.8A Active CN103332000B (en) | 2013-06-22 | 2013-06-22 | Screen printing plate design method special for improving grid line shaping |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103640328A (en) * | 2013-12-14 | 2014-03-19 | 福州大学 | High-stability precision composite screen printing plate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202293614U (en) * | 2011-09-28 | 2012-07-04 | 中节能太阳能科技（镇江）有限公司 | Positive silver screen printing plate of screen printing crystalline silicon solar cell |
| CN202428772U (en) * | 2011-12-23 | 2012-09-12 | 昆山允升吉光电科技有限公司 | Solar cell electrode printing screen |
| CN202528559U (en) * | 2011-12-23 | 2012-11-14 | 昆山允升吉光电科技有限公司 | Electrode printing mask of solar cell |
| CN202556882U (en) * | 2012-04-16 | 2012-11-28 | 中利腾晖光伏科技有限公司 | Positive electrode screen of solar cell |
| CN202685522U (en) * | 2011-12-23 | 2013-01-23 | 昆山允升吉光电科技有限公司 | Solar battery electrode printing screen board |
-
2013
- 2013-06-22 CN CN201310249711.8A patent/CN103332000B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202293614U (en) * | 2011-09-28 | 2012-07-04 | 中节能太阳能科技（镇江）有限公司 | Positive silver screen printing plate of screen printing crystalline silicon solar cell |
| CN202428772U (en) * | 2011-12-23 | 2012-09-12 | 昆山允升吉光电科技有限公司 | Solar cell electrode printing screen |
| CN202528559U (en) * | 2011-12-23 | 2012-11-14 | 昆山允升吉光电科技有限公司 | Electrode printing mask of solar cell |
| CN202685522U (en) * | 2011-12-23 | 2013-01-23 | 昆山允升吉光电科技有限公司 | Solar battery electrode printing screen board |
| CN202556882U (en) * | 2012-04-16 | 2012-11-28 | 中利腾晖光伏科技有限公司 | Positive electrode screen of solar cell |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103640328A (en) * | 2013-12-14 | 2014-03-19 | 福州大学 | High-stability precision composite screen printing plate |
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| CN103332000B (en) | 2017-03-22 |
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Address after: The new warehouse Town Pinghu Road, Jiaxing City, 314206 children in Zhejiang Province Applicant after: ZHEJIANG FORTUNE ENERGY CO., LTD. Address before: The new warehouse Town Pinghu Road, Jiaxing City, 314206 children in Zhejiang Province Applicant before: Zhejiang Fortune Photovoltaic Co.,Ltd. |
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