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Manufacture method of silicon solar cell electrode screen board

A technology of solar cells and printing screens, applied in printing, circuit, printing plate preparation, etc., to achieve the effect of improving conversion efficiency and printing accuracy

Inactive Publication Date: 2013-06-26
KUN SHAN POWER STENCIL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In order to solve the above problems, the object of the present invention is to provide a method for making a solar silicon cell electrode printing screen, to solve the problem of traditional screen interweaving and overlapping weaving, and to improve the conversion efficiency of solar cells

Method used

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  • Manufacture method of silicon solar cell electrode screen board
  • Manufacture method of silicon solar cell electrode screen board
  • Manufacture method of silicon solar cell electrode screen board

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Embodiment Construction

[0035] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0036] The manufacturing method of the solar silicon cell electrode printing screen of the present invention adopts etching process to make the stainless steel solar cell electrode mask plate, and the latitude and longitude nodes of the traditional silk screen photosensitive emulsion mask plate do not exist on the mask plate surface produced, and the stainless steel sheet is used as As a whole, its surface is smoother, its contact with the surface of the printed silicon wafer is closer during printing, and its resolution during printing is better.

[0037] Please refer to figure 1 Shown, the ma...

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Abstract

The invention discloses a manufacture method of a silicon solar cell electrode screen board. The manufacturing method includes the following steps: S1: preprocessing, performing preprocessing to a stainless steel sheet to be etched; S2: pasting a dry film, uniformly coating a sensitive dry film on the obtained stainless steel sheet; S3: carrying out exposure, fixing a base plate in an exposure chamber of an exposure machine and performing exposure to the dry film on the base plate by ultraviolet rays; S4: developing, performing development to the base plate subjected to exposure, dissolving and cleaning the dry film which is not subjected to exposure, and leaving an electrode screen board graph of a solar cell; and S5: etching, performing etching to the developed steel sheet to etch a position at which an opening is needed. According to the manufacture method, the whole stainless steel sheet is adopted to be etched, when the steel sheet is selected, the steel sheet with proper roughness is chosen according to the requirement of the product surface roughness, so that the surface of a manufactured mask can well meet the printing requirement, the printing precision can be well improved and the conversion efficiency of the solar cell is improved.

Description

[0001] technical field [0002] The invention belongs to the technical field of solar screen manufacture, and in particular relates to a method for manufacturing a solar silicon cell electrode printed screen. [0003] Background technique [0004] At present, with the continuous development of silicon solar cell technology, while pursuing low cost, the industry has higher and higher requirements for the performance of solar cells, and higher technology has been proposed for the conversion efficiency of solar cells and the cost of silicon solar cells. Require. [0005] Solar cell production mainly includes the following steps: silicon wafer cutting, material preparation; removal of damaged layer; texturing; diffusion junction; edge etching and cleaning; deposition of anti-reflection layer; printing upper and lower electrodes; Cell testing. Among them, the printing of electrodes has a great influence on the performance of solar cells. Printing high-quality electrodes (th...

Claims

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Application Information

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IPC IPC(8): B41C1/14H01L31/18
CPCY02P70/50
Inventor 魏志凌高小平杨志龙赵录军
Owner KUN SHAN POWER STENCIL
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