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Washing technology for substrate glass with TCO layer etched by laser

A technology of laser etching and cleaning tools, which is applied in the direction of cleaning methods using tools, cleaning methods using liquids, cleaning flexible objects, etc., which can solve problems such as not being able to meet cleaning requirements, and achieve the effect of reducing investment costs

Active Publication Date: 2014-11-19
成都中浦科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problem that the traditional cleaning process cannot meet the cleaning requirements of the TCO substrate glass after the first laser etching of the TCO film layer, the present invention designs a substrate glass for the laser etching of the TCO layer. Cleaning process, using this cleaning process can remove impurities such as particles and debris remaining on the substrate glass surface and etching groove after the first laser etching, can effectively improve the coating quality of the subsequent process of the production line, and play a role in improving the efficiency of the battery to a vital role

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  • Washing technology for substrate glass with TCO layer etched by laser

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Embodiment Construction

[0019] A cleaning process for the substrate glass after the laser etching of the TCO layer. This process is based on the pre-spray cleaning chamber 1 and the cleaning agent spray cleaning chamber 2 which are sequentially arranged on the TCO substrate glass delivery roller 9. , Spray cleaning chamber 3, rinsing chamber 4 and drying chamber 5 again, and the described process steps include:

[0020] A. Pre-spray cleaning: control the pre-spray cleaning chamber 1 at normal temperature, use deionized water as the cleaning liquid, and set a group of nozzle assemblies respectively on the upper and lower 90-110mm of the TCO substrate glass conveying roller Perform pre-spraying as a cleaning tool, wherein each group of nozzle assemblies includes 18-25 fan-shaped nozzles, and the flow rate of each nozzle is 1-1.1 L / Min under the pressure of 0.12-0.16Mpa;

[0021] B. Cleaning agent spray cleaning: control the cleaning agent spray cleaning chamber 2 at a temperature of 45°C±2°C, and spray...

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Abstract

The invention discloses a washing technology for substrate glass with a TCO layer etched by a laser, and belongs to the second washing technology for a solar cell production line. The washing technology is a method for washing the TCO substrate glass scribed by the laser P1 for the first time. Particles, chippings and other impurities left on the surface or in line grooves of the TCO substrate glass scribed by the laser P1 are removed mainly through prewashing, cleaning agent spraying, secondary spraying, rinsing, air knife drying and other technologies, the film coating quality of the subsequent technology of the production line can be effectively improved, and the washing technology plays a vital role in improving the efficiency of a cell.

Description

technical field [0001] The invention belongs to the technical field of thin-film solar cell manufacturing, and relates to a cleaning process in the production process of thin-film solar cells, specifically TCO substrate glass coated with a TCO film layer on the substrate glass and performing laser etching on the TCO film layer for the first time cleaning process. Background technique [0002] The TCO substrate glass cleaning machines after the first laser etching of the TCO film layer on the existing amorphous silicon thin-film solar cell production line all follow the cleaning machine of the TFT production line, and the cleaning process also follows the cleaning process of the TFT production line. In the production process of thin-film solar cells, at least four cleanings are required, namely: cleaning of the TCO substrate glass after chamfering, cleaning after the first laser etching of the TCO film layer, and cleaning before lamination. The cleaning of the transparent TC...

Claims

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Application Information

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IPC IPC(8): B08B11/04B08B7/04B08B3/02B08B1/02
CPCB08B3/022B08B3/041B08B11/04F26B21/00
Inventor 李岩李兆廷朱华郭婷婷
Owner 成都中浦科技有限公司