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Polysilicon solar battery slice etching device

A technology for solar cells and polysilicon, which is used in circuits, electrical components, and final product manufacturing. Avoid the possibility of cross-contamination and the safety of production, reduce heat loss, and avoid the effect of oxidation

Inactive Publication Date: 2010-06-02
上海科伟达超声波科技有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, solar cell cleaning equipment requires high production capacity. After cleaning, a uniform textured surface with a pyramid structure is formed. It is difficult for this equipment to ensure the process temperature of polycrystalline texture and porous silicon removal, and avoid the influence of exothermic chemical reaction on temperature in the process, which will affect the final product. Product Consistency and Stability

Method used

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  • Polysilicon solar battery slice etching device
  • Polysilicon solar battery slice etching device
  • Polysilicon solar battery slice etching device

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and examples. The following description is only for understanding the technical solution of the present invention, and is not intended to limit the scope of the present invention.

[0022] The polysilicon solar cell texturing equipment provided by the present invention comprises: a polysilicon solar cell texturing part, a polysilicon solar cell pickling part and a microcomputer control system, and the polysilicon solar cell texturing part and the polysilicon solar cell pickling part are all connected To the microcomputer control system, the microcomputer control system can individually control or coordinate the control of the texturing part of the crystalline silicon solar cell and the pickling part of the polycrystalline silicon solar cell.

[0023] Such as figure 1 As shown, the polycrystalline silicon solar cell texturing part A includes: a feeding mechanism 2, a first...

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Abstract

The invention discloses a polysilicon solar battery slice etching device which comprises a polysilicon solar battery slice etching part, a polysilicon solar battery slice acid-cleaning part and a microcomputer control system, wherein the polysilicon solar battery slice etching part and the polysilicon solar battery slice acid-cleaning part are both connected to the microcomputer control system, and the microcomputer control system carries out independent control or coordinated control on the polysilicon solar battery slice etching part and the polysilicon solar battery slice acid-cleaning part. The invention can reduce the secondary pollution, improves the working environment and the production efficiency, breaks down the monopoly of foreign technologies and provides conditions for the application of domestic equipment.

Description

technical field [0001] The invention relates to a texturing equipment in the technical field of semiconductors, in particular to a texturing equipment for polycrystalline silicon solar cells. Background technique [0002] Texturing is to corrode the surface of the silicon wafer isotropically to form micro-grooves, reduce the reflectivity of the surface of the silicon wafer, promote the multi-level reflection of the sun on the surface of the silicon wafer, and improve the utilization rate of light. In the preparation process of solar crystalline silicon cells, the texturing process is an important part related to the light absorption on the surface of solar cells, and is also one of the important ways to improve the conversion efficiency of solar cells. [0003] Today, with the rapid development and application of solar cells, for the crystalline silicon solar cells that currently occupy the main market, the emissivity without surface treatment generally exceeds 30%. After an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/18
CPCY02P70/50
Inventor 周柏林袁佩君大石满范对堂
Owner 上海科伟达超声波科技有限公司
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