Showering-type wet-process velvet making equipment with solar silicon chips and method

Abstract

The invention discloses showering-type wet-process velvet making equipment with solar silicon chips. The showering-type wet-process velvet making equipment comprises a conveying component for conveying the silicon chips forwards, a spraying component arranged above the conveying component and a liquid supplying component arranged under the conveying component. The silicon chips are placed on the conveying component at interval, and are conveyed forwards by the conveying component, and a spraying box sprays liquid medicine downwards; and the liquid medicine flowing from the conveying component is polymerized in a liquid receiving groove. The invention also provides a method for carrying out wet-process velvet making by utilizing the showering-type wet-process velvet making equipment. The showering-type wet-process velvet making equipment and method disclosed by the invention have the advantages that corrosive liquid is sprayed or dripped on the silicon chips by a showering mode, and redundant liquid medicine and reaction products flow to the liquid receiving groove, so that the corrosive uniformity of the silicon chips is guaranteed.

Description

technical field [0001] The invention relates to the photovoltaic industry, in particular to a shower-type wet texturing equipment and method for solar silicon wafers. Background technique [0002] In the photovoltaic industry, the wet texturing of silicon wafers generally involves immersing silicon wafers in corrosive liquids for surface treatment. Due to the large amount of corrosive liquids in the reaction zone, the corrosive liquids involved in the reaction and the products after the reaction Doping with the corrosive solution that did not participate in the reaction will cause regional concentration inconsistencies in the concentration of the chemical solution in the reaction tank, which will greatly reduce the uniformity of the surface treatment of the silicon wafer and have a great impact on the quality of the processed silicon wafer . [0003] Therefore, how to provide a shower-type wet texturing equipment and method for solar silicon wafers that can effectively impr...

AI Technical Summary

Problems solved by technology

[0002] In the photovoltaic industry, the wet texturing of silicon wafers generally involves immersing silicon wafers in corrosive liquids for surface treatment. Due to the large amount of corrosive liquids in the reaction zone, the corrosive liquids involved in the reaction and the products after the reaction Doping with the corrosive solution that did not participate in the reaction will cause regional concentration inconsistencies in the concentration of the chemical solution in the reaction tank, which will greatly reduce the uniformity of the surface treatment of the silicon wafer and have a great impact on the quality of the processed silicon wafer

Images