On-line air knife drying device

Abstract

The invention discloses an on-line air knife drying device used for drying battery silicon wafers which have been subjected to texturization or wet etching. The on-line air knife drying device includes an upper air knife and a lower air knife which are arranged oppositely; air outlets of the upper air knife and the lower air knife are respectively designed to three rows of staggered and spaced air holes, wherein the middle row of air holes is arranged in a tilted manner; when the silicon wafers pass through the air knifes under the transmission of rolling wheels, the tilting direction of air blown out by the middle row of air holes is opposite to the movement direction of the silicon wafers; the distance between the upper air knife and the lower air knife, the distance between the upper air knife and the surfaces of the silicon wafers, and the distance between the lower air knife and the surfaces of the silicon wafers can be adjusted through an adjustment support, so that a drying effect can be better; when the silicon wafers pass through the air knifes under the transmission of the rolling wheels, air blown out from the air holes can expel liquid on the surfaces of the silicon wafers, and on-line fast drying of the silicon wafers can be realized under the drying effect of hot air.

Description

technical field [0001] The invention relates to the field of production equipment for semiconductor solar cells, and more particularly relates to an online air knife drying device for drying cell silicon chips after texturing or wet etching. Background technique [0002] A solar cell is a device that directly converts light energy into electrical energy through the photoelectric effect or photochemical effect. When sunlight shines on a semiconductor, part of it is reflected by the surface, and the rest is absorbed or transmitted by the semiconductor; some of the absorbed photons become heat, and others collide with the atomic valence electrons that make up the semiconductor to generate electrons - Pair of holes. In this way, light energy is converted into electrical energy in the form of electron-hole pairs. [0003] With the increasingly serious global warming effect and the depletion of oil, natural gas, coal and other resources, environmental protection and energy savin...

AI Technical Summary

Problems solved by technology

The structural setting of this air knife is difficult to quickly and thoroughly blow off and dry the chemical solution on the silicon wafer, and it causes inconvenience in debugging and maintenance

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