The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 30, 2022
Filed:
Apr. 11, 2021
Zhejiang Aiko Solar Energy Technology Co., Ltd., Yiwu, CN;
Huimin Wu, Yiwu, CN;
Xiaoming Zhang, Yiwu, CN;
Jiebin Fang, Yiwu, CN;
Kang-Cheng Lin, Yiwu, CN;
Daneng He, Yiwu, CN;
Gang Chen, Yiwu, CN;
Abstract
A method for removing an undesired coating from a front face of a crystalline silicon solar cell includes: S: depositing an AlOfilm, an SiOfilm, and an SiNfilm on a back face of a silicon wafer to form a backside passivation film, and forming an undesired coating on an edge of the front face of the silicon wafer; S: preparing an aqueous film on a surface of the backside passivation film of the product obtained in S; S: passing the product obtained in Sthrough an acid tank to remove the undesired coating; S: passing the product obtained in Sthrough a water tank to remove a residual treatment solution; and S: drying the product obtained in S