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:
Jul. 28, 2026
Filed:
Mar. 30, 2022
Tongwei Solar (Chengdu) Co., Ltd., Chengdu, CN;
Tongwei Solar (Jintang) Co., Ltd., Chengdu, CN;
Zhi Huang, Hefei, CN;
Lin Zhang, Hefei, CN;
Peng Zhang, Hefei, CN;
Dong Yang, Hefei, CN;
Tao Xu, Hefei, CN;
Xujin Zhai, Hefei, CN;
Taihong Xie, Hefei, CN;
Shengyi Xiao, Hefei, CN;
TONGWEI SOLAR (CHENGDU) CO., LTD., Chengdu, CN;
TONGWEI SOLAR (JINTANG) CO., LTD., Chengdu, CN;
Abstract
The present disclosure relates to the technical field of solar cell preparation, and provides a solar cell, an AlOx depositing method therefor, and a cell back passivation structure and method. In the present disclosure, a silicon wafer which has been subjected to thermal oxidization and annealing is placed into a tubular PECVD equipment. The chamber is vacuumized to a pressure of 100-2000 mTorr and heated to a temperature of 300-400° C. Then nitrous oxide and TMA as reaction gases are introduced in to the chamber. The radio-frequency power supply is turned on and an AlOx passivation film having two-layer, three-layer, or more-layer film structure is prepared.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile