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:
Jan. 20, 2026
Filed:
Jun. 29, 2022
Tongwei Solar (Meishan) Co., Ltd., Sichuan, CN;
Gongqing Zhou, Sichuan, CN;
Kun Hou, Sichuan, CN;
Shixiang Tan, Sichuan, CN;
Taosheng Yuan, Sichuan, CN;
Tongwei Solar (Meishan) Co., Ltd., Sichuan, CN;
Abstract
Provided are N-type monocrystalline silicon double-sided solar cell and preparation method thereof. Preparation method includes following steps: S1: performing double-sided texturing to obtain N-type monocrystalline silicon with front surface and back surface having first textured structures respectively; S2: performing back-surface phosphorus diffusion doping to form back surface field; S3: removing winding plating and PSG on front surface and back surface, forming mask for protecting first textured structure of back surface on surface of back surface field, and manufacturing second textured structure on front surface of N-type monocrystalline silicon; S4: performing front-surface boron diffusion doping to form front-surface doped emitter junction layer; S5: after removal of mask, winding plating and BSG on front surface and back surface, depositing passivation antireflection layer on surface of front-surface doped emitter junction layer, and depositing passivation layer on surface of back surface field; and S6: preparing front surface electrode and back surface electrode.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile