ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,389,711, issued on Aug. 12, was assigned to LONGI GREEN ENERGY TECHNOLOGY Co. LTD. (Shaanxi, China).

"Solar cell metal electrode and preparation method therefor, and mask" was invented by Lianggong Hou (Nanjing, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are a solar cell metal electrode and a preparation method therefor, and a mask. The preparation method for a solar cell metal electrode in the present invention comprises: laser-etching a polymer film according to a desired electrode shape to prepare a mask; and fixing the mask onto a substrate, and plating the mask with a metal film by using a physical vapor deposition method, so tha...