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:
Dec. 13, 1977
Filed:
Dec. 31, 1975
John E Lawrence, Cupertino, CA (US);
Icheng Wu, Sunnyvale, CA (US);
Silicon Material, Inc., Mountain View, CA (US);
Abstract
A process for manufacturing a solar cell from a reject semiconductor wafer comprising stripping all external layers from the wafer, etching the surfaces of the wafer so as to effectively remove all P/N junctions without pitting the wafer surface, introducing a layer of dopant to form a P/N junction in the front wafer surface, forming a first patterned conductive electrode over the dopant layer, and forming a second conductive electrode on the back surface of the wafer. In the preferred embodiment a sputtering operation is used to form the conductive electrodes.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile