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. 08, 2013
Filed:
Sep. 04, 2009
Applicants:
Christian Schmid, Freudenstadt, DE;
Dirk Habermann, Kirchzarten, DE;
Inventors:
Christian Schmid, Freudenstadt, DE;
Dirk Habermann, Kirchzarten, DE;
Assignee:
Gebr. Schmid GmbH & Co., , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/00 (2006.01); H01L 31/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a method for the production of a solar cell, a flat aluminium layer is applied to the back of a solar cell substrate. The aluminium is alloyed into the silicon substrate by the effect of the temperature and forms an aluminium BSF. The remaining aluminium that has not been alloyed into the silicon is subsequently removed. The aluminium BSF is transparent to light.