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:
Feb. 02, 2016
Filed:
May. 04, 2012
Wieland Pethe, Dresden, DE;
Harald Hahn, Dresden, DE;
Kristian Schlegel, Zwickau, DE;
Torsten Weber, Dresden, DE;
Martin Kutzer, Penig, DE;
Wieland Pethe, Dresden, DE;
Harald Hahn, Dresden, DE;
Kristian Schlegel, Zwickau, DE;
Torsten Weber, Dresden, DE;
Martin Kutzer, Penig, DE;
SolarWorld Innovations GmbH, Freiberg, DE;
Abstract
For contacting a silicon solar cell a pre-processed silicon substrate with a frontside and a backside is provided. Then, aluminum is deposited on the backside of the pre-processed silicon substrate, wherein aluminum-free regions remain on the backside. Then, a silver-free layer suitable for soldering on the backside of the silicon substrate is deposited so that the silver-free layer suitable for soldering covers at least the aluminum-free regions on the backside.