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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.:

US 8916415 B1

PDFFull Text
Date of Patent:
Dec. 23, 2014

Filed:

Aug. 29, 2011

Method and device for producing a metallic contact structure for making electrical contact with a photovoltaic solar cell

Applicants:

Daniel Biro, Freiburg, DE;

Jan Specht, Freiburg, DE;

Daniel Scheffler, Freiburg, DE;

Maximilian Pospischil, Freiburg, DE;

Florian Clement, Freiburg, DE;

Inventors:

Daniel Biro, Freiburg, DE;

Jan Specht, Freiburg, DE;

Daniel Scheffler, Freiburg, DE;

Maximilian Pospischil, Freiburg, DE;

Florian Clement, Freiburg, DE;

Assignee:

Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung E.V., München, DE;

Attorney:

Volpe and Koenig, P.C.

Primary Examiner:

Karen Kusumakar

Int. Cl.
CPC ...
H01L 21/00 (2006.01); H01L 31/00 (2006.01); H01L 21/67 (2006.01); H05K 3/12 (2006.01); H01L 31/0224 (2006.01); H05K 1/09 (2006.01);
U.S. Cl.
CPC ...
H01L 31/022425 (2013.01); H01L 21/6715 (2013.01); H05K 3/1241 (2013.01); H05K 1/092 (2013.01); H05K 2203/0134 (2013.01); Y02E 10/50 (2013.01);
Abstract

A method for producing a metallic contact structure for making electrical contact with a photovoltaic solar cell, wherein, in order to create the contact structure, a paste, which contains metal particles, is applied to a surface of a carrier substrate via at least one dispensing opening, wherein the dispensing opening and the carrier substrate are moved in relation to one another during the dispensing of the paste. The paste is circulated in a circulating region, and in each case a part of the paste is branched off out of the circulating region at a plurality of branching points and each branching point is assigned at least one dispensing opening, via which the paste branched off at the branching point is applied to the surface of the carrier substrate, wherein the paste flows through a flow path having a length of less than 1 cm in each case between being branched off out of the circulating region and being dispensed from the dispensing opening assigned to the branching point. A device for producing a metallic contact structure for making electrical contact with a photovoltaic solar cell is also provided.

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