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:
Jul. 25, 2017
Filed:
Mar. 19, 2015
International Business Machines Corporation, Armonk, NY (US);
Brett Caroline Baker-O'Neal, Sleepy Hollow, NY (US);
Shu-Yun Chong, Singapore, SG;
John Michael Cotte, New Fairfield, CT (US);
Ronald Dean Goldblatt, Yorktown Heights, NY (US);
Jeffrey Hedrick, Montvale, NJ (US);
Qiang Huang, Croton on Hudson, NY (US);
Susan Huang, Mount Kisco, NY (US);
Laura Louise Kosbar, Mohegan Lake, NY (US);
Rob Steeman, Singapore, SG;
Roland Yudadibrata Utama, Singapore, SG;
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Abstract
Photovoltaic devices are formed by laser drilling vias through silicon substrates and, following surface preparation of the via sidewalls, plating a continuous, electrically conductive layer on the via sidewalls to electrically connect the emitter side of the cell with the back side of the cell. The electrically conductive layer can be formed on portions of a base emitter within the vias and on the back side of the substrate. Alternatively, the electrically conductive layer can be formed on a passivation layer on the via sidewalls and back side of the cell.