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.

Date of Patent:
Aug. 04, 2015

Filed:

Apr. 26, 2010
Applicants:

Suketu Parikh, San Jose, CA (US);

Nevran Ozguven, Mountain View, CA (US);

Duncan Harwood, Santa Clara, CA (US);

Mehrdad M. Moslehi, Los Altos, CA (US);

Inventors:

Suketu Parikh, San Jose, CA (US);

Nevran Ozguven, Mountain View, CA (US);

Duncan Harwood, Santa Clara, CA (US);

Mehrdad M. Moslehi, Los Altos, CA (US);

Assignee:

Solexel, Inc., Milpitas, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 31/00 (2006.01); H01L 31/0352 (2006.01); H01L 31/0224 (2006.01); H01L 31/0236 (2006.01); H01L 31/028 (2006.01); H01L 31/0392 (2006.01); H01L 31/18 (2006.01);
U.S. Cl.
CPC ...
H01L 31/035281 (2013.01); H01L 31/028 (2013.01); H01L 31/0236 (2013.01); H01L 31/022433 (2013.01); H01L 31/0392 (2013.01); H01L 31/1804 (2013.01); Y02E 10/547 (2013.01);
Abstract

A three-dimensional structure having a mixture of inverted pyramidal cavities and substantially flat areas defines the frontside and backside of a substrate. The substantially flat areas have ridges forming base openings of the inverted pyramidal cavities and planar linear regions across the substrate. Pyramidal sidewalls define the pyramidal cavities from the ridges to pyramidal apices. Metallization contacts emitter regions on the frontside of the substantially flat areas.


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