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 8470619 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 25, 2013

Filed:

Oct. 21, 2010
Applicants:

David P. Bour, Cupertino, CA (US);

Clifford F. Knollenberg, Fremont, CA (US);

Christopher L. Chua, San Jose, CA (US);

Inventors:

David P. Bour, Cupertino, CA (US);

Clifford F. Knollenberg, Fremont, CA (US);

Christopher L. Chua, San Jose, CA (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method of texturing a surface within or immediately adjacent to a template layer of a LED is described. The method uses a texturing laser directed through a substrate to decompose and pit a semiconductor material at the surface to be textured. By texturing the surface, light trapping within the template layer is reduced. Furthermore, by patterning the arrangement of pits, metal coating each pit can be arranged to spread current through the template layer and thus through the n-doped region of a LED.


Find Patent Forward Citations

Bour, David. (2013). Selective decomposition of nitride semiconductors to enhance led light extraction (U.S. Patent No. 8470619). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8470619

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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