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 7977687 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 12, 2011

Filed:

Nov. 07, 2008
Applicants:

Chun-yen Chang, Hsinchu, TW;

Tsung Hsi Yang, Shuilin Shiang, TW;

Inventors:

Chun-Yen Chang, Hsinchu, TW;

Tsung Hsi Yang, Shuilin Shiang, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/00 (2010.01);
U.S. Cl.
CPC ...
Abstract

A light emitting device (LED) structure formed on a Group IV-based semiconductor substrate is provided. The LED structure includes a Group IV-based substrate, an AlN nucleation layer formed on the Group IV-based substrate, a GaN epitaxial layer formed on the AlN nucleation layer, a distributed Bragg reflector (DBR) multi-layer structure formed on the epitaxial layer, and an LED active layer formed on the DBR multi-layer structure.


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Chang, Chun-Yen. (2011). Light emitter device (U.S. Patent No. 7977687). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7977687

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