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:
Jan. 13, 2009
Filed:
Apr. 24, 2006
Cheng-kuo Huang, Lung Tan, TW;
Shyi-ming Pan, Lung Tan, TW;
Yun-li LI, Lung Tan, TW;
Huan-che Tseng, Lung Tan, TW;
Fen-ren Chien, Lung Tan, TW;
Cheng-Kuo Huang, Lung Tan, TW;
Shyi-Ming Pan, Lung Tan, TW;
Yun-Li Li, Lung Tan, TW;
Huan-Che Tseng, Lung Tan, TW;
Fen-Ren Chien, Lung Tan, TW;
Formosa Epitaxy Incorporation, Taoyuan County, TW;
Abstract
A multidirectional light scattering LED and a manufacturing method thereof are disclosed. A metal oxide is irregular disposed over a second semiconductor layer and then is removed by etching. Part of the second semiconductor layer, part of a light-emitting layer or part of the first semiconductor layer is also removed so as to form a scattering layer. A transparent conductive layer is arranged over the second semiconductor layer while further a second electrode is disposed over the transparent conductive layer. A first electrode is installed on the scattering layer. Thus light output from the LED is scattered in multi-directions.