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:
Apr. 15, 2008
Filed:
Mar. 02, 2005
Wen-yung Yeh, Hsinchu, TW;
Jenq-dar Tsay, Taipei, TW;
Chang-cheng Chuo, Changhua, TW;
Jung-tsung Hsu, Hsinchu, TW;
Jim-yong Chi, Taichung, TW;
Wen-Yung Yeh, Hsinchu, TW;
Jenq-Dar Tsay, Taipei, TW;
Chang-Cheng Chuo, Changhua, TW;
Jung-Tsung Hsu, Hsinchu, TW;
Jim-Yong Chi, Taichung, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A light emitting diode (LED). The LED comprises a LED chip comprising an n-type semiconductor layer, a active layer and a p-type semiconductor layer. An n-type ohmic contact electrode and a p-type ohmic contact electrode electrically contact the n-type semiconductor layer and the p-type semiconductor layer respectively. An AlGaInN thick film is on the LED chip, and the AlGaInN thick film has an oblique side and a textured top surface.