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:
Aug. 04, 2009
Filed:
Jan. 14, 2008
Liann-be Chang, Dasi Township, Taoyuan County, TW;
Shiue-ching Chiuan, Wurih Township, Taichung County, TW;
Kuo-ling Chiang, Taoyuan, TW;
Liann-Be Chang, Dasi Township, Taoyuan County, TW;
Shiue-Ching Chiuan, Wurih Township, Taichung County, TW;
Kuo-Ling Chiang, Taoyuan, TW;
Chang Gung University, Tao-Yuan, TW;
Abstract
A method of manufacturing an LED of high reflectivity includes forming a substrate; depositing an n-type GaN layer on the substrate; depositing an active layer on a first portion of the n-type GaN layer; attaching an n-type metal electrode to a second portion of the n-type GaN layer; depositing a p-type GaN layer on the active layer; forming a metal reflector on the p-type GaN layer; attaching a p-type metal electrode to the metal reflector; and attaching the p-type metal electrode and the n-type metal electrode to an epitaxial layer respectively. The metal reflector includes a transparent layer, an Ag layer, and an Au layer. The transparent layer and the Ag layer are formed by annealing in a furnace, and the Au layer is subsequently coated on the Ag layer.