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:
Jun. 19, 2001
Filed:
Aug. 31, 2000
Applicant:
Inventors:
Assignee:
Formosa Epitaxy Incorporation, Taoyuan, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 2/100 ;
U.S. Cl.
CPC ...
H01L 2/100 ;
Abstract
A manufacturing method and its structure of a gallium nitride-based blue light emitting diode (LED) ohmic electrodes and a transparent conductive layer (TCL), which forms a thin composite layer upon P type gallium nitride and a composite thin film ohmic electrodes upon P type gallium nitride epitaxial layer and N type gallium nitride epitaxial layer, respectively. Heat treatment is applied to said composite thin film layer and composite thin film ohmic electrodes to obtain the optimized ohmic properties and transparency so as to uniformly disperse the injected current throughout the N type electrode.