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. 22, 2003
Filed:
Oct. 06, 2000
Epistar Corporation, Hsin-Chu, TW;
Abstract
A high brightness light emitting diode having a distributed contact area comprising a first electrode; a semiconductor substrate formed on the first electrode; a first cladding layer of a first conductivity type formed on the semiconductor substrate; an active layer formed on the first cladding layer; a second cladding layer of a second conductivity type formed on the active layer; a window layer of a second conductivity type formed on the second cladding layer; a distributed contact area in a predetermined pattern formed on the window layer; a transparent conductive layer formed over the distributed contact area and the window layer, the transparent conductive layer being in ohmic contact with the distributed contact area and a Shottky barrier being formed between the transparent conductive layer and the window layer; and a second electrode formed on the transparent conductive layer.