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:
May. 22, 2012
Filed:
Nov. 23, 2009
Won Cheol Seo, Ansan-si, KR;
Kwang Choong Kim, Ansan-si, KR;
Kyung Hee YE, Ansan-si, KR;
Seoul Opto Device Co., Ltd., Ansan-si, KR;
Abstract
Disclosed are a light emitting device having a plurality of non-polar light emitting cells and a method of fabricating the same. This method comprises preparing a first substrate of sapphire or silicon carbide having an upper surface with an r-plane, an a-plane or an m-plane. The first substrate has stripe-shaped anti-growth patterns on the upper surface thereof, and recess regions having sidewalls of a c-plane between the anti-growth patterns. Nitride semiconductor layers are grown on the substrate having the recess regions, and the nitride semiconductor layers are patterned to form the light emitting cells separated from one another. Accordingly, there is provided a light emitting device having non-polar light emitting cells with excellent crystal quality.