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:
Jan. 11, 2011
Filed:
Sep. 08, 2006
Pil Geun Kang, Suwon, KR;
Bong IL Yi, Suwon, KR;
Jae Ho Han, Daejeon, KR;
Dong Min Jeon, Suwon, KR;
Samsung LED Co., Ltd., Gyunggi-Do, KR;
Abstract
A nitride semiconductor LED comprises a substrate; an n-type nitride semiconductor layer formed on the substrate; an active layer formed on a predetermined region of the n-type nitride semiconductor layer; a p-type nitride semiconductor layer formed on the active layer; a p-electrode formed on the p-type nitride semiconductor layer; and an n-electrode formed on the n-type nitride semiconductor layer in which the active layer is not formed. The p-electrode and n-electrode are formed to have such a multilayer structure that an ohmic contact layer, a compound layer containing aluminum or silver, and a degradation preventing layer are sequentially laminated.