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:
Oct. 13, 2009
Filed:
Jul. 16, 2004
Tae-kyung Yoo, Yongin-si, KR;
Joong-seo Park, Yongin-si, KR;
Chang-tae Kim, Seongnam-si, KR;
EpiValley Co., Ltd., Gyeonggi, KR;
Abstract
The present invention relates to a nitride semiconductor light emitting device including a plurality of nitride semi-conductor layers with a p-type nitride semiconductor formed using as nitrogen precursor ammonia together with hydrazine-based material which upon thermal decomposition generates a radical being combined with a hydrogen radical to eliminate the hydrogen radical, thereby eliminates the need for a subsequent annealing process for removing hydrogen and prevents the active layer from being thermally damaged due to the subsequent annealing process.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile