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. 07, 2015
Filed:
Dec. 12, 2012
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Nam Sung Kim, Chungcheongnam-do, KR;
Dong Ik Shin, Gyeonggi-do, KR;
Hyun Wook Shim, Gyeonggi-do, KR;
Dong Joon Kim, Gyeonggi-do, KR;
Young Sun Kim, Gyeonggi-do, KR;
Jung Seung Yang, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Abstract
A semiconductor light emitting device includes first conductivity type and second conductivity type semiconductor layers, an active layer disposed between the semiconductor layers and having a structure in which one or more quantum well layers and one or more quantum barrier layers are alternately disposed An electron blocking layer is disposed between the active layer and the second conductivity type semiconductor layer. A capping layer is disposed between the active layer and the electron blocking layer and blocking a dopant element from being injected into the active layer from the second conductivity type semiconductor layer.