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:
Aug. 07, 2018
Filed:
Mar. 29, 2016
Seoul Viosys Co., Ltd., Ansan-si, KR;
Ki Yon Park, Ansan-si, KR;
Jeong Hun Heo, Ansan-si, KR;
Yu Dae Han, Ansan-si, KR;
Gun Woo Han, Ansan-si, KR;
Seoul Viosys Co., Ltd., Ansan-si, KR;
Abstract
Disclosed herein is a UV light emitting diode. The UV light emitting diode includes a first conductive type semiconductor layer; a first stress adjustment layer disposed on the first conductive type semiconductor layer, and including a first nitride layer including Al and a second nitride layer disposed on the first nitride layer and having a lower Al composition ratio than the first nitride layer; an active layer disposed on the first stress adjustment layer; and a second conductive type semiconductor layer disposed on the active layer, wherein the first stress adjustment layer includes an Al delta layer inserted in the first nitride layer, and a lower surface of the first nitride layer in which the Al delta layer is inserted has greater average tensile stress than a lower surface of the second nitride layer directly disposed on the first nitride layer.