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:
Nov. 19, 2019
Filed:
Aug. 01, 2018
Samsung Electronics Co., Ltd., Suwon-si, KR;
SAMSUNG ELECTRONICS CO., LTD., Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, KR;
Abstract
An embodiment of the present inventive concept provides an ultraviolet light emitting device comprising: a substrate having a concave or convex edge pattern disposed along an edge of an upper surface thereof; a semiconductor laminate disposed on the substrate and including first and second conductivity-type AlGaN semiconductor layers and an active layer disposed between the first and second conductivity-type AlGaN semiconductor layers and having an AlGaN semiconductor; a plurality of uneven portions extending from the edge pattern along the side surface of the semiconductor laminate in a stacking direction; and first and second electrodes connected to the first and second conductivity-type AlGaN semiconductor layers, respectively.