公开(公告)号：US09705040B2

公开(公告)日：2017-07-11

申请号：US14939817

申请日：2015-11-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jong-hoon Ha ,  Sang-yeob Song ,  Gi-bum Kim ,  Jae-in Sim ,  Seung-woo Choi

IPC: H01L33/38 ,  H01L33/20 ,  H01L33/40 ,  H01L33/42

CPC classification number: H01L33/38 ,  H01L33/20 ,  H01L33/405 ,  H01L33/42 ,  H01L2933/0016

Abstract: A light-emitting device includes: a substrate; a light-emitting structure including first and second nitride-based semiconductor layers on the substrate and an active layer between the first and second nitride-based semiconductor layers; an insulating layer on a top surface of the light-emitting structure; a protrusion on the insulating layer, a top surface of the protrusion being larger than a bottom surface thereof, the protrusion having a trapezoidal cross-section; a transparent conductive layer covering a top surface of the light-emitting structure, a top surface of the insulating layer, and the top surface of the protrusion and having a constant thickness along the top surface of the light-emitting structure, the top surface of the insulating layer, and the top surface of the protrusion; and an electrode covering at least one of inclined surfaces of the protrusion on the transparent conductive layer.