公开(公告)号：US20210249561A1

公开(公告)日：2021-08-12

申请号：US17179729

申请日：2021-02-19

Applicant: EPISTAR CORPORATION

Inventor： Chien Cheng HUANG ,  Kuo-Wei YEN ,  Yu-Wei KUO ,  Yao-Wei YANG ,  Pei-Hsiang TSENG

IPC: H01L33/14 ,  H01L33/42 ,  H01L33/44 ,  H01L33/38 ,  H01L33/00 ,  H01L33/24 ,  H01L33/32

Abstract: A light emitting device includes: a plurality of light emitting stacked layers, including a first surface and a second surface, wherein the second surface is electrically opposite to the first surface; a mesa structure; a current blocking layer disposed on the first surface, including a sidewall; and a transparent conductive layer disposed on the first surface; and a first pad electrode, disposed on the transparent conductive layer and on the first surface; wherein a retract distance of the transparent conductive layer with respect to an edge of the mesa structure is less than 3 μm; and wherein a retract distance of the transparent conductive layer with respect to an edge of the sidewall of the current blocking layer is less than 3 μm.