公开(公告)号：US09825088B2

公开(公告)日：2017-11-21

申请号：US14808295

申请日：2015-07-24

Applicant: EPISTAR CORPORATION

Inventor： Shao-Ping Lu ,  Yi-Ming Chen ,  Yu-Ren Peng ,  Chun-Yu Lin ,  Chun-Fu Tsai ,  Tzu-Chieh Hsu

IPC: H01L29/06 ,  H01L31/00 ,  H01L27/15 ,  H01L33/00 ,  H01L33/08

CPC classification number: H01L27/153 ,  H01L33/005 ,  H01L33/08

Abstract: A light-emitting device comprises a carrier; and a first semiconductor element comprising a first semiconductor structure and a second semiconductor structure, wherein the second semiconductor structure is closer to the carrier than the first semiconductor structure is to the carrier, the first semiconductor structure comprises a first MQW structure configured to emit a first light having a first dominant wavelength during normal operation, and the second semiconductor structure comprises a second MQW structure configured not to emit light during normal operation.

公开(公告)号：USD894850S1

公开(公告)日：2020-09-01

申请号：US29673162

申请日：2018-12-12

Applicant: EPISTAR CORPORATION

Designer： Chun-Fu Tsai ,  Yao-Ning Chan ,  Yi-Tang Lai ,  Yi-Ming Chen ,  Shih-Chang Lee

公开(公告)号：US10461223B2

公开(公告)日：2019-10-29

申请号：US16128604

申请日：2018-09-12

Applicant: EPISTAR CORPORATION

Inventor： Yung-Fu Chang ,  Hsin-Chan Chung ,  Hung-Ta Cheng ,  Wen-Luh Liao ,  Shih-Chang Lee ,  Chih-Chiang Lu ,  Yi-Ming Chen ,  Yao-Ning Chan ,  Chun-Fu Tsai

IPC: H01L33/38 ,  H01L33/30

Abstract: A semiconductor device includes a semiconductor stack comprising a surface, and an electrode structure comprises an electrode pad formed on the surface, and the electrode structure further comprises a first extending electrode, a second extending electrode and a third extending electrode connecting to the electrode pad. The first extending electrode is closer to a periphery of the surface than the third extending electrode is, and the second extending electrode is between the first extending electrode and the third extending electrode. From a top view of the semiconductor device, the first extending electrode, the second extending electrode and the third extending electrode respectively include a first curve having a first angle θ1, a second curve having a second angle θ2 and a third curve having a third angle θ3, wherein θ3>θ2>θ1 .