公开(公告)号：US20180069157A1

公开(公告)日：2018-03-08

申请号：US15796241

申请日：2017-10-27

Applicant: EPISTAR CORPORATION

Inventor： Chih-Chiang LU ,  Yi-Chieh LIN ,  Rong-Ren LEE ,  Yu-Ren PENG ,  Ming-Siang HUANG ,  Ming-Ta CHIN ,  Yi-Ching LEE

IPC: H01L33/46 ,  H01L25/075 ,  H01L33/60

CPC classification number: H01L33/46 ,  H01L25/0753 ,  H01L33/04 ,  H01L33/10 ,  H01L33/60

Abstract: A light-emitting device is provided. comprises: a light-emitting stack comprising an active layer emitting a first light having a first peak wavelength λ nm; and an adjusting element stacked on and electrically connected to the active layer, wherein the adjusting element comprises a diode emitting a second light having a second peak wavelength between 800 nm and 1900 nm; wherein a forward voltage of the light-emitting device is between (1240/0.8λ) volt and (1240/0.5λ) volt, and a ratio of the intensity of the first light emitted from the active layer at the first peak wavelength to the intensity of the second light emitted from the diode at the second peak wavelength is greater than 10 and not greater than 1000.

公开(公告)号：US20180269358A1

公开(公告)日：2018-09-20

申请号：US15983964

申请日：2018-05-18

Applicant: EPISTAR CORPORATION

Inventor： Chih-Chiang LU ,  Yi-Chieh LIN ,  Rong-Ren LEE ,  Yu-Ren PENG ,  Ming-Siang HUANG ,  Ming-Ta CHIN ,  Yi-Ching LEE

IPC: H01L33/46 ,  H01L33/10 ,  H01L33/04 ,  H01L33/60 ,  H01L25/075

CPC classification number: H01L33/46 ,  H01L25/0753 ,  H01L33/04 ,  H01L33/10 ,  H01L33/60

Abstract: A light-emitting device includes: a light-emitting stack including a first active layer emitting a first light having a first peak wavelength; a diode emitting a second light having a second peak wavelength between 800 nm and 1900 nm; and a tunneling junction between the diode and the light-emitting stack, wherein the tunneling junction includes a first tunneling layer and a second tunneling layer on the first tunneling layer, the first tunneling layer has a band gap and a thickness of the first tunneling layer is greater than a thickness of the second tunneling layer.

公开(公告)号：US20230058195A1

公开(公告)日：2023-02-23

申请号：US17892814

申请日：2022-08-22

Applicant: EPISTAR CORPORATION

Inventor： Shih-Nan YEN ,  Ming-Ta CHIN ,  Yi-Ching LEE ,  Cheng-Long YEH

IPC: H01L33/30 ,  H01L33/06 ,  H01L33/22

Abstract: A semiconductor device is provided, which includes a first semiconductor structure, a second semiconductor structure, and an active region. The first semiconductor structure includes a first semiconductor layer which includes a first dopant and a second dopant. The second semiconductor structure is located on the first semiconductor structure and includes the first dopan. The active region is located between the first semiconductor structure and the second semiconductor structure and includes the first dopant. The first dopant and the second dopant have different conductivity types.

公开(公告)号：US20230163239A1

公开(公告)日：2023-05-25

申请号：US18099583

申请日：2023-01-20

Applicant: EPISTAR CORPORATION

Inventor： Yen-Chun TSENG ,  Kuo-Feng HUANG ,  Shih-Chang LEE ,  Ming-Ta CHIN ,  Shih-Nan YEN ,  Cheng-Hsing CHIANG ,  Chia-Hung LIN ,  Cheng-Long YEH ,  Yi-Ching LEE ,  Jui-Che SUNG ,  Shih-Hao CHENG

IPC: H01L33/14 ,  H01L33/08 ,  H01L33/20 ,  H01L33/02

CPC classification number: H01L33/14 ,  H01L33/08 ,  H01L33/20 ,  H01L33/025

Abstract: A semiconductor device is provided, which includes a first semiconductor structure, a second semiconductor structure, and an active region. The first semiconductor structure includes a first dopant. The second semiconductor structure is located on the first semiconductor structure and includes a second dopant different from the first dopant. The active region includes a plurality of semiconductor pairs and located between the first semiconductor structure and the second semiconductor structure. Each semiconductor pair includes a barrier layer and a well layer and includes the first dopant. The active region does not include a nitrogen element. A doping concentration of the first dopant in the first semiconductor structure is higher than a doping concentration of the first dopant in the active region.

公开(公告)号：US20170263820A1

公开(公告)日：2017-09-14

申请号：US15066095

申请日：2016-03-10

Applicant: EPISTAR CORPORATION

Inventor： Chih-Chiang LU ,  Yi-Chieh LIN ,  Rong-Ren LEE ,  Yu-Ren PENG ,  Ming-Siang HUANG ,  Ming-Ta CHIN ,  Yi-Ching LEE

IPC: H01L33/46 ,  H01L25/075 ,  H01L33/60

CPC classification number: H01L33/46 ,  H01L25/0753 ,  H01L33/04 ,  H01L33/10 ,  H01L33/60

Abstract: A light-emitting device is provided. The light-emitting device comprises: a light-emitting stack having an active layer emitting first light having a peak wavelength λ nm; and an adjusting element stacked electrically connected to the active layer in series for tuning a forward voltage of the light-emitting device; wherein the forward voltage of the light-emitting device is between (1240/0.8λ) volt and (1240/0.5λ) volt.