ULTRAVIOLET LIGHT-EMITTING DEVICE AND LIGHT-EMITTING DEVICE PACKAGE COMPRISING SAME

Title:

ULTRAVIOLET LIGHT-EMITTING DEVICE AND LIGHT-EMITTING DEVICE PACKAGE COMPRISING SAME

Document Type and Number:

WIPO Patent Application WO/2022/050510

Kind Code:

A1

Abstract:

One embodiment discloses an ultraviolet light-emitting device and a light-emitting device package comprising same, the ultraviolet light-emitting device comprising: a light-emitting structure comprising a first conductive semiconductor layer, a second conductive semiconductor layer, an active layer disposed between the first conductive semiconductor layer and the second conductive semiconductor layer, and an etched region where the first conductive semiconductor layer is exposed; a first insulating layer disposed on the light-emitting structure and comprising a first hole for exposing a portion of the etched region; a first electrode electrically connected to the first conductive semiconductor layer; and a second electrode electrically connected to the second conductive semiconductor layer, wherein the light-emitting structure comprises an intermediate layer regrown on the portion of the first conductive semiconductor layer exposed through the first hole, the first electrode is disposed on the intermediate layer, the etched region comprises a first etched region disposed on the inner side and a second etched region disposed on the outer side, with respect to the outer surface of the first electrode, and the ratio of the area of the first etched region to the area of the intermediate layer is 1:0.3 to 1:0.7.

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Inventors:

SUNG YOUN JOON (KR)
OH SEUNG KYU (KR)
SO JAE BONG (KR)
LEE GIL JUN (KR)
KIM WON HO (KR)
KWON TAE WAN (KR)
OH ERIC (KR)
CHOI IL GYUN (KR)
JUNG JIN YOUNG (KR)

Application Number:

PCT/KR2020/017786

Publication Date:

March 10, 2022

Filing Date:

December 07, 2020

Export Citation:

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Assignee:

PHOTON WAVE CO LTD (KR)

International Classes:

H01L33/20; H01L23/498; H01L23/528; H01L25/075; H01L33/36; H01L33/38; H01L33/48

Foreign References:

KR20190018325A	2019-02-22
JP2016526801A	2016-09-05
JP2012169332A	2012-09-06
KR20160103687A	2016-09-02
KR20200065872A	2020-06-09

Attorney, Agent or Firm:

DANA PATENT LAW FIRM (KR)

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