Invention Grant
- Patent Title: Light emitting diode having a current blocking layer
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Application No.: US16068557Application Date: 2017-01-06
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Publication No.: US10541351B2Publication Date: 2020-01-21
- Inventor: Hyun Don Song
- Applicant: LG INNOTEK CO., LTD.
- Applicant Address: KR Seoul
- Assignee: LG INNOTEK CO., LTD.
- Current Assignee: LG INNOTEK CO., LTD.
- Current Assignee Address: KR Seoul
- Agency: KED & Associates, LLP
- Priority: KR10-2016-0001833 20160107
- International Application: PCT/KR2017/000179 WO 20170106
- International Announcement: WO2017/119754 WO 20170713
- Main IPC: H01L33/14
- IPC: H01L33/14 ; H01L33/32 ; H01L33/62 ; H01L33/36

Abstract:
A light emitting device according to embodiments includes a substrate, a light emitting structure disposed under the substrate and including a first conductive semiconductor layer, an active layer, and a second conductive semiconductor layer, a submount disposed to face the substrate, first and second metal pads disposed on the submount to be spaced apart from each other, a first bump disposed on the first metal pad, a plurality of second bumps disposed on the second metal pad to be spaced apart from each other, a first ohmic layer interposed between the first conductive semiconductor layer and the first bump, a second ohmic layer interposed between the second conductive semiconductor layer and the plurality of second bumps, a first spreading layer interposed between the first ohmic layer and the first bump, a second spreading layer interposed between the second ohmic layer and the plurality of second bumps, and a current blocking layer disposed in a maximum heating area of the second ohmic layer overlapping an area between the plurality of second bumps in a thickness direction of the light emitting structure such that the current blocking layer does not cut the second ohmic layer in a horizontal direction intersecting the thickness direction.
Public/Granted literature
- US20190027647A1 LIGHT EMITTING DIODE Public/Granted day:2019-01-24
Information query
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