Invention Grant
- Patent Title: Light-emitting diode chip with one of a mirror layer and an adhesion-promoting layer for high efficiency and long service life
-
Application No.: US15769996Application Date: 2016-10-19
-
Publication No.: US10283676B2Publication Date: 2019-05-07
- Inventor: Johannes Baur
- Applicant: OSRAM Opto Semiconductors GmbH
- Applicant Address: DE
- Assignee: OSRAM Opto Semiconductors GmbH
- Current Assignee: OSRAM Opto Semiconductors GmbH
- Current Assignee Address: DE
- Agency: DLA Piper LLP (US)
- Priority: DE102015118041 20151022
- International Application: PCT/EP2016/075092 WO 20161019
- International Announcement: WO2017/067983 WO 20170427
- Main IPC: H01L33/44
- IPC: H01L33/44 ; H01L33/30 ; H01L33/38 ; H01L33/40 ; H01L33/46 ; H01L33/00 ; H01L33/14 ; H01L33/20 ; H01L33/42

Abstract:
A light-emitting diode chip includes a semiconductor layer sequence based on InGaAlAsP and generates visible light or near-infrared radiation, a current spreading layer located directly on the semiconductor layer sequence and based on AlGaAs, an encapsulation layer applied directly to at least one of the current spreading layer and the semiconductor layer sequence and has an average thickness of 10 nm to 200 nm and a defect density of at most 10/mm2, at least one cover layer applied directly to the encapsulation layer at least in places, at least one non-metallic reflection layer located in places on a side of the current spreading layer facing away from the semiconductor layer sequence and covered in places by the encapsulation layer, and at least one of a mirror layer and an adhesion-promoting layer arranged in places on a side of the reflection layer facing away from the current spreading layers.
Public/Granted literature
- US20180301598A1 LIGHT-EMITTING DIODE CHIP AND METHOD OF PRODUCING A LIGHT-EMITTING DIODE CHIP Public/Granted day:2018-10-18
Information query
IPC分类: