Invention Grant
- Patent Title: Method of manufacturing light emitting diodes and light emitting diode
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Application No.: US16493499Application Date: 2018-03-13
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Publication No.: US11276800B2Publication Date: 2022-03-15
- Inventor: Bastian Galler , Jürgen Off
- Applicant: OSRAM OLED GMBH
- Applicant Address: DE Regensburg
- Assignee: OSRAM OLED GMBH
- Current Assignee: OSRAM OLED GMBH
- Current Assignee Address: DE Regensburg
- Agency: Slater Matsil, LLP
- Priority: DE102017105397.2 20170314
- International Application: PCT/EP2018/056158 WO 20180313
- International Announcement: WO2018/167011 WO 20180920
- Main IPC: H01L33/10
- IPC: H01L33/10 ; H01L33/00 ; H01L33/02 ; H01L33/06 ; H01L33/22 ; H01L33/32 ; H01L33/42 ; G01N21/33

Abstract:
A method for manufacturing light emitting diodes and a light emitting diode are disclosed. In an embodiment a method includes growing an n-conductive n-layer, growing an active zone for generating ultraviolet radiation, growing a p-conductive p-layer, producing a p-type semiconductor contact layer having a varying thickness and having a plurality of thickness maxima directly on the p-type layer and applying an ohmic-conductive electrode layer directly on the semiconductor contact layer, wherein each the n-layer and the active zone is based on AlGaN, the p-layer is based on AlGaN or InGaN and the semiconductor contact layer is a GaN layer, wherein the thickness maxima have an area concentration of at least 104 cm−2 in a top view, and wherein the p-layer is only partially covered by the semiconductor contact layer in the top view.
Public/Granted literature
- US20200035858A1 Method of Manufacturing Light Emitting Diodes and Light Emitting Diode Public/Granted day:2020-01-30
Information query
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