Invention Grant
- Patent Title: Light-emitting diode chip with current spreading layer
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Application No.: US14830616Application Date: 2015-08-19
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Publication No.: US09853188B2Publication Date: 2017-12-26
- Inventor: Petrus Sundgren , Elmar Baur , Martin Hohenadler , Clemens Hofmann
- Applicant: OSRAM Opto Semiconductors GmbH
- Applicant Address: DE Regensburg
- Assignee: OSRAM OPTO SEMICONDUCTORS GMBH
- Current Assignee: OSRAM OPTO SEMICONDUCTORS GMBH
- Current Assignee Address: DE Regensburg
- Agency: Slater Matsil, LLP
- Priority: DE102010014667 20100412
- Main IPC: H01L33/02
- IPC: H01L33/02 ; H01L33/14 ; H01L33/60 ; H01L33/48 ; H01L33/30 ; H01L31/112 ; H01L33/38 ; H01L33/40

Abstract:
A light-emitting diode chip includes a semiconductor layer sequence having a phosphide compound semiconductor material. The semiconductor layer sequence contains a p-type semiconductor region, an n-type semiconductor region, and an active layer arranged between the p-type semiconductor region and the n-type semiconductor region. The active region serves to emit electromagnetic radiation. The n-type semiconductor region faces a radiation exit area of the light-emitting diode chip, and the p-type semiconductor region faces a carrier of the light-emitting diode chip. A current spreading layer having a thickness of less than 500 nm is arranged between the carrier and the p-type semiconductor region. The current spreading layer has one or a plurality of p-doped AlxGa1-xAs layers with 0.5
Public/Granted literature
- US20150357516A1 Light-Emitting Diode Chip with Current Spreading Layer Public/Granted day:2015-12-10
Information query
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