Invention Grant
- Patent Title: LED chip
- Patent Title (中): LED芯片
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Application No.: US12922830Application Date: 2009-04-28
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Publication No.: US08530923B2Publication Date: 2013-09-10
- Inventor: Matthias Sabathil , Lutz Hoeppel , Andreas Weimar , Karl Engl , Johannes Baur
- Applicant: Matthias Sabathil , Lutz Hoeppel , Andreas Weimar , Karl Engl , Johannes Baur
- Applicant Address: DE Regensburg
- Assignee: OSRAM Opto Semiconductor GmbH
- Current Assignee: OSRAM Opto Semiconductor GmbH
- Current Assignee Address: DE Regensburg
- Agency: Cozen O'Connor
- Priority: DE102008021675 20080430; DE102008035900 20080731
- International Application: PCT/DE2009/000629 WO 20090428
- International Announcement: WO2009/132641 WO 20091105
- Main IPC: H01L33/38
- IPC: H01L33/38

Abstract:
A light-emitting diode chip (1) with a semiconductor layer sequence (2) is described, which is contacted electrically by contacts (5) via a current spreading layer (3). The contacts (5) cover around 1%-8% of the surface of the semiconductor layer sequence (2). The contacts (5) consist for example of separate contact points (51), which are arranged at the nodes of a regular grid (52) with a grid constant of 12 μm. The current spreading layer (3) contains for example indium-tin oxide, indium-zinc oxide or zinc oxide and has a thickness in the range from 15 nm to 60 nm.
Public/Granted literature
- US20110114988A1 Led Chip Public/Granted day:2011-05-19
Information query
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