Invention Grant
US07663148B2 III-nitride light emitting device with reduced strain light emitting layer
有权
具有减小的应变发光层的III族氮化物发光器件
- Patent Title: III-nitride light emitting device with reduced strain light emitting layer
- Patent Title (中): 具有减小的应变发光层的III族氮化物发光器件
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Application No.: US11615479Application Date: 2006-12-22
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Publication No.: US07663148B2Publication Date: 2010-02-16
- Inventor: Sungsoo Yi , Aurelien J. F. David , Nathan F. Gardner , Michael R. Krames , Linda T. Romano
- Applicant: Sungsoo Yi , Aurelien J. F. David , Nathan F. Gardner , Michael R. Krames , Linda T. Romano
- Applicant Address: US CA San Jose
- Assignee: Philips Lumileds Lighting Company, LLC
- Current Assignee: Philips Lumileds Lighting Company, LLC
- Current Assignee Address: US CA San Jose
- Agency: Patent Law Group
- Main IPC: H01L33/00
- IPC: H01L33/00

Abstract:
In accordance with embodiments of the invention, strain is reduced in the light emitting layer of a III-nitride device by including a strain-relieved layer in the device. The surface on which the strain-relieved layer is grown is configured such that strain-relieved layer can expand laterally and at least partially relax. In some embodiments of the invention, the strain-relieved layer is grown over a textured semiconductor layer or a mask layer. In some embodiments of the invention, the strain-relieved layer is group of posts of semiconductor material.
Public/Granted literature
- US20080149942A1 III-Nitride Light Emitting Device with Reduced Strain Light Emitting Layer Public/Granted day:2008-06-26
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