Invention Grant
- Patent Title: Semiconductor light emitting device growing active layer on textured surface
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Application No.: US15897564Application Date: 2018-02-15
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Publication No.: US10312404B2Publication Date: 2019-06-04
- Inventor: Sungsoo Yi , Nathan F. Gardner , Michael R. Krames , Linda T. Romano
- Applicant: Lumileds LLC
- Applicant Address: US CA San Jose
- Assignee: LUMILEDS LLC
- Current Assignee: LUMILEDS LLC
- Current Assignee Address: US CA San Jose
- Agency: Volpe and Koenig, P.C.
- Main IPC: H01L33/00
- IPC: H01L33/00 ; H01L33/08 ; H01L33/12 ; H01L33/22

Abstract:
In accordance with embodiments of the invention, at least partial strain relief in a light emitting layer of a III-nitride light emitting device is provided by configuring the surface on which at least one layer of the device grows such that the layer expands laterally and thus at least partially relaxes. This layer is referred to as the strain-relieved layer. In some embodiments, the light emitting layer itself is the strain-relieved layer, meaning that the light emitting layer is grown on a surface that allows the light emitting layer to expand laterally to relieve strain. In some embodiments, a layer grown before the light emitting layer is the strain-relieved layer. In a first group of embodiments, the strain-relieved layer is grown on a textured surface.
Public/Granted literature
- US20180175236A1 SEMICONDUCTOR LIGHT EMITTING DEVICE GROWING ACTIVE LAYER ON TEXTURED SURFACE Public/Granted day:2018-06-21
Information query
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