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

III-nitride light emitting device with reduced strain light emitting layer
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.
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