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US 8,263,988 B2Granted
Solid state lighting devices with reduced crystal lattice dislocations and associated methods of manufacturing
AssigneeMicron Technology, Inc.
InventorsCem Basceri, Thomas Gehrke
Life of this patent
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Abstract
Solid state lighting devices and associated methods of manufacturing are disclosed herein. In one embodiment, a solid state lighting device includes a substrate material having a substrate surface and a plurality of hemispherical grained silicon (“HSG”) structures on the substrate surface of the substrate material. The solid state lighting device also includes a semiconductor material on the substrate material, at least a portion of which is between the plurality of HSG structures.
Claims15
A light emitting diode, comprising:
- a substrate material having a substrate surface;
- a plurality of hemispherical grained silicon (HSG) structures in direct contact with the substrate surface of the substrate material, the HSG structures having a base proximate the substrate surface of the substrate material, an apex spaced apart from the base, and a side surface between the base and the apex;
- a semiconductor material on the substrate material and substantially encapsulating the plurality of HSG structures;
- and
- an active region proximate the semiconductor surface of the semiconductor material, the active region including gallium nitride (GaN)/indium gallium nitride (InGaN) multiple quantum wells.
2 more elements
A solid state lighting device, comprising:
- a substrate material having a substrate surface;
- a plurality of hemispherical grained silicon (HSG) structures on the substrate surface of the substrate material;
- a semiconductor material on the substrate material, at least a portion of the semiconductor material being between the plurality of HSG structures;
- and
- an active region proximate the semiconductor surface of the semiconductor material, the active region being configured to emit a light in response to an applied electrical voltage.
2 more elements
Dependencies are inferred from the claim text.