Light-Emitting Diode with Embedded Elements
AssigneeTSMC Solid State Lighting Ltd.
InventorsDing-Yuan Chen, Wen-Chih Chiou, Chen-Hua Yu
Life of this patent
Estimating the term…
Abstract
A light-emitting diode (LED) device is provided. The LED device has a substrate and an LED structure overlying the substrate. Embedded elements are embedded within one or more layers of the LED structure. In an embodiment, the embedded elements include a dielectric material extending through the LED structure such that the embedded elements are surrounded by the LED structure. In another embodiment, the embedded elements only extend through an upper layer of the LED structure, or alternatively, partially through the upper layer of the LED structure. Another conductive layer may be formed over the upper layer of the LED structure and the embedded elements.
Claims20
A light-emitting diode (LED) device comprising:
- a substrate;
- an LED structure formed over the substrate, the LED structure having a lower LED layer, an active layer, and a first upper LED layer;
- and
- embedded elements extending at least partially through the first upper LED layer of the LED structure, from a plan view the embedded elements being surrounded by the LED structure, the embedded elements having a refractive index different than the first upper LED layer.
A light-emitting diode (LED) device comprising:
- a substrate;
- and
- an LED structure over the substrate, the LED structure having embedded elements within at least a first conductive layer, the embedded elements having a refractive index different than a layer of the LED structure in which the embedded elements are embedded.
A method of forming a light-emitting diode (LED), the method comprising:
- providing a substrate;
- forming an LED structure over the substrate, the LED structure including a lower LED layer, an active layer, and a first upper LED layer;
- and
- forming a plurality of embedded elements that, when viewed in a plan view, are surrounded by the LED structure, the plurality of embedded elements having a different refractive index than the LED structure.
Dependencies are inferred from the claim text.