Methods of making multi-layer light emitting devices
AssigneeLuminus Devices, Inc.
InventorsAlexei A. Erchak, John W Graff, Michael Gregory Brown, Scott W. Duncan
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Abstract
Methods of making multi-layer light-emitting devices and related components and systems are disclosed. The light-emitting devices can include a layer of reflective material bonded with a layer of p-doped material. The reflective material can be capable of reflecting at least about 50% of light generated by a light-generating region that impinges on the layer of reflective material.
Claims38
A method of making a light-emitting device comprising a multi-layer stack of materials including a layer of p-doped material, a light-generating region, and a first layer, the method comprising:
- bonding the first layer with a substrate;
- subsequent to bonding the first layer with the substrate, bonding a layer of a reflective material with the layer of p-doped material, the multi-layer stack of materials being between the substrate and the layer of reflective material;
- and
- removing the substrate,
- wherein:
- the first layer includes a surface having a dielectric function that varies spatially according to a pattern;
- the reflective material is capable of reflecting at least about 50% of light generated by the light-generating region that impinges on the layer of reflective material;
- and
- the substrate is removed after bonding the layer of the reflective material with the layer of p-doped material.
A method of making a light-emitting device comprising a multi-layer stack of materials including a layer of p-doped material, a light-generating region, and a first layer, the first layer including a surface having a dielectric function that varies spatially according to a pattern, the method comprising:
- bonding the first layer with a substrate;
- subsequent to bonding the first layer with the substrate, bonding a layer of a reflective material with the layer of p-doped material, the multi-layer stack of materials being between the substrate and the layer of reflective material;
- removing the substrate;
- planarizing a surface of the first layer after the substrate is removed;
- and
- before forming the pattern in the surface of the first layer, planarizing the surface of the first layer,
- wherein the reflective material is capable of reflecting at least about 50% of light generated by the light-generating region that impinges on the layer of reflective material.
Dependencies are inferred from the claim text.