Light-emitting device
US10784404B2 · kind B2 · utility
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1References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2019 |
| Grant date | Sep 22, 2020 |
| Priority date | — |
| Expiry date | Apr 29, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/824
Abstract
A light-emitting device, includes a substrate structure, including a base portion having a surface and a plurality of protrusions formed on the base portion; a buffer layer covering the plurality of protrusions and the surface; and III-V compound semiconductor layers formed on the buffer layer; wherein one of the plurality of protrusions has a height not greater than 1.5 μm; wherein the light-emitting device has a full width at half maximum (FWHM) of smaller than 250 arcsec in accordance with a (102) XRD rocking curve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.