Light-emitting device
US10651344B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2019 |
| Grant date | May 12, 2020 |
| Priority date | — |
| Expiry date | Jan 14, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/825
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light-emitting device includes a semiconductor structure including a first semiconductor layer, a second semiconductor layer, and an active layer formed between the first semiconductor layer and the second semiconductor layer; a surrounding part surrounding the semiconductor structure and exposing a surface of the first semiconductor layer; a first insulating structure formed on the semiconductor structure, including a plurality of protrusions covering the surface of the first semiconductor layer and a plurality of recesses exposing the surface of the first semiconductor layer; a first contact portion formed on the surrounding part and contacting the surface of the first semiconductor layer by the plurality of recesses; a first pad formed on the semiconductor structure; and a second pad formed on the semiconductor structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.