Ultraviolet light emitting element and light emitting element package including the same
US11682747B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2021 |
| Grant date | Jun 20, 2023 |
| Priority date | — |
| Expiry date | Jun 17, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/825
Abstract
An embodiment discloses an ultraviolet light emitting element including: a light emitting structure including a first conductive semiconductor layer, a second conductive semiconductor layer, an active layer disposed between the first conductive semiconductor layer and the second conductive semiconductor layer, and an etched region in which the first conductive semiconductor layer is exposed; a first insulating layer disposed on the light emitting structure and including a first hole which exposes a portion of the etched region; a first electrode electrically connected to the first conductive semiconductor layer; and a second electrode electrically connected to the second conductive semiconductor layer, wherein the light emitting structure includes an intermediate layer regrown on the first conductive semiconductor layer exposed in the first hole, the first electrode is disposed on the intermediate layer, the etched region includes a first etched region disposed at an inner side and a second etched region disposed at an outer side based on an outer side surface of the first electrode, and a ratio of an area of the first etched region and an area of the intermediate layer is 1:0.3 to…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.