Light emitting device having an ohmic layer with a plurality of protruding contact portions
US8994058B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2014 |
| Grant date | Mar 31, 2015 |
| Priority date | — |
| Expiry date | Jan 29, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H29/142
Abstract
Disclosed is a light emitting device including a conductive substrate, a first electrode layer disposed on the conductive substrate, a light emitting structure disposed on the first electrode layer, the light emitting structure including a first semiconductor layer, a second semiconductor layer, and an active layer disposed between the first semiconductor layer and the second semiconductor layer, and a second electrode layer electrically connected to the second semiconductor layer, wherein the first electrode layer includes a transparent electrode layer disposed between the conductive substrate and the first semiconductor layer, and an ohmic layer comprising a plurality of metal contact portions vertically passing through the transparent electrode layer, wherein each metal contact portion includes AuBe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.