Light-emitting device substrate, light-emitting device, and method for producing light-emitting device substrate
US10121951B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 2014 |
| Grant date | Nov 6, 2018 |
| Priority date | — |
| Expiry date | Nov 12, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/0365
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
In a light-emitting device substrate (2), a light reflecting surface covered with an anodized aluminum layer (12) is formed on one side of a base (14), and a glass-based insulator layer (11) and electrode patterns (5⋅6) disposed on the first insulating layer (11) are formed on the one side of the base (14) in a region not covered with the anodized aluminum layer (12). A glass-based insulator layer (13) is formed at least on the other side of the base (14) that is opposite the one side of the base (14). Therefore, a light-emitting device substrate having high reflectivity, high heat dissipation capability, dielectric withstand capability, and long-term reliability and excellent in mass productivity can be realized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.