Package for light emitting element accommodation containing a substrate and a frame body, the frame body containing alumina and barium
US8450761B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2011 |
| Grant date | May 28, 2013 |
| Priority date | — |
| Expiry date | Oct 11, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/8506
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
To provide a package for light emitting element accommodation that realizes enhanced reflectance without application of a metal plating onto a ceramic. There is provided a package for light emitting element accommodation comprising ceramic substrate (2) having conductor mounting region (8) for mounting of light emitting element (1) on its upper surface; frame (4) of a light reflecting material containing 74.6 mass % or more of alumina whose average particle diameter after sintering is 2.5 μm or less, the frame (4) disposed on an upper surface of the substrate (2) in such a fashion that internal circumferential surface (7) of through-hole (3) expands outward; and light emitting element (1) mounted on the conductor mounting region (8) of the substrate (2). Thus, the reflectance of the frame (4) is enhanced without application of a metal plating thereonto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.