Light-emitting device substrate, light-emitting device, and method for manufacturing light-emitting device substrate
US9966522B2 · kind B2 · utility
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11Claims
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Key dates
| Filing date | Mar 24, 2015 |
| Grant date | May 8, 2018 |
| Priority date | — |
| Expiry date | Mar 24, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/857
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A substrate includes a base made of a metal material, a thermally conductive, light-reflective ceramic insulating layer, and a buffer layer formed between the base and the ceramic insulating layer and having a smaller linear expansion coefficient than the base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.