Manufacturing method
US10957674B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 2, 2019 |
| Grant date | Mar 23, 2021 |
| Priority date | — |
| Expiry date | Dec 2, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/857
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A manufacturing method is provided. The manufacturing method includes the following steps. Firstly, a substrate and a light-emitting component are provided, wherein the light-emitting component is disposed on the substrate. Then, a wavelength conversion layer is provided, wherein the wavelength conversion layer includes a high-density phosphor layer and a low-density phosphor layer. Then, the high-density phosphor layer is adhered to the light-emitting component by an adhesive. Then, a reflective layer is formed above the substrate, wherein the reflective layer covers a lateral surface of the light-emitting component, a lateral surface of the adhesive and a lateral surface of the wavelength conversion layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.