Thin film light emitting diode
US6841802B2 · kind B2 · utility
55Cited by
4References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 26, 2002 |
| Grant date | Jan 11, 2005 |
| Priority date | — |
| Expiry date | Jun 26, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/181
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
Light emitting LEDs devices comprised of LED chips that emit light at a first wavelength, and a thin film layer over the LED chip that changes the color of the emitted light. For example, a blue LED chip can be used to produce white light. The thin film layer beneficially consists of a florescent material, such as a phosphor, and/or includes tin. The thin film layer is beneficially deposited using chemical vapor deposition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.