Light emitting diode optical emitter with transparent electrical connectors
US8889440B2 · kind B2 · utility
9Cited by
14References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2013 |
| Grant date | Nov 18, 2014 |
| Priority date | — |
| Expiry date | Dec 11, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/857
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
An optical emitter includes a Light-Emitting Diode (LED) on a package wafer, transparent insulators, and one or more transparent electrical connectors between the LED die and one or more contact pads on the packaging wafer. The transparent insulators are deposited on the package wafer with LED dies attached using a lithography or a screen printing method. The transparent electrical connectors are deposited using physical vapor deposition, chemical vapor deposition, spin coating, spray coating, or screen printing and may be patterned using a lithography process and etching.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.