Field emission devices and methods of manufacturing emitters thereof
US9396901B2 · kind B2 · utility
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2References
5Claims
0Family size
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Key dates
| Filing date | Sep 1, 2014 |
| Grant date | Jul 19, 2016 |
| Priority date | — |
| Expiry date | Sep 1, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2201/30461
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A field emission device may comprise: an emitter comprising a cathode electrode and an electron emission source supported by the cathode electrode; an insulating spacer around the emitter, the insulating spacer forming an opening that is a path of electrons emitted from the electron emission source; and/or a gate electrode around the opening. The electron emission source may comprise a plurality of graphene thin films vertically supported in the cathode electrode toward the opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.