Large scale stable field emitter for high current applications
US12249477B2 · kind B2 · utility
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22References
20Claims
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Key dates
| Filing date | Apr 1, 2024 |
| Grant date | Mar 11, 2025 |
| Priority date | — |
| Expiry date | Apr 1, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2235/062
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention relates to large area field emission devices based on the incorporation of macroscopic, microscopic, and nanoscopic field enhancement features and a designed forced current sharing matrix layer to enable a stable high-current density long-life field emission device. The present invention pertains to a wide range of field emission sources and is not limited to a specific field emission technology. The invention is described as an X-ray electron source but can be applied to any application requiring a high current density electron source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.