Electron field emitters comprising particles cooled with low voltage emitting material
US5623180A · kind A · utility
31Cited by
13References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 1994 |
| Grant date | Apr 22, 1997 |
| Priority date | — |
| Expiry date | Oct 31, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2201/30457
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides methods and apparatus for making enhanced field emitters by coating particulate substrates with low voltage emissive material such as defect-rich diamond. These methods permit the advantageous, low-cost combination of low voltage emission with sharp-featured geometry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.