Method of producing metallic microscale cold cathodes
US5389026A · kind A · utility
13Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 1993 |
| Grant date | Feb 14, 1995 |
| Priority date | — |
| Expiry date | Jun 28, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2209/0226
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Microscale cold cathodes include a metallic emitter tip with a very sharp end. The microscale cold cathodes are manufactured by forming a cone of metal on a substrate, oxidizing the surface of the cone, and removing the oxidized film from the cone surface to produce an emitter tip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.