Electric discharge processing method for an electron tube using a field emission cold cathode device
US6380700B1 · kind B1 · utility
1Cited by
2References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 6, 2000 |
| Grant date | Apr 30, 2002 |
| Priority date | — |
| Expiry date | Apr 6, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J29/481
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides a method of carrying out an electric discharge processing to an electron tube having a field emission cold cathode device, wherein at least a high voltage electrode of the electron tube is maintained in a high voltage range, whilst all electrodes of the electron tube except for the at least high voltage electrode are maintained in a lower voltage range than the high voltage range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.