Triode cathode apparatus and method of making a triode cathode apparatus
US7880375B2 · kind B2 · utility
1Cited by
4References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2004 |
| Grant date | Feb 1, 2011 |
| Priority date | — |
| Expiry date | May 28, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J31/127
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A triode type cathode structure of an FED screen arranged in rows and columns, including a first lower metallization level forming cathodes, an electrical insulating layer, a second higher metallization level forming extraction grids, openings formed in the second metallization level and in the electrical insulating layer, and lines of electron emission arranged in the openings, which lines are parallel to the direction of the rows of the screen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.