Field emission cathode
US6163107A · kind A · utility
12Cited by
8References
18Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Mar 9, 1998 |
| Grant date | Dec 19, 2000 |
| Priority date | — |
| Expiry date | Mar 9, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2329/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A field emission cathode that can uniform the number of electrons emitted from each emitter and can prevent a line defect even when a gate electrode is electrically short-circuited with an emitter. The movement of electrons in a channel formed on the channel forming electrode is controlled by applying a positive voltage to the current control electrode, so that the current supplied from the cathode electrode to the emitter can be controlled. If the emitter is short-circuited with the gate electrode, the increased current density destroys the channel, so that the current supply to the emitter can be stopped.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.