Method and apparatus for adjusting characteristics of electron source, and method for manufacturing electron source
US6890229B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 10, 2004 |
| Grant date | May 10, 2005 |
| Priority date | — |
| Expiry date | Mar 22, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G3/22
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for adjusting characteristics of an electron source having a plurality of electron-emitting devices, and a method for manufacturing the electron source include the step of applying a pulse of a voltage for adjustment to an electron-emitting device to be adjusted one or more times according to a characteristic of the electron-emitting device, wherein the voltage for adjustment is selected from a plurality of voltages having discrete values according to the characteristic of the electron-emitting device, and a number of applying times of the pulse is determined according to the characteristic of the electron-emitting device and the selected voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.