Fabrication and activation processes for nanostructure composite field emission cathodes
US7294248B2 · kind B2 · utility
18Cited by
8References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 2, 2003 |
| Grant date | Nov 13, 2007 |
| Priority date | — |
| Expiry date | Aug 18, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2201/30469
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method of forming an electron emitter includes the steps of: (i) forming a nanostructure-containing material; (ii) forming a mixture of nanostructure-containing material and a matrix material; (iii) depositing a layer of the mixture onto at least a portion of at least one surface of a substrate by electrophoretic deposition; (iv) sintering or melting the layer thereby forming a composite; and (v) electrochemically etching the composite to remove matrix material from a surface thereof, thereby exposing nanostructure-containing material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.