Device comprising carbon nanotube field emitter structure and process for forming device
US6630772B1 · kind B1 · utility
253Cited by
24References
17Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Apr 22, 1999 |
| Grant date | Oct 7, 2003 |
| Priority date | — |
| Expiry date | Apr 22, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/842
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention provides improved devices containing adherent carbon nanotube films, in particular electron field emitter structures containing such films. Previously, attaining even moderate adherence of powdery or mat-like nanotubes to a substrate was difficult, because of the perfect fullerene structure of nanotubes, which tend to exhibit no dangling bonds or defect sites where chemical bonding to the substrate is able to occur. The invention overcomes these problems, and provides a strongly adherent nanotube film, by a variety of fabrication processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.