Method for activating nanotubes as field emission sources
US6890230B2 · kind B2 · utility
4Cited by
7References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2001 |
| Grant date | May 10, 2005 |
| Priority date | — |
| Expiry date | Nov 3, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2201/30469
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A field emission source comprising a first conductive region, a layer of nanotubes deposited on the first conductive region, and a second conductive region placed over and spaced from the nanotube coated first conductive region. After the device structure is fabricated, a laser beam is used to dislodge one end of the nanotube from the first conductive surface and an electric field is simultaneously applied to point the freed end of the nanotube at the second conductive region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.