Field emission device having stamped substrate and method
US6114802A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 1997 |
| Grant date | Sep 5, 2000 |
| Priority date | — |
| Expiry date | Feb 28, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2329/8615
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A field emission device (400) includes a plastically-deformable, ceramic, stamped substrate (200) made from a plastically deformable ceramic, which in the preferred embodiment includes a calendered tape. The plastically-deformable, ceramic, stamped substrate (200) includes first and second opposed surfaces (202, 204) and defines apertures (206) in which are formed extraction electrodes (410). The field emission device (400) further includes an electron-emissive layer (418) being formed on the first opposed surface (202). Cathodes (420) are disposed on the electron-emissive layer (418) and cross the extraction electrodes (410) at an angle of 90.degree.. A method for fabricating said field emission device (400) includes stamping a layer (100) of the softened calendered tape with a die (300) to define the apertures (206) and grooves (208, 212, 214).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.