Spacer pads for field emission device
US5831383A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 12, 1997 |
| Grant date | Nov 3, 1998 |
| Priority date | — |
| Expiry date | May 12, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2329/8655
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A field emission device (100, 200) includes an anode (190); a substrate (110); a plurality of spaced apart cathodes (120); a dielectric layer (124) disposed on the cathodes (120); a plurality of spacer pads (130, 230) disposed on the substrate (110) between adjacent cathodes (120) and including a spacer contact layer (142, 185) that defines the surfaces of the spacer pads (130, 230); a spacer (150) having a first edge (157), a second edge (155), and a conductive layer (152) disposed on the second edge (155), the first edge (157) contacting the anode (190), the conductive layer (152) contacting the spacer contact layer (142, 185) at the spacer pads (130, 230); and an electron emitter (170) disposed within the dielectric layer (124) and spaced apart from the second edge (155) of the spacer (150).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.