Field-emission cold-cathode electron gun having emitter tips bet

Details Field-emission cold-cathode electron gun having emitter tips bet Field-emission cold-cathode electron gun having emitter tips bet

1997-08-29

1999-11-16

Patel, Vip

Electric lamp and discharge devices

Discharge devices having a multipointed or serrated edge...

313336, 313351, 313495, H01J 102

Patent

active

059863889

ABSTRACT:
A field-emission cathode comprises a substrate having a conductive surface, a gate electrode and a focusing electrode overlying the substrate with insulation layers interposed therebetween, a plurality of cavities formed by penetrating the gate electrode, focusing electrode and insulation layers, and an emitter formed in each of the cavities on the substrate for emission of an electron beam. The emitter has tip located at a level between the gate electrode and the focusing electrode, which receive therebetween a signal for modulating the electron beam at a high frequency.

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Spindt, et al., "Progress in Field-Emitter Array Development for High Frequency Operation", Proceedings of the International Electron Devices Meeting, Washington, Dec. 5-8, 1993, pp. 749-752, Institute of Electrical and Electronics Engineers.
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