Electron field emitter and compositions related thereto

Details Electron field emitter and compositions related thereto Electron field emitter and compositions related thereto

2008-01-08

2008-01-08

Santiago, Mariceli (Department: 2879)

Electric lamp and discharge devices

Discharge devices having an electrode of particular material

C313S309000, C313S310000, C313S351000, C445S050000, C445S051000, C977S742000, C977S745000

Reexamination Certificate

active

07317277

ABSTRACT:
This invention provides compositions of matter that contain an electron emitting substance and an expansion material. The expansion material may, for example, be an intercalation compound. When a film is formed from the composition, expansion of the expansion material typically causes rupturing or fracturing of the film. No further treatment of the surface of the film is typically required after expansion of the expansion material to obtain good emission properties. A surface formed from such a fractured film acts as an efficient electron field emitter and thus is useful in vacuum microelectronic devices.

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