Field emitter having source, channel, and drain layers

Details Field emitter having source, channel, and drain layers Field emitter having source, channel, and drain layers

1996-08-14

1998-01-20

Zimmerman, Brian

Electric lamp and discharge devices

Electrode and shield structures

Point source cathodes

313309, 257 10, H01J 130, H01J 1924

Patent

active

057104786

ABSTRACT:
A field emission device of simple structure enables stabilization and control of field emission current. A three-dimensional emitter formed on a base member incorporates therein a source layer on the side in contact with the base member, a drain layer on the side of the distal end including a tip and a channel region layer between the source layer and the drain layer. A gate is formed near the emitter. A strong electric field generated by applying a voltage to the gate causes cold electrons to be emitted from the emitter tip and the voltage applied to the gate also controls the conductivity of the channel region layer, whereby the field emission current emitted from the tip of the emitter is stabilized and controlled.

REFERENCES:
patent: 5138237 (1992-08-01), Kane et al.
patent: 5212426 (1993-05-01), Kane
patent: 5341063 (1994-08-01), Kumar
patent: 5430348 (1995-07-01), Kane et al.
patent: 5550435 (1996-08-01), Kuriyama et al.

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