Recessed gate field emission

Details Recessed gate field emission Recessed gate field emission

1991-08-16

1993-07-13

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

Current and/or voltage regulation

313309, 313336, H01J 1924

Patent

active

052276996

ABSTRACT:
Methods and apparatus for providing signal modulation or control of collector initialized and sustained field emission in field emitter devices without input circuit loading. A special control gate is used to modulate emission with no resultant steady-state emitter-gate current, thus increasing input resistance. The control gate may be well spaced from the emitter tip and the collector because it is not used to initiate and sustain emission from the emitter. This lowers emitter-gate and collector gate capacitances, thereby increasing input reactance for high frequency input signals. The collector-sustained field emission provides a low output resistance with relatively great collector-emitter spacing to provide high output reactance so that the high frequency response is extended.

REFERENCES:
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patent: 4528474 (1985-07-01), Kim
patent: 4721885 (1988-01-01), Brodie
patent: 4827177 (1989-05-01), Lee et al.
patent: 4908539 (1990-03-01), Meyer
patent: 4940916 (1990-07-01), Borel et al.
patent: 5003216 (1991-03-01), Hicks
patent: 5055077 (1991-10-01), Kane
A Vacuum Field Effect Transistor Using Silicon Field Emitter Arrays, by Gray, 1986 IEDM.

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