Cold electron emission device

Active solid-state devices (e.g. – transistors – solid-state diode – Thin active physical layer which is – Low workfunction layer for electron emission

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313309, 313336, 313351, H01L 2906

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active

060205954

ABSTRACT:
A cold electron emission device including an emitter having a protrusion having a sharp tip and disposed at a first end of a semiconductor thin film formed on an insulation substrate; a cathode electrode disposed at a second end of the semiconductor thin film; at least one gate electrode disposed between the emitter and the cathode electrode for controlling a current flowing through the semiconductor thin film; an insulating layer arranged to cover the semiconductor thin film, cathode electrode and gate electrode, except for the emitter; and a lead electrode arranged on the insulating layer such that it surrounds the tip of the emitter, thereby making it possible to achieve a cold electron emission device with reliable current stability.

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