Atomically sharp field emission cathodes

Electric lamp or space discharge component or device manufacturi – Process – Electrode making

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445 24, H01J 904

Patent

active

061134511

ABSTRACT:
An electron emitting device characterized by a monocrystalline substrate, a plurality of monocrystalline nanomesas or pillars disposed on the subste in a spaced relationship and extending generally normally therefrom, monocrystalline self-assembled tips disposed on top of the nanomesas, and essentially atomically sharp apexes on the tips for field emitting electrons. A method for making the emitters is characterized by forming a gate electrode and gate electrode apertures before forming the tips on the nanomesas.

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