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Electron emitter and method of fabricating electron emitter

  • US 20050269929A1
  • Filed: 06/02/2005
  • Published: 12/08/2005
  • Est. Priority Date: 06/08/2004
  • Status: Active Grant
First Claim
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1. An electron emitter comprising:

  • an emitter layer formed of a dielectric material;

    a first electrode provided on or above a first surface of the emitter layer and having an opening portion with an opening formed therein; and

    a second electrode provided on or above a second surface of the emitter layer opposite the first surface;

    the emitter layer emitting electrons through the opening when a drive voltage is applied between the first electrode and the second electrode, wherein the first electrode is configured and disposed such that a surface of the opening portion facing the first surface of the emitter layer is apart from the first surface, and the opening portion has an inner edge surrounding the opening, and has a shape which causes lines of electric force to concentrate at the inner edge.

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