A vacuum electronics device, made of a substrate on which small "Spindt tips" are microfabricated. A Spindt tip is a tiny conical tip microfabricated on a substrate which emits electrons by Field emission. Upon receiving a voltage, the tips emit electrons by field emission, functioning like a cold cathode. Field emission (FE is the emission of electrons from the surface of a condensed phase into another phase due to the presence of high electric fields A cold cathode is an element used within some Nixie tubes Gas discharge lamps Gas filled tubes and Vacuum tubes Cold cathodes do not

Spindt, Shoulders and Heynick filed a U. S. Patent ^[1] in 1970 for a vacuum device comprising an array of emitter tips.

References

1. ^ U. S. Patent 3,755,704 granted on August 28, 1973

Patents

• U.S. Patent 3,755,704 

See also

• Field emission
• Field-emitter microtube
• Spindt tip
• Field emission display

Field emission (FE is the emission of electrons from the surface of a condensed phase into another phase due to the presence of high electric fields This article is about the electronic device not an evacuated pipe used for experiments in Free-fall. A Spindt tip is a tiny conical tip microfabricated on a substrate which emits electrons by Field emission. A field emission display ( FED) is a Flat panel display technology based on field emitting cathodes to bombard Phosphor coatings as the light emissive

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