Field emission type electron source

Details Field emission type electron source Field emission type electron source

1994-11-29

1998-07-28

Patel, Ashok

Electric lamp and discharge devices

Discharge devices having a multipointed or serrated edge...

313336, 313351, 313310, 313495, H01J 116

Patent

active

057866597

ABSTRACT:
A field emission type electron source capable of permitting a resistance value between a cathode wiring and each of emitter cones to be set at substantially the same level and increasing packaging density of the emitter cones. The electron source includes stripe-like cathode wirings arranged on an insulating substrate. The cathode wirings each are formed with a plurality of windows, so that a plurality of island-like cathode conductors and resistance layers different in resistance value from each other are formed separate from the cathode wiring. Then, a resistance layer, an insulating layer and a gate electrode are formed thereon. The gate electrode and insulating layer are formed with apertures in a manner to be common to both, in which the emitter cones are arranged, resulting in emission of electrons from the emitter cones of each group unit being rendered uniform.

REFERENCES:
patent: 3755704 (1973-08-01), Spindt et al.
patent: 5142184 (1992-08-01), Kane
patent: 5189341 (1993-02-01), Itoh et al.
patent: 5194780 (1993-03-01), Meyer

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