Method for manufacturing a cathode for a gas discharge tube

Details Method for manufacturing a cathode for a gas discharge tube Method for manufacturing a cathode for a gas discharge tube

1993-07-14

1994-10-04

Beck, Shrive

Coating processes

Electrical product produced

427124, 4272553, 4273837, 427405, C23C 1400

Patent

active

053524772

ABSTRACT:
A gas discharge tube using a tunnel effect type electron emitting device as a cathode is provided. The electron emitting device comprises a conductive metal base and a dielectric film formed preferably of a material containing MgO as a main component on the metal base. The dielectric film faces an anode and is exposed to a gas in the tube. In the cathode of this structure, discharge is effected at a relatively low DC voltage.

REFERENCES:
patent: 2745772 (1956-05-01), Cassman
patent: 2864024 (1958-12-01), Ahsmann et al.
patent: 3904905 (1975-09-01), Watanabe et al.
patent: 4864187 (1989-09-01), Sano

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