Method of manufacturing a cold-cathode for a discharge device

Details Method of manufacturing a cold-cathode for a discharge device Method of manufacturing a cold-cathode for a discharge device

1999-01-13

1999-12-14

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

Electrode making

427 77, 445 26, H01J 902

Patent

active

060009829

ABSTRACT:
A method of manufacturing a cold-cathode for a discharging device by forming a film containing a rare earth element on a base plate; and oxidizing said rare earth element of said film. The oxidizing step can be accomplished by heating the rare earth element of said film in a gas atmosphere containing oxygen and/or oxygen-containing substance in a concentration of 1% or less by volume.

REFERENCES:
patent: 3869312 (1975-03-01), Moss et al.
patent: 4136227 (1979-01-01), Saito et al.
patent: 4864191 (1989-09-01), Van De Weijer et al.
patent: 5111108 (1992-05-01), Goodman et al.

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