Cold cathode electron source element and method for making

Details Cold cathode electron source element and method for making Cold cathode electron source element and method for making

1997-11-03

1999-01-19

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

Electrode making

H01J 902

Patent

active

058608443

ABSTRACT:
A cold cathode electron source element having a cold cathode on a substrate. The cold cathode has dispersed in a cold cathode base particles of a conductive material having a lower work function than the base and a particle size which is sufficiently smaller than the thickness of the cold cathode. The element can be driven with a low voltage to induce high emission current in a stable manner. The cold cathode is easily processable. The element can have an increased surface area.

REFERENCES:
patent: 4524297 (1985-06-01), Gartner
patent: 4663559 (1987-05-01), Christensen
patent: 5066883 (1991-11-01), Yosnioka et al.
patent: 5089742 (1992-02-01), Kirpatrick et al.
patent: 5759080 (1998-06-01), Yoshioka et al.

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