Field emission cathode and method for manufacturing same

Details Field emission cathode and method for manufacturing same Field emission cathode and method for manufacturing same

1997-01-30

1999-04-06

Patel, Nimeshkumar

Electric lamp and discharge devices

Electrode and shield structures

Point source cathodes

313309, 313351, 313495, H01J 130

Patent

active

058923217

ABSTRACT:
A field emission cathode capable of preventing an increase in emission current discharged from conical emitters due to a variation in environmental temperature. The field emission cathode includes a resistive layer structure, which is constructed of two resistive layers different in temperature charactertistics. Such construction substantially prevents a variation in resistance of the whole resistive layer strcuture due to an increase in environmental temperature.

REFERENCES:
patent: 5194780 (1993-03-01), Meyer
patent: 5502347 (1996-03-01), Dworsky et al.
patent: 5557159 (1996-09-01), Taylor et al.
patent: 5594298 (1997-01-01), Itoh et al.

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