Microtip cathode with resistive layer

Details Microtip cathode with resistive layer Microtip cathode with resistive layer

1997-10-16

2000-08-15

Day, Michael H.

Electric lamp and discharge devices

Electrode and shield structures

Point source cathodes

313309, H01J 130, H01J 1924

Patent

active

061041319

ABSTRACT:
A cathode (1) includes a substrate (10), a resistive layer (11) disposed on the substrate (10); at least one cathode conductor (13), and microtips (2) disposed on the resistive layer (11), wherein the cathode conductor (13) has circular wells (17) in the middle of each of which a microtip (2) is disposed, whereby the microtips (2) are electrically isolated from the cathode (13) by a constant access resistance.

REFERENCES:
patent: 5451830 (1995-09-01), Huang

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