Method of manufacturing integral shadow gridded controlled poros

Details Method of manufacturing integral shadow gridded controlled poros Method of manufacturing integral shadow gridded controlled poros

1986-12-10

1988-05-17

Moore, David K.

Electric lamp and discharge devices

Electrode and shield structures

Cathodes containing and/or coated with electron emissive...

313293, 313299, 313345, 313355, 445 46, 445 51, 427 77, H01J 114, H01J 904

Patent

active

047453265

ABSTRACT:
A controlled porosity dispenser cathode and method of manufacture therefo using chemical vapor deposition and laser drilling, ion milling, or electron discharge machining for consistent and economical manufacturing a cathode with pores on the order of 0.2 to 2 .mu.m in diameter.

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patent: 4379979 (1983-04-01), Thomas et al.
patent: 4587455 (1986-05-01), Falce et al.
patent: 4680500 (1987-07-01), Buck

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