CPC Subgroup Additional Only
H01J 2201/30403 characterised by the emitter shape
Full Title
Electrodes common to discharge tubes > Cold cathodes > Field emission cathodes > characterised by the emitter shape
8 direct subcodes
Child Classifications
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- H01J 2201/30407 Microengineered point emitters
- H01J 2201/30419 Pillar shaped emitters
- H01J 2201/30423 Microengineered edge emitters
- H01J 2201/30426 Coatings on the emitter surface, e.g. with low work function materials
- H01J 2201/3043 Fibres
- H01J 2201/30434 Nanotubes
- H01J 2201/30438 Particles
- H01J 2201/30442 Whiskers