H01J2203/024 - CPC Classification Index

ClassID:

205837 ⎘

H01J2203/024 - CPC Classification

Classification description:

Electron or ion optical arrangements common to discharge tubes or lamps; Electron guns using cold cathodes, e.g. field emission cathodes; Control electrodes Focusing electrodes

Sub-classes:

H01J2203/0244 » characterised by the form or structure 3
H01J2203/0256 » characterised by the material 0
H01J2203/026 » Relative position to the gateelectrodes, emitters, cathodes or substrates 1

Recent Application in this class:

20070029919

2007-02-08

Electron emission device having a focus electrode and a fabrication method therefor