H01J2203/0268 - CPC Classification Index

ClassID:

205844 ⎘

H01J2203/0268 - 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 Insulation layer

Sub-classes:

H01J2203/0272 » for gate electrodes 6
H01J2203/0276 » for focusing electrodes 0
H01J2203/028 » characterised by the shape 1
H01J2203/0288 » characterised by the material 1

Recent Application in this class:

20160013005

2016-01-14

Field emission cathode and field emission device

20130241389

2013-09-19

VACUUM FIELD EMISSION DEVICES AND METHODS OF MAKING SAME

20070224429

2007-09-27

Dielectric and display device having a dielectric and dielectric manufacturing method