ELECTRON-EMITTING COLD CATHODE DEVICE

摘要

The invention concerns a device (11, 21) comprising: a cathode (14) that lies on a cathode plane and includes, in an active region (11a), one or more cathode straight -finger-shaped terminals (14b) with a main extension direction parallel to a first reference direction (2); for each cathode terminal (14b), one or more electron emitters (14c) formed on, and in ohmic contact with, said cathode terminal (14b); and a gate electrode (15) that lies on a gate plane parallel to, and spaced apart from, said cathode plane, does not overlap the cathode (14) and includes, in the active region (lla), two or more gate straight-finger-shaped terminals (15b) with a main extension direction parallel to the first reference direction (z); wherein the gate terminals (15b) are interlaced with said cathode terminal (s) (14b).