Selex Sistemi Integrati S.p.a.

Selex Es S.p.a.

Francesca Brunetti

Aldo Di Carlo

Riccardo Riccitelli

Massimiliano Dispenza

Anna Maria Fiorello

Eleonora Petrolati

Giacomo Ulisse

Maria Letizia Terranova

Silvia Orlanducci

Massimiliano Lucci

Claudio Paolini

Roberta Buttiglione

Filippo Gemma

Ferdinando Ricci

Claudio Paoloni

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

Electron-emitting cold cathode device

Disclosed herein is a triode-type field emission device, in particular for high frequency applications, having a cathode electrode, an anode electrode spaced from the cathode electrode, a control gate electrode arranged between the anode electrode and the cathode electrode, and at least a field-emitting tip; the cathode, control gate and anode electrodes overlapping in a triode area at the field-emitting tip and being operable to cooperate with the field-emitting tip for generation of an electron beam in the triode area. The cathode, control gate and anode electrodes do not overlap outside the triode area, and have a main direction of extension along a respective line; each of these respective lines being inclined at a non-zero angle with respect to each one of the others.

High frequency triode-type field emission device and process for manufacturing the same

Disclosed herein is a high frequency, cold cathode, triode-type, field-emitter vacuum tube including a cathode structure, an anode structure spaced from the cathode structure, and a control grid, wherein the cathode structure and the anode structure are formed separately and bonded together with the interposition of spacers, and the control grid is integrated in the anode structure.

High frequency, cold cathode, triode-type, field-emitter vacuum tube and process for manufacturing the same

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Rome, Italy

Francesca Brunetti