Vacuum microelectronic devices play an important role in the field of micro- and nano-electronics and they have been strongly developed in recent decades. Vacuum microelectronics are mainly based on the field emission effect and the employment of electrons in vacuum in a device with dimensions from tenths to hundredths of a micrometer. In this work, we present the development of a carbon-nanotube-based multifinger microtriode operating from 0.5 to 2 GHz. In this frequency range, a minimum RF signal gain of 5 dB is achieved. Such a device represents an optimized alternative to the standard Spindt-type microtriode. The advantage of such multifinger architecture consists in the possibility to reduce the cathode-grid capacitance by reducing the overlap between the two electrodes using a parallel patterning. This approach allows increasing the cut-off frequency of the devices with respect to the Spindt-type triode. We realized a prototype of the multifinger triode and the field emission properties have been characterized. The frequency behavior has been measured, demonstrating the possibility to amplify RF signal.

Ulisse, G., Brunetti, F., Ciceroni, C., Gemma, F., Dispenza, M., Fiorello, A.m., et al. (2015). A multifinger microtriode with carbon nanotubes field emission cathode operating at GHz frequency. NANOTECHNOLOGY, 26(21), 215204 [10.1088/0957-4484/26/21/215204].

A multifinger microtriode with carbon nanotubes field emission cathode operating at GHz frequency

Ulisse G.;Brunetti F.;Ciceroni C.;Dispenza M.;Di Carlo A.
2015-01-01

Abstract

Vacuum microelectronic devices play an important role in the field of micro- and nano-electronics and they have been strongly developed in recent decades. Vacuum microelectronics are mainly based on the field emission effect and the employment of electrons in vacuum in a device with dimensions from tenths to hundredths of a micrometer. In this work, we present the development of a carbon-nanotube-based multifinger microtriode operating from 0.5 to 2 GHz. In this frequency range, a minimum RF signal gain of 5 dB is achieved. Such a device represents an optimized alternative to the standard Spindt-type microtriode. The advantage of such multifinger architecture consists in the possibility to reduce the cathode-grid capacitance by reducing the overlap between the two electrodes using a parallel patterning. This approach allows increasing the cut-off frequency of the devices with respect to the Spindt-type triode. We realized a prototype of the multifinger triode and the field emission properties have been characterized. The frequency behavior has been measured, demonstrating the possibility to amplify RF signal.
2015
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore ING-INF/01 - ELETTRONICA
English
Ulisse, G., Brunetti, F., Ciceroni, C., Gemma, F., Dispenza, M., Fiorello, A.m., et al. (2015). A multifinger microtriode with carbon nanotubes field emission cathode operating at GHz frequency. NANOTECHNOLOGY, 26(21), 215204 [10.1088/0957-4484/26/21/215204].
Ulisse, G; Brunetti, F; Ciceroni, C; Gemma, F; Dispenza, M; Fiorello, Am; Ricci, F; Di Carlo, A
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/201277
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