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Erschienen in: Journal of Computational Electronics 2/2012

01.06.2012

Analog and RF performance investigation of cylindrical surrounding-gate MOSFET with an analytical pseudo-2D model

verfasst von: Angsuman Sarkar, Swapnadip De, Anup Dey, Chandan Kumar Sarkar

Erschienen in: Journal of Computational Electronics | Ausgabe 2/2012

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Abstract

We report a systematic, quantitative investigation of analog and RF performance of cylindrical surrounding-gate (SRG) silicon MOSFET. To derive the model, a pseudo-two-dimensional (2-D) approach applying Gauss’s law in the channel region is extended for the cylindrical SRG MOSFET. Based on surface potential approach, expressions of drain current and differential capacitances are obtained analytically. Analog/RF figures of merit of SRG MOSFET are studied, including transconductance efficiency g m/I d, intrinsic gain, output resistance, cutoff frequency f T, maximum oscillation frequency f max and gain bandwidth product GBW. The trends related to their variations along the downscaling of dimension are provided. In order to validate our model, the modeled predictions have been extensively compared with the simulated characteristics obtained from the ATLAS device simulator and a nice agreement is observed with a wide range of geometrical parameters.

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Metadaten
Titel
Analog and RF performance investigation of cylindrical surrounding-gate MOSFET with an analytical pseudo-2D model
verfasst von
Angsuman Sarkar
Swapnadip De
Anup Dey
Chandan Kumar Sarkar
Publikationsdatum
01.06.2012
Verlag
Springer US
Erschienen in
Journal of Computational Electronics / Ausgabe 2/2012
Print ISSN: 1569-8025
Elektronische ISSN: 1572-8137
DOI
https://doi.org/10.1007/s10825-012-0396-9

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