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Schottky Barrier Carbon Nanotube Transistor: Compact Modeling, Scaling Study, and Circuit Design Applications.

Authors :
Najari, Montassar
Fregonese, Sébastien
Maneux, Cristell
Mnif, Hassène
Masmoudi, Nouri
Zimmer, Thomas
Source :
IEEE Transactions on Electron Devices; 01/01/2011, Vol. 58 Issue 1, p195-205, 11p
Publication Year :
2011

Abstract

This paper presents a computationally efficient physics-based compact model for the Schottky barrier (SB) carbon nanotube field-effect transistor (CNTFET). This compact model includes a new analytical formulation of the channel charge, taking into account the influence of the source and drain SBs. Compact model simulation results ( I–V characteristic and channel density of charge) as well as Monte Carlo simulation results, which are provided by a recent work, will be given and compared to each other and also to experimental data to validate the used approximations. Good agreement is observed over a large range of gate and drain biases. Furthermore, a scaling study is presented to examine the impact of technological parameters on the device figure of merit. Then, for the assessment of the SB on circuit performances, traditional logical circuits are designed using the SB-CNTFET compact model, and results are compared with a conventional CNTFET with zero-SB height. Finally, exploiting the particular properties of SB-CNTFETs, a three-valued static memory that is suitable for high density integration is presented. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00189383
Volume :
58
Issue :
1
Database :
Complementary Index
Journal :
IEEE Transactions on Electron Devices
Publication Type :
Academic Journal
Accession number :
57254053
Full Text :
https://doi.org/10.1109/TED.2010.2084351