CUED Publications database

Device and circuit-level performance of carbon nanotube field-effect transistor with benchmarking against a nano-MOSFET

Tan, MLP and Lentaris, G and Amaratunga, GAJ (2012) Device and circuit-level performance of carbon nanotube field-effect transistor with benchmarking against a nano-MOSFET. Nanoscale Research Letters, 7. ISSN 1931-7573

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Abstract

The performance of a semiconducting carbon nanotube (CNT) is assessed and tabulated for parameters against those of a metal-oxide-semiconductor field-effect transistor (MOSFET). Both CNT and MOSFET models considered agree well with the trends in the available experimental data. The results obtained show that nanotubes can significantly reduce the drain-induced barrier lowering effect and subthreshold swing in silicon channel replacement while sustaining smaller channel area at higher current density. Performance metrics of both devices such as current drive strength, current on-off ratio (Ion/Ioff), energy-delay product, and power-delay product for logic gates, namely NAND and NOR, are presented. Design rules used for carbon nanotube field-effect transistors (CNTFETs) are compatible with the 45-nm MOSFET technology. The parasitics associated with interconnects are also incorporated in the model. Interconnects can affect the propagation delay in a CNTFET. Smaller length interconnects result in higher cutoff frequency. © 2012 Tan et al.

Item Type: Article
Uncontrolled Keywords: Benchmarking CNTFET Device modeling HSPICE Logic gates MOSFET
Subjects: UNSPECIFIED
Divisions: Div B > Electronics, Power & Energy Conversion
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:23
Last Modified: 08 Dec 2014 02:37
DOI: 10.1186/1556-276X-7-467