The University of Southampton
University of Southampton Institutional Repository

VHDL-AMS implementation of a numerical ballistic CNT model for logic circuit simulation

Zhou, Dafeng, Kazmierski, Tom and Al-Hashimi, Bashir (2008) VHDL-AMS implementation of a numerical ballistic CNT model for logic circuit simulation At Specification, Verification and Design Languages, 2008. FDL 2008. Forum on. 23 - 25 Sep 2008. , pp. 94-98.

Record type: Conference or Workshop Item (Paper)

Abstract

This paper introduces a novel numerical carbon nanotube transistor (CNT) modelling approach which brings in a flexible and efficient cubic spline non-linear approximation of the non-equilibrium mobile charge density. The spline algorithm creates a rapid and accurate solution of the numerical relationship between the charge density and the self-consistent voltage, which leads to the speed-up of deriving the current through the channel without losing much accuracy. This modelling method also allows the flexibility of choosing different cubic spline intervals which may affect the performance of the model, but it is still capable of obtaining an acceleration of more than a 100 times while maintaining the accuracy within less than 1.5% normalised RMS error compared with previous reported theoretical modelling approach. The model has been proved working as transistors in a logic inverter implemented using VHDL-AMS and simulated in SystemVision, which shows the availability of implementing a circuit-level simulators with our proposed model. Additionally, although this model is originally based on the ideal ballistic transport characteristics, it shows good flexibility that the extension with numbers of non-ballistic features are certainly acceptable.

PDF FDL.pdf - Version of Record
Download (231kB)

More information

Published date: 25 September 2008
Additional Information: Event Dates: 23-25 Sept. 2008
Venue - Dates: Specification, Verification and Design Languages, 2008. FDL 2008. Forum on, 2008-09-23 - 2008-09-25
Organisations: Electronic & Software Systems, EEE

Identifiers

Local EPrints ID: 267150
URI: http://eprints.soton.ac.uk/id/eprint/267150
ISBN: 978-1-4244-2264-7
PURE UUID: dc4efe44-fc84-4822-8736-860a62b243b4

Catalogue record

Date deposited: 02 Mar 2009 16:34
Last modified: 18 Jul 2017 07:07

Export record

Contributors

Author: Dafeng Zhou
Author: Tom Kazmierski

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×