Universiti Teknologi Malaysia Institutional Repository

Current-voltage characteristics of carbon nanotube field effect transistor

Ahmadi, Mohammad Taghi and Ismail, Razali and K. Arora, Vijay (2008) Current-voltage characteristics of carbon nanotube field effect transistor. In: IEEE International Conference on Semiconductor Electronics (ICSE2008), 2008, Johor Bahru, Johor.

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Official URL: http://dx.doi.org/10.1109/RSTSCC.2010.5712860

Abstract

Carbon Nanotube Field Effect Transistors (CNTFET) are promising nano-scaled devices for implementing high performance, very dense and low power circuits. The core of a CNTFET is a carbon nanotube. Its conductance property is determined by the so-called chirality of the tube; chirality is difficult to control during manufacturing. This results in conducting (metallic) nanotubes and defective CNTFETs similar to stuck-on (SON or source-drain short) faults, as encountered in classical MOS devices. This paper studies this phenomenon by using layout information and presents modeling. For CNTFET-based circuits (e.g. intramolecular), these defects are analyzed using a traditional stuck-at fault model. This analysis is applicable to primitive and complex gates. In this paper, we have also developed a simple analytical model for ballistic nano transistors that operate by modulating the charge in the device (as opposed to modulating the current at the contact). This analytical model captures the essential physics of MOSFET-like ballistic nanotransistors and provides a convenient way to assess and compare transistors at the ballistic limit. The circuit simulation was carried out using SPICE model and the current voltage characteristics were obtained.

Item Type:Conference or Workshop Item (Paper)
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:19006
Deposited By: Liza Porijo
Deposited On:29 Nov 2011 08:56
Last Modified:29 Nov 2011 08:56

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