Solid State Electronics, Vol. 38 (6) (1995) pp. 1264-1266
© 1995 Elsevier Science B.V. All rights reserved.

               Monte Carlo formulation of field-dependent mobility for AlxGa1 - xAs

                                              Xing Zhou and Hong Siang Tan
 

  School of Electrical and Electronic Engineering Nanyang Technological University Nanyang Avenue, Singapore 2263, Republic of Singapore

                                               Received 14 September 1994

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© Copyright 2001, Elsevier Science, All rights reserved.



Solid State Electronics, Vol. 45 (1) (2001) pp. 193-197
© 2001 Published by Elsevier Science Ltd. All rights reserved.
PII: S0038-1101(00)00190-8

A physically-based semi-empirical effective mobility model for MOSFET compact I-V modeling

K.Y. Lim and X. Zhou * exzhou@ntu.edu.sg

School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore

Received 25 November 1999; received in revised form 3 August 2000

Abstract

A physically-based effective mobility model is presented, which includes Coulombic, phonon, and surface roughness scattering mechanisms. The model is semi-empirical and consists of three physics-based fitting parameters to be extracted with a single measurement of terminal current. The developed model is shown to be more physical than the commonly-used empirical model, and the doping dependence can be modeled after parameter extraction. The model has been verified with excellent prediction to the experimental data with broad bias and doping variations.
Keywords: Effective mobility; MOSFET; Compact model

*Corresponding author. Tel.: +65-790-4532; fax: +65-791-2687

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© Copyright 2001, Elsevier Science, All rights reserved.



Solid State Electronics, Vol. 45 (3) (2001) pp. 507-510
© 2001 Elsevier Science Ltd. All rights reserved.
PII: S0038-1101(01)00035-1

Threshold voltage definition and extraction for deep-submicron MOSFETs

X. Zhou * exzhou@ntu.edu.sg, K.Y. Lim and W. Qian

School of Electrical and Electronic Engineering, Nanyang Technological University, Block S1, Singapore 639798, Singapore

Received 5 February 2000; received in revised form 3 November 2000

Abstract

The subtle difference in MOSFET threshold voltage between the two popular definitions, maximum-gm and constant current, is investigated in the deep-submicron regime. The result pinpoints to the importance of the lateral-field effect in linear region at very short gate length, and further supports the combined definition known as the "critical current at linear threshold" method, which includes short-channel effects while retaining the simplicity and consistency of the constant-current method.
*Corresponding author. Tel.: +65-790-4532; fax: +65-791-2687

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© Copyright 2001, Elsevier Science, All rights reserved.