Hostname: page-component-78c5997874-xbtfd Total loading time: 0 Render date: 2024-11-20T04:58:07.524Z Has data issue: false hasContentIssue false

Simulation of 2D quantum effects in ultra-short channel MOSFETs by a finite element method*

Published online by Cambridge University Press:  15 August 2001

A. Poncet*
Affiliation:
Laboratoire de Physique de la Matière (UMR-CNRS 5511), INSA-Lyon, 20 avenue Albert Einstein, 69621 Villeurbanne, France
C. Faugeras
Affiliation:
Laboratoire de Physique de la Matière (UMR-CNRS 5511), INSA-Lyon, 20 avenue Albert Einstein, 69621 Villeurbanne, France
M. Mouis
Affiliation:
Laboratoire de Physique de la Matière (UMR-CNRS 5511), INSA-Lyon, 20 avenue Albert Einstein, 69621 Villeurbanne, France
Get access

Abstract

This paper presents a flexible numerical technique which is especially suited to analyze lateral modulation of quantum effects in short channel MOS transistors. We discuss boundary conditions for the Schrödinger equation and the impact of the finite element meshing. We show how channel length shortening alters the sub-band structure, thus giving an evaluation of the limits of a 1D quantum approach.

Keywords

Type
Research Article
Copyright
© EDP Sciences, 2001

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Footnotes

*

This paper has been presented at 3es Journées Nationales “Hétérostructures à semiconducteurs IV-IV” , Orsay, July 2000.

References

Moglestue, M., J. Appl. Phys. 59, 3175 (1986). CrossRef
C. Raynaud, J.-L. Autran, P. Masson, M. Bidaud, A. Poncet, Mat. Res. Soc. Symp. Proc., Vol. 592, Boston, 1999.
Abramo, A., Cardin, A., Selmi, L., Sangiorgi, E., IEEE Trans. Electron Devices 47, 1858 (2000). CrossRef
Abou-Elnour, A., Schuenemann, K., J. Appl. Phys. 74, 3273 (1993). CrossRef
Trellakis, A., Galick, A.T., Pacelli, A., U. Ravaioli. J. Appl. Phys. 81, 7880 (1997). CrossRef
Van Dort, M.J., Woerlee, P.H., Walker, A.J., Solid-State Electron. 37, 411 (1994). CrossRef
P. Ciarlet, The finite element method for elliptic problems, Studies in Mathematics and its applications (North Holland, 1978), Vol. 4.