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Proceedings Paper

Numerical modeling of electron noise in nanoscale Si devices
Author(s): Christoph Jungemann
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Paper Abstract

A deterministic solver for the Langevin Boltzmann equation is presented, which is based on a spherical harmonics expansion, box integration, and a maximum entropy dissipation principle. The numerical properties of this method are very similar to the classical approaches (drift-diffusion or hydrodynamic models), and the same numerical methods can be used (ac analysis, adjoint method, harmonic balance, etc). Since the equations can be solved directly in the frequency domain, the full frequency range down to zero frequency is accessible. In addition, rare events can be simulated without excessive CPU times. This is demonstrated for a silicon NPN BJT. Not only the terminal current noise is calculated, but also the spatial origin of noise and the corresponding Green's functions.

Paper Details

Date Published: 11 June 2007
PDF: 12 pages
Proc. SPIE 6600, Noise and Fluctuations in Circuits, Devices, and Materials, 66001E (11 June 2007); doi: 10.1117/12.724399
Show Author Affiliations
Christoph Jungemann, Bundeswehr Univ. (Germany)

Published in SPIE Proceedings Vol. 6600:
Noise and Fluctuations in Circuits, Devices, and Materials
Massimo Macucci; Lode K.J. Vandamme; Carmine Ciofi; Michael B. Weissman, Editor(s)

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