Inclusion of Phonon Dispersion and its Influence on Electrical Characteristic Degradation due to Heating Effects in Nanoscale FD-SOI Devices

We address the most critical issue in nano-devices: the degradation due to lattice heating. We consider different dispersions for the acoustic and optical phonon modes. We find that in small devices, due to the velocity overshoot effect lattice heating has less degrading effect on the device electri...

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Bibliographic Details
Published in:29th International Conference on the Physics of Semiconductors 2008-07, Vol.1199, p.493-494
Main Authors: Vasileska, Dragica, Raleva, Katerina, Goodnick, Stephen M
Format: Article
Language:English
Online Access:Get full text
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Summary:We address the most critical issue in nano-devices: the degradation due to lattice heating. We consider different dispersions for the acoustic and optical phonon modes. We find that in small devices, due to the velocity overshoot effect lattice heating has less degrading effect on the device electrical characteristics. We also find that the use of the realistic phonon dispersion relations rather than the simplified ones does not affect the results and conclusions obtained when using linear dispersion for the acoustic modes and constant dispersion for the optical modes.
ISSN:0094-243X