Investigation of non-local transport phenomena in small semiconductor devices

The hydrodynamic transport model based fin the generalized momentum and energy equations is used to simulate a n + -n-n + one-dimensional silicon device and the results are compared with Monte Carlo calculations. The non-local effects are shown to become important for lengths of the order of a few tenths of a micrometer at applied voltages around 1.0–1.5 V. The hydrodynamic and Monte Carlo velocity and energy are generally in good agreement. Finally, the effects of the thermal conductivity and of the convective terms, in regions where large gradients are present, are investigated.

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