Abstract
In this paper we develop several extensions to semi-classical modeling of low-field mobility, which are necessary to treat planar and non-planar channel geometries on equal footing. We advance the state-of-the-art by generalizing the Prange-Nee model for surface roughness scattering to non-planar geometries, providing a fully numerical treatment of Coulomb scattering, and formulating the Kubo-Greenwood mobility model in a consistent, dimension-independent manner. These extensions allow meaningful comparison of planar and non-planar structures alike, and open the door to evaluating emerging device concepts, such as the FinFET or the junction-less transistor, on physical grounds.
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