Simulation of electrical parameters for Ru/Ta2O5/SiO2/Si(p) high-k MOS structure

Abstract

The contribution presents the results of simulation of direct tunnelling of free charge carriers through a thin gate insulator in MOS structures consisting of a Ta2O5/SiO2 bilayer taking into account also indirect tunnelling of free charge carriers through the SiO2/Si interface traps. The calculated I–V and C–V curves reveal the processes of electron and hole tunnelling through the insulator-to-semiconductor potential barrier that can be divided into four classes

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