Abstract

The electrostatic integrity for UTB GeOI MOSFETs is examined comprehensively by using an analytical solution of Poisson's equation verified with TCAD simulation. Our results indicate that UTB GeOI MOSFETs with the ratio of channel length (Lg) to channel thickness (Tch) around 5 can show comparable subthreshold swing to that of the SOI counterparts. The impact of the buried oxide thickness (TBOX) and back-gate bias () on the electrostatic integrity of GeOI devices is also examined.

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