Abstract
In this paper, the unique features exhibited by a novel double-gate (DG) metal-oxide-semiconductor field-effect transistor (MOSFET) in which the front gate consists of two side gates to 1) electrically shield the channel region from any drain voltage variation and 2) act as an extremely shallow virtual extension to the source/drain are presented. This structure exhibits significantly reduced short-channel effects (SCEs) when compared with the conventional DG MOSFET. Using two-dimensional (2-D) and two-carrier device simulation, the improvement in device performance focusing on threshold voltage dependence on channel length, electric field in the channel, subthreshold swing, and hot carrier effects, all of which can affect the reliability of complementary metal oxide semiconductor (CMOS) devices, was investigated.
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