Asymmetric gate (AG) FET: a novel sub-micron MOS device structure with excellent performance

A novel field effect transistor (FET), asymmetric gate (AG) FET, is proposed and its excellent performance has been demonstrated numerically in this paper. Compared with the conventional MOSFET, the AGFET benefits from the special design of the gate oxide, which is divided into two regions, with one region at the source side thicker than that at the drain side. Two-dimensional (2-D) numerical simulations have proved that, in the novel structure, short-channel effects (SCE) can be greatly suppressed via channel being screened from the drain potential variations, while a significant velocity overshoot is achieved resulting in more drive current. It has shown that the AGFET will be one of the promising structures in design of sub-micron devices.