The impact of junction depth on vertical sidewall MOSFETs with embedded gate

In this work, we present a novel vertical MOSFET with embedded gate structure and try to overcome the challenges mentioned above by modifying the junction depth. Therefore, four types of vertical sidewall MOSFETs with embedded gate (EVGMOS) are also demonstrated and called the EVGMOS having lightly-doped drain (LDD) w/o or w/ 2.5 nm Si etching after gate formation and non-LDD w/o or w/ 2.5 nm Si etching after gate formation for comparison. The preliminary results are shown using TCAD simulations.