A novel 4H-SiC MESFET with a L-gate and a partial p-type spacer

作者:Jia, Hujun*; Zhang, Hu; Yang, Yintang
来源:Materials Science in Semiconductor Processing, 2012, 15(1): 2-5.
DOI:10.1016/j.mssp.2011.09.008

摘要

A 4H-SiC MESFET incorporated with L-gate and partial p-type spacer (LP-MESFET) is proposed and simulated. The simulations show that obvious improvements can be obtained for the LP-MESFET compared to the conventional structure (C-MESFET), such as a 17% larger of the saturation current, a 36% higher of the breakdown voltage V-b and a 95% larger of the maximum output power densities. Furthermore, the decrease of the g,ate-drain capacitance (C-GD) will lead to an improved RF performance for the LP-MESFET.