High Temperature Electrical Characterization of 4H-SiC MESFET Basic Logic Gates

Due to our demonstrated stable Tungsten-Schottky barrier at elevated temperatures, and also thanks to our technological process maturity regarding SiC-Schottky contact fabrication, we have implemented the digital logic gates library adopting a normally-on MESFET topology. In this paper we present new experimental results showing the thermal behavior up to 300oC of 4H-SiC logic gates library, monolithically integrating normally-on MESFETs and epitaxial resistors. The implemented SiC devices are based on important CMOS features and are specially designed for large ICs device integration density.