Include fabrication and characterization of micro- and nano-electronic contacts (both Ohmic & Schottky) on Wide Band Gap (WBG) semiconductor (SiC, GaN, diamond etc.) for applications in extreme harsh environment. WBG semiconductors are advanced materials with intrinsic properties that make them suitable for high power and high frequency device fabrication and for devices that are able to survive in high temperature and high radiation environment. It is important to develop contacts that can survive in these extreme conditions as well. Otherwise, the rapid failure of contact metallization can cause devices to fail quickly.