Amorphous silicon carbide nitride layer as an alternative to a disordered silicon surface to suppress RF/microwave losses
An alternative thermally-stable RF passivation method is presented. The method relies on placing the surface currents in a high resistive region. The lowest RF losses are achieved for the thin nitrated amorphous SiC layers. The nitridation changed the SiC surface from an insulating to a conductive layer. The presence of 10% SiCN and 90% SiC compounds suggests n-type doping by nitrogen.
coplanar waveguides high-resistivity silicon radio-frequency surface losses