... , Heat sinkers and Thermocouples, Semiconductor Wafer Carriers, Electrical Insulators, Thin film Deposition, Transparent Electronic Substrate, Silicon on Sapphire Wafers, Superconductor Substrate. 1 ... . (-1 1 0 2) R-Plane Sapphire Substrate:- GaAs wafer carriers- Microwave IC- SOS (Silicon on Sapphire)- High Speed IC- Pressure Transducerc. (1 ...