The semiconductor field is rich in technological diversity. Devices and integrated circuits may be fabricated on silicon, gallium arsenide (GaAs), silicon germanium (SiGe), silicon on insulator (SOI), silicon on sapphire (SOS), and silicon carbide (SiC), mercury cadmium telluride (MerCaT), indium gallium arsnide (InGaAs), to name a few, and in technologies ranging from 0.5um to 7nm. Add to this, package technologies ranging from ceramic, metal case, chip scale, and plastic packaging.