Profile: SI-TECH, Inc specializes in silicon wafers. We can supply silicon wafers of any specifications for test, monitor and prime material. We have a large selection of diameters, type/dopants, orientations, resistivities, thicknesses and grades. We offer various wafer processing services including ion implantation, polishing, photolithography, chemical vapor deposition (CVD & LPCVD) services on substrates up to 8"/200mm including a few 12"/300mm diameter capabilities. We also sell gallium arsenide and germanium wafers as well as sputtering targets & thickness gages. We also deal with optical materials which include sapphire, quartz, glass, zinc sulfur, zinc selenium, cadmium and tellurium.