Hyperpure silicon wafers are the basis for the vast majority of today's semiconductor devices. Hence, silicon wafers are indispensable for the production of nearly all electronic devices. Depending on the use, they are made in several diameter sizes and thicknesses with various doping additives and surface finishes.

Siltronic’s product portfolio ranges from epitaxial to non-polished wafers with diameter sizes up to 300 mm. The wafers are manufactured from silicon monocrystals which are made either in a Czochralski crystal growing furnace or by using float zone technology. The surface finish of the wafers is determined by a variety of manufacturing processes tailored exactly for each purpose ranging from as-sawn, as-lapped or as-etched to polished, thermally treated and epitaxial coated.