Siltronic AG, together with its subsidiaries, engages in the development, production, and marketing of hyperpure semiconductor silicon wafers in Germany, rest of Europe, the United States, Taiwan and Mainland China, Korea, and Rest of Asia. It offers polished and epitaxial wafers. The company also provides special products, such as Ultimate Silicon, an optimal crystal for polished wafers; PowerFZ, a wafer product based on the float zone method; and HIREF that offers low microroughness, and low-defect surface structure. Its products are used in smartphones, tablets, PCs, flat screens, sensors, industrial equipment, electric cars, wind turbines, and other applications. The company was formerly known as Wacker Siltronic AG and changed its name to Siltronic AG in 2004. Siltronic AG was founded in 1953 and is headquartered in Munich, Germany.