Our Products

Polycrystalline silicon is the key material for IC chips. The high performance of such chips was made possible by polycrystalline silicon developed by Tokuyama with a purity of 99.999999999% (eleven 9s), the highest level of purity in the world. Highly regarded by the semiconductor industry for its quality and reliability, Tokuyama is one of the world’s leading manufacturers of polycrystalline silicon.