Topsil has more than 50 years’ experience in the silicon business. We are the only silicon supplier in the world, who has specialised exclusively in floatzone silicon. And our expertise is reflected in the quality of our products.

Topsil is a silicon manufacturer focused on manufacturing high purity silicon using leading edge float zone technology. With a strong focus on R&D and a close cooperation with customers Topsil has continuously been able to drive the float zone technology forward, by developing new processes and products to meet customer demands. The introduction of HiRes™ and PV-FZ™ create a new generation of float zone products addressing new growth markets.