Most of the Electronic devices are today built on silicon substrates.

polysicilicon manufacturing Mersen


The silicon element is very common on earth. A dedicated industry is transforming natural silicon oxides into a multi-crystalline and purified form of silicon called the “Polysilicon”.

Firstly, the purification process requires the usage of corrosive fluids such as the hydrochloric acid.

Anticorrosion equipment

⇒ Mersen is providing fully adapted process equipments such as:

High temperature solutions

Moreover, commonly used, the Siemens CVD process, as well as other production processes, is requiring solutions bearing high temperature conditions up to 1500°C.

⇒ Mersen has developed dedicated solutions adapted to customer’s requirements for:

Purity of raw material:


Durability against aggressive atmosphere:


Energy efficiency: