Semiconductor

Prayon is a recognized leader in high purity electronic-grade phosphoric acid, an essential material for semiconductor manufacturing (ULSI – ultra-large scale integration and VLSI – very-large scale integration). All production and specialized know-how are concentrated at our dedicated site in Switzerland, where our laboratory combines advanced analytical capabilities, automated processes, and rigorous impurity monitoring to ensure outstanding reliability for contamination-sensitive applications.

We work closely with our customers to offer a reactive, flexible, and solution oriented approach. Our cleanroom know how, low particle processes as well as packaging and logistics flexibility make us a trusted partner for semiconductor partners seeking stability, purity, and consistency. Particle control and contamination management are embedded in all our processes.

Sustainability also drives our operations: we support circularity by recycling and revalorizing our acids and by-products, reducing environmental impact.