Siltronic AG

Positioned as one of the world’s leading manufacturers of silicon wafers with diameters up to 300 mm, Siltronic partners with many preeminent chip manufacturers and companies in the semiconductor industry.

All over the world, wafers made of hyperpure silicon form the basis of the highly complex semiconductor elements driving high voltage applications, low-resistivity circuits for automotive engineering and telecommunications, as well as highly integrated microprocessors and memory components for information processing. Without silicon wafers, everyday objects such as smartphones, computers, navigation systems, and displays, would be inconceivable. At the same time, the demands made on today’s modern wafers are more varied and individual than ever before.

We address these multifaceted demands with our product portfolio and customer-focused processes and we work each and every day to make what is already good just a little bit better.

Internationally positioned and aligned, as a global market leader we supply the global semiconductor industry with the highest quality silicon wafers. Employing a workforce of around 4,000 members of staff, Siltronic commands a global network of advanced, leading edge production plants in Europe, Asia and the USA.

Logo of Siltronic

Siltronic AG
Hanns Seidel Platz 4
81737 München


With its background on silicon wafer and as an experienced GaN-on-Si epi manufacturer Siltronic provides improved silicon substrates and GaN-on-Si wafer for GaN RF device development (WP3).

Key Contribution

In UltimateGaN Siltronic will evaluate options for RF loss reduction of the GaN RF device by optimising the Si substrate, the epitaxial GaN buffer and the functional layer properties.