X-FAB Silicon Foundries SE

X-FAB Silicon Foundries SE makes chips designed by its customers. The holding company is Belgian, while its operating headquarters are in Erfurt, Germany. Its factories specialise in technologies that connect electronics to the physical world, including automotive, industrial and medical applications.

Customers buy wafer manufacturing and process support. Analogue circuits handle signals such as voltage and temperature; mixed-signal chips combine that work with digital logic. X-FAB also offers technologies for sensors, photonics and power semiconductors. It is a manufacturer with its own factories, not simply a chip-design company.