Volker received his M.Sc. degree in Electrical Engineering from the Ruhr-University Bochum in 1986. From 1986 until 2000 he worked for Tesat and its predecessors as an ASIC Designer for full custom high speed digital bipolar circuits, analog and complex digital CMOS ASICs for telecommunication applications. Since 2000 he heads the ASIC development team of Tesat as well as the electrical and radiation analysis team and concentrates on the evolution of the ASIC development process with special focus on mixed signal devices and consideration of radiation effects.