CORPORATE

2009	:	Co-founder of the High Power Pulse Instruments GmbH
Since 05/2006	:	Infineon Automotive Power Semiconductor Division. Research position with the purpose of obtaining the PhD degree at the Institute for Solid State Electronics, Technical University of Vienna, Austria. Research topic: "System-level ESD in high voltage BCD technologies".
2002 - 2003	:	Visiting year at the Technical University of Munich, Germany.
2000 - 2006	:	Studies in Electrical engineering (M.Sc.) at the Royal Institute of Technology, Stockholm, Sweden.

List of Publications
[1]		D. Johnsson, M. Mayerhofer, J. Willemen, U. Glaser, D. Pogany, E. Gornik, and M. Stecher, "Avalanche Breakdown Delay in High Voltage PN-Junctions Caused by Pre-Pulse Voltage from IEC 61000-4-2 ESD Generators," accepted for publication in IEEE T-DMR (2009).
[2]		Y. Cao, W. Simbürger, and D. Johnsson, "Rise-Time Filter Design for Transmission-Line Pulse Measurement Systems", in German Microwave Conference, pp. 1-5. IEEE, 16-18 March 2009.
[3]		V. Issakov, D. Johnsson, Yiqun Cao, M. Tiebout, M. Mayerhofer, W. Simbürger, and L. Maurer, "ESD Concept for High-Frequency Circuits", in 30th Electrical Overstress/Electrostatic Discharge Symposium, EOS/ESD, pp. 221-227, 7-11 September 2008.
[4]		D. Johnsson, W. Mamanee, S. Bychikhin, D. Pogany, E. Gornik, M. Stecher, "Second Breakdown Behavior in Bipolar ESD Protection Devices during Low Current Long Duration Stresss and its Relation to Moving Current-Tubes", in Transations of the IRPS, 2008,
[5]		S. Frei, W. Wu, U. Hilger, D. Johnsson, and M. Stecher, "Packaging- und Handling-Prufungen nach ISO 10605: Wie vergleichbar sind Prufungen mit unterschiedlichen ESD-Generatoren?" in proceedings of 10th Forum of the Interessengemeinschaft Electro Static Dischage e.V., Munich, 2007, pp. 89-97.