Prof. Leo Lorenz  
Infineon Technologies
Munich/ Shanghai

Prof. Dr. Leo Lorenz received the Dipl. Ing. Degree from TU-Berlin and the Dr.-Ing. Degree from the University of Munich, Germany in 1976 and 1984 respectively. From 1976 til 1980 he was with AEG,

R&D – center for Power Electronics- in Berlin. In 1984 he joined Siemens Semiconductor Division which became Infineon Technologies AG in 1999. Since this time he has been working on Power Semiconductor & Power IC’s in different functions and responsibilities. In his current position, as a senior principal he is responsible for system engineering of all automotive and industrial technologies and for the time being located in Shanghai. He published over 250 technical papers and has many patents in these fields. In 2001 he was nominated to become Professor for System Integration at the University of Ilmenau (Germany). He is the president of the ECPE (European Center of Power Electronics), an IEEE Fellow, a member of German Academy of Science and received several best paper and innovation awards.

 

New Power Semiconductor Devices for Renewable Energy Converters
- Start of the Art and Future Development Trends-

 

 Abstract: Power Semiconductor devices are the key element of power conversion systems  despite of the fact that their costs are minimal in many applications relatively to the overall system cost. Extended Silicon utilization, system reliability, power units miniaturization and overall operating efficiency are the key factors.

 In this presentation new device concepts based on silicon and SiC material, advanced and packaging and interfacing technologies for power conversion systems in renewable energy generation such as wind power and solar power will be presented.

 Beside, the excellent switching characteristics, outstanding short circuit and overload capability as well as robustness during dynamic performance will be discussed. Future trends towards higher junction temperature will require new joining and packaging technologies.