1. Fraunhofer Institute for Integrated Systems and Device Technology (IISB), Erlangen , Germany
2. Fraunhofer Institute for Algorithms and Scientific Computing (SCAI), Sankt Augustin , Germany
3. Division Design Automation of the Fraunhofer Institute for Integrated Circuits (IIS/EAS), Dresden, Germany
4. Fraunhofer Institute for Industrial Mathematics (ITWM), Kaiserslautern, Germany
5. Institute for Microelectronics of the Technical University Vienna, Vienna, Austria