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Acknowledgements

I would like to express my sincere gratitude to everybody who made it possible for me to do my work under such special conditions. It was a very favorable circumstance to work with a combination of state of the art devices, computer and measurement equipment and, foremost, a large number of excellent colleagues.

First I wish to thank my advisor Professor Siegfried Selberherr for the continuous support of this work. I greatly appreciated the opportunity to stay at the Institute for Microelectronics in Vienna many times where I could participate on the outstanding working environment. I would like to thank all members of the Institute for the very good atmosphere during my visits.

Foremost I would like to express my appreciation to Thomas Simlinger. Many results of my work would not have been possible without the continuous support of him and his colleges Martin Knaipp and Martin Rottinger. Special thanks to Hans Kosina, Christian Köpf for fruitful discussions and the willingness to proofread this thesis.

It is thanks to Dr. Walter Kellner that the III-V simulation was continuously supported by the corporate technology of Siemens over many years. My sincere gratitude to Thomas Grave who merged into the technical backbone for all questions on HEMTs. I also have to thank Andreas Werthof and Heinz Siweris for many fruitful discussions on circuit issues and help with parameter extraction as well as "Bill" Stemmer and Harald Tischer for many measurements.

When I didn't know why anything on the computer network was working it was most likely due to Rolf Neumann. Special thanks for so much informal help.

Despite all the outstanding practical support given to me this work would have been impossible without the love and patience of my parents and foremost of my wife Imke.


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Next: 1 Introduction Up: Dissertation Helmut Brech Previous: Kurzfassung


Helmut Brech
1998-03-11