Fundamentals of THz Circuits and Systems in Advanced SiGe HBT Technologies


In the project Dotseven2IC, together with the group of Prof. U. Pfeiffer from the Bergische University of Wuppertal, the aim is to utilize the currently fastest SiGe-HBTs to demonstrate circuits and systems in speed ranges which up to now were not accessible or, compared with III-V semiconductors, only showed a disappointing accessibility. For this purpose interdisciplinary research topics were approached which could lead to a better understanding of circuit behavior in the THz range. These activities encompass the development of suitable methods for modulation, simulation and design of circuits as well as the extension of the technical measurement options in the THz range and also the optimization of transistor characteristics.

IHP's Contribution

IHP's research activities include 3 main topics:

  1. Concept development of the manufacturing process and the transistor layout
  2. Fabrication of a so-called process-design-kit (PDK)
  3. Circuit manufacturing


Dotseven2IC is funded by the German Research Foundation(DFG).

Project Partners

  • Group of Prof. U. Pfeiffer from the Bergische University Wuppertal

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