Hierarchical Simulation of Substrate Coupling in BiCMOS Structures Using the Boundary Element Method

  • Thomas Brandtner
  • Robert Weigel
Conference paper
Part of the Mathematics in Industry book series (MATHINDUSTRY, volume 4)


A novel substrate coupling simulation tool named SubCALM is presented. It is well suited to floorplanning of large mixed-signal designs since it exploits the boundary element method and contains a Poisson solver based on a hierarchical O(n) conjugate gradient algorithm. Sophisticated preconditioners are applied, which further increase the computation speed by a factor of about 10. The approach is verified by experimental results in a 0.25 μm BiCMOS technology.


Boundary Element Method Injection Point Guard Ring Admittance Matrix Poisson Solver 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2004

Authors and Affiliations

  • Thomas Brandtner
    • 1
  • Robert Weigel
    • 2
  1. 1.Development Center GrazInfineon TechnologiesAustria
  2. 2.University Erlangen-NurembergErlangenGermany

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