Hallo,
dein Stichwort ist FEM = Finite Elemente Methoden. Mit anderen Worten
ein Field Solver für Ohmsche Widerstände. Das gibt es sicher,
willkürlich herausgegriffen:
http://www.chipdesignmag.com/pallab/2009/05/21/silicon-frontline-field-solver-accuracy-in-a-production-rc-tool/
Aber googeln kannst du sicher selber.
Gruss Reinhard
PS aus Beschreibung der Fa. IBM:
How does it work?
The suite uses an easy-to-learn, common GUI, but command access is via
common file format, and API input and output is available. Also provided
are interfaces to Cadence Allegro, Catia/ProE, HSPICE, Spectre,
Ultrasim, and Touchstone formats. A simple, command-based framework,
AMOC, is provided for modeling and simulation flow for parameterized
sensitivity analyses.
The tools are as follows:
LCGEN is a quasi-static, three-dimensional solver for inductance L and
capacitance C for rectangles and a limited number of in-plane, diagonal
rectangles. It includes PEEC formulation; it has built in autogridding
and automatic topology generation; it handles high-dimensional aspect
ratios; and a maximum of 100,000 inductive bars have been shown.
RGEN is a three-dimensional resistance solver for DC analysis with an
advanced iterative solution for large, resistive networks. It handles
rectangular shapes; 64 million nodes have been demonstrated; and results
can be given as current, voltage, power, or equivalent network.
RSURF is a three-dimensional resistance solver for DC analysis with an
advanced iterative solution for large, resistive networks. It calculates
DC solution for arbitrary shape structures composed of zero-thick
surfaces, and results can be given as voltage or equivalent network. 14
million nodes have been demonstrated.
....
