Product methods generate a -dimensional mesh by multiplying a mesh of
dimension
with a one-dimensional mesh. Numerous variations can
be found which exploit application dependent structural
characteristics. The multiplication is performed by rotation
(cylindrical topology) or by extrusion in the direction of one
coordinate axis. The mesh of dimension
can be of any type with
triangle or quadrilateral elements. From the many possible
combinations one particular approach has proven useful for interconnect
simulations. Structures defined through layout data exhibit
characteristics which can be exploited by the layer-based product method.