TCAD tasks range from unit-process analysis and device characterization to
yield optimization and technology selection.
With tools and application strategies gradually maturing,
emphasis is being shifted from point-tool applications to fully
integrated and automated VLSI design modeling. Two dimensional
simulation is the regular case, although shrinking device
dimensions
and topologically more complex designs render three-dimensional
simulation more and more important.
Mixed one-dimensional and two-dimensional simulation is still being
used in cases where trends have to be analyzed quickly or extremely
expensive models are being used.