Patent ID: 8473885

Claim:
A computer program product for integrated circuit (IC) design, said computer program product comprising a computer usable non-transitory medium having computer readable program code stored thereon, said computer readable program code comprising: computer readable program code means for receiving a circuit description of an integrated circuit (IC) design and representing portions of said IC design in a grid and glyph format; computer readable program code means for checking grid and glyph portions; computer readable program code means for generating a target layout from each checked one of said grid and glyph portions; computer readable program code means for converting said target layout to masks comprising: computer readable program code means for generating mask shapes from a prepared said target layout, computer readable program code means for generating wafer contours from generated said mask shapes, computer readable program code means for extracting circuit models from generated said wafer contours, and computer readable program code means for generating expected IC electrical parameters from said circuit models; and computer readable program code means for selectively replacing ones of said portions with previously cached results.