Move into the new millennium. You don't need to do that 1990's stuff. Our tool uses a tech file. Our tool understands polygate to contact distances, polygate extension beyond diffusion, salicide layers, etc. The layout editor and router work with these structures to make automation easy. For FETS, we generate the bsim4 parameters AD, AS, PD, PS, SA, SB, SCA of the actual layout AT ALL TIMES based on abutment, well distances, etc. We also generate automatic common centroid differential structures with a symmetrical guard ring and gate protection diodes. You think you have an advantage with YOUR pcells. YOU DON'T. Our pcells are created with tool knowledge based on manual editing, automatic placement, and automatic routing.