A: Correct by Construction™. DRC/LVS correct. Minimizes capacitance. User setable RF, differential, shielded nets, power mesh, differential and signal aware density fill, automatic well tap connection, automatic gate protection diodes and antenna rules, double via option. Differential routes shielded. Single-ended shielded routing option (set in schematic). Maximum wire length and area per layer. We currently handle the design rules down to 12nm.