Synopsys announced Proteus LRC (lithography rule check) for lithography verification. Proteus LRC is a post-optical proximity correction (OPC) verification tool. It enables fast and accurate hotspot detection across the process window for full-chip mask validation within the highly-scalable Proteus Pipeline Technology. Synopsys Proteus LRC is designed for 28-nanometer (nm) and below. It features OPC models and rigorous first-principle models from embedded Sentaurus Lithography technology. Proteus LRC is integrated into the Proteus Mask Synthesis flow.