High Speed Layout Visualization and Lithography Analysis Overview IC WorkBench Plus (ICWB+) is a powerful, hierarchical layout visualization and analysis tool. It provides GDSII/OASIS viewing and editing and high-speed lithography simulation and analysis. ICWB+ is designed to address a variety of lithographic applications, including mask synthesis flow development, optical proximity correction (OPC), model development and calibration, lithography verification error analysis, design rule creation and validation, yield and printability optimization of critical cells, and new process development. ICWB+ provides qualitative and quantitative information on wafer imaging characteristics under varying parameter and process conditions.