Using a P&R tool’s built-in fill function to place filler cells during implementation is not only time-consuming, but can create layouts that do not comply with design requirements. The Calibre YieldEnhancer PVReady flow ensures correct-by-construction filler cell, DCAP, and ECO cell insertion during P&R in less time, using standard industry interfaces that seamlessly integrate with both the P&R and physical verification tools. In addition, because filler cells must be replaced throughout the design process, the runtime reductions are additive, which can significantly reduce time to tapeout.