PDD stands for Physical Design and DFM (Design for Manufacturing) in IC design. It refers to the process of taking a logic circuit design and transforming it into a physical layout that can be manufactured using lithography techniques. The PDD process includes floorplanning, placement, routing, clock tree synthesis, power analysis, timing analysis, and design rule checking. The goal of PDD is to optimize the physical layout of the circuit so that it meets performance requirements while also being manufacturable within the constraints of the fabrication process. DFM considerations are integrated into the PDD flow to ensure that manufacturing yield is maximized and costs are minimized.
