Deep Submicron Power/Ground Networks Design for a Multi-Macro Chip

With the rapid increases of signal frequency and reduction of feature sizes of high-speed electronic circuits in modern VLSI design, it is becoming more and more important to design and optimize power/ground networks fast and efficiently. A method for the design of the power/ground networks at the floor-planning stage is presented, which calculates the number of pads and straps and width of straps first, and then optimizes the power/ground networks considering the Macro´s power consumption. Experimental results based on the digital television transmitter modulator design show that final IR drop is within the required range and the method is efficient and reliable.