Design, Analysis, and Optimization of DDR2 Memory Power Delivery Network

In this paper, design procedure and analysis method of power delivery network of DDR2 memory chip are introduced. The power delivery network of memory chip is optimized by tuning the location of power/ground chip pad and on-chip decoupling capacitor's W/L size. The results show that the properly designed power/ground chip pads and decoupling capacitors greatly reduce power noise, resulting in the reduction of chip cost by using less area for on-chip decoupling capacitor.