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A methodology for optimizing the selection of decoupling components for power delivery systems of high-performance ASICs

This paper describes an approach for optimizing the selection of de-coupling components for the power delivery network of a high-performance ASIC package. The proposed approach is aimed at reducing the guess-work that is typically associated with the design of an appropriate de-coupling scheme, which meets desired performance targets. It is partly based on constructing a distributed circuit model of the entire power delivery system (package and board) with sufficient spatial (and frequency) resolution, supplemented by exploiting the simple concepts of resonant circuit characteristics over a desired frequency band. The application of the methodology is illustrated for a high-end ASIC package, which has limited package-level and board-level resources.