Dynamic Models for Substrate Coupling in Mixed-Mode Systems.

In modern monolithic integrated circuits, substrate coupling is a major concern in mixed-mode systems design. Noise injected into the common substrate by fast switching digital blocks may affect the correct functioning or performance of the overall system. Verification of such systems implies the availability of accurate and simulation-efficient substrate coupling models. For frequencies up to a few gigahertz pure resistive models are considered sufficient, but increasing frequencies of operation imply that capacitive coupling analysis also becomes mandatory.