Static Power Reduction Using Variation Tolerant and Body Biased Multi-mode Power Switches

A power-gating scheme was presented to support multiple power-off modes and reduce the leakage power during short periods of inactivity. However, this scheme can suffer from high sensitivity to process variations, which impedes manufacturability. Recently the multi-mode power-gating technique that is tolerant to process variations and scalable to more than two intermediate power-off modes. In this paper a new power-gating architecture with body biasing technique to reduce the leakage power. Analysis and extensive simulation results demonstrate the effectiveness of the proposed design.