International Symposium on Low Power Electronics and Design · 2013 · 19 citations · 17 references
EngineeringComputer EngineeringElectrical EngineeringLow-power DesignMicroelectronicsSemiconductor DevicesCmos Circuit DesignDevice ScalingIntegrated Circuit DesignLow-power Digital Circuit DesignPower OptimizationSubthreshold Circuit DesignCmos Logic DesignLogic OptimizationLow-power Logic DesignMinimum Energy PointMismatchRobustnessSubthreshold Cmos DesignSubthreshold Operation
Minimum energy per operation is typically achieved in the subthreshold region where low speed and low robustness are two challenging problems. This paper studies the impact of Back Biasing (BB) schemes on these features for FDSOI technology. We show that Forward BB can help cover a wider design space in term of optimal frequency of operation while keeping minimum energy. Asymmetric BB between NMOS and PMOS can mitigate the effect of systematic mismatch on Minimum Energy Point (MEP) and robustness. With optimal asymmetric BB, we achieve either a MEP reduction up to 18% or a 36× speedup at the MEP.
17
The effective drive current in CMOS inverters
Mulun Na, E. Nowak, Wilfried Haensch et al. · 2003 · 238 citations
Engineering, Computer Engineering, Electrical Engineering +17