一、Multi-Vth Optimization:
Run multi-Vth optimization only after your design meets timing.
method:
reportPower -leakage
1、optLeakagePower: This command resizes low voltage threshold gates in the design to gates with a higher voltage threshold, while maintaining timing. This command only resizes cells that have positive slack. Cells that belong to any library are candidates for swapping.
setOptMode can set the effort.
2、optDesign
setOptMode -powerEffort high/low after placeDesign
二、Substrate Biasing
Changing the body voltage of the field effect transistor (FET) affects both the threshold voltage and the static leakage current.
method:
addWellTap