STA Mastery · All levels
STA Glossary
Shared vocabulary for timing, constraints, and signoff.
Terms to use precisely
WNS: worst negative slack — most critical failing path.
TNS: total negative slack — sum of violations.
Setup: max-delay check; Hold: min-delay check.
MMMC: multi-corner multi-mode analysis.
OCV/AOCV/POCV: on-chip variation modeling approaches.
SPEF: parasitic netlist for STA delay calculation.
ECO: engineering change order — timing fix.