请问，slvt和lvt有什么区别？

which foundry, which node, 40nm or 28nm?, if tsmc, I think should be ulvt and lvt
in that case, ulvt = ultra lvt. faster and leakier than lvt devices

which foundry, which node, 40nm or 28nm?, if tsmc, I think should be ulvt and lvt
in that case, ulvt = ultra lvt. faster and leakier than lvt devices

slvt more fast thanlvt ,higher leakage than lvt