Hi :
i am facing how to get the subthrshold swing when i calculated the gated device, i found there are one formular(see attachment):
as we know, ATK software can directly get Id at some Vg, so i think the first equation is convenient for me.
but i am wondering at which Vd, should i calculated Id vs.Vg?
some reference said Vd is the drain biased at saturation, some reference said set x eV , not specified why choose the Vd,
So, would anyone tell me how to choose Vd, it is necessary it is saturation?
thanks very much!!
