QuantumATK Forum

QuantumATK => General Questions and Answers => Topic started by: njuxyh on August 23, 2016, 13:57

Title: how to extract the subthreshold swing (SS)
Post by: njuxyh on August 23, 2016, 13:57

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!!