dhaval4987
Full Member level 3
Hey all
If I just want to test the circuit behavior at different corners- just a coarse analysis- and not Monte Carlo, what and how should i change parameters?
I understand that SS means NMOS and PMOS both slow and FF means both fast... but is there any correlation in between the amount of change of Vth of one with Vth of the other?
I mean, If I increase Vthn, then by what amount should I increase Vthp for SS? how about SF, FS and FF Vice Versa?
Also, when I try to change 2 or more parameters at a time, how do I know where my device falls in the curve? (Example- changing Vth for both NMOS and PMOS, and then changing Vdd and Temperature- how do I determine the corner of operation- for example is it faster than FS or slower then SF or faster then SF and like wise!?)
If I just want to test the circuit behavior at different corners- just a coarse analysis- and not Monte Carlo, what and how should i change parameters?
I understand that SS means NMOS and PMOS both slow and FF means both fast... but is there any correlation in between the amount of change of Vth of one with Vth of the other?
I mean, If I increase Vthn, then by what amount should I increase Vthp for SS? how about SF, FS and FF Vice Versa?
Also, when I try to change 2 or more parameters at a time, how do I know where my device falls in the curve? (Example- changing Vth for both NMOS and PMOS, and then changing Vdd and Temperature- how do I determine the corner of operation- for example is it faster than FS or slower then SF or faster then SF and like wise!?)