ahmed edris
Newbie level 2
There is level one mosfet model in ahdl lib in cadence ''mos_level1'' I want to know if the equation for threshold voltage is correct in the model. It is given as
if (vbs > 2*phi) begin
vth = vto + gamma*sqrt(2*phi);
end else begin
vth = vto - gamma*(sqrt(2*phi - vbs) - sqrt(2*phi));
end
if (vbs > 2*phi) begin
vth = vto + gamma*sqrt(2*phi);
end else begin
vth = vto - gamma*(sqrt(2*phi - vbs) - sqrt(2*phi));
end