part i
.model nch nmos LEVEL=1 TOX=80 VTO=0.6 KP=190.0e-6 LAMBDA=0.02
+GAMMA=0.094 PHI=0.6 
*------------------------------------------
vin 3 0 0.963
vdd 1 0 5
R 1 2 10K
M1 2 3 0 0 nch L=10u W=200u
*------------------------------------------
.op
.tf V(2) vin
.end