@Tim Edwards I have finally done a clean install of

open_pdks

, removed the

share/pdk

altogether to avoid old ghosts, recloned from scratch the repository, and done configuration and install. Tested mismatch simulation (20 runs) for

nfet_01v8, nfet_01v8_lvt, nfet_g5v0d10v5, nfet_03v3_nvt, nfet_05v0_nvt

and

pfet_01v8_lvt, pfet_01v8, pfet_g5v0d10v5, pfet_01v8_hvt

. The simple test simulation measures the

Vgs

at

1uA

for all transistors in 20 consecutive runs. All transistors show variations. So I don't know why my previous install was broken.

@Tim Edwards A quick test on

res_iso_pw

and

res_xhigh_po_0p69

shows indeed that the resistor value is identical in all mismatch runs. I have inserted the resistors, biased at 1uA like the transistors and measured the voltage across them. May be some other switches needs to be set. Not looked at the model files yet.