I find the following from design kits doc, however I do not under what does it mean.
Marco MOS device usage:
3) MOS with mismatch effect:
Please enable the item "With Mismatch Effect" in CDF form of macro MOS devices. It will
generate the parameter "mismatchflag=1" in the netlist, and the "multi" parameter will
be generated according to the "fingers" item in CDF form. Then mismatch effect
is considered in simulation. Please note that current model does not support mismatch effect
for native devices.
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mismatchflag=1 or 0 should be set during the installation of the design kits. Right now in my design kits, all mismatchflag equals 0.
so unless I reinstall the kits, there will be no mismatch or process variation in the menta carlo simulation. Is that all correct? I have used IBM kits and had no problem with menta carlo simulation.