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The diode mismatch parameters I your presentation show a wide variation of threshold (.39V vs .53V) and a zero difference in resistance (0.25 ohms vs 0.25 ohms).
I have included my previous lab data on just six diodes which shows just the opposite: a threshold that is very close (Varying by only 0.30V) and a resistance that is wide (0.28 ohms vs 0.40 ohms).
Given that in the short channel case, the threshold offset is the major contributor to offset currents, I think we should change the values for the diode mismatch.
Diode Mismatch Parameters .pdf
Description: Adobe PDF document