Threshold voltage Calculation
I would like to add a new column 'Vth' in my table with the following calculation:-First I need to find the index i of column 'IDS' where the 'IDS' is nearest to 1e-9 (or Log10[IDS] = -9); and then Vth = VGS(i). It should be grouped by Site, Measurement, SWP, Device, Wafer columns as well. That is, each unique combination of Site, Measurement, SWP, Wafer, Device will have one Vth value.One techniq...