Hi, I first wanted to manually adjust the Vth0 of the nch and pch transistors from the foundry's (tsmc65nm) model file (*.scs). Therefore, I copied their model file locally and added its location to my model library. Then, I was able to change the vth0 for a given transistor manually by editing the model file and it does reflect in the simulation. Because I want to assign different vth0 for each transistors, I don't want to have different model file for each transistors (as it would be very tedious). Therefore, I want to introduce my own parameters mydvthn and mydvthp for nch and pch (i.e vth0 = abc mV + mydvthn), vice-versa in the model file and then assign different values for each instances of the transistors using CDF parameters associated with each transistor instances (which I don't know how to do). In other words, I want to keep only one local model library where I can have mydvthn and mydvthp parameters that I can adjust them using CDF parameter. I have tried creating my custom cdf parameters mydvthn, mydvthp (same names as the ones I added in the model file) but they are not reflected on my simulation. The interesting thing is that it works perfectly fine when I create a design variable for the whole schematic and give them the same names, mydvthn and mydvthp. However, again, creating design variables would reflect in all transistors as they all point to the single model file which I don't want. So, How do I create a CDF parameters mydvthn and mydvthp for my transistor instance? It only works if I create mydvthn and mydvthp as a design parameters. My CDF parameter setup for mydvthn and mydvthp is following: devault value : '0', parse as CEL : 'yes', parse as number: 'yes', editable condition: 't', units: 'voltage' Cadence Version: 6.1.5-64b
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