Hello everyone and I am t

Question

Hello everyone < Stefan Schippers> and < Tim Edwards> I am trying to do some characterization with the cap mim 2p0fF capacitor of the gf180mcuC pdk But I have some issues with the devices switch sym and switch ngspice sym Follows the schematic and the errors that I am obtaining I could not find documentation regarding those elements

Stefan Schippers · Answer

The correct model for the capacitor is `cap mim 2f0fF` I have submitted a pull request with the correction upstream on Apr 23 In the mean time you can change the model manually

Stefan Schippers · Answer

For the switch use `switch ngspice sym` you need to provide a ` model` for this to work like ` MODEL switch1 SW VT=0 5 VH=0 01 RON=0 01 ROFF=10000000 `

Juan Sebastian Moya · Answer

Thank you Stefan

Juan Sebastian Moya · Answer

< Stefan Schippers> I solved the switch model problem with the information that you provided me However the cap error is maintained I change manually the name of the model as you suggested but same error appears in the ngspice console

Juan Sebastian Moya · Answer

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Juan Sebastian Moya · Answer

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Stefan Schippers · Answer

Check if you are including this file ` lib path to sm141064 ngspice mimcap typical` The path must match your installation of the gf180mcu models

Juan Sebastian Moya · Answer

< Stefan Schippers> yes the path is correct and I think I am including the file that you mention Kind regards

Stefan Schippers · Answer

Sorry i was mistaken The line to add is this also ` lib path to sm141064 ngspice cap mim`

Juan Sebastian Moya · Answer

Hi < Stefan Schippers> it works Thank you