Hello! I designed a hybrid circuit consisting of MOSFET and Single Electron Transistors. For this, I used the model BSIM4.8.0. 65nm. I want to use a "smaller" transistor. So, with a little help from this site, I found one... At least, a hypothetical one... The PTM 45nm. The problem is... In the parameters, i find: Level=54. So, I take an "empty" transistor from the pspice library breakout, the MbreakP (let's assume I need pmos). Now... When I copy and paste the parameters, it pops an error in simulation. An error regarding the level in the parameters. So i change it from level 54 to level 9. Does it make any significant difference? And if so, what "empty" model from the breakout library should I use to succesfully simulate the PTM of level 54? (Also, can you propose any transistor models below 65 nm technology and provide me if possible the txt with the parameters?) Thank you very much in advance.