Is it ok to simulate 3d mosfet with the way of simulation 2d MOSFET? I’ve simulated 2D MOSFET using common “devsim” way (just with gmsh_mos2d.py & ramp.py files)
If it is ok, How can i avoid “Convergence Failure” error ? everytime i try to get Id_Vgs curve, “Convergence Failure” error occurs at solve(type=“dc”, absolute_error=1.0e30, relative_error=1e-5, maximum_iterations=30) line or rampbias function lines. l’ve already read some topics about this error and i tried all of solution, but there was no change.
If it is not ok, please let me know how to Simulate 3D MOSFET and get some Id Curves.