is there software for mim MODELING

What do you mean mim modeling? Do you mean MIM capacitor modeling. MIM capacitors are a kind of structures encountered much in MMIC and RFIC. MIM capacitors are tough to model. You can use IE3D for high accuracy and high efficiency results for MIM capacitors as well as spiral inductors. You also even use it for a real-time EM tuning and optimization. I am jian from Zeland. Regards.