There are lots of options depending on your final aim. I have listed few of them below:

1. nextnano (http://www.nextnano.com/)

2. Quantumwise Atomistix ToolKit (ATK) (http://quantumwise.com/)

3. SILVACO TCAD (http://www.silvaco.co.uk/products/tcad.html)

4. tiberCAD (http://www.tiberlab.com/tibercad-multiscale-simulation.html)

You can explore their websites and find more information and even trial downloads.

http://www.nextnano.com/

http://quantumwise.com/

http://www.silvaco.co.uk/products/tcad.html

http://www.tiberlab.com/tibercad-multiscale-simulation.html

Try Lumerical Solutions. https://www.lumerical.com

you can get 30 days trial license and try it out.

There are lots of options depending on your final aim. I have listed few of them below:

1. nextnano (http://www.nextnano.com/)

2. Quantumwise Atomistix ToolKit (ATK) (http://quantumwise.com/)

3. SILVACO TCAD (http://www.silvaco.co.uk/products/tcad.html)

4. tiberCAD (http://www.tiberlab.com/tibercad-multiscale-simulation.html)

You can explore their websites and find more information and even trial downloads.

http://www.nextnano.com/

http://quantumwise.com/

http://www.silvaco.co.uk/products/tcad.html

http://www.tiberlab.com/tibercad-multiscale-simulation.html

I tried in the past many of those SW (black box), i'll recommend you to make your own one using Comsol multiphysics.

A.

Sentaurus by Synopsys is strongly relevant, and mainly used by designers, foundries and universities, as illustrated in the joined link for FinFET devices 

http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6532108

which from the above free tools to finfet predictive model files generation??