How to change the parameters in virtual MOSFETs

[bigcow]

I have been using Multisim for quite a while. I find that in Multsim 8 & 9, I can't change the model parameters in Virtual MOSFETS,  like VTO,
KP,GAMMA,  PHI and  LAMBDA, etc. I could do this in Multisim 7, is there an explanation for that? or is there something hidden there?

Thanks in advance for your attention.

[Bhavesh]

In Multisim 8 and Multisim 9 the Virtual MOSFET dialog box was actually simplified and that is the reason why the "Edit Model" button you are used to is no longer there. The dialog box is such that it mimics the information available on a data-sheet and therefore setting up the physical characteristics of the device is done quite quickly. This in-turn generates the simulation model for the virtual device. With the Edit Model button you are accomplishing a similar task, however you did so by playing around with SPICE parameters which is less intuitive.

For now, if you wish to control the properties of a device wholly, I would recommend that you take a pre-existing real MOSFET model and then edit its parameters with the appropriate SPICE parameter values (such as GAMMA, LAMBDA etc...)

I hope this helps.