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To use fast EM, You should invoke mgrid program(IE3D).
Thanks. And what's the next step(s)? How do I get via parameters to be modifyable (as shown in the screenshot)?
It's a bit of long t odescribe you-can-go steps for 3D Via parameter sweeping if you are not familair with Mgrid's modeling and settings. Basically it can be done as following steps
1)use IE3Dlibrary utility to create a 3D via constructure because the modeling is object-oriented so you define all variables for length/width and void etc.
2)use Mgrid to run it.
If you wanna master how to use Mgrid, I think you better contact Mentor for hands-on tranning. If you just wanna optimize your via, it's better to simulate full chain because there is no one answer which size of via is best without the context. Better trust me!
Again, Fast EM need lot of comupter resources, it will take very long time to get results if you are trying to exploring all via's parameters.
Thanks a lot... I think I will trust you