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adding vias to a part (symbol)

CSCNalu

Hi

I'm new to OrCAD and have only done one design so far but I'm trying to figure out how to stick vias into a thermal pad.  I have a QFN design from a friend and I can't tell if he did it as well but I've seen the board it created and he's got tented vias in the thermal pad and I can see from the design files that he's got the solder mask in a pattern and paste mask in a pattern so there's a clear place where the vias go but I don't see them on the package when I open it for edit.  Is there a way to do this or is it done when you're creating the board or was it somehow included into the package pin but I'm not seeing it when I open up the padstack editor?

Thanks

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  • CSCNalu

    Hi All

    Sorry been doing other things but now that I'm back to this, I tried both ways and it looks like the drills get added to the part but the design doesn't seem to respect them as vias:

    They're there but it only shows that it's a hole in my board and not that it's a via with a net associated (to the pin) and whatnot.  Both ways that were mentioned by redwire and excellon1 worked though to put the part in, I just needed to tweak what I'm doing to put it into the pad/part.  Thanks!

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  • CSCNalu

    Hi All

    Sorry been doing other things but now that I'm back to this, I tried both ways and it looks like the drills get added to the part but the design doesn't seem to respect them as vias:

    They're there but it only shows that it's a hole in my board and not that it's a via with a net associated (to the pin) and whatnot.  Both ways that were mentioned by redwire and excellon1 worked though to put the part in, I just needed to tweak what I'm doing to put it into the pad/part.  Thanks!

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