I have a 4 layer design, Top, layer2, layer3, bottom.
Now I want to place GND vias on a ground polygon. Layers Top and Bottom both are a complete ground plane (Polygon)
I was wondering; What is the most effective way to place this GND via and what are the differences?
I realise that on the first picture, the GND via is connected to the top layer polygon. And on the second picture it is both connected to the Bottom and Top layer polygon.
FYI, looking at the Eagle design the GND vias are not ''repoured'' as they are on Altium.
Again, I am nog experienced with Altium. Maybe there is a setting which lets me place these GND vias as they are on Eagle. (If that is a correct method)
Best Answer
You place a via and assign it to the ground net. That's it.
If you are lazy, like me sometimes, I sometimes place the via directly on the net I want the via to be - this can be another trace, polygon, even a pad (and then move it later) - and Altium will automatically assign the via's net to whatever net you placed the via on.
You should probably change your rules so that vias don't add thermal reliefs. You'd want direct connect (unless you plan on soldering things to it).
Create a rule similar to the image below, and that will make all your vias direct connect.