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kicad thermal/ ground stitching vias


aurelcristescu
 

Hello.

I am new to Kicad and I did not find a proper way to resolve these two things:

1) Place thermal vias under a component to transfer the heat to other plane layers (for example connect a QFN with GND pad underneath to an burrier GND plane)
2) Place ground stiching vias to connect TOP and BOTTOM GND layers (like in RF routing).


For issue 1 I have tried to place in footprint definition extra pads on the QFN thermal pad (to simulate vias) but they are connecting to GND plane using thermal contours.

For issue 2 I have tried to select "Add trace" an then "Place via" and is ok (a GND via will place wherever I like) until I do a UNDO which will remove from all vias GND net association (vias will not have anymore a net associated with them).

Do you have any better recommandation for these problems?


Thanks in advance.

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