AnsweredAssumed Answered

Plane and Vias clearance

Question asked by kollateral on Dec 5, 2018
Latest reply on Dec 5, 2018 by johnduquette

Hi all,


I have a problem that I can't figure out by myself, actually.

I've defined a Clearance rules between two classes (GND & Power) in the Constraint Manager (I'm using PADS VX, Integrated flow).

Now the point is that, when I flood the GND in two different layers, in one of them the rule that I made is applied and observed correctly, in the other layer is not.

The fact is that the layer in wich the rule works good is the one in wich the Power traces are routed, and the Clearance is respected.


In the other layer, I still have the GND flooded everywhere but no traces are attached to those vias.

I'll attach a couple of pictures that should clarify enough the situation.


I don't know what to do right now, because obiously I'm getting some errors when I launch the DRC (you can see the error marker in the second image).


The clearance is set to 0.5mm. In the second image if you count the grid dots you'll find it's actually like 0.45mm, dunno why....


Thanks for any help.