I created a filled zone on the top layer of a 2 layer pcb.
It was a ground plane so referenced it as GND.
At each component point on the pcb that was connected to GND (on the bottom layer), it created ‘spider’ connections on the top layer.
Is there a setting to inhibit this behaviour, particularly within a component outline?
I’ve found a way round it by referencing it as GND2 for example, in the schematic editor.
Then create specific testpoints around the board to connect it through to the GND tracks on the bottom layer.
But is there a setting somewhere to stop it normally doing that?
(history…
This came about after some testing, when I needed to add functionality to an already made pcb and use some pins on an IC that had been grounded.
Tracks on the bottom layer can be cut (disconnected from GND) and used in a temporary fashion to connect to the pins, but the links under the IC are impossible to cut without removing the component).
You probably have to press b t regenerate the zone boundaries after changing this setting.
It is also possible to override this setting in either a footprint, or in a single pad.
I remember reading a while back about something that mentioned Thermal reliefs.
But I can’t remember what I was searching for at the time and forgotten/maybe didn’t realise what they were.
I sure wish I had thought about this potential situation earlier.
Never mind.
(A convention adopted a long time ago in the field; we never have an issue or a problem.
‘We have a situation’. ).
).