parasonic
Newbie level 3
Hello all,
I am designing a two-layer PCB in Allegro PCB Designer. (My school has a T-Tech machine that this job will be sent to.) I would like to route signals on the top and leave the bottom as a ground plane with a few short routes on the bottom. I have both layers in the stack-up set up as positive artwork signal layers. The bottom layer is a dynamic shape connected to the GND net. If I route like this, the only signals on the bottom layer are GND and vias to GND. If I remove the dynamic GND shape, route, and re-add the shape to the bottom layer, the voids are automatically created, so the traces are on both the top and bottom. However, GND is routed everywhere as a bunch of traces.
Is there any way to allow for a small amount of autorouting nets on the bottom layer, or is this something that I would have to route by hand and set static before autorouting?
Thanks!
I am designing a two-layer PCB in Allegro PCB Designer. (My school has a T-Tech machine that this job will be sent to.) I would like to route signals on the top and leave the bottom as a ground plane with a few short routes on the bottom. I have both layers in the stack-up set up as positive artwork signal layers. The bottom layer is a dynamic shape connected to the GND net. If I route like this, the only signals on the bottom layer are GND and vias to GND. If I remove the dynamic GND shape, route, and re-add the shape to the bottom layer, the voids are automatically created, so the traces are on both the top and bottom. However, GND is routed everywhere as a bunch of traces.
Is there any way to allow for a small amount of autorouting nets on the bottom layer, or is this something that I would have to route by hand and set static before autorouting?
Thanks!