I’ve created a part for an SMD device (actually a carrier board, an ESP-12), but apparently I’ve done something wrong with my PCB layers.
I added copper pads to both top and bottom layers, under the assumption that Fritzing would supply the copper to connect the top and bottom layer, just as it does for through-hole components.
Nu such luck: when I use the part I get pads on both top and bottom layers of the PCB, but they’re not connected.
I presume things would have worked correctly if I had only added copper to the top layer (would it?), but could I also have instructed Fritzing that I want the top and bottom layer connected?
And why does the autorouter think that the top and bottom pads are connected? Because it’s routing some of my connections on top, and some on the bottom…