I've just had a PCB manufactured for me, but it seems like the solder mask is only applied to where the copper is. I'm trying to figure out if it's my fault or not.
According to my understanding there supposed to be solder mask everywhere on the board except the places in red (pads/vias ect...). Am I correct ?
Here is how the GTS layer file looks like:
Note that yellow solder mask was chosen. I haven't seen the PCBs in person but it sure looks like no solder mask to me. But perhaps I'm just stupid/blind.
Here are photos the pcb: