Void zones are areas on a printed circuit board (PCB) where solder paste is not applied. They are typically created to prevent solder from bridging between adjacent pads or components. However, void zones can also be used to create solder masks, which protect specific areas of the PCB from solder.
There are several benefits to avoiding void zones in PCB design. First, void zones can help to improve the reliability of the PCB. Solder bridges can cause short circuits, which can lead to the failure of the PCB. By eliminating void zones, you can reduce the risk of solder bridges and improve the overall reliability of the PCB.