Double-sided printed circuit boards constitute the simplest and most versatile technological solution.
They are also less expensive and more popular than any other type of printed circuit board.
The layout is achieved on the two outer layers of the PCB and essentially poses no limits to complex designs.
All finishes can be implemented, as well as all types and colours of solder masks, both matt and glossy.
Before envisaging more sophisticated technological solutions, we always recommend you check whether a double-sided PCB could meet your design requirements.