Single Sided PCBs are the least complicated type of PCB. They are made of a single conductive layer of copper above the substrate.
The electronic components are then soldered or mounted on to one side of the board and the etched circuit can be seen on the other side of the board. This type of PCB has been around for many years and is still the most widely used compared to double sided boards and multilayer boards, if considered by volume alone. Single layer boards are the most cost-effective platform in the industry because they are easily designed and quickly manufactured. In PCB manufacturing, a single sided PCB is made using one layer of insulating dielectric, laminated with copper. Soldermask is usually applied on top of the copper to insulate from the outside world.