Single-sided printed circuit boards are easily designed and quickly manufactured.
A thin layer of thermally conductive but electrically insulating di-electric is laminated with copper. Solder mask is usually applied on top of the copper. They serve as the most cost effective platform in the electronic industry. Lower cost, especially for high volume orders they are Popular and easily understood by most PCB manufacturers.
Anyhow Single Side Pcb`s are used in Complex areas such as