https://gekunflex.com/double-sided-flex/ Double Sided Flex PCB A double-sided flexible PCB is a flexible board that uses a Double-Sided Flex Substrate and undergoes an etching process to have circuit patterns on both sides.. These boards allow for electronic components and circuit connections on both sides, enabling higher circuit density and more complex designs. They are used in applications that require compact and flexible circuit layouts, such as mobile devices, communication equipment, medical devices, and industrial controls. Gekunflex delivers high-quality services to fulfill your order requirements with excellence.