Flex & Rigid Flex PCBs
Flexible circuits, also known as flex PCBs, are printed circuit boards that can be bent, twisted and folded because they have a substrate of flexible polyimide film and one or more thin layers of metallic material (usually copper). The copper layers are chemically etched to produce the desired circuit patterns. Adhesive is commonly used to bond the copper to the polyimide film, but other types of bonding can be used.
