Rigid-flexible circuits, or rigid-flex circuits, are an innovative solution that combines the benefits of both rigid and flexible printed circuit boards (PCBs). These hybrid circuits are designed to offer the durability and structural support of rigid PCBs while also providing the flexibility of flexible PCBs. https://medium.com/@megapluspcbusa/rigid-flexible-circuits-combining-the-best-of-both-worlds-in-electronics-f3a95601f92e