Rigid circuits are a type of printed circuit board (PCB) that is widely used in electronic devices for their stability, durability, and ease of integration into various applications. These circuits are known for their solid structure, which makes them ideal for high-performance, high-reliability applications across industries ranging from consumer electronics to aerospace. https://medium.com/@megapluspcbusa/rigid-circuits-the-backbone-of-electronics-design-f3dc86ae174c