Rigid PCBs for Defense, Medical, Automotive Products and More
Rigid PCBs can be single sided (one copper layer), double sided (two copper layers) or multi-layer (outer and inner layers). Conductors on different layers are connected with vias. Multi-layer Ridgid PCBs allow for much higher component density. FR-4 glass epoxy is the primary insulating substrate. A basic building block of the Rigid PCBs is an FR-4 panel with a thin layer of copper foil laminated to one or both sides. In multi-layer boards multiple layers of material are laminated together.