Feature:

A rigid PCB is a circuit board made from solid materials like fiberglass or epoxy resin. This type of board is stiff and does not bend. It includes layers such as conductive copper paths, insulating materials, and a strong base. 

Rigid PCBs are essential for supporting various electronic components, making them important in many applications.  

Layer count: 1-40+ layers;

Materials: FR-4 (standard), FR-4 High-Tg, Aluminum, Rogers, and other special materials;