multi-layer PCB

A multi-layer PCB (Printed Circuit Board) is an electronic circuit platform made up of three or more layers of conductive material separated by insulating layers. This design allows for more complex and compact circuit layouts, enabling many components and connections to fit into a small space. Think of it like a sandwich, with multiple layers stacked and connected internally, which improves performance, reduces size, and increases reliability for advanced electronic devices such as computers, smartphones, and industrial equipment.