|The core material of a PCB which is often a type of fiberglass known as FR4.
|To help route signals throughout the board, several layers of copper are used.
|This layer helps protect the copper from exposure, and also provides a guide for soldering components.
|This layer includes symbols, labels, and other details to help with assembly and recognizing the placements of components.
|These are the actual “wires” in a PCB that connect different components.
|A metal-filled hole that connects several layers of copper in a multilayer PCB.
|Surface copper connections where components are soldered onto.
|Items like capacitors, resistors, and integrated circuits that get soldered onto the PCB.