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