Circuit Board Composition

Circuit board composition

The circuit board is mainly composed of pads, vias, mounting holes, wires, components, connectors, filling, electrical boundaries, etc. The main functions of each component are as follows:

Pad: A metal hole used for soldering component pins.

Vias: There are metal vias and non-metal vias, among which metal vias are used to connect component pins between layers.

Mounting hole: used to fix the circuit board.

Wire: The electrical network copper film used to connect the pins of the components.

Connectors: components used to connect between circuit boards.

Filling: Copper coating for ground wire network, which can effectively reduce impedance.

Electrical boundary: used to determine the size of the circuit board, and all components on the circuit board cannot exceed the boundary.