Multilayer PCB,Double-Sided PCB,Single-Sided PCB

Multilayer PCB,Double-Sided PCB,Single-Sided PCB

Multilayer PCB printed circuit boards

Multilayer PCBs can support a high level of circuit complexity because they consist of three or more copper layers laminated together. The manufacturer starts a core that has the same materials as a typical single-sided or double-sided PCB. After etching the inner core, they add layers of prepreg, a soft fiberglass. This material keeps the layers together and becomes hard fiberglass after the board goes through a hot press. As a result of the curing process, multilayer PCBs are tough and durable. If the manufacture is building a 4 Layer pcb they typically will use one core, prepreg and they copper foil for the top and bottom layers.

Double-Sided PCBs

Making double-sided PCBs involves the same kinds of layers as a single-sided board. However, instead a single sided copper core, the manufacture will start with a core with copper on both sides. During production, they also drill holes called vias that they can plate or fill with a conductive, or non conductive material. The electrical current travels from one side of the board to the other through these vias. Double-sided PCBs have a higher cost than single-sided boards, but they provide twice as much space for components.

Electronics that need an intermediate level of circuit complexity use double-sided PCBs to operate. Double-sided boards power more complicated devices than single-sided PCBs, but they can’t handle advanced applications like computers or smartphones. They appear in electronics such as:

LED lighting

Vending machines

Car dashboards

Phone systems

Industrial controls

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Single-Sided Boards

A single-sided PCB is simple and affordable to produce. The manufacturer begins with a base core material, such as fiberglass (FR4), which the core has a layer of copper on it. This copper material makes the board conductive and allows electricity to flow through. Then, they add a solder mask that insulates the conductive copper sheet below. Finally, they cover the rest of the layers with a silkscreen print that indicates the location for each part. When creating a single-sided board, the manufacturer adds these layers to one side only.

Single-sided boards may not have the same complexity as their counterparts, but they power a wide range of everyday electronics. Since they cost so little to make, you can find them in bulk-manufactured devices like:

Cameras

Audio equipment

Power supplies

Calculators

Solid state drives

Printers