Printed circuit board can be shortly called as PCB . Printed circuit boards are the foundational building block of modern devices. PCB is the electronic board that connects circuit components and provide mechanical support.

Types of PCB :

Based on base material PCB is classified into three types ,

• Single sided PCB

• Double sided PCB

• Multi-layer PCB

Parts of PCB :

Pads : Pads are the location where we will solder the components. Pads have both Inner and outer diameter.

Traces : Traces connect pads together. It is used for wiring the PCB.

Vias : Vias is the pods with holes that have been drilled in PCB. Vias are used to connect the traces of one layer of board to another layer.

Solder mask : Solder mask protect copper traces on outer layers from corrosion . Areas shouldn’t be soldered may be covered with polymer resist solder mask coating .

Components :

Components are the actual component to be connected in PCB.

Example : power supply , resistors, transistor, capacitors ,LEDs, etc…

Advantages of PCB :
• Easy to repair.
• Minimal concern on short circuits and wrong wiring.
• Only low volume is required, no need for wires.
• Highly reliable.

Disadvantages of PCB :
• Cannot be updated once it gets printed.
• Etching of circuit boards generate chemicals which are dangerous for the environment.

Conclusion :
Printed Circuit Boards are supposed to be made with deep consideration and must be carefully checked at every stage.