What are the types of commonly used circuit driver boards? This chapter will explore with you.

There are 6 types of commonly used electric drive boards, namely single-sided PCB or single-layer PCB, double-sided PCB or double-layer PCB, multi-layer PCB, rigid PCB, flexible PCB or flexible PCB, rigid flexible PCB or rigid flexible PCB

1. Single-sided PCB or single-layer PCB

Single-sided PCB is the simplest low-cost PCB or printed circuit board. These types of PCBs have only one base substrate (fiberglass) and a single conductive (copper) layer. The holes for electronic components are generally not plated through. The layout of electronic components is on one side and the conductive circuit is on the other side. Since only the conductive layer forms the circuit, it is called single-sided PCB or single-layer PCB or single-layer PCB

2. Double-sided PCB or double-layer PCB

These types of PCBs have one base substrate, but the conductive (copper) substrate has two layers. Solder mask is applied on both sides of the board.

The holes for electronic components must have electrical conductivity on the circuit. Conductive holes in PCBs allow the circuit on one side to be connected to the circuit on the other side.

Electronic components are soldered on both sides. Through-hole electronic components and surface mount components (SMD) can be soldered on both sides of this type of PCB. SMD components can be soldered using surface mount technology. Since, there are two or double conductive layers to form the circuit; it is called a double-sided PCB or a two-layer PCB.

3. Multilayer PCB

Multilayer PCB is a type of printed circuit board with more than 2 layers. These types of PCBs must have at least 3 layers of conductive material or copper. All layers are interconnected with copper plated holes. These layers can be 4,6,8... up to 40 layers. All active and passive electronic components are assembled on the top and bottom layers. All internal stacked layers are used for routing. Through-hole electronic components and surface mount components (SMD) can be soldered on both sides of this type of PCB. SMD components can be soldered with surface mount technology and other PCBA tools.

4. Rigid printed circuit board

Rigid PCBs are solid, reliable printed circuit boards. Therefore, a rigid circuit board is a PCB that we cannot bend or force out of a shape. It is not flexible. Rigid PWBs can be single-sided, double-sided, or multi-layered. Once rigid circuit boards are manufactured, they cannot be modified or folded into any other shape.

5. Flexible Printed Circuit Board or FPCB

Flex PCB is also called Flexible PCB or Flex FPC or Flex Circuit or Flex Print or FlexI Circuit. As the name suggests, these Flex PCBs are flexible, can be folded and do not conform to rigid PCBs. The flexible material and shape help in easy handling and transportation of these types of PCBs without damage. Flex PCBs can be single-sided PCBs, double-sided PCBs or multi-layer PCBs. The substrate of the flex board is made of flexible plastic (thin insulating polymer film), polyimide or similar polymers, or Kapton. The conductive copper circuit is printed on this substrate and a thin polymer protective coating is applied to protect the circuit. The copper tracks have component layout. Usually SMD components are soldered on the flexible PCB using surface mount technology (SMT).

6. Rigid Flexible Printed Circuit Board

Rigid flex PCB is a hybrid combination of rigid PCB and flexible PCB. The simplest form of rigid flex printed circuit board is a rigid circuit board connected to a flexible circuit board. Rigid flex printed circuit board is a circuit board formed by laminating a rigid substrate and a flexible substrate together.

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