Most Common Types of Electronic Circuit Boards
Electronic circuit boards are the foundation for almost all electronic devices. The type of PCB you choose depends on what type of device you’re building and what it will do. Whether you’re working on a simple timer or an advanced sensor, there are many different types of electronic circuit boards to choose from. In this article, we will take a look at the most common types of electronic circuit boards to help you determine which one is best for your project.
Single-sided PCBs are the simplest type of printed circuit board. These PCBs have a non-conductive substrate material, such as FR-4, with a layer of conductive copper on one side. The copper on the surface of the board is connected to other components and wires through small holes in the board called vias.
Double-sided PCBs are more complex than single-sided boards, as they have two conductive layers. The conductive layers are separated by prepreg (pre-impregnated) insulating layers that are bonded and laminated using heat and pressure. The inner layers of the multi-layer boards can be used for power and ground planes, while the outer layers can be etched and patterned to allow for signal routing and component placement. Holes are drilled through the insulating layers and plated with copper to create vias. A layer of solder mask is also applied to protect the copper traces from oxidation and short circuits during assembly.
What Are the Most Common Types of Electronic Circuit Boards?
Multi-layer PCBs are ideal for electronic projects that require an intermediate level of circuit complexity and high-speed signals. They contain three or more conductive layers, which are separated by insulating layers that can be etched and patterned with the photoresist process. The outer layers can be used for signal paths and vias, and the inner layers can be etched and patterned to provide power and ground planes. Multi-layer PCBs can also support advanced techniques such as blind and buried vias, which improve the performance of electronic projects by allowing for more complicated connections between conductive layers.
Active component circuits are designed to do specific electrical functions such as frequency control, amplification, and voltage regulation. Passive component circuits, on the other hand, are not designed to perform any specific electrical function and have low losses. These include resistors, capacitors and inductors.
Lastly, flexible printed circuits, or FPCs, are a type of PCB that can be bent into different shapes and is typically made from polyimide or polyester film with a polymer coating. These are used in the automotive and aerospace industries because they can withstand high vibrations that can be present in these environments.
Once you’ve determined which type of circuit board is right for your project, it’s time to start assembling the components. If you’re working on a single-sided or double-sided board, you can use a perfboard to build your prototype and then transfer it to a bare PCB when ready for production. Alternatively, you can have your project professionally etched on a single- or double-sided board.