Learn Electronic PCB Assembly Process in 3 Simple Steps

Posted on 2021-01-06

What is the main difference between PCB boards and PCB assemblies?

Today we will learn which one basic component is behind the working of modern electronic gadgets or devices. Are you thinking about PCBs? Yes, you are right! This one basic component is electronic PCB assembly.

Basically, all electronic appliances like your smartphones, laptops, and several other countless appliances are working because of these PCB assemblies. Modern electronic devices whether they are related to our residential or industrial needs can’t work without these assemblies.

Hence, PCB assemblies are playing an unseen and the most important role in today’s electronic industry. But what are PCB boards and PCB assemblies? What are different ways to create PCB assembly? Further, what is the difference between PCB boards and PCBA?

Come with us to know answers to all the above questions!

Electronic PCB Assembly

What is PCB in electronic?

PCB boards are the basics in any electronic PCB assembly. In fact, PCB boards are a vital part of all your modern electronic appliances. Moreover, the basic PCB circuits conclude a huge number of active and passive components.

And electronic designers connect all these important components with the help of traces on the PCB board. The best thing about PCB boards is, manufacturers can develop a huge number of circuits on a very small board.

Additionally, there is also a small size of electronic components. Moreover, electronic manufacturers use PCB boards to design complex electronic circuits. These boards not only electrically connect the electronic circuits but also provide mechanical support to all the electrical components.

Electronic PCB assembly only can happen on the PCB boards. However, PCB manufacturers can create all PCB designs and assemblies in both ways such as,

  • manually

5 magnificent advantages of PCB boards

In fact, PCB boards have countless advantages in the field of the electronic industry. But here we describe the 5 major benefits of using PCB boards. Such as,

  1. PCB boards are very easy to repair even in serious faults
  2. These boards are helpful to save the extra wire as they are compact in size
  3. They can save time and money because they are low in cost
  4. They are extremely reliable in electronic PCB assembly for simple and complex designs
  5. PCB boards can greatly low electronic noise.

What is an electronic assembly?

It is an ordinal term in the electronic product and device manufacturing process. Electronic tools and equipment assemblers generally assemble computer parts and various electronic components.

Moreover, they must have to comply with the following rules,

  • the important safety protocols;
  • all necessary government and industry standards.

What does electronic PCB assembly mean?

After the creation of the PCBs, manufacturers assemble all electronic components on them for completing of the mechanism. This next step is known as PCB assembly. Let’s know more about the electronic PCB assembly.

In fact, PCB assembly is the main process to connect all electronic components with the wirings of PCBs.

Manufacturers engrave in the laminated copper sheets of PCBs have used inside a non-conductive substrate to establish the assembly. Actually, to attach the electronic components with PCB boards is the final action before using any full operational electronic device.

Further, it doesn’t matter whether the boards are flex, rigid, or MCPCB because the basic base design will remain almost the same.

What is the electronic PCB assembly process?

As we have already explained that electronic devices and tools are playing an integral part in our lives. We even can’t imagine living without these smart electronic gadgets.

Moreover, all electronic devices whether they are relating to our domestic needs or industrial requirements include electronic components. A Printed Circuit Board on which manufacturers mount all components is an assembled PCB.

Whereas the manufacturing process is known as electronic PCB assembly. Further PCB assembly, in short, is famous as PCBA.

What are the 3 main ways to create electronic PCB assembly?

PCB assembly is actually a very important process and it is very critical to perform it with great care. Moreover, a PCB manufacturer should pay deep attention to all important details to make it highly precise. Because it has to determine the successful operation of all electronic devices.

Today PCB manufacturers are using 3 different and popular processes to ideally assemble all electronic machines with PCBs. These most popular and useful assembly processes are:

  • Surface Mount Assembly (SMT);
  • Electro-mechanical assembly;
  • Plated through-hole technology (PTH).

Now let’s deeply know about these 3 main ways of electronic PCB assembly.

Surface Mount Assembly (SMT):

Basically, SMT or Surface Mount Technology emerged in the 60s. Later it developed in the 80s. However, it is also currently one of the best PCB assembly methods.

Moreover, PCB manufacturers assign it as one of the best assembly processes for assembling electronic components. They totally rely on SMT for assembling all their important electronic part on the PCB circuit boards.

In this process, PCB manufacturers use metal tabs that are very easy to solder on the PCB boards. Further, this technique provides higher circuit densities at the time of fixing components at both sides of PCBs by using effective soldering methods.

What are the advantages of SMT?

Most electronic designers like to use SMT for electronic PCB assembly purposes. Because it has several advantages over the other two assembly methods. For example:

  • It uses much smaller components
  • It has a much higher component density
  • PCB manufacturers can add several connections per component
  • They can also place components on both sides of the PCB boards.PCBA prototype manufacturing

Electro-mechanical assembly:

It is also famous for another name such as box-build assembly. In this process PCB manufacturers generally use,

  • wire harnesses;
  • custom metalwork;
  • looms;
  • cable assembly;
  • as well as molded plastics.

Furthermore, they use all these elements use to assemble PCBs with the help of electronic components.

Plated through-hole technology (PTH):

In this process of electronic PCB assembly, PCB manufacturers use all components with leads in order to attach them. Actually, manufacturers have to use PCB boards that come with drilled holes. It is very easy to assemble all components by PTH because they can easily insert leads into these drilled holes.

What is the difference between PCB boards and electronic PCB assembly?

Here we are giving you the main differences between PCBs and PCBA (PCB Assembly).

So, let’s check out!

                 Printed Circuit Board

                        PCB assembly

PCB boards are actually empty or bare circuit boards.


The PCB boards look like a green slate


At first, they contain no electronic component


They are plain boards with defined spaces and lines

Furthermore, it is unable to use in any electronic device till manufacturers complete the entire assembly on it.

·In fact, electronic PCB assembly is a complete tool


It is ready to use in an electronic device


Because all electronic components have assembled onto the PCB board

The board which you see in any electronic device is actually a PCBA



We are sure that after reading this article, you are able to distinguish between PCB and PCBA. So we have put the entire essential information about both terms. We have also put all basic detail about the 3 main processes of PCBA.

Moreover, you can follow your own PCB assembly method to mount electronic components onto the PCB board. It depends on the needs and demands of your electronic project which you are going to manufacture.