A Complete Guide on How to Solder to a PCB

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The term PCB stands for printed circuit board and the majority of people are very curious to know more about it. Especially those people who do not have any kind of relation to the concerned matter. 

Following the necessary steps is very important so that you can get the end product with the least problems. Moreover, it will be great for you to know more about the printed circuit board and what soldering means. 

Hence, by the end of this article, you will be able to know more about how to solder to a PCB. Therefore, keep reading the mentioned details below. 

Soldering techniques: how many soldering techniques are there? 

There are up to a total of two types of soldering. That is named after, soft soldering and hard soldering. More information related to either of them is mentioned below. 

Soft soldering 

If you are wondering about the most common type of printed circuit board soldering then you are reading the right type. Soft soldering is the most common way of printed circuit board design. This type of soldering mainly involves soldering that is accompanied by a low temperature of liquefying.

These temperature ranges are between 450 degrees Celsius to 842 degrees Celsius. Moreover, the soft soldering process is also considered to be ideal for the attachment of the tiny components over the printed circuit board. 

Hard soldering

The other term for hard soldering also known as brazing or the joining of two distinct surfaces is in which an alloy film is used for example brass. Using hard soldering you can be able to make a very strengthening bond since this technique opts for a surface that is made from metal.

Here you can also use the technique of soft soldiering as mentioned above that can offer a result in the form of magnetic forces between the atoms and the processes of diffusion.

This whole procedure is responsible for the involvement of holes all through the components and is then left in environments that have a very high temperature.

Silver soldering is also involved under hard soldering but if you are looking for a very reliable option then this is not the one.

What is meant by soldering? 

Now after learning about the two types of soldering the next question people often wonder about is how can, we define a single soldiering term. Well, to be precise we can say that soldiering means the joining of components that are made out of metal with each other, and in the process, they are melted form of the metal that is called solder. 

  • This process is very important in the industry of electronics and devices since this is the very first stage method of combining electrical parts and components.
  • Soldering is done by a gadget that is known as soldiering iron and it has to be used at a temperature of or less than 840 degrees Fahrenheit.

There are many various kinds of Solders but the most common type is the metal alloy that is made from lead or tin which is then a mixture of brass and silver since they have low melting points.

Using a soldering iron does not require a proper tutorial, anyone with the slightest exposure to electronics and printed circuit boards would Learn and know how to use it. This gadget is not very difficult to use but the only thing that you need to be very careful of is that it gets very hot so you need to wear protective gear. 

How can you define the printed circuit board soldering process? 

Well, the next topic that we need to cover while discussing how to solder to a PCB is to know what it means. If you have the basic definition of soldering completely understood in your mind then you will not face any difficulties in understanding the soldering of a printed circuit board.

This is because printed circuit board soldering is yet another expression for the complete procedure of soldering an electrical circuit board. 

If we talk in simple terms then we can conclude that printed circuit board soldering is the easiest function done by the soldering iron which is to join the electrical components together.

The whole process is very easy and nothing complex however you just need a few items here and there to learn and adapt the soldering of the PCB.


What are some common mishaps that occur during the soldering of PCB? 

The quality and the result of the soldering have a very exceptional effect on the overall type of the printed circuit board.

This is because by the process of soldering many various parts of the printed circuit board are joined together to the other electrical components that make a printed circuit board function and serve the main purpose. 

Any mistake in this process can cause the PCB to stop working and offer a very poor product by the end of this procedure.

Hence to make you aware of some of the most commonly occurring problems that can happen during the soldering of printed circuit boards we have mentioned a few cases and the ways to prevent them.

Solder bridges

The printed circuit boards and the other electrical components are now getting smaller. Their small sizes are making it much more difficult to work around the printed circuit board. More specifically when you have to work on a printed circuit board using a soldering iron.

You need to be sure that if you are working with a very large solder iron tip then you might be able to have unnecessary bridges. If you are not sure about what a solder bridge means then we can simply define it as a kind of material that can connect more than one printed circuit board connector.

This can be very dangerous if it remains out of your attention since it can be a reason why the majority of short circuit often occurs. Therefore, it is recommended to use the right size tip of the soldiering iron to prevent the formation of solder bridges.

A lot of solders

People who are new to the soldering of the printed circuit boards and the soldering irons are not sure of how much to use it therefore they end up using too much soldering which can cause bubble-like balls at the point where a solder tends to connect.

This can cause the printed circuit board to stop functioning and offer much room for further mistakes as well. Hence to avoid such problems you need to first completely clean a soldering iron and then use it step by step instead of rushing into things.

Occurrence of burnt joints 

If you’re wondering what are burnt joins then you must know that they are opposite to the cold joints. you can easily understand this term since it emphasizes is on the word burning. This occurs when you use way too much-soldering iron that too on a very high temperature for a longer period.

It gives the ends of the printed circuit board to have an appearance like a burned device that cannot be repaired again. Meanwhile, if you figure out some way to repair it, it will not probably work for even a few days.

Therefore, you need to keep the temperature at a range that is recommended instead of keeping a very high temperature just to get the work done quickly. 

What are the basic steps in how to solder to a PCB?

Some of the basic steps involved in soldering a printed circuit board are mentioned below. 

Setting up the soldering iron

The first step is to keep your soldering iron with you and make sure to set the temperature at the recommended level. This step usually starts with the process of tinning.

Ready the surface 

Step number two is to keep the surface of the work of the printed circuit board ready. The printed circuit board should be very clean and free of any leftover dust or dirt. 

Keep the components

The third step is to select the components of smaller sizes and keep them all over the printed circuit board. Bend the lead usually at the angle of 45 degrees which will be quite easy for you to successfully keep the holes in place. 

Add some heat

Applying some heat is quite important as it keeps the hold of the soldering iron tip stable. However, do not provide it excessive heat exposure as it can damage the tip of the soldering iron.

Adding solder 

The last step on how to solder to a PCB is to add solder to the joint. The perfect solder will flow easily and smoothly. Continue adding until a small pile is formed around PCB. 

Let the board cool down for the perfect results and keep your soldering iron aside. 


Printed circuit board soldering is a very easy process that can be done by anyone with a concept related to electrical components and engineering. 


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