Choosing A Process For The Prototype During The PCB Assembly

There are several processes that we use for your circuit boards while they undergo Printed circuit board assembly, and we thought that we can share them with our clients who are consumers of electronic components. These processes also apply to building the PCB prototype because it is important to know the correct process to save money and time and come up with the highest quality product.

PCBDuring the stages of drafting, designing, and manufacturing, most of our engineers would create a prototype so they would know what components to use and how to place these components on the circuit board. They also do some tests to determine how much they will need for the final task before starting everything. This is a critical stage that must not be ignored or rushed, and it is also the ideal reason to test a certain process and find out the results.


Basically, creating a prototype involves two process categories, which are:

1. Subtractive

To complete the PCB assembly, any excess copper coated plating will be stripped off in this process. You can choose from the following options:

2. Milling

This process is a common way for us to manufacture PCBs through the use of a milling machine. It creates the brunt of the product. The kind of device used is also called a “PCB Prototyper,” and to create the circuit board, it is commanded by x-, y, and z-axis software.

3. Silk Screen Printing

A PCB can be manufactured through the silk screen printing process just like that used in printing images and text on T-shirts and other articles of clothing. It is a bit different than printing shirts, but this process still uses ink to build a part of the circuit board.

4. Photoengraving

Through this process, the photoresist is taken off. Only the conductive plating is left because the PCB needs it for it to work properly. This process of PCB assembly also uses etching and engraving.

5. Additive

In contrast to subtractive, this process adds the copper instead of stripping off the excess. Like photoengraving, the additive process is a popular process that we use through laminating and subjecting the circuit board to a chemical bath that coats it with the required conductive components. This is the most common way that we use to manufacture a Printed circuit board.


Depending on the function of the circuit board and the reason we do the PCB assembly, different PCBs tend to require different kinds of processes for them to work. For this reason, we need to have a shortlist of the processes that we would try first. In a way, this is the “wish list” of your processes.

Printed Circuit BoardsThese processes are required when we manufacture a PCB prototype. However, we only choose one for every circuit board. Some of these can be cost-effective, other processes can reduce the time needed on our total PCB manufacturing project, and there are also other processes that can do both and perhaps even more. Again, so that everything can work within the budget and time, this depends on the PCB, the type of project, and the reason for manufacturing them. As your Printed circuit board manufacturing partner, we can assist you in determining the best process for you.

Create the Prototype

After deciding on the design and process, it is then time for us to build the prototype and check how everything will work out. This process is simple: you send us your desired designs and just wait for us to send back the prototype.

During this stage, you could determine if the chosen process would work for you and decide what you would do with the remaining PCBs for the project. You can stay with the process if you like it, or try another one and build a different prototype.

Building the PCB prototype is an essential part of the whole Printed circuit board assembly process. We can try this with your batch order so you can notice the difference it will give you in terms of the outcome and quality of the products.