PCB Functional Testing

PCB functional testing is the most crucial procedure or step to ensure zero defect printed circuit boards. When it comes to any electronics product, quality and reliability are key. Since PCBs are an integral component of any electronic device, this is made possible when the PCB is thoroughly tested and defects, if any are identified. PCB Functional Testing is a crucial step that is undertaken in order to detect defects in PCB Assemblies. It is the step that gives the PCB manufacturer the final green signal to go ahead with the shipping & delivery. At Technotronix, we are taking care about the quality of printed circuit boards, circuit board assemblies, fabrication, prototypes and more. We undertake rigorous testing on the PCBs, including functional testing on PCBs as well as PCB Assemblies. Little surprise then that a range of industries rely on us for their end-to-end PCB assembly services.

PCB Functional Testing Capabilities

Functional testing is being the final step in the manufacturing of PCBs, is an extremely crucial one that can ensure zero-defect PCBs. The concept of functional testing is quite unique. Unlike ICT, for example, where each individual component is tested after soldering to the PCB, functional testing isn’t about individual components but about the overall functionality. With miniaturization emerging as an important trend, the importance of functional testing cannot be overstated.

Here is a quick overview of our functional testing capabilities:

  • Our team of qualified test engineers continually evaluate & develop test printed circuit boards and assemblies.
  • Functional testing requires instruments such as I/O PCBs, communication ports, digital multimeters and more.
  • Normally, the testing is done according to test procedures and specifications mentioned by test engineer.
  • With the tester connected to the PCB through a probe point, it stimulates the electrical environment of the PCB.
  • It therefore ensures that the testing is full proof and any flaws in either design or functionality is brought to light, thereby ensuring there are no costly mistakes at a later date.

Benefits of PCB Functional Testing Service

There are several benefits of PCB functional testing including but not limited to:

  • Detection of any faulty or missing components.
  • In case of any fault, it triggers a root cause analysis.
  • Importantly the entire process of analysis and fixing is documented. This, in turn, ensures that there is a laid down guideline that helps improve quality.
  • It is cost-efficient.
  • It works in sync with other testing methodologies such as in-circuit testing and flying probe testing.
  • It can be used to test each PCB so that there are no chances of error.

Application of PCB Functional Testing

PCB Functional testing finds wide application as the final PCB manufacturing process. It is the final test that determines whether or not the PCB can be shipped. Since the test validates that the hardware is free of defects, it finds extensive application in PCB manufacturing and assembly. While the requirements as well as the procedures of a functional test may be different, its role in testing printed circuit boards’ functionality cannot be overstated.

Ensure Printed Circuit Board Functional Testing with Technotronix

Over the last 4 decades Technotronix has emerged as a reliable end-to-end partner for your PCB fabrication and assembly requirements. No matter how complex your requirement is, you can count on our team of experts to offer you plausible solutions. What we also have on offer are industry best practices that ensure that you are not required to make costly mistakes.

The big advantage that we offer is also our quick turnaround times that ensure that you can go-to market quickly. We are well-equipped to offer both prototype quantities and large production runs, also endear us to our customers.

The fact that we have an extremely experienced and qualified team ensures that we undertake robust testing for all our PCBs. With our PCBs complying with the highest industry standards and certifications, you can rest assured that you receive cutting-edge products. Our printed circuit boards are complied with IPC standards, as well as ISO 9001:2015 and AS9100D standards.

We also offer PCB turnkey services that take away the hassle from you and offer you high quality products.

What you need to do is to simply get in touch with our team and share your requirements. We offer you a competitive quote that ensures the cost-effectiveness of your project.

PCB Functional Testing FAQs

PCB Functional Testing is undertaken in order to detect defects in PCB Assemblies. In fact, it is one of the final and most crucial steps in the functioning of PCBs. It is this step that gives the manufacturer the green signal to go ahead with the shipping.

While ICT involves testing of each individual component after soldering to the PCB, functional testing isn’t about individual components but about the overall functionality.

Besides helping with detection of any faulty components, functional testing also triggers a detailed root cause analysis. The entire process of analysis and fixing is documented, which in turn ensures that there is a laid down guideline that improves quality in the long run.

It helps in detecting any missing or faulty components. Not just that, with a detailed root cause analysis it helps improve quality in the long run. Importantly it is cost efficient and helps in testing each PCB before shipping.

Our strength comes from the fact that we have robust testing tools, probes and software that check the overall functioning of the PCB. Besides, our experienced team is extremely well-placed to identify defects and make use of a wide body of industry best practices.

Absolutely. We understand the importance of quick time to market, and offer quick turnaround times.

Totally we offer end-to-end solutions and our clients rely on us for turnkey services

We offer robust customer support with our team hand holding you, every step of the way.

We have over 4 decades of experience in dealing with different varieties of PCBs. No matter how complex your requirement, you can count on us for bespoke solutions.

Totally. We offer the most cost-effective prices that give you a tangible advantage.
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Do you have any PCB functional testing requirements? Request a free PCB fabrication quote. Alternatively, email BoM, Gerber files, and other required details at [email protected] or call us 714/630-9200.


PCB Assembled in 24 hours

Best Turn around time for Prototype PCB assembly.
Kitted and Turn-Key option as per customers requirement.


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