The PCB is the fundamental element of any electronic circuit
The PCB is the fundamental element of any electronic circuit

The PCB is the fundamental element of any electronic circuit. In addition, the latest generation electronic circuits include hundreds of components and thousands of welds and interconnect. Therefore, it is essential to define rigorous control and testing procedures to ensure the quality of the final product. Element of Any Electronic Circuit Let’s look at some of the most superior PCB assembly testing methods.

Detecting it at this stage means a slight loss in the form of a specific element, which, even in an advanced integrated circuit, is only a tiny fraction of the value of the final device. However, if the damaged component goes to assembly, it will only become noticeable when starting the finished board. At this point, the losses become pretty annoying. Recognizing the module as unrepairable and placing it in the trash can, we bear the cost of the board, assembly, a set of soldered elements, and finally wasted time of the commissioning person. Reliable PCB assembly suppliers know that testing is simply essential.

Purpose of PCB testing
PCB assembly is a process by which a company assembles various electronic components onto a printed circuit board. PCB assembly process begins after the manufacture of printed circuit boards. Then, the PCB must undergo appropriate tests so that the manufacturer can be sure of its quality.

Without carrying out, you cannot count on the highest quality of the finished product. Only through the testing process can you identify errors and various faults such as short circuits. Testing components before starting the assembly process saves time and money.

A professional PCB assembly supplier knows the value of testing, so his internal team is responsible for carrying them out. Each PCB undergoes a comprehensive testing mechanism. By outsourcing the assembly service to such a company, you can count on the final product to be of the highest quality and fully functional. Vendors offer a wide variety of tests with both in-circuit testing and 100% functional testing. Let’s take a look at the most popular PCB assembly Inspection and Testing Methods.

In-circuit (ICT) test

In-circuit testing (ICT) is the consolidation of various test tools into one. It often requires the use of complex equipment and appropriate technological preparation. The test system connects to the PCB with test leads that relate to the test points on the PCB. Thus, it is an electrical check of circuits and components for critical values. In some cases, high-frequency plates require characteristic impedance monitoring.

Automatic Optical Inspection (AOI)
Today’s Automatic Optical Inspection System (AOI) methods in PCB assembly testing guarantees an excellent product. The main disadvantage of visual methods is that they are unfortunately not able to verify the invisible areas.

3D Automated X-Ray (AXI)
A visual inspection is often insufficient to check the solder joints of standard components. X-ray radiation automatically scans the plate and detects errors that are invisible during visual inspection. 3D CT X-ray inspection is necessary to detect voids, hidden defects, or even defects related to the correct distribution of solder paste under the components.

Environmental testing
Thanks to this, they guarantee the reliability and high quality of its products. In addition, appropriate conditions allow you to accelerate the aging process of the product. Thanks to this, it is possible to predict its life cycle and analyze the failures before implementing the product.

It is a well-known principle that the weakest component determines the reliability of a device.

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