PCB Assembly

     PCB assembly is the process of attaching electronic components to a printed circuit board (PCB) to create a functional electronic device. The process typically begins with a thorough review of the PCB design, including a check for any errors or issues that could affect the assembly process. Once the design is deemed ready for assembly, the components are sourced and prepared for placement on the PCB. This is typically done using automated pick-and-place machines which are programmed with the precise location of each component on the PCB. The components are then soldered to the PCB using a variety of techniques, including reflow soldering and wave soldering. Once the assembly process is complete, the PCB is thoroughly tested to ensure that it is functioning correctly. This may include a visual inspection, functional testing, and in-circuit testing to check for any issues with the electrical connections. Once all tests have been successfully passed, the PCB is considered complete and ready for use in the final product.

PCB Repair:

      we understand that even with the most thorough design and assembly processes, there may still be instances where a PCB does not pass quality tests or experiences issues. In these situations, we offer PCB repair services to our clients as a cost-effective solution.
     Our team of experienced engineers and technicians use advanced tools and techniques to identify and troubleshoot the problem on the PCB, whether it be a faulty component, incorrect orientation, cold or bridge soldering, or other issues. Once the problem is identified, a repair instruction and procedure document is created, which guides our technicians in making the necessary repairs to the PCB.
     We understand the importance of time and cost efficiency, which is why we prioritize repairing PCBs rather than scrapping them and starting over. This not only saves our clients money on the cost of components, but also helps to minimize any delays in the production process.
     We are committed to providing our clients with the highest quality PCB repair services and strive to ensure that each repaired PCB meets the same standards of performance and reliability as a brand new one.


    EMI (Electromagnetic Interference) and EMC (Electromagnetic Compatibility) are two important concepts in the field of electronics. EMI refers to the unwanted electromagnetic energy emitted by electronic devices that can interfere with the operation of other electronic devices in the vicinity. EMC, on the other hand, refers to the ability of an electronic device to function correctly and efficiently in the presence of external electromagnetic energy.
     EMI can be caused by a variety of sources, including electronic components, PCB layout, and external elements. High-frequency switching circuits, impedance mismatches, poor capacitance coupling, and high-frequency traces are some of the factors that can contribute to EM emissions from a PCB. To reduce EMI, designers must consider these factors during the PCB design process and implement suitable design practices, such as solid ground planes, impedance matching, and the use of filters or frequency rejection elements. Additionally, EMC can be improved by implementing similar design practices and testing the final product to ensure it meets EMC standards.

PCB design for best EMC/EMI performance:

How to reduce

     The first step in reducing EMI is identifying the sources of the interference. This can be done by using EMI testing equipment to measure the emissions from the PCB and its components. Once the sources have been identified, steps can be taken to reduce or eliminate the emissions. This can include using low power consumption components, proper PCB layout and trace routing, and shielding sensitive components or the entire PCB.

Why to reduce

     EMI can cause a wide range of problems for electronic devices, including system malfunctions, data errors, and even equipment damage. It can also interfere with other electronic devices, causing problems for other systems and users. By reducing EMI, the performance and reliability of the electronic device can be improved, and potential problems can be prevented.

Best practices to reduce EMI

     At eTAZ Systems, we understand the importance of reducing electromagnetic interference (EMI) in our PCB designs. Not only does EMI have the potential to harm other components in the system, but it can also cause interference in wireless communication and fail compliance tests. That’s why we have implemented a number of best practices to reduce EMI in our designs.
Some of these best practices include:
> Using low power consumption components in high-frequency applications.
> Grouping and separating similar components.
>Using a Faraday cage for sensitive electronic components.
> Dividing different types of signal traces.
> Using differential signal pairs and 45 degree turns instead of 90 degree bends.
> Shielding clock signal traces and minimizing the return path of signals to ground.
> Decoupling capacitor technique in high-speed circuits.
> Matching impedance between source and load in high-speed applications.
> Correct PCB layer arrangement and stack-up, using a ground plane between conductive signal layers.
> Shielding a part of the board or the entire board to protect against external EMI.
Additionally, we also conduct electroma

gnetic compatibility (EMC) and electromagnetic interference (EMI) testing in an accredited laboratory to ensure our products meet government regulations and standards. We also conduct SI and PI analysis to ensure the electromagnetic compatibility of our designs.

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