PCBgogo

First, a well-considered layout is the foundation for shock-resistant PCBA design. During layout, the weight, size, and mounting method of components should be taken into account. Heavier components should be placed near the center of the PCB or close to mounting points to lower the center of gravity and reduce the impact of vibrations. Avoid placing sensitive components in areas prone to vibration, such as the edges or corners of the PCB. Additionally, vibration-sensitive components like capacitors and crystal oscillators should be secured using adhesives or additional support structures.

Second, routing optimization plays an important role in improving vibration resilience. Keep trace lengths as short as possible, and reduce the number of crossings and parallel lines to minimize vibration-induced signal interference. Use appropriate trace widths to ensure sufficient tensile strength. For critical signal lines like clock and reset signals, use differential routing or shielding techniques to enhance interference immunity. For example, PCBGOGO, while providing PCBA design services for an industrial client, optimized routing to significantly reduce the impact of vibration on signal integrity and improve overall system stability.

Third, selecting the right components and PCB materials is essential for shock-resistant design. Choose components with high vibration tolerance, such as surface-mount devices (SMDs), which typically perform better under vibration compared to through-hole components. For PCB materials, select those with high Tg (glass transition temperature) and low CTE (coefficient of thermal expansion) to enhance vibration resistance and thermal stability. PCBGOGO maintains strict control over material selection, ensuring the PCB materials meet the vibration resistance requirements of their clients.

In addition, reinforcement measures effectively enhance the mechanical stability of PCBA. Common approaches include adding support pillars, using reinforcement frames, and applying conformal coatings. Support pillars increase the mechanical strength of the PCBA and reduce deformation caused by vibration. Reinforcement frames help secure components to the board and prevent loosening or detachment. Conformal coating protects the PCBA from moisture, dust, and salt spray, and also contributes to its vibration resistance.

Finally, vibration testing is a crucial step in validating the shock resistance of PCBA. These tests simulate the vibration conditions the PCBA may encounter in actual usage and help evaluate its performance under such conditions. Based on the results, the design can be further optimized to enhance durability. PCBGOGO is equipped with professional vibration testing systems and offers customized testing services to ensure PCBA meets real-world vibration standards.