When designing a PCB, it is important to pay attention to the components and other supportive structures. Every product has some limitations. This takes place due to the raw materials used, technological drawbacks, or human errors. Either way, there are some factors beyond the control of current technologies. Hence, it is imperative that we identify these limitations and include design components that resolve them.
Modifications to Improve on Current PCB Designs
The following components can be included in a Printed Circuit Board Manufacturing to counteract its limitations:
1. Stiffeners
The weak points of any PCB are the soldered joints. Solder is inflexible and it can break when the application is in operation. Hence, stiffeners are used to support soldered components and joints.
2. PSAs
PSAs act as double sided tape helping affix the board within an enclosure. PSAs can be made available to dissipate heat, be electrically conductive, or shield from interferences.
3. RF & EMI Shielding
Some applications are EMI or RF sensitive. Hence, the PCB needs to feature protective layers to shield it from these radiations and interferences. Special films or silver ink layers can be used to shield the PCB effectively. The material can be chosen depending on the magnitude and intensity of these interferences.
4. Epoxy Strain Relief
If a bend is situated too close to the rigid board or a stiffener, there is a high chance that the circuit could break. A drop of epoxy on this interface can help in reducing the strain to a large extent, keeping the circuit intact.
These components not only counterbalance the limitations of materials, components, and technologies but also increase the efficiency and reliability of PCBs. You can incorporate these components to give your PCB a practical edge.
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