Defects to either the PCB assembly or its conformal coating can be sufficient to cause coating removal. Whether repair technologies address the circuit board’s components or the conformal film, subsequent post-repair coating (recoating) processes need to address:
Conformally coated PCBs are expected to work without fail, largely because of the protection the coatings provide them. In addition to PCB-manufacturing issues, coating problems can trigger failure mechanisms for the assembly. For instance, Conformal coating applied incorrectly can cause PCB malfunction. Selecting the wrong coating material from among acrylic, epoxy, parylene, silicone or uret
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Conformal coatings are designed to protect printed circuit boards (PCBs), assuring they work under all operational circumstances. However, cases emerge where boards fail to function despite conformal coating protection. Such non-performance can be a consequence of:
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