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Can you hit that with a UV light for better visibility as to where the coating is (and is not)?
What's the part number on your conformal coating? I've never seen that behavior with MG Chem 419D applied to a properly cleaned board....
The answer is DFM ("design for manufacturing"): Don't put any copper traces near corners on the PCB. The PCB's fiberglass FR4 substrate...
Even the big players have had issues, but yes I agree that cell manufacturing quality is very important. My cell supplier isn't a...
