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Troubleshooting Intermittent Connection Issues in Custom PCB Designs

Discussion in 'Electronic and hardware generally' started by Derek Theler, Apr 4, 2025 at 08:18.

  1. Derek Theler

    Derek Theler New Member

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    Hello

    I have been working on a custom PCB prototype & I am encountering an issue where certain connections intermittently fail; especially when the board is slightly flexed or after prolonged operation. I've double-checked my solder joints and reflowed some suspect areas, but the issue persists. :(The problem appears to be more prominent when the board heats up or is under minor mechanical stress.

    I’m wondering if this could be due to microfractures in the PCB traces, cold solder joints, or possibly a component-related issue. Has anyone here faced similar problems? :(

    What are the best diagnostic techniques to identify weak connections? :( I've tried using a multimeter and continuity testing, but the issue is inconsistent and difficult to pinpoint.

    Any recommendations on stress testing methods or thermal imaging techniques would be greatly appreciated.





    Thank you !!:)