Printed Circuit Board Assembly & PCB Design Forum
SMT electronics assembly manufacturing forum.
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I am experiencing a "tarnishing" issue on PWB traces that ma... - Feb 16, 2019 by SMTA-Joe SMTA
Your silver immersion layer is dissolving in the solder. I p... - Feb 16, 2019 by sarason
Each time that you cook imm surfaces, you give-up coating th... - Feb 17, 2019 by davef
the tarnishing is happening across all the traces without so... - Feb 18, 2019 by SMTA-Joe SMTA
Would increasing the thickness to compensate be a reasonable... - Feb 18, 2019 by SMTA-Joe SMTA
It doesn't matter if the traces have solder or not. We're ta... - Feb 18, 2019 by davef
Thanks. Something to think about! ... - Feb 18, 2019 by SMTA-Joe SMTA
Whose process is your fab using? Contact [MacDermid, Electr... - Feb 18, 2019 by davef