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