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Tin Platting Pad

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SMTA-64386317

#85685

Tin Platting Pad | 25 September, 2020

Hi All, There is a problem which tin platting pad not able to get good wetting after reflow process while OSP pad able to achieve good platting. Where should I look to improve wettability at tin platting finishing. There is no component mounting on it.

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#85693

Tin Platting Pad | 26 September, 2020

Print no paste on the tin-plated, [test???] pad. Experiment by putting Kapton tape over the stencil aperture for the tin platted pad.

Re-assess your reflow profile, since the liquidus of the two plating materials will be different.

Evaluate your paste storage and handling processes.

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SMTA-64386317

#85694

Tin Platting Pad | 28 September, 2020

Hi Dave, Thank you. Will evaluate your method.

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Flux-Free Reflow Soldering

Panasonic CM402, CM602, DT401