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Printed Circuit Board Assembly & PCB Design Forum

SMT electronics assembly manufacturing forum.


How to prevent COB pad free from contamination

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#54061

How to prevent COB pad free from contamination | 17 March, 2008

Hi,

During SMT process, i found that solder splash on the gold pad. The distance between the COB pad with component pad is about 1.25mm. My question is what material can used to cover the COB pad without bringing contamination. And i am welcome to hear other suggestion.

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#54115

How to prevent COB pad free from contamination | 20 March, 2008

Common methods use to protect pads from solder splatter are: * No residue Kapton tape * Nonionic solder mask

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