prevent COB pad from contamination

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prevent COB pad from contamination

2017/2/25 23:16:14

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.

prevent COB pad from contamination

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