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Why is it difficult to tin the High frequency PCB

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Popularity:237Dated :01-11-2022 07:54【big well Small

Why are some High frequency PCB pads not easy to be tinned? Here, we will analyze the possible reasons for you.

The first reason is: we need to consider whether it is a customer design problem, and we need to check whether there is a connection between the pad and the copper sheet that will cause insufficient heating of the pad.

The second reason is: whether there is a problem with customer operation. If the welding method is not correct, it will affect the insufficient heating power, insufficient temperature, and insufficient contact time.

The third reason is: the problem of improper storage.

1. Under normal circumstances, the sprayed tin surface will be completely oxidized in about a week or even shorter.

2. OSP surface treatment process can be stored for about 3 months

3. Long-term preservation of immersion gold plate

 

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