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Industry NewsNews > Industry News > The cause of PCB copper leakage    

The cause of PCB copper leakage

Hits:1  Add Date:2020/12/18

1.Positioning copper exposure -- This problem is relatively rare, and the generalreasons are as follows:

 

1)No oil on the screen (oil plugging when the screen is not clean);

 

2)Expose garbage;

 

3)There are blip blocking spots on the film (due to problems with the film itselfor the ink sticking during the exposure process of the film is not cleaned onthe film);

 

2.Non-positioned exposed copper

 

1)Expose garbage (no positioning);

 

2)Scratch welding;

 

3)Film adhesive oil;

 

Influenceof PCB copper leakage

 

Mainlyis the oxidation problem, generally in a short time will not have what theconsequences, a long time will rust hair green, rot away slowly.

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