Electroplating layer appears burr, coarse grain, what cause is commonly caused, how to solve?

Electroplating layer appears burr, coarse grain, what cause is commonly caused, how to solve?


The electroplating layer appear burrs, coarse particles, mainly caused by the solution contaminated by suspended impurities. Its sources are: dust in the air, anode sludge, hydrolysis products of metal impurities. The solution is to adjust the bath composition and operating conditions. If the solution is caused by suspended impurities, the bath should be filtered.