硫酸盐镀铜光亮剂的改进研究

Study on the Improvement of a Brightening Agent for Sulfate Copper Electroplating

酸性镀铜溶液中添加现行硫酸盐镀铜光亮剂会导致低电流区域镀层光亮度不足,通过调整光亮剂中SP用量和添加甲基紫来改善这一缺点。通过甲基紫与硫酸盐镀铜光亮剂的复配,研究镀铜所得试片镀层的效果,确定了甲基紫的最佳添加量,得到了一种适用于低酸高铜体系的硫酸盐镀铜光亮剂。

The use of existing copper plating brightening agen t in the sulfate copper plating solution with lower acid and higher copper concent rations the coating obtained will be less shining at the low current density reg ions.Adjusting quantity of the SP component in and adding methyl violet into th e brightening agent simultaneously can improve the quality of the copper coating.Through experimental tests a compounded brightening agent of the existing copp er plating brightening agent with methyl violet suitable for use in sulfate copp er plating solution containing lower acid and higher copper can be obtained.