Control and chemical analysis of plating solutions. Adequate testing resources and consistent analytical methods are essential to proper troubleshooting of plating baths and chemistries

Adequate testing resources and consistent analytical methods are essential to proper troubleshooting of plating baths and chemistries are discussed. The operator should monitor bath components frequently in order to maintain chemistries within a controlled window. Wet chemical methods have been routinely employed in monitoring major bath components. The analytical methods for analysis of plating solutions should be simple, direct, and operator friendly. The commercial use of instrumental techniques is limited due to complex operations, maintenance, frequent calibrations, personnel training, and the expense of initial investment. The active component of a plating bath sample is stiochiometrically titrated with a standard solution of a required titrant. The analysis of baths should not be discounted, and job shops should conduct frequent analysis of baths to ensure robust SPC process control.