The current distribution in an electrochemical cell. Part VII. Concuding remarks

The ability of an electrolyte to provide a uniform current density distribution over a cathode surface has been the subject of numerous investigations, resulting in a large number of different criteria to determine it as the throwing power indexes of an electroplating bath. A new method for the determination of the ability of an electrolyte to distribute uniformly current density in an electrochemical cell is proposed. It is based on the comparison of the current in cells in which the electrode edges touch the cell side walls with the current in cells with different electrode edge-cell side wall distances. The effects of cell geometry, process parameters and current density are discussed and illustrated using the results presented in the previous papers from this series. (Example: copper plating bath.)