A Study of the Reduction Efficiency of Sodium Hypophosphite in Low Temperature Electroless Nickel Bath

The reaction mechanism of electroless nickel plating is analyzed; a concept of the reduction efficiency of sodium hypophosphite proposed; and the calculation formula for the efficiency derived. The reduction efficiency of sodium hypophosphite in low temperature electroless nickel plating process is determined through experiments; and the effects of sodium hypophosphite, complexing agents and accelerant on the reduction efficiency of sodium hypophosphite discussed.