Electroless gold plating,as a surface finishing on PCB,has been extensively focused and studied,because it can provide a gold layer with good solerability,ductility and corrosion resistance. The research progress on electroless gold plating on PCB was reviewed in this paper. The principle of electroless gold plating and the composition of the electroless gold plating bath were introduced. The developments of non-cyanide gold plating were described in detail. Moreover,in the view of electroless nickel plating /immersion gold and electroless nickel / palladium/gold plating on PCB,the influences ...
