Journal of Applied Electrochemistry, Vol.35, No.1, 41-47, 2005
Environmentally friendly natural polyhydroxylic compounds in electroless copper plating baths: application of xylitol, D-mannitol and D-sorbitol as copper(II) ligands
The possibility of using xylitol, D-mannitol and D-sorbitol as Cu(II) ligands in electroless copper baths was demonstrated. The ligands mentioned showed good chelating properties for Cu(II) ions in alkaline media (pH > 11.5), i.e. under conditions of the use of traditional formaldehyde-containing solutions. Electroless copper plating solutions containing the chelators xylitol, D-mannitol and D-sorbitol are stable and, under the optimal conditions selected, copper coatings up to 3 mum thick can be obtained in 1 h at ambient temperatures.