This paper describes the inhibition of Fe3+
formed in electroless Ni-Fe alloy plating solutions for soft magnetic films.
Solutions were improved by elimination the dissolved oxygen in plating solutions. To prevent the oxidation of Fe2+
ion in solutions.
L-sodium ascorbate was added to standard electroless Ni-Fe-P and Ni-Fe-B plating solutions, which were purged by N2
gas. In these cases, the changes in dissolved oxygen concentration, plating rate, film compositions and magnetic properties were investigated.
In conclusion a satisfactory improvement in electroless Ni-Fe alloy plating solutions was achieved by both adding L-sodium ascorbate and purging solutions with, N2