This paper describes the inhibition of Fe
3+ 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 Fe
2+ ion in solutions.
L-sodium ascorbate was added to standard electroless Ni-Fe-P and Ni-Fe-B plating solutions, which were purged by N
2 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, N
2 gas.
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