| 摘要 |
PURPOSE:To improve the uniformity of a magnetic film formed by electroless plating by adding Zn ions to an aqueous soln. contg. Co ions, Ni ions, a reducing agent and a complexing agent. CONSTITUTION:Zn ions are added to an electroless plating bath contg. Co ions, Ni ions, a reducing agent for the metallic ions, a pH buffer, a pH adjusting agent and a complexing agent for the metallic ions. The coercive force Hc of a magnetic Co-Ni-P film is changed by regulating the amount of Zn ions added, so a magnetic film having controlled desired magnetic characteristics is formed. Since Zn ions smoothen the plated surface, the uniformity of the magnetic film is improved. |
