| 摘要 |
PROBLEM TO BE SOLVED: To prevent the diffusion of nickel (Ni) even under high temperature conditions, and to satisfactorily maintain the surface condition of a gold (Au) layer. SOLUTION: In the surface structure of a metallic body where gold (Au) plating is applied to a base member 1 consisting of metal, a nickel (Ni) layer 2 is formed on the surface of the base member 1, a barrier layer 3 consisting of a group 8A metal in the Periodic Table is formed on the surface of the nickel (Ni) layer 2, and further a gold (Au) layer 4 is formed on the surface of the barrier layer 3. Rhodium (Rh) can be used for the barrier layer 3, and stainless steel can be used for the base member 1. COPYRIGHT: (C)2005,JPO&NCIPI |
