| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic component and printed wiring board including a structure body excellent in joint strength and corrosion resistance and free from a noble metal such as palladium.SOLUTION: A structure body includes a conductor comprising Cu as a main component, an intermediate layer formed on the conductor, and a protective layer formed on the intermediate layer. The intermediate layer includes at least Cu, Sn, Ni, and P, and the protective layer includes at least Ni and P. |
