TERMINAL CONNECTION STRUCTURE, SEMICONDUCTOR DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a terminal connection structure capable of enhancing the durability of a terminal.SOLUTION: A terminal connection structure includes a male terminal, and a female terminal having spring property, and fitting to the male terminal so as to sandwich the male terminal from both sides. The male terminal includes a base metal, a first underlying layer coated with the base metal, a second underlying layer coated with the first underlying layer, and an outermost layer coated with the second underlying layer. The first underlying layer and second underlying layer have different hardnesses.