| 摘要 |
A card device capable of improving mechanical strength of a mounting substrate with a simple structure is provided. A memory card includes the mounting substrate and a semiconductor package in a package. An electronic component such as a communication component on the mounting substrate is covered with a protective member having an electromagnetic shield function. The protective member is formed by drawing process of a sheet metal, has a containable space by a ceiling section and a side wall, and has a curve section at a joint section between an all rim of the ceiling section and the side wall. A flange is provided on the bottom end of the side wall, and the flange is solder-jointed with a ground region of the mounting substrate. In the protective member having the foregoing structure, stress hardly concentrates locally. Thus, its mechanical strength is large, and rigidity of the mounting substrate is increased.
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