| 摘要 |
<p>PURPOSE: To provide a data card which is tightly fixed to a main body, which is connected to the ground surface of a circuit board, and whose cover can be grounded. by operating peripheral EMI shielding. CONSTITUTION: In a data card including a molded plastic main body 22, frame 20 equipped with conductive upper part and bottom part covers 24 and 26, and circuit board structure having a ground surface to which plural circuit parts are attached, conductive rails 70 and 72 formed of metallic thin boards are extended along at least one main body side face, those rails 70 and 72 are extended so as to be higher than half the height and longer than half the length of the side face of the main body so that the side face area can be almost covered, and electrically connected with the ground surface of a substrate.</p> |
