| 摘要 |
Provided is a circuit board device, wherein degrees of freedom are provided for a GND connecting position among plural printed boards, and noise shield and/or heat sink effects are provided. An electronic device provided with the circuit board device and a GND connecting method are also provided. Circuit board device (100) includes a pair of printed boards (110, 120), noise generating component (112) and/or heat generating component (122), and metal plate (140). Printed boards (110, 120) include mounting surfaces and GND connecting terminals (111, 121) arranged on the respective mounting surfaces, and the mounting surfaces are arranged to face each other. Noise generating component (112) and/or heat generating component (122) is mounted on the mounting surface of at least one of a pair of printed boards (110, 120). Metal plate (140) is arranged between the mounting surfaces of the pair of printed boards (110, 120), and is located at a distance from at least one of noise generating component (112) and heat generating component (122) so as to overlap with the noise generating component and/or the heat generating component. Furthermore, metal plate (140) is in contact with each of GND connecting terminals (111, 121) so that GND connecting terminals (111, 121) are electrically connected to each other.
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