| 摘要 |
In a device having a circuit board bearing one or more components requiring electromagnetic shielding, and having a subassembly with a conductive backplane, the circuit board is mounted beneath that backplane. Each component or group of components requiring shielding is surrounded by a grounded shielding can having an open top. Conductive spring fingers, aligned with the walls of the can, are formed in or on the backplane. When the device is assembled, the backplane closes the can. The spring fingers press against, or interengage with, the tops of the can walls, electrically bridging any gap resulting from assembly tolerances.
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