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    • 6. 发明授权
    • Portable electronic apparatus and BGA package protective device
    • 便携式电子仪器和BGA封装保护装置
    • US07436676B2
    • 2008-10-14
    • US10489498
    • 2002-06-07
    • Toshihiro HiguchiShotaro NagaikeTaku YamadaYoji Inomata
    • Toshihiro HiguchiShotaro NagaikeTaku YamadaYoji Inomata
    • H05K5/00
    • H05K9/0037H01H2239/01H04B1/3833H04M1/23H04M1/72544
    • A portable electronic device in which microswitches (12) controlled by operation buttons (11) are mounted on one side of a printed circuit board (13), and circuit elements accommodated in BGA packages (14), (15) and (16) are soldered on the other side of the printed circuit board. In the portable electronic device, a shield wall (22) for surrounding the BGA packages (14), (15) and (16) is mounted on the printed circuit board (13), a first protrusion portion (18b) for holding down the shield wall (22) on the printed circuit board (13) is protruded from a case (18) of the portable electronic device (10), and second protrusion portion (18c) for holding down surfaces of the BGA packages (14); (15) and (16) on the printed circuit board (13) is protruded from the case (18) of the portable electronic device (10). With such a construction, the BGA packages are prevented from being peeled off from the printed circuit board (13). Further, even when the push buttons are frequently depressed in playing a game, the soldering parts of the BGA packages mounted on the back side of the operation button can be maintained in good conditions.
    • 一种便携式电子设备,其中由操作按钮(11)控制的微动开关(12)安装在印刷电路板(13)的一侧上,并且容纳在BGA封装(14),(15)和(16)中的电路元件是 焊接在印刷电路板的另一面。 在便携式电子设备中,用于围绕BGA封装(14),(15)和(16)的屏蔽壁(22)安装在印刷电路板(13)上,第一突起部分(18b)用于保持 印刷电路板(13)上的屏蔽壁(22)从便携式电子设备(10)的壳体(18)突出,并且用于保持BGA封装(14)的表面的第二突出部分(18c) ; 印刷电路板(13)上的(15)和(16)从便携式电子设备(10)的壳体(18)突出。 通过这样的结构,可以防止BGA封装从印刷电路板(13)剥离。 此外,即使在游戏中经常按下按钮时,安装在操作按钮背面的BGA封装的焊接部件也能够保持良好的状态。