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    Electronic device having an electronic component with a multi-layer cover, and method
    3.
    发明授权
    Electronic device having an electronic component with a multi-layer cover, and method 有权
    具有多层覆盖层的电子部件的电子设备及方法

    公开(公告)号：US06621163B2

    公开(公告)日：2003-09-16

    申请号：US10169498

    申请日：2002-07-03

    申请人： Johannus Wilhelmus Weekamp ,  Jorrit Jorritsma ,  Edwin Petrus Alois Maria Tijssen ,  Marc Andre De Samber

    发明人： Johannus Wilhelmus Weekamp ,  Jorrit Jorritsma ,  Edwin Petrus Alois Maria Tijssen ,  Marc Andre De Samber

    IPC分类号： H01L2348

    CPC分类号： H03H9/1092 ,  H01L2224/11 ,  H01L2924/00014 ,  H03H9/0547 ,  H05K3/284 ,  H05K3/3452 ,  H01L2224/0401

    摘要： An electronic device includes an electronic component 2, 3, such as a SAW (=Surface Acoustic Wave) filter 2, 3 having connection areas 4, 5. The filter 2, 3 is sealed off from the environment by means of a cover 6 forming a cavity 7 above the filter 2, 3. According to the invention, the cover 6 is formed by a lacquer layer 6A which is provided, at the location of the filter 2, 3, with an opening 7′ and which is covered with a photoresist layer 6B closing the opening 7′ such that the cavity 7 thus formed has a thickness above zero everywhere above the filter 2, 3. This enables an accurate and stable frequency selection by means of the filter 2, 3 and allows the device according to the invention to be very compact and easy to manufacture. Thus, the device according to the invention is very suitable for use in an application such as a mobile telephone, also after integration of the device with a semiconductor device. The photoresist layer 6B and the lacquer layer 6A preferably contain further openings 8, at the location of the connection regions 4, 5, which are provided with bumps 9, preferably solder bumps 9. Preferably, the photoresist layer 6B includes a solid foil 6B, which is solder-repellent.

    摘要翻译： 电子设备包括电子部件2,3，例如具有连接区域4,5的SAW（=表面声波）滤波器2,3。过滤器2,3通过形成的盖6与环境密封 在过滤器2,3上方的空腔7.根据本发明，盖6由涂层6A形成，该漆层6A在过滤器2,3的位置处设置有开口7'，并且覆盖有 光致抗蚀剂层6B封闭开口7'，使得如此形成的空腔7的厚度在滤波器2,3之上的任何地方均具有高于零的厚度。这使得能够通过滤波器2,3准确稳定的频率选择，并允许根据 本发明非常紧凑，易于制造。 因此，根据本发明的装置在将装置与半导体装置集成之后也非常适用于诸如移动电话的应用。 光致抗蚀剂层6B和漆层6A优选地在连接区域4,5的位置处包含另外的开口8，所述连接区域4,5设置有凸起9，优选为焊料凸块9.优选地，光致抗蚀剂层6B包括固体箔6B， 这是阻燃剂。