POWER SEMICONDUCTOR DEVICE AND PREPARATION METHOD THEREOF
    21.
    发明申请
    POWER SEMICONDUCTOR DEVICE AND PREPARATION METHOD THEREOF 有权
    功率半导体器件及其制备方法

    公开(公告)号:US20150249045A1

    公开(公告)日:2015-09-03

    申请号:US14194502

    申请日:2014-02-28

    Abstract: A preparation method for a power semiconductor device includes: providing a lead frame containing a plurality of chip mounting units, one side edge of a die paddle of each chip mounting unit is bent and extended upwardly and one lead connects to the bent side edge of the die paddle and extends in an opposite direction from the die paddle; attaching a semiconductor chip to the top surface of the die paddle; forming metal bumps on each electrode at the front of the semiconductor chip with a top end of each metal bump protruding out of a plane of the top surface of the lead; heating the metal bump and pressing a top end of each metal bump by a pressing plate forming a flat top end surface that is flush with the top surface of the lead; and cutting the lead frame to separate individual chip mounting units.

    Abstract translation: 一种功率半导体器件的制备方法,包括:提供包含多个芯片安装单元的引线框架,每个芯片安装单元的模板的一个侧边缘向上弯曲并向上延伸,并且一个引线连接到所述芯片安装单元的弯曲侧边缘 模具桨,并且在与模桨相反的方向上延伸; 将半导体芯片附接到所述管芯焊盘的顶表面; 在半导体芯片的前面的每个电极上形成金属凸块,每个金属凸块的顶端从引线的顶表面的平面突出; 加热金属凸块并通过压板压制每个金属凸块的顶端,该压板形成与引线顶表面齐平的平坦顶端表面; 并切割引线框架以分离各个芯片安装单元。

    A SEMICONDUCTOR PACKAGE OF A FLIPPED MOSFET
    24.
    发明申请
    A SEMICONDUCTOR PACKAGE OF A FLIPPED MOSFET 有权
    襟翼MOSFET的半导体封装

    公开(公告)号:US20140361418A1

    公开(公告)日:2014-12-11

    申请号:US13913183

    申请日:2013-06-07

    Abstract: The invention relates to a semiconductor package of a flip chip and a method for making the semiconductor package. The semiconductor chip comprises a metal-oxide-semiconductor field effect transistor. On a die paddle including a first base, a second base and a third base, half-etching or punching is performed on the top surfaces of the first base and the second base to obtain plurality of grooves that divide the top surface of the first base into a plurality of areas comprising multiple first connecting areas, and divide the top surface of the second base into a plurality of areas comprising at least a second connecting area. The semiconductor chip is connected to the die paddle at the first connecting areas and the second connecting area.

    Abstract translation: 本发明涉及倒装芯片的半导体封装以及制造半导体封装的方法。 半导体芯片包括金属氧化物半导体场效应晶体管。 在包括第一基底,第二基底和第三基底的裸片上,在第一基底和第二基底的顶表面上进行半蚀刻或冲孔,以获得多个凹槽,该凹槽将第一基底 进入包括多个第一连接区域的多个区域,并且将第二基座的顶表面分成包括至少第二连接区域的多个区域。 半导体芯片在第一连接区域和第二连接区域处连接到管芯焊盘。

    DOUBLE-SIDE EXPOSED SEMICONDUCTOR DEVICE AND ITS MANUFACTURING METHOD
    30.
    发明申请
    DOUBLE-SIDE EXPOSED SEMICONDUCTOR DEVICE AND ITS MANUFACTURING METHOD 有权
    双面暴露半导体器件及其制造方法

    公开(公告)号:US20130026615A1

    公开(公告)日:2013-01-31

    申请号:US13193474

    申请日:2011-07-28

    Abstract: A double-side exposed semiconductor device includes an electric conductive first lead frame attached on top of a thermal conductive but electrical nonconductive second lead frame and a semiconductor chip flipped and attached on top of the first lead frame. The gate and source electrodes on top of the flipped chip form electrical connections with gate and source pins of the first lead frame respectively. The flipped chip and center portions of the first and second lead frames are then encapsulated with a molding compound, such that the heat sink formed at the center of the second lead frame and the drain electrode at bottom of the semiconductor chip are exposed on two opposite sides of the semiconductor device. Thus, heat dissipation performance of the semiconductor device is effectively improved without increasing the size of the semiconductor device.

    Abstract translation: 双面露出的半导体器件包括安装在导热但不导电的第二引线框架的顶部的导电第一引线框架和翻转并附接在第一引线框架顶部上的半导体芯片。 翻转芯片顶部的栅极和源极电极分别与第一引线框架的栅极和源极引脚形成电连接。 第一和第二引线框架的翻转芯片和中心部分然后用模塑料封装,使得形成在第二引线框架的中心处的散热器和在半导体芯片的底部的漏电极暴露在两个相对的 半导体器件的侧面。 因此,在不增加半导体器件的尺寸的情况下,有效地提高了半导体器件的散热性能。

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