MUTUAL CAPACITANCE AND MAGNETIC FIELD DISTRIBUTION CONTROL FOR TRANSMISSION LINES
    33.
    发明申请
    MUTUAL CAPACITANCE AND MAGNETIC FIELD DISTRIBUTION CONTROL FOR TRANSMISSION LINES 有权
    传输线的电容和磁场分配控制

    公开(公告)号:US20120234582A1

    公开(公告)日:2012-09-20

    申请号:US13484719

    申请日:2012-05-31

    Abstract: Magnetic field distribution and mutual capacitance control for transmission lines are provided. A first circuit board is fabricated by attaching a reference plane layer to a dielectric material layer, and attaching a first trace to the second surface of the dielectric material. A surface profile of the reference plane layer is modified to decrease a resistance of a return current signal path through the reference plane layer, to reduce a magnetic field coupling between the first trace and a second trace. A second circuit board is fabricated by attaching a reference plane layer to a dielectric material layer, attaching a trace to the dielectric material, and forming a solder mask layer on the dielectric material layer over the trace. An effective dielectric constant of the solder mask layer is modified to reduce or increase a mutual capacitance between the first trace and a second trace on the dielectric material.

    Abstract translation: 提供传输线的磁场分布和互电容控制。 通过将参考平面层附着到介电材料层并且将第一迹线附接到电介质材料的第二表面来制造第一电路板。 修改参考平面层的表面轮廓以减小通过参考平面层的返回电流信号路径的电阻,以减小第一迹线和第二迹线之间的磁场耦合。 通过将参考平面层附着到电介质材料层,将迹线附着到电介质材料上,以及在迹线上的介电材料层上形成焊料掩模层来制造第二电路板。 修改焊接掩模层的有效介电常数以减小或增加介电材料上的第一迹线和第二迹线之间的互电容。

    SEMICONDUCTOR PACKAGE AND FABRICATION METHOD
    40.
    发明申请
    SEMICONDUCTOR PACKAGE AND FABRICATION METHOD 有权
    半导体封装和制造方法

    公开(公告)号:US20110034022A1

    公开(公告)日:2011-02-10

    申请号:US12905540

    申请日:2010-10-15

    Inventor: Junichi Nakamura

    Abstract: A semiconductor package and a fabrication method thereof are disclosed, whereby an environmental problem is solved by using external connection terminals or semiconductor element-mounting terminals containing a smaller amount of lead, while at the same time achieving a fine pitch of the terminals. The semiconductor package includes a board (20) including a plurality of insulating resin layers, semiconductor element-mounting terminals (18) formed on the uppermost surface of the board, and external connection terminals (12) formed on the bottom surface thereof. Each external connection terminal (12) is formed as a bump projected downward from the bottom surface of the package, and each bump is filled with the insulating resin (14) while the surface thereof is covered by a metal (16). Wiring 124), (26) including a conductor via (26a) electrically connect the metal of the metal layer 16 and the semiconductor element-mounting terminals (18).

    Abstract translation: 公开了一种半导体封装及其制造方法,通过使用包含较少量的引线的外部连接端子或半导体元件安装端子,同时实现端子的精细间距来解决环境问题。 半导体封装包括:多个绝缘树脂层的基板(20),形成在基板的最上表面上的半导体元件安装端子(18)和形成在其底面上的外部连接端子(12)。 每个外部连接端子(12)形成为从封装的底表面向下突出的凸起,并且每个凸起都填充有绝缘树脂(14),同时其表面被金属(16)覆盖。 包括导体通孔(26a)的布线124),(26)将金属层16的金属与半导体元件安装端子(18)电连接。

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