Printed circuit board having outer power planes
    48.
    发明申请
    Printed circuit board having outer power planes 有权
    具有外部电源平面的印刷电路板

    公开(公告)号:US20040201971A1

    公开(公告)日:2004-10-14

    申请号:US10408951

    申请日:2003-04-08

    Abstract: A multi-layer printed circuit board (PCB) routes signal traces on internal signal layer(s) and includes power planes on the two outermost layers. The outer layers are maintained at the same non-ground voltage level, and are electrically connected by a series of vias that circumscribe signal traces on the internal layer(s). With a preferred maximum spacing of one-tenth the wavelength of electromagnetic energy generated by the signal traces, the vias, together with the outer power planes, contain electromagnetic energy within the PCB. One or more of the outer planes may include a second power plane area maintained at a different voltage. The two power plane areas are connected by decoupling capacitors, located proximate underlying signal traces that traverse the two power plane areas.

    Abstract translation: 多层印刷电路板(PCB)在内部信号层上传送信号迹线,并且包括两个最外层的电源层。 外层保持在相同的非接地电压电平,并且通过一系列通孔来电连接,这些通孔围绕内层上的信号迹线。 通过由信号迹线产生的电磁能量波长的十分之一的优选最大间距,通孔与外部电源平面在PCB内包含电磁能。 一个或多个外平面可以包括维持在不同电压的第二电源平面区域。 两个电力平面区域通过去耦电容器连接,位于邻近穿过两个电源平面区域的底层信号迹线。

    Semiconductor package
    49.
    发明申请
    Semiconductor package 有权
    半导体封装

    公开(公告)号:US20020158341A1

    公开(公告)日:2002-10-31

    申请号:US10123211

    申请日:2002-04-17

    Inventor: Kei Murayama

    Abstract: A semiconductor package provided with an interconnection layer including an interconnection pattern and pad formed on an insulating substrate or insulating layer, a protective layer covering the interconnection layer except at the portion of the pad and the insulating substrate or insulating layer, and an external connection terminal bonded with the pad exposed from the protective layer, the pad to which the external connection terminal is bonded being comprised of a plurality of pad segments, sufficient space being opened for passing an interconnection between pad segments, and the pad segments being comprised of at least one pad segment connected to an interconnection and other pad segments not connected to interconnections.

    Abstract translation: 一种半导体封装,其具有包括形成在绝缘基板或绝缘层上的互连图案和焊盘的互连层,覆盖所述焊盘部分以外的所述互连层的保护层和绝缘基板或绝缘层,以及外部连接端子 与从保护层暴露的焊盘接合,外部连接端子被接合到的焊盘由多个焊盘段组成,足够的空间被打开以通过焊盘段之间的互连,并且焊盘段至少包括 连接到互连的一个焊盘段和未连接到互连的其它焊盘段。

    Printed circuit board having a heating element and heating method thereof
    50.
    发明授权
    Printed circuit board having a heating element and heating method thereof 失效
    具有加热元件的印刷电路板及其加热方法

    公开(公告)号:US06184494B2

    公开(公告)日:2001-02-06

    申请号:US09478584

    申请日:2000-01-06

    Abstract: The present invention relates to a heating method and a printed circuit board comprising a heating element which generates heat required to heat printed circuit board components. The printed circuit board comprises heat conductor between the heating element and the component to be heated, the heat conductor receiving heat generated by the heating element and conducting the heat along the surface of the printed circuit board beneath the lower surface of the component to be heated. Furthermore, the printed circuit board comprises conductor parts which are narrower that the heat conductor, or which have a smaller cross-sectional surface area than does the heat conductor, and which restrict heat transfer away from the heat conductor to a component other than the one to be heated when the heat conductor functions as a ground plane or a signal path.

    Abstract translation: 本发明涉及加热方法和印刷电路板,其包括产生加热印刷电路板部件所需的热的加热元件。 印刷电路板包括加热元件和待加热元件之间的导热体,热导体接收由加热元件产生的热量,并沿着待加热元件的下表面的印刷电路板表面传导热量 。 此外,印刷电路板包括导体部分,导体部分比热导体更窄,或者具有比导热体更小的横截面表面积,并且限制热传导远离热导体到除了导体之外的部件 当热导体用作接地平面或信号路径时被加热。

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