Semiconductor package and a printed circuit board applicable to its
mounting
    12.
    发明授权
    Semiconductor package and a printed circuit board applicable to its mounting 失效
    半导体封装和适用于其安装的印刷电路板

    公开(公告)号:US5450289A

    公开(公告)日:1995-09-12

    申请号:US206179

    申请日:1994-03-07

    Abstract: An arrangement for vertically mounting a semiconductor device to a substrate, e.g., a printed circuit board (PCB), in which a plurality of sequentially arranged external leads of the semiconductor device include at least three different sets of non-consecutive ones of the external leads which have laterally outwardly extending foot portions lying in respective, vertically spaced-apart planes, and in which the foot portions of first and second ones of the sets of non-consecutive external leads are respectively secured to respective first and second steps formed in one of a plurality of walls defining a cavity in the PCB, and a third set of the non-consecutive external leads are secured to a portion of a major surface of the PCB adjacent the cavity.

    Abstract translation: 用于将半导体器件垂直安装到衬底(例如印刷电路板(PCB))的布置,其中半导体器件的多个顺序排列的外部引线包括至少三个不同的一组不连续的外部引线 其具有位于相应的,垂直间隔开的平面中的横向向外延伸的脚部分,并且其中第一和第二组非连续外部引线的脚部分别固定到相应的第一和第二台阶, 在PCB中限定空腔的多个壁,以及第三组非连续外部引线固定到邻近空腔的PCB的主表面的一部分。

    High density vertically mounted semiconductor package
    20.
    发明授权
    High density vertically mounted semiconductor package 失效
    高密度垂直安装的半导体封装

    公开(公告)号:US5349235A

    公开(公告)日:1994-09-20

    申请号:US111518

    申请日:1993-08-25

    Abstract: A semiconductor chip package comprises leads which protrude from one side of a package body, and support portions which are formed at both ends of the package body on either side of the leads for firmly mounting the package on a printed circuit board (PCB). The support portions are made of a same material as the package body. At the package body, a slot is formed to further protect the leads, and the leads are alternately formed to mount the packages close by. Thus, there is no additional process step for forming holes in the PCB to mount the support portions of the semiconductor package, so the mounting process of the package becomes simpler. The support portions which protrude from the package body permit the package to be mounted on the PCB firmly. The slot and support portions protect the leads and prevent the leads from being deformed by external forces, thereby improving the reliability of the semiconductor package. Also, since the leads are alternately formed and the packages can be mounted near to each other, the package occupies only a small area of the PCB, thereby improving the packing density.

    Abstract translation: 半导体芯片封装包括从封装主体的一侧突出的引线,以及在引线的两侧形成在封装主体的两端的支撑部分,用于将封装牢固地安装在印刷电路板(PCB)上。 支撑部分由与包装体相同的材料制成。 在封装主体上,形成一个槽以进一步保护引线,并且引线交替地形成为将封装安装在靠近处。 因此,没有用于在PCB中形成孔以安装半导体封装的支撑部分的附加工艺步骤,因此封装的安装过程变得更简单。 从包装体突出的支撑部分使得包装件能够牢固地安装在PCB上。 槽和支撑部分保护引线并防止引线由于外力而变形,从而提高半导体封装的可靠性。 此外,由于引线交替形成并且封装可以彼此靠近地安装,所以封装仅占用PCB的小面积,从而提高封装密度。

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