Method for reducing warpage during application and curing of encapsulant materials on a printed circuit board
    9.
    发明申请
    Method for reducing warpage during application and curing of encapsulant materials on a printed circuit board 失效
    在印刷电路板上封装材料的施加和固化期间减少翘曲的方法

    公开(公告)号:US20050087909A1

    公开(公告)日:2005-04-28

    申请号:US11011624

    申请日:2004-12-13

    IPC分类号: H05K3/28 H05K13/00 B29C35/02

    摘要: A method and apparatus for preventing board warpage during the application and curing or drying of liquid epoxies, or the like, on printed circuit boards using a clamping fixture assembly, which includes at least one clamping fixture support and at least one clamping fixture overlay. If desired, a plurality of printed circuit boards may be processed using an appropriate clamping fixture assembly. Furthermore, the clamping fixture maybe constructed so a slightbow or curvature thereof can counter either a convex or concave bow or curvature of the printed circuit board.

    摘要翻译: 一种用于在使用夹紧夹具组件的印刷电路板上施加和固化或干燥液体环氧树脂等期间防止板翘曲的方法和装置,其包括至少一个夹紧夹具支架和至少一个夹紧固定盖。 如果需要,可以使用适当的夹具组件来处理多个印刷电路板。 此外,夹持夹具可以构造成轻微的弯头或其曲率可以抵消印刷电路板的凸形或凹形弓形或曲率。

    Alignment and orientation features for a semiconductor package
    10.
    发明申请
    Alignment and orientation features for a semiconductor package 有权
    半导体封装的对准和取向特征

    公开(公告)号:US20050148116A1

    公开(公告)日:2005-07-07

    申请号:US11059593

    申请日:2005-02-16

    摘要: A semiconductor device formed by an automated wire bonding system. The semiconductor device comprises a lead frame having a plurality of lead fingers and a die paddle, and a semiconductor die mounted to the die paddle. The die paddle comprises a plurality of eyepoint features that extend from the die. The die comprises a first plurality of bonding pads and the lead fingers comprise a second plurality of bonding pads. The first and second bonding pads are interconnected by a plurality of connecting wires which are installed by the automated wire bonding system. The wire bonding system obtains an image of the lead frame and identifies the eyepoint features of the die paddle within the image so as to more accurately determine the positions of the second wire bonding pads of the lead frame with respect to the wire bonding system

    摘要翻译: 一种由自动引线接合系统形成的半导体器件。 半导体器件包括具有多个引线指和管芯焊盘的引线框架和安装到管芯焊盘的半导体管芯。 模板包括从模具延伸的多个眼点特征。 芯片包括第一多个接合焊盘,并且引线指包括第二多个接合焊盘。 第一和第二接合焊盘通过由自动引线接合系统安装的多个连接线互连。 引线接合系统获得引线框架的图像,并且识别图像内的管芯焊盘的眼点特征,以便更精确地确定引线框架的第二引线接合焊盘相对于引线接合系统的位置