Method for making a semiconductor package having improved defect testing and increased production yield
    7.
    发明授权
    Method for making a semiconductor package having improved defect testing and increased production yield 有权
    制造具有改进的缺陷测试和提高生产产量的半导体封装的方法

    公开(公告)号:US06475827B1

    公开(公告)日:2002-11-05

    申请号:US09687532

    申请日:2000-10-13

    IPC分类号: H01L2144

    摘要: A method for making a packaged semiconductor having improved defect testing and increased production yield. The method includes providing a plurality of unit leadframes in a matrix, wherein each of the leadframes comprises a die pad connected to the leadframes by a plurality of tie bars, a plurality of tabs extending from each of the unit leadframes towards the respective die pad without contacting the die pad, and a plurality of dam bars provided on a boundary of the tabs. Next a semiconductor chip having a plurality of bond pads is mounted to a first surface of the die pad in each of said unit leadframes via an adhesive. The bond wires between each of the plurality of die pads are electrically connected to the respective semiconductor chip in each of the plurality of unit leadframes. Each of the unit leadframes is then encapsulated with an encapsulant. Each of the unit semiconductor packages is singulated from the matrix by cutting said dam bars between the tabs in each of the unit leadframes on two X-axes simultaneously, while leaving a connection between the tie bars and the unit leadframes intact. Then, each of the unit semiconductor packages are cut at the dam bars between the tabs on two Y-axes simultaneously, while leaving a connection between the tie bars and the unit leadframes intact. The entire matrix is next tested. Finally, the tie bars in each unit semiconductor package is cut to separate the semiconductor packages from the matrix.

    摘要翻译: 一种制造具有改进的缺陷测试和提高的生产产量的封装半导体的方法。 该方法包括在矩阵中提供多个单位引线框架,其中每个引线框架包括通过多个连接条连接到引线框架的管芯焊盘,从每个单元引线框架朝向相应管芯焊盘延伸的多个突片, 接触所述管芯焊盘,以及设置在所述突出部的边界上的多个堤坝。 接下来,具有多个接合焊盘的半导体芯片通过粘合剂安装到每个所述单元引线框架中的管芯焊盘的第一表面。 多个管芯焊盘中的每一个之间的接合线电连接到多个单元引线框架中的每一个中的相应的半导体芯片。 每个单元引线框然后用密封剂封装。 每个单元半导体封装通过在两个X轴上的每个单元引线框架中的突片之间切割所述阻挡条,同时在连接条和单元引线框之间保持连接的同时,从矩阵中分离。 然后,每个单元半导体封装在两个Y轴上的突片之间的阻挡条上同时切割,同时保持连接条和单元引线框之间的连接完整。 接下来测试整个矩阵。 最后,切割每个单位半导体封装中的连接条以将半导体封装与基体分开。