Semiconductor package with leads on a chip having multi-row of bonding pads
    71.
    发明授权
    Semiconductor package with leads on a chip having multi-row of bonding pads 失效
    带芯片的半导体封装,具有多排焊盘

    公开(公告)号:US07723828B2

    公开(公告)日:2010-05-25

    申请号:US12068613

    申请日:2008-02-08

    IPC分类号: H01L23/495

    摘要: A LOC leadframe-based semiconductor package includes a chip with multiple rows of bonding pads. At least a bus bar is attached to the chip and is disposed between a first row of bonding pads and the fingers of the leads. A plurality of bonding wires electrically connect the first row of bonding pads to the fingers of the leads. The portion of the bus bar attached to the active surface of the chip includes a bent section bent away from the fingers. A long bonding wire electrically connects one of a second row of bonding pads to one of the fingers of the leads by overpassing the bent section. Therefore, the distance between the long bonding wire and the bus bar is increased to avoid electrical short between the long bonding wire and the bus bar and to enhance the quality of electrical connections of the LOC semiconductor package.

    摘要翻译: LOC引线框架半导体封装包括具有多排焊盘的芯片。 至少一个母线连接在芯片上,并且设置在第一排接合焊盘和引线的指状物之间。 多个接合线将第一排接合焊盘电连接到引线的指状物。 汇流条附接到芯片的有效表面的部分包括弯曲部分,该弯曲部分远离手指弯曲。 长接合线通过超过弯曲部分将第二排接合焊盘中的一个电线连接到引线的一个指状物。 因此,长接合线和母线之间的距离增加,以避免长接合线和母线之间的电短路并且提高LOC半导体封装的电连接的质量。

    LEADFRAME-BASED SEMICONDUCTOR PACKAGE HAVING ARCHED BEND IN A SUPPORTING BAR AND LEADFRAME FOR THE PACKAGE
    73.
    发明申请
    LEADFRAME-BASED SEMICONDUCTOR PACKAGE HAVING ARCHED BEND IN A SUPPORTING BAR AND LEADFRAME FOR THE PACKAGE 有权
    基于LEADFRAME的半导体封装在支撑条和包装中的引线弯曲

    公开(公告)号:US20090302443A1

    公开(公告)日:2009-12-10

    申请号:US12133898

    申请日:2008-06-05

    IPC分类号: H01L23/495

    摘要: A leadframe-based semiconductor package and a leadframe for the package are revealed. The semiconductor package primarily includes parts of the leadframe including one or more first leads, one or more second leads, and a supporting bar disposed between the first leads and the second leads and further includes a chip attached to the first leads, the second leads and the supporting bar, a plurality of bonding wires and an encapsulant. The supporting bar has an extended portion projecting from the first bonding finger and the second bonding finger and connected to a non-lead side of the encapsulant wherein the extended portion has an arched bend to absorb the pulling stresses and to block stress transmission. Cracks caused by delamination of the supporting bar will not be created during trimming the supporting bar along the non-lead side of the encapsulant. Moisture penetration along the cracks of the supporting bar to the die- bonding plane under the chip is desirably prevented.

    摘要翻译: 揭示了一种基于引线框架的半导体封装和封装的引线框架。 半导体封装主要包括引线框架的包括一个或多个第一引线,一个或多个第二引线和布置在第一引线和第二引线之间的支撑杆的部分,还包括附接到第一引线,第二引线和 支撑杆,多根接合线和密封剂。 支撑杆具有从第一接合指和第二接合指突起的延伸部分,并且连接到密封剂的非引线侧,其中延伸部具有拱形弯曲部以吸收拉应力并阻止应力传递。 在沿着密封剂的非引线侧修整支撑杆时不会产生由支撑杆分层引起的裂纹。 希望防止沿着支撑杆的裂纹向芯片下方的芯片接合平面的水分渗透。

    SUBSTRATE STRIP FOR SEMICONDUCTOR PACKAGES
    75.
    发明申请
    SUBSTRATE STRIP FOR SEMICONDUCTOR PACKAGES 有权
    半导体封装的衬底条

    公开(公告)号:US20090224395A1

    公开(公告)日:2009-09-10

    申请号:US12042086

    申请日:2008-03-04

    申请人: Wen-Jeng FAN

    发明人: Wen-Jeng FAN

    IPC分类号: H01L23/48

    摘要: A substrate strip for semiconductor packages to slow the crack growth, primarily comprises a molding area and two side rails. The molding area includes a plurality of packaging units. The side rails are located outside the molding area and include two opposing longer sides of the substrate strip. A metal mesh is disposed on the side rails. The metal mesh consists of a plurality of crisscrossed wires having a plurality of isolated wire terminals at one edge of the metal mesh. Accordingly, crack growth is slowed by the specific metal mesh without damaging the packaging units. In one embodiment, the metal mesh is without boundary wires connecting to the isolated wire terminals to enhance the resistance to crack growth.

    摘要翻译: 用于半导体封装的用于减缓裂纹扩展的衬底条主要包括模制区和两个侧轨。 成型区域包括多个包装单元。 侧轨位于模制区域的外侧,并且包括衬底条的两个相对的较长边。 金属网布置在侧轨上。 金属网由在金属网的一个边缘处具有多个隔离的导线端子的多个十字交叉的导线组成。 因此,特定金属网的裂纹扩展减慢,而不损害包装单元。 在一个实施例中,金属网没有连接到隔离导线端子的边界线,以增强对裂纹扩展的抵抗力。

    IC package keeping attachment level of leads on chip during molding process
    79.
    发明申请
    IC package keeping attachment level of leads on chip during molding process 审中-公开
    IC封装在成型过程中保持片上引线的附着水平

    公开(公告)号:US20080116547A1

    公开(公告)日:2008-05-22

    申请号:US11600919

    申请日:2006-11-17

    申请人: Wen-Jeng Fan

    发明人: Wen-Jeng Fan

    IPC分类号: H01L23/495

    摘要: An IC package keeping the attachment level of leads on chip during molding process, mainly comprises a plurality of leads of a Lead-On-Chip (LOC) leadframe, a chip adhered under the leads, a plurality of bonding wires electrically connecting the chip to the leads, a plurality of first supporting columns disposed above some of the leads, a plurality of second supporting columns disposed under the some of the leads and a molding compound. The molding compound encapsulates the chip, the bonding wires, inner portions of the leads and sides of the first and second supporting columns. Therein, the first and second supporting columns are longitudinally corresponding to each other and adjacent the chip. The thickness including one of the first supporting columns, a corresponding one of the second supporting columns and one of the leads disposed corresponding to the selected first supporting column and the selected second supporting column is approximately as same as that of the molding compound. By means of the supporting columns in the package, it is able to prevent the problems of chip displacement during molding process and exposure of chip backside or the bonding wires.

    摘要翻译: 一种在成型工艺中保持芯片引线附着水平的IC封装,主要包括芯片上引线框架(LOC)的多个引线,引线下方的芯片,将芯片电连接到 引线,设置在一些引线上方的多个第一支撑柱,设置在一些引线下方的多个第二支撑柱和模制化合物。 模塑料封装芯片,接合线,引线的内部和第一和第二支撑柱的侧面。 其中,第一和第二支撑柱纵向对应并且与芯片相邻。 包括第一支撑柱中的一个,相应的一个第二支撑柱和与所选择的第一支撑柱相对应设置的一个引线和所选择的第二支撑柱之间的厚度大致与模塑料的相同。 通过封装中的支撑柱,可以防止模制过程中芯片位移的问题和芯片背面或接合线的暴露。