POP (Package-On-Package) device encapsulating soldered joints between externals leads
    31.
    发明申请
    POP (Package-On-Package) device encapsulating soldered joints between externals leads 失效
    POP(封装封装)器件封装了外部引脚之间的焊接接头

    公开(公告)号:US20090127679A1

    公开(公告)日:2009-05-21

    申请号:US11984772

    申请日:2007-11-21

    Abstract: A POP (Package-On-Package) semiconductor device with encapsulating protection of soldered joints between the external leads, primarily comprises a plurality of stacked semiconductor packages and dielectric coating. Each semiconductor package includes at least a chip, a plurality of external leads of leadframe, and an encapsulant where the external leads are exposed and extended from a plurality of sides of the encapsulant. Terminals of a plurality external leads of a top semiconductor package are soldered to the soldered regions of the corresponding external leads of a bottom semiconductor package. The dielectric coating is disposed along the sides of the encapsulant of the bottom semiconductor package to connect the soldered points between the external leads and to partially or completely encapsulate the soldering materials so that the stresses between the soldered joints can be dispersed and no electrical shorts happen.

    Abstract translation: 具有在外部引线之间的焊接接头的封装保护的POP(封装封装)半导体器件主要包括多个堆叠的半导体封装和电介质涂层。 每个半导体封装包括至少一个芯片,多个引线框的外部引线以及外部引线从密封剂的多个侧面露出和延伸的密封剂。 顶部半导体封装的多个外部引线的端子焊接到底部半导体封装的相应外部引线的焊接区域。 电介质涂层沿着底部半导体封装的密封剂的侧面设置,以将焊接点连接到外部引线之间并且部分或完全地封装焊接材料,使得焊接接头之间的应力可以分散并且不发生电短路 。

    IC chip package with near substrate scale chip attachment
    34.
    发明申请
    IC chip package with near substrate scale chip attachment 审中-公开
    IC芯片封装附近具有基板尺寸芯片附件

    公开(公告)号:US20080169551A1

    公开(公告)日:2008-07-17

    申请号:US11653422

    申请日:2007-01-16

    Abstract: An IC package with a near-substrate-scale die-attaching layer includes a substrate, a near-substrate-scale die-attaching layer, a chip, a plurality of bonding wires, an encapsulant, and a plurality of solder balls. A plurality of ball pads are formed on the bottom surface of the substrate for solder ball placement. The near-substrate-scale die-attaching layer is formed on the top surface of the substrate covering most of the top surface above the ball pads without extending to the edges of the top surface. The active surface of the chip is attached to a first portion of the near-substrate-scale die-attaching layer and is electrically connected to the substrate by the bonding wires. The encapsulant is formed above the top surface of the substrate to cover a second portion of the near-substrate-scale die-attaching layer extending between the substrate and the encapsulant. Therefore, without adding extra components, the intense thermal stresses imposed on some specific solder balls at the corners of the bottom surface of the substrate or under the edges of the chip will be reduced. During on-board TCT, the solder balls will not easily be broken so that the reliability of IC package is enhanced. Moreover, the near-substrate-scale die-attaching layer is completely encapsulated by the encapsulant 250 to have a better resistance to moisture.

    Abstract translation: 具有近基板尺寸的芯片安装层的IC封装包括基板,近基板尺寸的芯片安装层,芯片,多个接合线,密封剂和多个焊球。 在用于焊球放置的基板的底面上形成有多个球垫。 接近基板的模具附接层形成在衬底的顶表面上,该顶表面覆盖球垫上方的大部分顶表面,而不延伸到顶表面的边缘。 芯片的有源表面附着在近基板尺寸的芯片安装层的第一部分上,并通过接合线与基板电连接。 密封剂形成在衬底的顶表面之上,以覆盖在衬底和密封剂之间延伸的接近衬底的管芯附着层的第二部分。 因此,在不增加额外的部件的情况下,施加在基板底面的拐角处或芯片边缘下方的一些特定焊球的强烈的热应力将会降低。 在板载TCT期间,焊球不容易断裂,从而提高了IC封装的可靠性。 此外,近基板尺寸的管芯附着层被密封剂250完全包封以具有更好的耐湿性。

    Ball grid array package structure
    37.
    发明申请
    Ball grid array package structure 审中-公开
    球栅阵列封装结构

    公开(公告)号:US20080099890A1

    公开(公告)日:2008-05-01

    申请号:US11589155

    申请日:2006-10-30

    Abstract: A ball grid array package structure includes: a substrate having at least one chip bearing area on its upper surface and a plurality of electrical-connecting points on its lower surface; a plurality of chips are arranged on the chip bearing area and electrically connected with those electrical-connecting points; a plurality of through holes penetrating the substrate at the edge of chip bearing area; an encapsulant used to cover those chip and filling those through holes to form a strengthened bump surrounding the chip bearing area on the lower surface of the substrate; and a plurality of conductive balls are respectively arranged on those electrical-connecting points. The present invention utilizes the strengthened bump on the bottom of the substrate to enhance the structure strength of the substrate so as to avoid the warpage of the substrate caused from the stress due to the temperature variation during the package process to affect the following processes.

    Abstract translation: 球栅阵列封装结构包括:在其上表面上具有至少一个芯片支承区域的基板和其下表面上的多个电连接点; 多个芯片布置在芯片支承区域上并与那些电连接点电连接; 在芯片承载区域的边缘处穿过基板的多个通孔; 用于覆盖那些芯片并填充这些芯片的密封剂,以形成围绕衬底的下表面上的芯片支承区域的加强凸块; 并且在这些电连接点上分别布置有多个导电球。 本发明利用基板底部的加强凸块来增强基板的结构强度,以避免由于包装过程中的温度变化而引起的应力引起的基板翘曲影响以下工艺。

    Laminate substrate and semiconductor package utilizing the substrate
    39.
    发明授权
    Laminate substrate and semiconductor package utilizing the substrate 有权
    利用基板的层叠基板和半导体封装

    公开(公告)号:US07919851B2

    公开(公告)日:2011-04-05

    申请号:US12133841

    申请日:2008-06-05

    Applicant: Wen-Jeng Fan

    Inventor: Wen-Jeng Fan

    Abstract: A laminated substrate and the semiconductor package utilizing the substrate are revealed. The laminated substrate primarily comprises a core layer, a first metal layer and a first solder mask disposed on the bottom surface of the core layer, and a second metal layer and a second solder mask disposed on the top surface of the core layer. The two solder masks have different CTEs to compensate potential substrate warpage caused by thermal stresses. Therefore, the manufacturing cost of the substrate can be reduced without adding extra stiffeners nor changing thicknesses of semiconductor packages to suppress substrate warpage during packaging processes. Especially, a die-attaching layer partially covers the second solder mask by printing and is planar after pre-curing for zero-gap die-attaching.

    Abstract translation: 揭示层叠基板和利用基板的半导体封装。 层叠基板主要包括芯层,第一金属层和设置在芯层的底表面上的第一焊料掩模,以及设置在芯层的顶表面上的第二金属层和第二焊料掩模。 两个焊接掩模具有不同的CTE以补偿由热应力引起的潜在的基板翘曲。 因此,可以减少基板的制造成本,而不增加额外的加强件,也可以改变半导体封装的厚度,以抑制封装工艺期间的基板翘曲。 特别地,芯片安装层通过印刷部分地覆盖第二焊料掩模,并且在预固化之后是平面的,用于零间隙管芯附着。

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