Method of manufacturing quad flat non-leaded semiconductor package
    3.
    发明申请
    Method of manufacturing quad flat non-leaded semiconductor package 审中-公开
    制造四边形非铅半导体封装的方法

    公开(公告)号:US20070059863A1

    公开(公告)日:2007-03-15

    申请号:US11486569

    申请日:2006-07-14

    IPC分类号: H01L21/00

    摘要: A method of manufacturing a quad flat non-leaded semiconductor package is provided. A metal plate is prepared and is defined with predetermined positions of a plurality of electrically conductive pads. A resist layer is formed on the metal plate, and a plurality of openings are formed in the resist layer and correspond to the predetermined positions of the electrically conductive pads. A solderable metal plated layer is formed in each of the openings of the resist layer. The resist layer on the metal plate is removed. A portion of the metal plate, which is not covered by the metal plated layers, is etched using the metal plated layers as a mask. A chip is mounted on the metal plate and is electrically connected to the electrically conductive pads. A molding process is performed such that the chip and the metal plate are encapsulated by an encapsulant.

    摘要翻译: 提供一种制造四边形非铅半导体封装的方法。 制备金属板并且被限定在多个导电焊盘的预定位置。 在金属板上形成抗蚀剂层,并且在抗蚀剂层中形成多个开口并对应于导电焊盘的预定位置。 在抗蚀剂层的每个开口中形成可焊接金属镀层。 去除金属板上的抗蚀剂层。 使用金属镀层作为掩模来蚀刻未被金属镀层覆盖的金属板的一部分。 芯片安装在金属板上并与导电焊盘电连接。 进行成型工艺,使得芯片和金属板被密封剂包封。

    Semiconductor package with heat dissipating structure
    10.
    发明授权
    Semiconductor package with heat dissipating structure 失效
    具有散热结构的半导体封装

    公开(公告)号:US06696750B1

    公开(公告)日:2004-02-24

    申请号:US10395561

    申请日:2003-03-24

    IPC分类号: H01L23495

    摘要: A semiconductor package with a heat dissipating structure is provided, including a lead frame with a die pad for allowing a chip to be mounted on an upper surface of the die pad, and a heat sink abutting against a lower surface of the die pad. A top surface of the heat sink, in contact with the lower surface of the die pad, is formed with at least a recessed portion. During a molding process of using a resin material to form an encapsulant for encapsulating the chip, lead frame and heat sink, the resin material fills into the recessed portion and forms a supporting member between the die pad and heat sink to provide support for a central portion of the die pad, so as to prevent the chip from cracking in a step of building up a packing pressure of the molding process, thereby assuring yield and reliability of fabricated products.

    摘要翻译: 提供了一种具有散热结构的半导体封装,包括具有用于允许芯片安装在管芯焊盘的上表面上的管芯焊盘的引线框架和抵靠在管芯焊盘的下表面的散热片。 与散热片的下表面接触的散热器的顶表面至少形成有凹部。 在使用树脂材料形成用于封装芯片,引线框架和散热器的密封剂的模塑过程中,树脂材料填充到凹部中并在芯片焊盘和散热器之间形成支撑构件,以为中心 以便在建立成形工序的包装压力的步骤中防止芯片破裂,从而确保制成品的成品率和可靠性。