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    • 4. 发明授权
    • Thin semiconductor package and method for manufacturing same
    • 薄半导体封装及其制造方法
    • US08354739B2
    • 2013-01-15
    • US13092159
    • 2011-04-22
    • Yeqing SuZhigang BaiWeimin ChenWei ShenJianhong WangBaoguan YinWanming Yu
    • Yeqing SuZhigang BaiWeimin ChenWei ShenJianhong WangBaoguan YinWanming Yu
    • H01L23/495H01L21/28
    • H01L21/6835H01L21/568H01L23/3107H01L23/49541H01L24/48H01L24/85H01L2224/05554H01L2224/48091H01L2224/48247H01L2224/8501H01L2924/00014H01L2924/18165H01L2224/45099
    • A method for manufacturing a thin semiconductor package includes providing a lead frame with a removable substrate that has an attaching surface attached to a first surface of the lead frame. The lead frame is formed from an electrically conductive sheet and has leads that extend inwardly from a lead frame boundary towards a central region of the lead frame. A semiconductor die is mounted on the removable substrate at the central region. The semiconductor die has a connection pad surface with die pads on it, and the connection pad surface is attached to the attaching surface of the removable substrate. The lead frame and die are encapsulated with a first encapsulant so that the lead frame is sandwiched between the first encapsulant and the removable substrate. The removable substrate is removed from the lead frame to expose the first surface of the lead frame and then the die pads are electrically connected to respective ones of the leads. The die and lead frame then are encapsulated with a second encapsulant so that the lead frame and die are sandwiched between the first and second encapsulants. Part of the first encapsulant is then removed to reduce the thickness of the package and expose the leads.
    • 一种用于制造薄半导体封装的方法,包括:提供具有可移除基板的引线框架,该可移除基板具有附接到引线框架的第一表面的附接表面。 引线框架由导电片形成,并且具有从引线框架边界朝向引线框架的中心区域向内延伸的引线。 半导体管芯安装在中央区域的可拆卸基板上。 半导体管芯具有连接焊盘表面,其上具有焊盘,并且连接焊盘表面附接到可移除基板的附接表面。 引线框架和管芯用第一密封剂封装,使得引线框架夹在第一密封剂和可移除基板之间。 将可移除基板从引线框架移除以露出引线框架的第一表面,然后将管芯焊盘电连接到相应的引线。 然后,管芯和引线框架用第二密封剂封装,使得引线框架和管芯夹在第一和第二密封剂之间。 然后去除部分第一密封剂以减小包装的厚度并暴露引线。