发明名称 Method of forming stacked die package
摘要 A method of packaging semiconductor integrated circuits, including the steps of providing a transfer film and forming a patterned, conductive layer on a surface of the transfer film. A first semiconductor integrated circuit (IC) then is attached to the transfer film, where an active side of the first IC is attached to the transfer film. A second semiconductor IC then is attached to the first IC, where a bottom side of the second IC is attached to a bottom side of the first IC. Die pads on an active surface of the second IC are electrically connected to the conductive layer with wires and then a resin material is provided on one side of the transfer film to encapsulate the first and second ICs, the wires and a portion of the conductive layer. Next the transfer film is removed, which exposes the active side of the first IC and the conductive layer. An electrical distribution layer is formed over the active side of the first IC and the conductive layer and conductive balls are attached to the electrical distribution layer. The conductive balls allow electrical interconnection to the first and second integrated circuits.
申请公布号 US7955953(B2) 申请公布日期 2011.06.07
申请号 US20070957486 申请日期 2007.12.17
申请人 FREESCALE SEMICONDUCTOR, INC. 发明人 LO WAI YEW;YIP HENG KEONG
分类号 H01L21/00;H01L23/495 主分类号 H01L21/00
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