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    • 5. 发明申请
    • Method for stacking BGA packages and structure from the same
    • 堆叠BGA封装的方法及其结构
    • US20060110849A1
    • 2006-05-25
    • US11210700
    • 2005-08-25
    • Cheng-Yin LeeWei-Chang Tai
    • Cheng-Yin LeeWei-Chang Tai
    • H01L21/00
    • H01L25/50H01L24/73H01L25/105H01L2224/32225H01L2224/48091H01L2224/48227H01L2224/73265H01L2225/1023H01L2225/1058H01L2924/14H01L2924/15311H01L2924/15331H05K3/3436H01L2924/00014H01L2924/00H01L2924/00012
    • The present invention relates to a method for stacking BGA packages. At first, a first BGA package is provided. The first BGA package includes a first substrate, at least one first chip and a plurality of first connecting balls. The first substrate has a first upper surface and a first bottom surface. The first chip is disposed on the first upper surface. The first connecting balls are disposed on a plurality of first connecting pads of the first upper surface. Then, a second BGA package is provided. The second BGA package includes a second substrate, at least one second chip and a plurality of second connecting balls. The second substrate has a second upper surface and a second bottom surface. The second connecting balls are disposed on a plurality of second connecting pads of the second bottom surface. The second BGA package is stacked on the first BGA package for the second connecting balls to contact the corresponding first connecting balls. Then, the first connecting balls and the corresponding second connecting balls are reflowed into a plurality of integrated spacer balls. The spacer balls connect the first connecting pads and the second connecting pads for providing a stack gap.
    • 本发明涉及一种用于堆叠BGA封装的方法。 首先,提供了第一个BGA封装。 第一BGA封装包括第一衬底,至少一个第一芯片和多个第一连接球。 第一基板具有第一上表面和第一底表面。 第一芯片设置在第一上表面上。 第一连接球设置在第一上表面的多个第一连接焊盘上。 然后,提供第二个BGA封装。 第二BGA封装包括第二衬底,至少一个第二芯片和多个第二连接球。 第二基板具有第二上表面和第二底表面。 第二连接球设置在第二底面的多个第二连接垫上。 第二个BGA封装堆叠在第一个BGA封装上,用于第二个连接球接触相应的第一个连接球。 然后,将第一连接球和相应的第二连接球回流到多个集成的间隔球。 间隔球连接第一连接焊盘和第二连接焊盘,以提供堆叠间隙。