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    • 6. 发明授权
    • Semiconductor module
    • 半导体模块
    • US08335086B2
    • 2012-12-18
    • US12685306
    • 2010-01-11
    • Masahiro MurakamiMasahiko KushinoAkiteru DeguchiYoshihisa Amano
    • Masahiro MurakamiMasahiko KushinoAkiteru DeguchiYoshihisa Amano
    • H05K7/02H05K7/06H05K7/08H05K7/10
    • H05K1/0271H01L25/16H01L2224/16225H01L2924/00011H01L2924/00014H01L2924/19105H05K1/144H05K1/181H05K3/341H05K2201/09136H05K2201/10204H01L2224/0401
    • A top panel, which is disposed to face a module board with an electronic component therebetween, includes a resin layer and a metal layer, and has an insulating characteristic. The metal layer includes a metal layer formed at a front side of the resin layer and a metal layer formed at a rear side of the resin layer. With this structure, in reflow soldering performed in mounting a semiconductor module on a main board, warp which is caused, under temperature change, in the top panel due to difference in coefficient of thermal expansion between the resin layer and the metal layer formed at the front side of the resin layer is cancelled by warp which is caused, under temperature change, in the top panel due to difference in coefficient of thermal expansion between the resin layer and the metal layer formed at the rear side of the resin layer, whereby warp of the top panel is eliminated. This helps prevent the electronic component adhered to the top panel with adhesive from being pressed down to or pulled up from the module board due to warp of the top panel.
    • 面对其间具有电子部件的模块板的顶板包括树脂层和金属层,并且具有绝缘特性。 金属层包括在树脂层的前侧形成的金属层和形成在树脂层的后侧的金属层。 利用这种结构,在将半导体模块安装在主板上进行的回流焊接中,由于在树脂层和形成在该主板上的金属层之间的热膨胀系数的差异,在顶板中在温度变化时引起的翘曲 树脂层的前侧由于在树脂层和形成在树脂层的后侧的金属层之间的热膨胀系数的差异而在顶板中由于温度变化引起的翘曲而消除,由此翘曲 的顶板被淘汰。 这有助于防止由于顶板的翘曲而使粘合剂附着在顶板上的电子部件被压下或从模块板拉出。