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    • 8. 发明授权
    • Semiconductor element mounting board
    • 半导体元件安装板
    • US08269332B2
    • 2012-09-18
    • US12682649
    • 2008-10-15
    • Mitsuo SuginoHideki HaraToru Meura
    • Mitsuo SuginoHideki HaraToru Meura
    • H01L23/48
    • H01L23/3735H01L23/49833H01L23/5389H01L2924/0002H05K1/0271H05K3/284H05K2203/1322H01L2924/00
    • A semiconductor element mounting board includes: aboard having surfaces; a semiconductor element mounted on one of the surfaces of the board; a first layer into which the semiconductor element is embedded, the first layer being provided on the one surface of the board; a second layer provided on the other surface of the board, the second layer being constituted from the same material as that of the first layer, the constituent material of the second layer having the same composition ratio as that of the constituent material of the first layer; and surface layers provided on the first and second layers, respectively, each of the surface layers being formed from at least a single layer. In such a semiconductor element mounting board, each of the surface layers has rigidity higher than that of each of the first and second layers. It is preferred that in the case where a Young's modulus of each surface layer at 25° C. is defined as X GPa and a Young's modulus of the first layer at 25° C. is defined as Y GPa, the X and the Y satisfy a relation of 0.5≦X−Y≦13.
    • 半导体元件安装板包括:具有表面; 安装在所述板的一个表面上的半导体元件; 第一层,半导体元件被嵌入其中,第一层设置在板的一个表面上; 设置在所述板的另一个表面上的第二层,所述第二层由与所述第一层相同的材料构成,所述第二层的构成材料具有与所述第一层的构成材料相同的组成比 ; 以及分别设置在第一和第二层上的表面层,每个表面层由至少单层形成。 在这样的半导体元件安装基板中,每个表面层的刚性比第一和第二层的刚性要高。 优选的是,将25℃下的各表面层的杨氏模量定义为X GPa,在25℃下将第一层的杨氏模量定义为YGPa的情况下,X和Y满足 关系为0.5≦̸ X-Y≦̸ 13。