SUBSTRATE COMPRISING INORGANIC MATERIAL THAT LOWERS THE COEFFICIENT OF THERMAL EXPANSION (CTE) AND REDUCES WARPAGE
    4.
    发明申请
    SUBSTRATE COMPRISING INORGANIC MATERIAL THAT LOWERS THE COEFFICIENT OF THERMAL EXPANSION (CTE) AND REDUCES WARPAGE 有权
    包含无机材料的基板,降低热膨胀系数(CTE)并减少翘曲

    公开(公告)号:US20140356635A1

    公开(公告)日:2014-12-04

    申请号:US13967186

    申请日:2013-08-14

    发明人: Chin-Kwan Kim

    IPC分类号: H05K1/02 H05K3/44

    摘要: Some novel features pertain to a substrate that includes a first core layer, a second core layer laterally located to the first core layer in the substrate, a first inorganic core layer (e.g., glass, silicon, ceramic) laterally positioned between the first core layer and the second core layer, the first inorganic core layer configured to be vertically aligned with a die configured to be coupled to the substrate, and a dielectric layer covering the first core layer, the second core layer and the first inorganic core layer. In some implementations, the first inorganic core layer has a first coefficient of thermal expansion (CTE), the die has a second coefficient of thermal expansion, and the first core layer has a third coefficient of thermal expansion (CTE). The first CTE of the first inorganic core layer closely matches the second CTE of the die in order to reduce the likelihood of warpage.

    摘要翻译: 一些新颖特征涉及一种衬底,其包括第一芯层,横向位于衬底中的第一芯层的第二芯层,侧向位于第一芯层之间的第一无机芯层(例如,玻璃,硅,陶瓷) 和第二芯层,被配置为与被配置为耦合到基板的管芯垂直对准的第一无机芯层,以及覆盖第一芯层,第二芯层和第一无机芯层的电介质层。 在一些实施方案中,第一无机核心层具有第一热膨胀系数(CTE),所述管芯具有第二热膨胀系数,并且所述第一核心层具有第三热膨胀系数(CTE)。 第一无机芯层的第一CTE与模具的第二CTE紧密匹配,以减少翘曲的可能性。