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热词
    • 1. 发明授权
    • High density thermal solution for direct attach modules
    • 用于直接连接模块的高密度热解决方案
    • US06657864B1
    • 2003-12-02
    • US10320845
    • 2002-12-16
    • Warren D. DyckmanEdward R. PillaiJeffrey A. Zitz
    • Warren D. DyckmanEdward R. PillaiJeffrey A. Zitz
    • H05K720
    • H01L23/3675H01L23/3677H01L2224/16225H01L2224/32245H01L2224/73253H01L2924/09701H01L2924/1305H01L2924/15311H01L2924/16152H01L2924/3025H01L2924/00
    • A high power density thermal packaging solution. A highly efficient thermal path is provided using a lid of a unique design configuration that connects the chip back-side to both a heat sink and thermally conductive substrate vias thus establishing two thermal paths to carry heat from the die. The thermal interface between the chip back-side to lid and lid-to-substrate is enhanced with a thermally conductive elastomer. The heat is conducted through the substrate through thermal vias that are added to the perimeter of the substrate or which may be configured from preexisting electrical shielding structures that connect the top surface of the substrate to the bottom of the package. The bottom surface connection then conducts the heat to a copper ground plane in the printed circuit card. The heat from the die to the heat sink is transferred in the conventional method using the thin layer of thermally conductive elastomer to complete the thermal path from chip to lid to heat sink.
    • 高功率密度热封装解决方案。 使用独特设计结构的盖子提供了高效的热路径,该盖子将芯片背面连接到散热片和导热基板通孔,从而建立两个热路径以从模具携带热量。 利用导热弹性体,芯片后侧与盖与盖到基板之间的热界面得到增强。 加热通过加热通孔的热通道穿过衬底,该通孔可以加到衬底的周边上,或者可以由将衬底的顶表面连接到封装的底部的预先存在的电屏蔽结构构成。 底面连接然后将热量传导到印刷电路卡中的铜接地平面。 使用导热弹性体薄层,以常规方法转移从模具到散热器的热量,以完成从芯片到盖子到散热片的热路径。