COMPLIANT PASSIVATED EDGE SEAL FOR LOW-K INTERCONNECT STRUCTURES
    6.
    发明申请
    COMPLIANT PASSIVATED EDGE SEAL FOR LOW-K INTERCONNECT STRUCTURES 审中-公开
    适用于低K互连结构的合适封闭边缘密封

    公开(公告)号:WO2005067598A3

    公开(公告)日:2006-11-23

    申请号:PCT/US2005000289

    申请日:2005-01-06

    Abstract: A structure for a chip (11) or chip package is disclosed, with final passivation (17) and terminal metallurgy which are mechanically decoupled but electrically coupled to the multilayer on-chip interconnects. This decoupling allows the chip to survive packaging stresses in the final passivation region, with strain relief from the decoupling region and compliant leads (14) therein, so that on-chip interconnect levels do not feel these external packaging or other stresses. This structure is particularly preferred for on-chip interconnects consisting of Cu and low-k dielectric, the latter having inferior mechanical properties relative to Si0 2 . The decoupled region extends over all chips on the wafer. It may also extend into the edgeseal or dicing channel region so as to allow chip dicing and retention of this mechanical decoupling all around every chip on the wafer.

    Abstract translation: 公开了一种用于芯片(11)或芯片封装的结构,其中最终钝化(17)和终端冶金机械地去耦合但电耦合到多层片上互连。 该去耦允许芯片在最终钝化区域中经受包装应力,其中去耦区域和柔性引线(14)的应变消除,使得片上互连电平不会感受到这些外部封装或其它应力。 这种结构对于由Cu和低k电介质组成的片上互连是特别优选的,后者相对于Si 2 O 2具有较差的机械性能。 去耦区延伸在晶片上的所有芯片上。 它还可以延伸到edgeseal或切割通道区域,以便允许在晶片上的每个芯片周围的这种机械去耦的芯片切割和保持。

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