Method for an improved air gap interconnect structure
    72.
    发明申请
    Method for an improved air gap interconnect structure 有权
    改进气隙互连结构的方法

    公开(公告)号:US20080044999A1

    公开(公告)日:2008-02-21

    申请号:US11893870

    申请日:2007-08-15

    IPC分类号: H01L21/4763

    摘要: In one embodiment, an apparatus comprises a first layer having at least one interconnect formed in an interlayer dielectric (ILD), a second layer formed over the first layer having a second at least one interconnect, a third layer formed over the second layer, the third layer defining at least one air gap between the second at least one interconnect and the third layer, and at least one shunt selectively covering the first and second at least one interconnects. In another embodiment, a method comprises forming a first layer comprising an ILD and a first at least one interconnect, forming a second layer over the first layer, the second layer having a second at least one interconnect, depositing at least one shunt over the first and second at least one interconnects, forming a third layer over the second layer, and evaporating a portion of the second layer to create at least one air gap between the second at least one interconnect and the third layer.

    摘要翻译: 在一个实施例中,一种装置包括具有在层间电介质(ILD)中形成的至少一个互连的第一层,在第一层上形成的具有第二至少一个互连的第二层,在第二层上形成的第三层, 第三层限定第二至少一个互连和第三层之间的至少一个空气间隙,以及至少一个分流器,其选择性地覆盖第一和第二至少一个互连。 在另一个实施例中,一种方法包括形成包括ILD和第一至少一个互连的第一层,在第一层上形成第二层,第二层具有第二至少一个互连,在第一层上沉积至少一个分流 以及第二至少一个互连,在所述第二层上形成第三层,以及蒸发所述第二层的一部分以在所述第二至少一个互连和所述第三层之间产生至少一个空气间隙。

    Multiple stage electroless deposition of a metal layer
    78.
    发明申请
    Multiple stage electroless deposition of a metal layer 有权
    金属层的多级无电沉积

    公开(公告)号:US20050260339A1

    公开(公告)日:2005-11-24

    申请号:US11192761

    申请日:2005-07-29

    摘要: A multiple stage method of electrolessly depositing a metal layer is presented. This method may have the two main stages of first forming a thin metal layer on a metal surface using an electroless plating solution containing activating agents that are highly reactive reducing agents, and second, forming a bulk metal layer over the thin metal layer by using an electroless plating solution containing mildly reactive reducing agents. Through this two stage method, the use of highly reactive reducing agents that may cause the formation of contaminant particles may be minimized. By minimizing the formation of contaminant particles in the electroless plating solution, the lifetime of the solution may be extended and the current leakage between metal interconnect lines may be reduced.

    摘要翻译: 提出了一种无电沉积金属层的多级方法。 该方法可以具有以下两个主要阶段:首先使用含有作为高反应性还原剂的活化剂的化学镀溶液在金属表面上形成薄金属层,其次,在金属薄层上通过使用 含有轻度反应性还原剂的化学镀溶液。 通过这种两阶段方法,可以使可能引起污染物颗粒形成的高反应性还原剂的使用最小化。 通过最小化化学镀溶液中的污染物颗粒的形成,可以延长溶液的寿命,并且可以减少金属互连线之间的电流泄漏。