Diffusion barrier for damascene structures
    2.
    发明申请
    Diffusion barrier for damascene structures 审中-公开
    镶嵌结构的扩散屏障

    公开(公告)号:US20060099802A1

    公开(公告)日:2006-05-11

    申请号:US10985149

    申请日:2004-11-10

    CPC classification number: H01L21/76814 H01L21/76826 H01L21/76831

    Abstract: A semiconductor structure having a via formed in a dielectric layer is provided. The exposed pores of the dielectric material along the sidewalls of the via are partially or completely sealed. Thereafter, one or more barrier layers may be formed and the via may be filled with a conductive material. The barrier layers formed over the sealing layer exhibits a more continuous barrier layer. The pores may be partially or completely sealed by performing, for example, a plasma process in an argon environment.

    Abstract translation: 提供了具有形成在电介质层中的通孔的半导体结构。 沿着通孔的侧壁的电介质材料的暴露的孔部分或完全密封。 此后,可以形成一个或多个阻挡层,并且可以用导电材料填充通孔。 形成在密封层之上的阻挡层表现出更连续的阻挡层。 通过在氩气环境中进行例如等离子体处理,可以将孔部分或完全密封。

    Barrier structure for semiconductor devices
    3.
    发明申请
    Barrier structure for semiconductor devices 审中-公开
    半导体器件的阻挡结构

    公开(公告)号:US20050266679A1

    公开(公告)日:2005-12-01

    申请号:US10995752

    申请日:2004-11-23

    Abstract: A via having a unique barrier layer structure is provided. In an embodiment, a via is formed by forming a barrier layer in a via. The barrier layer along the bottom of the via is partially or completely removed, and the via is filled with a conductive material. In another embodiment, a first barrier layer is formed along the bottom and sidewalls of the via. Thereafter, the first barrier layer along the bottom of the via is partially or completely removed, and a second barrier layer is formed.

    Abstract translation: 提供具有独特的阻挡层结构的通孔。 在一个实施例中,通孔在通孔中形成阻挡层而形成通孔。 沿着通孔底部的阻挡层被部分地或完全去除,并且通孔用导电材料填充。 在另一个实施例中,沿着通孔的底部和侧壁形成第一阻挡层。 此后,沿通孔底部的第一阻挡层被部分地或完全地去除,形成第二阻挡层。

    Adhesion of copper and etch stop layer for copper alloy
    7.
    发明授权
    Adhesion of copper and etch stop layer for copper alloy 有权
    铜合金的附着力和蚀刻停止层

    公开(公告)号:US07443029B2

    公开(公告)日:2008-10-28

    申请号:US11201845

    申请日:2005-08-11

    Abstract: A new method and structure is provided for the creation of a copper dual damascene interconnect. A dual damascene structure is created in the layer of dielectric, optionally a metal barrier layer is deposited over exposed surfaces of the dual damascene structure. A copper seed layer is deposited, the dual damascene structure is filled with copper. An anneal is applied to the created copper interconnect after which excess copper is removed from the dielectric. Of critical importance to the invention, a thin layer of oxide is then deposited as a cap layer over the copper dual damascene interconnect, an etch stop layer is then deposited over the thin layer of oxide for continued upper-level metallization.

    Abstract translation: 提供了一种新的方法和结构,用于创建铜双镶嵌互连。 在电介质层中产生双镶嵌结构,任选地,金属阻挡层沉积在双镶嵌结构的暴露表面上。 沉积铜籽晶层,双镶嵌结构填充铜。 对所制造的铜互连进行退火,之后从电介质去除多余的铜。 对本发明至关重要的是,然后在铜双镶嵌互连件上沉积薄层的氧化物作为覆盖层,然后将蚀刻停止层沉积在氧化物薄层上用于持续的上层金属化。

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