Barrier metal re-distribution process for resistivity reduction
    84.
    发明授权
    Barrier metal re-distribution process for resistivity reduction 失效
    阻隔金属重新分配过程的电阻率降低

    公开(公告)号:US07071095B2

    公开(公告)日:2006-07-04

    申请号:US10850763

    申请日:2004-05-20

    IPC分类号: H01L21/4763

    摘要: A novel process for re-distributing a barrier layer deposited on a single damascene, dual damascene or other contact opening structure. The process includes providing a substrate having a contact opening structure and a metal barrier layer deposited in the contact opening structure, re-sputtering the barrier layer by bombarding the barrier layer with argon ions and metal ions, and re-sputtering the barrier layer by bombarding the barrier layer with argon ions.

    摘要翻译: 一种用于重新分布沉积在单个镶嵌,双镶嵌或其他接触开口结构上的阻挡层的新方法。 该方法包括提供具有接触开口结构的衬底和沉积在接触开口结构中的金属阻挡层,通过用氩离子和金属离子轰击阻挡层来重新溅射阻挡层,并通过轰击来重新溅射阻挡层 阻挡层具有氩离子。

    Diffusion barrier for damascene structures
    85.
    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

    IPC分类号: H01L21/4763

    摘要: 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.

    摘要翻译: 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
    87.
    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

    摘要: 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.

    摘要翻译: 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。

    Method for high kinetic energy plasma barrier deposition
    89.
    发明授权
    Method for high kinetic energy plasma barrier deposition 有权
    高动能等离子体屏障沉积方法

    公开(公告)号:US06949472B1

    公开(公告)日:2005-09-27

    申请号:US10838720

    申请日:2004-05-03

    摘要: A novel method for depositing a barrier layer on a single damascene, dual damascene or other contact opening structure. The method eliminates the need for pre-cleaning argon ion bombardment of the structure, thereby reducing or eliminating damage to the surface of the underlying conductive layer and sputtering of copper particles to the via or other contact opening sidewall. The process includes fabrication of a single damascene, dual damascene or other contact opening structure on a substrate; optionally pre-cleaning the structure typically using nitrogen or hydrogen plasma; depositing a thin metal barrier layer on the sidewalls and bottom of the structure; and redistributing or re-sputtering the barrier layer on the bottom and sidewalls of the structure.

    摘要翻译: 一种用于在单个镶嵌,双镶嵌或其他接触开口结构上沉积阻挡层的新方法。 该方法消除了对结构的氩离子轰击的预清洁的需要,从而减少或消除了下面的导电层的表面的损伤和铜颗粒溅射到通孔或其他接触开口侧壁。 该方法包括在基底上制造单个镶嵌,双镶嵌或其它接触开口结构; 可以任选地预先使用氮或氢等离子体对结构进行预清洗; 在结构的侧壁和底部上沉积薄金属阻挡层; 并且在结构的底部和侧壁上重新分布或重新溅射阻挡层。

    Planarization of copper damascene using reverse current electroplating and chemical mechanical polishing
    90.
    发明授权
    Planarization of copper damascene using reverse current electroplating and chemical mechanical polishing 有权
    使用反电流电镀和化学机械抛光对铜镶嵌进行平面化

    公开(公告)号:US06815336B1

    公开(公告)日:2004-11-09

    申请号:US09160965

    申请日:1998-09-25

    IPC分类号: H01L214763

    摘要: Methods are disclosed to improve the planarization of copper damascene by the steps of patterning on the copper damascene a photoresist using a reverse tone photo mask or a reverse tone photo mask of the metal lines, removing excess copper by reverse current plating or by dry or wet chemical etching, stripping the photo resist, and a subsequent chemical mechanical planarization of the copper damascene. Lastly a cap layer is applied to the planarized surface. In a variant of the disclosed method a more relaxed reverse tone photo mask of the metal lines is used, which may be more desirable for practical use. These steps provide benefits such as improved uniformity of the wafer surface, reduce the dishing of metal lines (trenches) and pads, and reduce oxide erosion.

    摘要翻译: 公开了通过以下步骤来改善铜镶嵌的平面化的步骤:使用反色调光掩模或金属线的反色调光掩模在铜镶嵌光致抗蚀剂上进行图案化,通过反向电镀或通过干或湿去除多余的铜 化学蚀刻,剥离光致抗蚀剂,以及铜镶嵌件的随后的化学机械平面化。 最后,将覆盖层施加到平坦化表面。 在所公开的方法的变型中,使用金属线的更宽松的反向色调光掩模,这对于实际使用可能是更理想的。 这些步骤提供了诸如改善晶片表面的均匀性,减少金属线(沟槽)和焊盘的凹陷以及减少氧化物侵蚀的益处。