Copper oxide removal techniques
    5.
    发明授权
    Copper oxide removal techniques 有权
    氧化铜去除技术

    公开(公告)号:US08758638B2

    公开(公告)日:2014-06-24

    申请号:US13104314

    申请日:2011-05-10

    IPC分类号: H01L21/3065 H01L21/302

    CPC分类号: H01L21/02074 H01L21/76883

    摘要: A method for the removal of copper oxide from a copper and dielectric containing structure of a semiconductor chip is provided. The copper and dielectric containing structure may be planarized by chemical mechanical planarization (CMP) and treated by the method to remove copper oxide and CMP residues. Annealing in a hydrogen (H2) gas and ultraviolet (UV) environment removes copper oxide, and a pulsed ammonia plasma removes CMP residues.

    摘要翻译: 提供了一种从铜中除去氧化铜和包含半导体芯片的结构的方法。 可以通过化学机械平面化(CMP)对包含铜和电介质的结构进行平面化,并通过除去氧化铜和CMP残留物的方法进行处理。 在氢(H2)气体和紫外线(UV)环境中退火除去氧化铜,脉冲氨等离子体去除CMP残留物。

    COPPER OXIDE REMOVAL TECHNIQUES
    6.
    发明申请
    COPPER OXIDE REMOVAL TECHNIQUES 有权
    铜氧化物去除技术

    公开(公告)号:US20120289049A1

    公开(公告)日:2012-11-15

    申请号:US13104314

    申请日:2011-05-10

    IPC分类号: H01L21/3065 H01L21/302

    CPC分类号: H01L21/02074 H01L21/76883

    摘要: A method for the removal of copper oxide from a copper and dielectric containing structure of a semiconductor chip is provided. The copper and dielectric containing structure may be planarized by chemical mechanical planarization (CMP) and treated by the method to remove copper oxide and CMP residues. Annealing in a hydrogen (H2) gas and ultraviolet (UV) environment removes copper oxide, and a pulsed ammonia plasma removes CMP residues.

    摘要翻译: 提供了一种从铜中除去氧化铜和包含半导体芯片的结构的方法。 可以通过化学机械平面化(CMP)对包含铜和电介质的结构进行平面化,并通过除去氧化铜和CMP残留物的方法进行处理。 在氢(H2)气体和紫外线(UV)环境中退火除去氧化铜,脉冲氨等离子体去除CMP残留物。

    Method to increase silicon nitride tensile stress using nitrogen plasma in-situ treatment and ex-situ UV cure
    7.
    发明授权
    Method to increase silicon nitride tensile stress using nitrogen plasma in-situ treatment and ex-situ UV cure 有权
    使用氮等离子体原位处理和非原位UV固化来增加氮化硅拉伸应力的方法

    公开(公告)号:US08138104B2

    公开(公告)日:2012-03-20

    申请号:US11762590

    申请日:2007-06-13

    IPC分类号: H01L21/469

    摘要: Stress of a silicon nitride layer may be enhanced by deposition at higher temperatures. Employing an apparatus that allows heating of a substrate to substantially greater than 400° C. (for example a heater made from ceramic rather than aluminum), the silicon nitride film as-deposited may exhibit enhanced stress allowing for improved performance of the underlying MOS transistor device. In accordance with alternative embodiments, a deposited silicon nitride film is exposed to curing with ultraviolet (UV) radiation at an elevated temperature, thereby helping remove hydrogen from the film and increasing film stress. In accordance with still other embodiments, a silicon nitride film is formed utilizing an integrated process employing a number of deposition/curing cycles to preserve integrity of the film at the sharp corner of the underlying raised feature. Adhesion between successive layers may be promoted by inclusion of a post-UV cure plasma treatment in each cycle.

    摘要翻译: 氮化硅层的应力可以通过在较高温度下沉积来增强。 使用允许将衬底加热到​​基本上大于400℃的装置(例如由陶瓷而不是铝制成的加热器),沉积的氮化硅膜可能表现出增强的应力,从而可以改善下面的MOS晶体管的性能 设备。 根据替代实施例,沉积的氮化硅膜在升高的温度下暴露于紫外线(UV)辐射固化,从而有助于从膜中除去氢并增加膜应力。 根据其他实施例,使用采用多个沉积/固化周期的整合方法形成氮化硅膜,以保持薄膜在底层凸起特征的尖角处的完整性。 可以通过在每个循环中包括UV后固化等离子体处理来促进连续层之间的粘附。

    METHOD TO INCREASE SILICON NITRIDE TENSILE STRESS USING NITROGEN PLASMA IN-SITU TREATMENT AND EX-SITU UV CURE
    8.
    发明申请
    METHOD TO INCREASE SILICON NITRIDE TENSILE STRESS USING NITROGEN PLASMA IN-SITU TREATMENT AND EX-SITU UV CURE 审中-公开
    使用氮等离子体原位处理和超临界紫外线固化法增加氮化硅拉伸应力的方法

    公开(公告)号:US20120196450A1

    公开(公告)日:2012-08-02

    申请号:US13365226

    申请日:2012-02-02

    摘要: Stress of a silicon nitride layer may be enhanced by deposition at higher temperatures. Employing an apparatus that allows heating of a substrate to substantially greater than 400° C. (for example a heater made from ceramic rather than aluminum), the silicon nitride film as-deposited may exhibit enhanced stress allowing for improved performance of the underlying MOS transistor device. In accordance with some embodiments, a deposited silicon nitride film is exposed to curing with plasma and ultraviolet (UV) radiation, thereby helping remove hydrogen from the film and increasing film stress. In accordance with other embodiments, a silicon nitride film is formed utilizing an integrated process employing a number of deposition/curing cycles to preserve integrity of the film at the sharp corner of the underlying raised feature. Adhesion between successive layers may be promoted by inclusion of a post-UV cure plasma treatment in each cycle.

    摘要翻译: 氮化硅层的应力可以通过在较高温度下沉积来增强。 使用允许将衬底加热到​​基本上大于400℃的装置(例如由陶瓷而不是铝制成的加热器),沉积的氮化硅膜可能表现出增强的应力,从而可以改善下面的MOS晶体管的性能 设备。 根据一些实施例,沉积的氮化硅膜暴露于等离子体和紫外(UV)辐射的固化,从而有助于从膜中除去氢并增加膜应力。 根据其他实施例,使用采用多个沉积/固化循环的整合方法形成氮化硅膜,以在底层凸起特征的尖角处保留膜的完整性。 可以通过在每个循环中包括UV后固化等离子体处理来促进连续层之间的粘附。

    MODULATED COMPOSITIONAL AND STRESS CONTROLLED MULTILAYER ULTRATHIN CONFORMAL SiNx DIELECTRICS USED IN NANO DEVICE FABRICATION
    10.
    发明申请
    MODULATED COMPOSITIONAL AND STRESS CONTROLLED MULTILAYER ULTRATHIN CONFORMAL SiNx DIELECTRICS USED IN NANO DEVICE FABRICATION 审中-公开
    在纳米器件制造中使用的调制组合和应力控制的多层超大规模SiNx电介质

    公开(公告)号:US20130333923A1

    公开(公告)日:2013-12-19

    申请号:US13495545

    申请日:2012-06-13

    IPC分类号: C23C16/34 H05K1/02

    摘要: A layer of silicon nitride having a thickness from 0.5 nanometers to 2.4 nanometers is deposited on a substrate. A plasma nitridation process is carried out on the layer. These steps are repeated for a plurality of additional layers of silicon nitride, until a predetermined thickness is attained. Such steps can be used to provide a multilayer silicon nitride dielectric formed on a substrate having an upper surface of dielectric material with Cu and other conductors embedded within, and a plurality of steps. The multilayer silicon nitride dielectric has a plurality of individual layers each having a thickness from 0.5 nanometers to 2.4 nanometers, and the multilayer silicon nitride dielectric conformally covers the steps of the substrate with a conformality of at least seventy percent. A multilayer silicon nitride dielectric, and a multilevel back end of line interconnect wiring structure using same, are also provided.

    摘要翻译: 将厚度为0.5纳米至2.4纳米的氮化硅层沉积在基底上。 在层上进行等离子体氮化处理。 对于多个附加氮化硅层重复这些步骤,直到达到预定厚度。 可以使用这样的步骤来提供形成在具有介电材料的上表面的衬底上的多层氮化硅电介质,其中Cu和其它导体嵌入其中并且多个步骤。 多层氮化硅电介质具有各自具有0.5纳米至2.4纳米厚度的多个单独层,多层氮化硅电介质保形地覆盖具有至少百分之七十的保形度的基底的步骤。 还提供了多层氮化硅电介质,以及使用该多层氮化硅电介质的多层后端的布线结构。