METHOD TO INCREASE SILICON NITRIDE TENSILE STRESS USING NITROGEN PLASMA IN-SITU TREATMENT AND EX-SITU UV CURE
    34.
    发明申请
    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:US20080020591A1

    公开(公告)日:2008-01-24

    申请号:US11762590

    申请日:2007-06-13

    IPC分类号: H01L21/31

    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 improve the step coverage and pattern loading for dielectric films
    36.
    发明授权
    Method to improve the step coverage and pattern loading for dielectric films 失效
    改善介电薄膜阶梯覆盖和图案加载的方法

    公开(公告)号:US07780865B2

    公开(公告)日:2010-08-24

    申请号:US11693005

    申请日:2007-03-29

    IPC分类号: C03C15/00

    摘要: Methods of controlling the step coverage and pattern loading of a layer on a substrate are provided. The dielectric layer may be a silicon nitride, silicon oxide, or silicon oxynitride layer. The method comprises depositing a dielectric layer on a substrate having at least one formed feature across a surface of the substrate and etching the dielectric layer with a plasma from oxygen or a halogen-containing gas to provide a desired profile of the dielectric layer on the at least one formed feature. The deposition of the dielectric layer and the etching of the dielectric layer may be repeated for multiple cycles to provide the desired profile of the dielectric layer.

    摘要翻译: 提供了控制衬底上的层的阶梯覆盖和图案加载的方法。 电介质层可以是氮化硅,氧化硅或氮氧化硅层。 该方法包括在衬底上沉积介电层,该衬底具有穿过衬底的表面的至少一个形成的特征,并用等离子体从氧气或含卤素气体蚀刻介电层,以在该位置上提供介电层的理想轮廓 至少一个形成的特征。 介电层的沉积和电介质层的蚀刻可以重复多个周期以提供所需的电介质层的轮廓。

    METHOD TO IMPROVE THE STEP COVERAGE AND PATTERN LOADING FOR DIELECTRIC FILMS
    38.
    发明申请
    METHOD TO IMPROVE THE STEP COVERAGE AND PATTERN LOADING FOR DIELECTRIC FILMS 失效
    用于改进电介质膜的步骤覆盖和图案加载的方法

    公开(公告)号:US20070232071A1

    公开(公告)日:2007-10-04

    申请号:US11693005

    申请日:2007-03-29

    IPC分类号: H01L21/465

    摘要: Methods of controlling the step coverage and pattern loading of a layer on a substrate are provided. The dielectric layer may be a silicon nitride, silicon oxide, or silicon oxynitride layer. The method comprises depositing a dielectric layer on a substrate having at least one formed feature across a surface of the substrate and etching the dielectric layer with a plasma from oxygen or a halogen-containing gas to provide a desired profile of the dielectric layer on the at least one formed feature. The deposition of the dielectric layer and the etching of the dielectric layer may be repeated for multiple cycles to provide the desired profile of the dielectric layer.

    摘要翻译: 提供了控制衬底上的层的阶梯覆盖和图案加载的方法。 电介质层可以是氮化硅,氧化硅或氮氧化硅层。 该方法包括在衬底上沉积介电层,该衬底具有穿过衬底的表面的至少一个形成的特征,并用等离子体从氧气或含卤素气体蚀刻介电层,以在该位置上提供介电层的理想轮廓 至少一个形成的特征。 介电层的沉积和电介质层的蚀刻可以重复多个周期以提供所需的电介质层的轮廓。

    Boron diffusion barrier by nitrogen incorporation in spacer dielectrics
    39.
    发明授权
    Boron diffusion barrier by nitrogen incorporation in spacer dielectrics 失效
    通过在间隔电介质中掺入氮的硼扩散势垒

    公开(公告)号:US07132353B1

    公开(公告)日:2006-11-07

    申请号:US11195398

    申请日:2005-08-02

    IPC分类号: H01L21/3205

    摘要: A method of forming a sidewall spacer on a gate electrode is described. The method includes generating a first plasma from a silicon containing precursor and oxide precursor, and forming a silicon oxy-nitride layer on the sidewall of the gate electrode. The method also includes generating a second plasma from the silicon containing precursor and a nitrogen precursor, and forming a nitride layer on the silicon oxy-nitride layer. The silicon containing precursor can flow continuously between the generation of the first and the second plasmas. Also, a method of forming a sidewall spacer on the side of a gate electrode on a substrate. The method includes forming an oxy-nitride layer on the sidewall, and forming a nitride layer on the oxy-nitride layer, where the substrate wafer is not exposed to air between the formation of the layers.

    摘要翻译: 描述了在栅极上形成侧壁间隔物的方法。 该方法包括从含硅前体和氧化物前体产生第一等离子体,并在栅电极的侧壁上形成氮氧化硅层。 该方法还包括从含硅前体和氮前体产生第二等离子体,并在氮氧化硅层上形成氮化物层。 含硅前体可以在第一和第二等离子体的产生之间连续流动。 另外,在基板上的栅电极侧形成侧墙的方法。 该方法包括在侧壁上形成氮氧化物层,并且在氧化氮化物层上形成氮化物层,其中衬底晶片在层的形成之间不暴露于空气。