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    Techniques promoting adhesion of porous low K film to underlying barrier layer
    3.
    发明申请
    Techniques promoting adhesion of porous low K film to underlying barrier layer 有权
    促进多孔低K膜粘附到底层阻挡层的技术

    公开(公告)号：US20050233591A1

    公开(公告)日：2005-10-20

    申请号：US11046090

    申请日：2005-01-28

    申请人： Francimar Schmitt ,  Alexandros Demos ,  Derek Witty ,  Hichem M'Sadd ,  Sang Ahn ,  Lester D'Cruz ,  Khaled Elsheref ,  Zhenjiang Cui

    发明人： Francimar Schmitt ,  Alexandros Demos ,  Derek Witty ,  Hichem M'Sadd ,  Sang Ahn ,  Lester D'Cruz ,  Khaled Elsheref ,  Zhenjiang Cui

    IPC分类号： B44C1/22 ,  C23C16/40 ,  C23C16/56 ,  H01L21/302 ,  H01L21/3105 ,  H01L21/316 ,  H01L21/768

    CPC分类号： H01L21/31633 ,  C23C16/401 ,  C23C16/56 ,  H01L21/02126 ,  H01L21/02203 ,  H01L21/02274 ,  H01L21/02304 ,  H01L21/02351 ,  H01L21/02362 ,  H01L21/31058 ,  H01L21/31695 ,  H01L21/76801 ,  H01L21/76811 ,  H01L21/76813 ,  H01L21/7682 ,  H01L21/76825 ,  H01L21/76828 ,  H01L21/76832 ,  H01L2221/1047

    摘要： Adhesion of a porous low K film to an underlying barrier layer is improved by forming an intermediate layer lower in carbon content, and richer in silicon oxide, than the overlying porous low K film. This adhesion layer can be formed utilizing one of a number of techniques, alone or in combination. In one approach, the adhesion layer can be formed by introduction of a rich oxidizing gas such as O2/CO2/etc. to oxidize Si precursors immediately prior to deposition of the low K material. In another approach, thermally labile chemicals such as alpha-terpinene, cymene, and any other non-oxygen containing organics are removed prior to low K film deposition. In yet another approach, the hardware or processing parameters, such as the manner of introduction of the non-silicon containing component, may be modified to enable formation of an oxide interface prior to low K film deposition. In still another approach, parameters of ebeam treatment such as dosage, energy, or the use of thermal annealing, may be controlled to remove carbon species at the interface between the barrier and the low K film. In a further approach, a pre-treatment plasma may be introduced prior to low k deposition to enhance heating of the barrier interface, such that a thin oxide interface is formed when low K deposition gases are introduced and the low K film is deposited.

    摘要翻译： 通过与上覆的多孔低K膜形成碳含量较低的中间层和富含氧化硅的多孔低K膜与下面的阻挡层的粘附性得到改善。 可以利用单独或组合的多种技术之一形成该粘合层。 在一种方法中，粘合层可以通过引入富氧化气体如O 2 / CO 2/2等形成。 以在沉积低K材料之前立即氧化Si前体。 在另一种方法中，在低K膜沉积之前，除去热不稳定化学品如α-萜品烯，伞花烃和任何其它不含氧的有机物。 在另一种方法中，可以修改硬件或处理参数，例如引入非硅含量组分的方式，以使得能够在低K膜沉积之前形成氧化物界面。 在另一种方法中，可以控制ebeam处理的参数，例如剂量，能量或使用热退火，以去除阻挡层和低K膜之间的界面处的碳物质。 在另一种方法中，可以在低k沉积之前引入预处理等离子体以增强阻挡界面的加热，使得当引入低K沉积气体并沉积低K膜时，形成薄氧化物界面。

    METHOD TO INCREASE SILICON NITRIDE TENSILE STRESS USING NITROGEN PLASMA IN-SITU TREATMENT AND EX-SITU UV CURE
    7.
    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

    申请人： Mihaela Balseanu ,  Victor Nguyen ,  Li-Qun Xia ,  Derek Witty ,  Hichem M'Saad ,  Mei-Yee Shek ,  Isabelita Roflox

    发明人： Mihaela Balseanu ,  Victor Nguyen ,  Li-Qun Xia ,  Derek Witty ,  Hichem M'Saad ,  Mei-Yee Shek ,  Isabelita Roflox

    IPC分类号： H01L21/31

    CPC分类号： H01L21/3105 ,  C23C16/345 ,  C23C16/56 ,  H01L21/31111 ,  H01L21/31116 ,  H01L21/3185 ,  H01L21/823807 ,  H01L29/66583 ,  H01L29/7843

    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。