Deposition of tungsten nitride
    3.
    发明授权
    Deposition of tungsten nitride 有权
    沉积氮化钨

    公开(公告)号:US07005372B2

    公开(公告)日:2006-02-28

    申请号:US10690492

    申请日:2003-10-20

    IPC分类号: H01L21/4763

    摘要: Methods for depositing a tungsten nitride layer are described. The methods form a tungsten nitride layer using a carefully controlled deposition technique such as pulsed nucleation layer (PNL). Initially, a tungsten layer is formed on a substrate surface. The tungsten layer is then exposed to a nitriding agent to form a tungsten nitride layer. Methods of forming relatively thick layers of involve repeated cycles of contact with reducing agent, tungsten precursor and nitriding agent. In some cases, the cycle may also include contact with a dopant precursor such as phosphine or arsine.

    摘要翻译: 描述了用于沉积氮化钨层的方法。 该方法使用精心控制的沉积技术如脉冲成核层(PNL)形成氮化钨层。 最初,在衬底表面上形成钨层。 然后将钨层暴露于氮化剂以形成氮化钨层。 形成相对较厚层的方法涉及与还原剂钨前体和氮化剂接触的重复循环。 在一些情况下,该循环还可以包括与诸如膦或胂的掺杂剂前体接触。

    Deposition of tungsten nitride
    4.
    发明授权
    Deposition of tungsten nitride 有权
    沉积氮化钨

    公开(公告)号:US07691749B2

    公开(公告)日:2010-04-06

    申请号:US11305368

    申请日:2005-12-16

    IPC分类号: H01L21/44

    摘要: Methods for depositing a tungsten nitride layer are described. The methods form a tungsten nitride layer using a carefully controlled deposition technique such as pulsed nucleation layer (PNL). Initially, a tungsten layer is formed on a substrate surface. The tungsten layer is then exposed to a nitriding agent to form a tungsten nitride layer. Methods of forming relatively thick layers of involve repeated cycles of contact with reducing agent, tungsten precursor and nitriding agent. In some cases, the cycle may also include contact with a dopant precursor such as phosphine or arsine.

    摘要翻译: 描述了用于沉积氮化钨层的方法。 该方法使用精心控制的沉积技术如脉冲成核层(PNL)形成氮化钨层。 最初,在衬底表面上形成钨层。 然后将钨层暴露于氮化剂以形成氮化钨层。 形成相对较厚层的方法涉及与还原剂钨前体和氮化剂接触的重复循环。 在一些情况下,该循环还可以包括与诸如膦或胂的掺杂剂前体接触。

    Control of erosion profile and process characteristics in magnetron sputtering by geometrical shaping of the sputtering target
    9.
    发明授权
    Control of erosion profile and process characteristics in magnetron sputtering by geometrical shaping of the sputtering target 失效
    通过溅射靶的几何成形来控制磁控溅射中的侵蚀特征和工艺特性

    公开(公告)号:US06500321B1

    公开(公告)日:2002-12-31

    申请号:US09519429

    申请日:2000-03-02

    IPC分类号: C23C1435

    摘要: An apparatus and method for controlling and optimizing a non-planar target shape of a sputtering magnetron system are employed to minimize the redeposition of the sputtered material and optimize target erosion. The methodology is based on the integration of sputtered material from each point of the target according to its solid angle view of the rest of the target. The prospective target's geometry is optimized by analytically comparing and evaluating the methodology's results of one target geometry against that of another geometry, or by simply altering the first geometry and recalculating and comparing the results of the first geometry against the altered geometry. The target geometries may be of many different shapes including trapezoidal, cylindrical, parabolic, and elliptical, depending upon the optimum process parameters desired. A sputtering system is developed using this methodology, having a main magnet stack, a rotating magnet, a target having selected target shapes optimized for controlling erosion, downstream magnets, a substrate, and an electric field induced plasma stream.

    摘要翻译: 采用用于控制和优化溅射磁控管系统的非平面目标形状的装置和方法来最小化溅射材料的再沉积并优化目标侵蚀。 该方法基于从目标的每个点的溅射材料的整合,根据其目标的其余部分的立体角度视图。 通过分析比较和评估一种目标几何体的结果与另一种几何结构的方法的结果,或简单地改变第一几何并重新计算并比较第一几何的结果与改变的几何结构,来优化预期目标的几何形状。 取决于所需的最佳工艺参数,目标几何形状可以是许多不同的形状,包括梯形,圆柱形,抛物线形和椭圆形。 使用该方法开发溅射系统,其具有主磁体堆叠,旋转磁体,具有针对控制侵蚀优化的所选目标形状的目标,下游磁体,基板和电场感应等离子体流。