ANISOTROPIC GAP ETCH
    5.
    发明申请
    ANISOTROPIC GAP ETCH 有权
    各向异性斑块

    公开(公告)号:US20160181112A1

    公开(公告)日:2016-06-23

    申请号:US14581332

    申请日:2014-12-23

    Abstract: A method of anisotropically dry-etching exposed substrate material on a patterned substrate is described. The patterned substrate has a gap formed in a single material made from, for example, a silicon-containing material or a metal-containing material. The method includes directionally ion-implanting the patterned structure to implant the bottom of the gap without implanting substantially the walls of the gap. Subsequently, a remote plasma is formed using a fluorine-containing precursor to etch the patterned substrate such that either (1) the walls are selectively etched relative to the floor of the gap, or (2) the floor is selectively etched relative to the walls of the gap. Without ion implantation, the etch operation would be isotropic owing to the remote nature of the plasma excitation during the etch process.

    Abstract translation: 描述了在图案化衬底上各向异性地干蚀刻暴露的衬底材料的方法。 图案化衬底具有由例如含硅材料或含金属材料制成的单一材料形成的间隙。 该方法包括定向离子注入图案化结构以植入间隙的底部,而基本上不插入间隙的壁。 随后,使用含氟前体形成远程等离子体以蚀刻图案化衬底,使得(1)相对于间隙的底板选择性地蚀刻壁,或者(2)相对于壁选择性地蚀刻地板 的差距。 在没有离子注入的情况下,蚀刻操作将是各向同性的,这是由于在蚀刻过程期间等离子体激发的远程特性。

    Air gap formation in interconnection structure by implantation process
    8.
    发明授权
    Air gap formation in interconnection structure by implantation process 有权
    通过植入工艺在互连结构中形成气隙

    公开(公告)号:US09595467B2

    公开(公告)日:2017-03-14

    申请号:US14597149

    申请日:2015-01-14

    Abstract: Methods for forming air gaps in an interconnection structure with desired materials formed on different locations of the interconnection structure using an ion implantation process to define an etching boundary followed by an etching process for semiconductor devices are provided. In one embodiment, a method for forming air gaps in an interconnection structure on a substrate, the method includes implanting ions in a first region of an insulating material disposed on a substrate, leaving a second region without implanted ions, the second region having a first surface interfaced with the first region and a second surface interfaced with the substrate, and performing an etching process to selectively etch the second region away from the substrate, forming an air gap between the first region and the substrate.

    Abstract translation: 提供了使用离子注入工艺形成在互连结构的不同位置上形成的所需材料的互连结构中的空气间隙以限定蚀刻边界,然后进行半导体器件的蚀刻工艺的方法。 在一个实施例中,一种用于在衬底上形成互连结构中的气隙的方法,所述方法包括将离子注入设置在衬底上的绝缘材料的第一区域中,留下没有注入离子的第二区域,第二区域具有第一 与第一区域接合的表面和与衬底接合的第二表面,以及执行蚀刻工艺以选择性地蚀刻第二区域远离衬底,在第一区域和衬底之间形成气隙。

    Plasma process chambers employing distribution grids having focusing surfaces thereon enabling angled fluxes to reach a substrate, and related methods
    9.
    发明授权
    Plasma process chambers employing distribution grids having focusing surfaces thereon enabling angled fluxes to reach a substrate, and related methods 有权
    等离子体处理室采用其上具有聚焦表面的分配网格,能够使角度通量到达基板,以及相关方法

    公开(公告)号:US09534289B2

    公开(公告)日:2017-01-03

    申请号:US14657405

    申请日:2015-03-13

    Abstract: Plasma process chambers employing distribution grids having focusing surfaces thereon enabling angled fluxes to reach a substrate, and associated methods are disclosed. A distribution grid is disposed in a chamber between the plasma and a substrate. The distribution grid includes a first surface facing the substrate and a focusing surface facing the plasma. A passageway extends through the distribution grid, and is sized with a width to prevent the plasma sheath from entering therein. By positioning the focusing surface at an angle other than parallel to the substrate, an ion flux from the plasma may be accelerated across the plasma sheath and particles of the flux pass through the passageway to be incident upon the substrate. In this manner, the angled ion flux may perform thin film deposition and etch processes on sidewalls of features extending orthogonally from or into the substrate, as well as angled implant and surface modification.

    Abstract translation: 等离子体处理室采用其上具有聚焦表面的分配网格,其上形成有角度的焊剂以到达衬底,以及相关方法。 配电网布置在等离子体和基板之间的室中。 配电网包括面向衬底的第一表面和面向等离子体的聚焦表面。 通道延伸穿过配电网,并且具有宽度的尺寸以防止等离子体护套进入其中。 通过将聚焦表面定位在与衬底不同的角度处,来自等离子体的离子通量可以跨越等离子体鞘加速,并且助焊剂的颗粒通过通道入射到衬底上。 以这种方式,成角度的离子通量可以在从基底垂直延伸的特征的侧壁上进行薄膜沉积和蚀刻处理,以及成角度的植入物和表面改性。

    Anisotropic gap etch
    10.
    发明授权
    Anisotropic gap etch 有权
    各向异性间隙蚀刻

    公开(公告)号:US09502258B2

    公开(公告)日:2016-11-22

    申请号:US14581332

    申请日:2014-12-23

    Abstract: A method of anisotropically dry-etching exposed substrate material on a patterned substrate is described. The patterned substrate has a gap formed in a single material made from, for example, a silicon-containing material or a metal-containing material. The method includes directionally ion-implanting the patterned structure to implant the bottom of the gap without implanting substantially the walls of the gap. Subsequently, a remote plasma is formed using a fluorine-containing precursor to etch the patterned substrate such that either (1) the walls are selectively etched relative to the floor of the gap, or (2) the floor is selectively etched relative to the walls of the gap. Without ion implantation, the etch operation would be isotropic owing to the remote nature of the plasma excitation during the etch process.

    Abstract translation: 描述了在图案化衬底上各向异性地干蚀刻暴露的衬底材料的方法。 图案化衬底具有由例如含硅材料或含金属材料制成的单一材料形成的间隙。 该方法包括定向离子注入图案化结构以植入间隙的底部,而基本上不插入间隙的壁。 随后,使用含氟前体形成远程等离子体以蚀刻图案化衬底,使得(1)相对于间隙的底板选择性地蚀刻壁,或者(2)相对于壁选择性地蚀刻地板 的差距。 在没有离子注入的情况下,蚀刻操作将是各向同性的,这是由于在蚀刻过程期间等离子体激发的远程特性。

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