Dry-etch selectivity
    131.
    发明授权
    Dry-etch selectivity 有权
    干蚀刻选择性

    公开(公告)号:US08969212B2

    公开(公告)日:2015-03-03

    申请号:US13834206

    申请日:2013-03-15

    CPC classification number: H01L21/31116 H01J37/32357

    Abstract: A method of etching exposed patterned heterogeneous structures is described and includes a remote plasma etch formed from a reactive precursor. The plasma power is pulsed rather than left on continuously. Plasma effluents from the remote plasma are flowed into a substrate processing region where the plasma effluents selectively remove one material faster than another. The etch selectivity results from the pulsing of the plasma power to the remote plasma region, which has been found to suppress the number of ionically-charged species that reach the substrate. The etch selectivity may also result from the presence of an ion suppression element positioned between a portion of the remote plasma and the substrate processing region.

    Abstract translation: 描述了蚀刻暴露的图案化异质结构的方法,并且包括由反应性前体形成的远程等离子体蚀刻。 等离子体功率是脉冲的,而不是连续地保持。 来自远程等离子体的等离子体流出物流入衬底处理区域,其中等离子体流出物选择性地比另一种更快地去除一种材料。 蚀刻选择性是由等离子体功率脉冲到远程等离子体区域而产生的,这已经被发现抑制了到达衬底的离子充电物质的数量。 蚀刻选择性也可能由位于远程等离子体的一部分与基板处理区域之间的离子抑制元件的存在引起。

    Low cost flowable dielectric films
    132.
    发明授权
    Low cost flowable dielectric films 有权
    低成本流动介电膜

    公开(公告)号:US08889566B2

    公开(公告)日:2014-11-18

    申请号:US13668657

    申请日:2012-11-05

    Abstract: A method of forming a dielectric layer is described. The method deposits a silicon-containing film by chemical vapor deposition using a local plasma. The silicon-containing film is flowable during deposition at low substrate temperature. A silicon precursor (e.g. a silylamine, higher order silane or halogenated silane) is delivered to the substrate processing region and excited in a local plasma. A second plasma vapor or gas is combined with the silicon precursor in the substrate processing region and may include ammonia, nitrogen (N2), argon, hydrogen (H2) and/or oxygen (O2). The equipment configurations disclosed herein in combination with these vapor/gas combinations have been found to result in flowable deposition at substrate temperatures below or about 200° C. when a local plasma is excited using relatively low power.

    Abstract translation: 描述形成电介质层的方法。 该方法通过使用局部等离子体的化学气相沉积法沉积含硅膜。 含硅膜在低基板温度下沉积时是可流动的。 将硅前体(例如甲硅烷基胺,高级硅烷或卤代硅烷)输送到衬底处理区域并在局部等离子体中激发。 第二等离子体蒸气或气体与硅衬底加工区域中的硅前体结合,并且可包括氨,氮(N 2),氩,氢(H 2)和/或氧(O 2)。 已经发现本文公开的与这些蒸汽/气体组合组合的设备结构在基板温度低于或约200℃时导致可流动的沉积,当使用较低功率激发局部等离子体时。

    CONFORMAL OXIDE DRY ETCH
    133.
    发明申请
    CONFORMAL OXIDE DRY ETCH 审中-公开
    一氧化氮干燥剂

    公开(公告)号:US20140308818A1

    公开(公告)日:2014-10-16

    申请号:US14314889

    申请日:2014-06-25

    Abstract: A method of etching silicon oxide from a trench is described which allows more homogeneous etch rates up and down the sides of the trench. One disclosed method includes a sequential introduction of (1) a hydrogen-containing precursor and then (2) a fluorine-containing precursor into a substrate processing region. The temperature of the substrate is low during each of the two steps in order to allow the reaction to proceed and form solid residue by-product. A second disclosed method reverses the order of steps (1) and (2) but still forms solid residue by-product. The solid residue by-product is removed by raising the temperature in a subsequent sublimation step regardless of the order of the two steps.

    Abstract translation: 描述了从沟槽蚀刻二氧化硅的方法,其允许沟槽侧面上下的更均匀的蚀刻速率。 一种公开的方法包括将(1)含氢前体和(2)含氟前体顺序地引入基板处理区域中。 为了使反应进行并形成固体残余物副产物,底物的温度在两个步骤中都是低的。 第二个公开的方法逆转步骤(1)和(2)的顺序,但仍然形成固体残余物副产物。 通过在随后的升华步骤中升高温度来去除固体残余副产物,而不管两个步骤的顺序如何。

    Conformal oxide dry etch
    137.
    发明授权
    Conformal oxide dry etch 有权
    保形氧化物干蚀刻

    公开(公告)号:US08801952B1

    公开(公告)日:2014-08-12

    申请号:US13908184

    申请日:2013-06-03

    Abstract: A method of etching silicon oxide from a trench is described which allows more homogeneous etch rates up and down the sides of the trench. One disclosed method includes a sequential introduction of (1) a hydrogen-containing precursor and then (2) a fluorine-containing precursor into a substrate processing region. The temperature of the substrate is low during each of the two steps in order to allow the reaction to proceed and form solid residue by-product. A second disclosed method reverses the order of steps (1) and (2) but still forms solid residue by-product. The solid residue by-product is removed by raising the temperature in a subsequent sublimation step regardless of the order of the two steps.

    Abstract translation: 描述了从沟槽蚀刻二氧化硅的方法,其允许沟槽侧面上下的更均匀的蚀刻速率。 一种公开的方法包括将(1)含氢前体和(2)含氟前体顺序地引入基板处理区域中。 为了使反应进行并形成固体残余物副产物,底物的温度在两个步骤中都是低的。 第二个公开的方法逆转步骤(1)和(2)的顺序,但仍然形成固体残余物副产物。 通过在随后的升华步骤中升高温度来去除固体残余副产物,而不管两个步骤的顺序如何。

    SELECTIVE TITANIUM NITRIDE ETCHING
    138.
    发明申请
    SELECTIVE TITANIUM NITRIDE ETCHING 有权
    选择性硝酸铁蚀刻

    公开(公告)号:US20140179111A1

    公开(公告)日:2014-06-26

    申请号:US13791125

    申请日:2013-03-08

    CPC classification number: H01L21/32136 H01J37/32357

    Abstract: Methods of etching exposed titanium nitride with respect to other materials on patterned heterogeneous structures are described, and may include a remote plasma etch formed from a fluorine-containing precursor. Precursor combinations including plasma effluents from the remote plasma are flowed into a substrate processing region to etch the patterned structures with high titanium nitride selectivity under a variety of operating conditions. The methods may be used to remove titanium nitride at faster rates than a variety of metal, nitride, and oxide compounds.

    Abstract translation: 描述了相对于图案化异质结构上的其它材料蚀刻暴露的氮化钛的方法,并且可以包括由含氟前体形成的远程等离子体蚀刻。 包括来自远程等离子体的等离子体流出物的前体组合流入基板处理区域以在各种操作条件下以高氮化钛选择性蚀刻图案化结构。 该方法可用于以比各种金属,氮化物和氧化物化合物更快的速率除去氮化钛。

    Selective suppression of dry-etch rate of materials containing both silicon and nitrogen
    139.
    发明授权
    Selective suppression of dry-etch rate of materials containing both silicon and nitrogen 有权
    选择性抑制含有硅和氮的材料的干蚀刻速率

    公开(公告)号:US08541312B2

    公开(公告)日:2013-09-24

    申请号:US13745109

    申请日:2013-01-18

    Abstract: A method of suppressing the etch rate for exposed silicon-and-nitrogen-containing material on patterned heterogeneous structures is described and includes a two stage remote plasma etch. The etch selectivity of silicon relative to silicon nitride and other silicon-and-nitrogen-containing material is increased using the method. The first stage of the remote plasma etch reacts plasma effluents with the patterned heterogeneous structures to form protective solid by-product on the silicon-and-nitrogen-containing material. The plasma effluents of the first stage are formed from a remote plasma of a combination of precursors, including nitrogen trifluoride and hydrogen (H2). The second stage of the remote plasma etch also reacts plasma effluents with the patterned heterogeneous structures to selectively remove material which lacks the protective solid by-product. The plasma effluents of the second stage are formed from a remote plasma of a fluorine-containing precursor.

    Abstract translation: 描述了抑制图案化异质结构上暴露的含硅和氮的材料的蚀刻速率的方法,并且包括两级远程等离子体蚀刻。 使用该方法,硅相对于氮化硅和其它含硅和氮的材料的蚀刻选择性增加。 远程等离子体蚀刻的第一阶段使等离子体流出物与图案化的异质结构反应,以在含硅和氮的材料上形成保护性固体副产物。 第一级的等离子体流出物由包括三氟化氮和氢气(H 2)在内的前体组合的远程等离子体形成。 远程等离子体蚀刻的第二阶段还使等离子体流出物与图案化的异质结构反应,以选择性地去除缺乏保护性固体副产物的材料。 第二级的等离子体流出物由含氟前体的远程等离子体形成。

    SEAM PERFORMANCE IMPROVEMENT USING HYDROXYLATION FOR GAPFILL

    公开(公告)号:US20250066913A1

    公开(公告)日:2025-02-27

    申请号:US18455508

    申请日:2023-08-24

    Abstract: Methods of filling a feature on a semiconductor substrate may include performing a process to fill the feature on the semiconductor substrate by repeatedly performing first operations. First operations can include providing a silicon-containing precursor. First operations can include contacting the substrate with the silicon-containing precursor to form a silicon-containing material within the feature defined on the substrate. First operations can include purging the semiconductor processing chamber. First operations can include providing an oxygen-and-hydrogen-containing precursor. First operations can include contacting the substrate with the oxygen-and-hydrogen-containing precursor to form a silicon-and-oxygen-containing material within the feature defined on the substrate.

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