Selective deposition of metal oxide by pulsed chemical vapor deposition

    公开(公告)号:US11542597B2

    公开(公告)日:2023-01-03

    申请号:US16902665

    申请日:2020-06-16

    Abstract: Embodiments described and discussed herein provide methods for selectively depositing a metal oxides on a substrate. In one or more embodiments, methods for forming a metal oxide material includes positioning a substrate within a processing chamber, where the substrate has passivated and non-passivated surfaces, exposing the substrate to a first metal alkoxide precursor to selectively deposit a first metal oxide layer on or over the non-passivated surface, and exposing the substrate to a second metal alkoxide precursor to selectively deposit a second metal oxide layer on the first metal oxide layer. The method also includes sequentially repeating exposing the substrate to the first and second metal alkoxide precursors to produce a laminate film containing alternating layers of the first and second metal oxide layers. Each of the first and second metal alkoxide precursors contain different types of metals which are selected from titanium, zirconium, hafnium, aluminum, or lanthanum.

    Selective deposition of metal oxide by pulsed chemical vapor deposition

    公开(公告)号:US11993842B2

    公开(公告)日:2024-05-28

    申请号:US18072392

    申请日:2022-11-30

    CPC classification number: C23C16/405 C23C16/45523 C23C28/04

    Abstract: Embodiments described and discussed herein provide methods for selectively depositing a metal oxides on a substrate. In one or more embodiments, methods for forming a metal oxide material includes positioning a substrate within a processing chamber, where the substrate has passivated and non-passivated surfaces, exposing the substrate to a first metal alkoxide precursor to selectively deposit a first metal oxide layer on or over the non-passivated surface, and exposing the substrate to a second metal alkoxide precursor to selectively deposit a second metal oxide layer on the first metal oxide layer. The method also includes sequentially repeating exposing the substrate to the first and second metal alkoxide precursors to produce a laminate film containing alternating layers of the first and second metal oxide layers. Each of the first and second metal alkoxide precursors contains a different metal selected from titanium, zirconium, hafnium, aluminum, or lanthanum.

    High selectivity atomic later deposition process

    公开(公告)号:US11664215B2

    公开(公告)日:2023-05-30

    申请号:US16802290

    申请日:2020-02-26

    Abstract: Methods for depositing a metal containing material formed on a certain material of a substrate using an atomic layer deposition process for semiconductor applications are provided. In one example, a method of forming a metal containing material on a substrate comprises pulsing a first gas precursor comprising a metal containing precursor to a surface of a substrate, pulsing a second gas precursor comprising a carboxylic acid to the surface of the substrate, and forming a metal containing material selectively on a first material of the substrate. In another example, a method of forming a metal containing material on a substrate includes selectively forming a metal containing layer on a silicon material or a metal material on a substrate than on an insulating material on the substrate by an atomic layer deposition process by alternatively supplying a metal containing precursor and a water free precursor to the substrate.

    Self-limiting chemical vapor deposition and atomic layer deposition methods
    9.
    发明授权
    Self-limiting chemical vapor deposition and atomic layer deposition methods 有权
    自限制化学气相沉积和原子层沉积方法

    公开(公告)号:US09305780B2

    公开(公告)日:2016-04-05

    申请号:US14561525

    申请日:2014-12-05

    Abstract: Methods for depositing silicon on a semiconductor or metallic surface include cycling dosing of silane and chlorosilane precursors at a temperature between 50° C. and 300° C., and continuing cycling between three and twenty three cycles until the deposition self-limits via termination of surface sites with Si—H groups. Methods of layer formation include depositing a chlorosilane onto a substrate to form a first layer, wherein the substrate is selected from the group consisting of InxGa1-xAs, InxGa1-xSb, InxGa1-xN, SiGe, and Ge, wherein X is between 0.1 and 0.99. The methods may include pulsing a silane to form a silicon monolayer and cycling dosing of the chlorosilane and the silane. Layered compositions include a first layer selected from the group consisting of InxGa1-xAs, InxGa1-xSb, InxGa1-xN, SiGe, and Ge, wherein X is between 0.1 and 0.99, and a second layer, wherein the second layer comprises Si—H and Si—OH.

    Abstract translation: 在半导体或金属表面上沉积硅的方法包括在50℃和300℃之间的温度下循环给予硅烷和氯代硅烷前体,并在三到二十三个循环之间持续循环,直到通过终止 具有Si-H基团的表面位点。 层形成方法包括在衬底上沉积氯硅烷以形成第一层,其中衬底选自In x Ga 1-x As,In x Ga 1-x Sb,In x Ga 1-x N,Si Ge和Ge,其中X在0.1和 0.99。 所述方法可以包括脉动硅烷以形成硅单层并循环给予氯硅烷和硅烷。 层状组合物包括选自In x Ga 1-x As,In x Ga 1-x Sb,In x Ga 1-x N,Si Ge和Ge中的第一层,其中X为0.1至0.99,第二层为第二层,其中第二层包含Si-H 和Si-OH。

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