Semiconductor devices including a capping layer

    公开(公告)号:US10707164B2

    公开(公告)日:2020-07-07

    申请号:US16296388

    申请日:2019-03-08

    Abstract: Methods of forming a semiconductor device are provided. A method of forming a semiconductor device may include forming a capping layer on a metal pattern and on an adjacent portion of an insulating layer, the capping layer comprising a first etch selectivity, with respect to the insulating layer, on the metal pattern and a second etch selectivity, with respect to the insulating layer, on the portion of the insulating layer. Moreover, the method may include forming a recess region adjacent the metal pattern by removing the capping layer from the portion of the insulating layer. At least a portion of the capping layer may remain on an uppermost surface of the metal pattern after removing the capping layer from the portion of the insulating layer. Related semiconductor devices are also provided.

    Semiconductor devices
    2.
    发明授权

    公开(公告)号:US10446774B2

    公开(公告)日:2019-10-15

    申请号:US15870922

    申请日:2018-01-13

    Abstract: A semiconductor device includes a first conductive pattern at an upper portion of a first insulating interlayer on a first substrate, a first plurality of conductive nanotubes (CNTs) extending vertically, a second conductive pattern at a lower portion of a second insulating interlayer beneath a second substrate, and a second plurality of CNTs extending vertically. A lower surface of the second insulating interlayer contacts an upper surface of the first insulating interlayer. At least a portion of a sidewall of each of the first plurality of CNTs is covered by the first conductive pattern, and at least a portion of a sidewall of each of the second plurality of CNTs is covered by the second conductive pattern. The first and second conductive patterns vertically face each other, and at least one of the first plurality of CNTs and at least one of the second plurality of CNTs contact each other.

    Semiconductor devices
    4.
    发明授权

    公开(公告)号:US10217820B2

    公开(公告)日:2019-02-26

    申请号:US15632884

    申请日:2017-06-26

    Abstract: Semiconductor devices may include a diffusion prevention insulation pattern, a plurality of conductive patterns, a barrier layer, and an insulating interlayer. The diffusion prevention insulation pattern may be formed on a substrate, and may include a plurality of protrusions protruding upwardly therefrom. Each of the conductive patterns may be formed on each of the protrusions of the diffusion prevention insulation pattern, and may have a sidewall inclined by an angle in a range of about 80 degrees to about 135 degrees to a top surface of the substrate. The barrier layer may cover a top surface and the sidewall of each if the conductive patterns. The insulating interlayer may be formed on the diffusion prevention insulation pattern and the barrier layer, and may have an air gap between neighboring ones of the conductive patterns.

    Methods of Forming Wiring Structures and Methods of Fabricating Semiconductor Devices
    6.
    发明申请
    Methods of Forming Wiring Structures and Methods of Fabricating Semiconductor Devices 有权
    形成接线结构的方法和制造半导体器件的方法

    公开(公告)号:US20150194333A1

    公开(公告)日:2015-07-09

    申请号:US14516774

    申请日:2014-10-17

    Abstract: Methods of forming a wiring structure are provided including forming an insulating interlayer on a substrate and forming a sacrificial layer on the insulating interlayer. The sacrificial layer is partially removed to define a plurality of openings. Wiring patterns are formed in the openings. The sacrificial layer is transformed into a modified sacrificial layer by a plasma treatment. The modified sacrificial layer is removed by a wet etching process. An insulation layer covering the wiring patterns is formed on the insulating interlayer. The insulation layer defines an air gap therein between neighboring wiring patterns.

    Abstract translation: 提供形成布线结构的方法包括在基板上形成绝缘中间层并在绝缘中间层上形成牺牲层。 牺牲层被部分地去除以限定多个开口。 在开口中形成接线图案。 通过等离子体处理将牺牲层转变成改性的牺牲层。 通过湿蚀刻工艺去除改性牺牲层。 在绝缘中间层上形成覆盖布线图案的绝缘层。 绝缘层在相邻布线图案之间限定了气隙。

    Semiconductor devices
    7.
    发明授权

    公开(公告)号:US10700164B2

    公开(公告)日:2020-06-30

    申请号:US16274350

    申请日:2019-02-13

    Abstract: Semiconductor devices may include a diffusion prevention insulation pattern, a plurality of conductive patterns, a barrier layer, and an insulating interlayer. The diffusion prevention insulation pattern may be formed on a substrate, and may include a plurality of protrusions protruding upwardly therefrom. Each of the conductive patterns may be formed on each of the protrusions of the diffusion prevention insulation pattern, and may have a sidewall inclined by an angle in a range of about 80 degrees to about 135 degrees to a top surface of the substrate. The barrier layer may cover a top surface and the sidewall of each if the conductive patterns. The insulating interlayer may be formed on the diffusion prevention insulation pattern and the barrier layer, and may have an air gap between neighboring ones of the conductive patterns.

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