SEMICONDUCTOR DEVICES AND METHODS FOR FABRICATING THE SAME

    公开(公告)号:US20220238641A1

    公开(公告)日:2022-07-28

    申请号:US17412393

    申请日:2021-08-26

    Abstract: Semiconductor devices are provided. The semiconductor devices includes a landing pad on a substrate, a lower electrode on the landing pad and connected to the landing pad, a capacitor dielectric film that is on the lower electrode and includes both a tetragonal crystal system and an orthorhombic crystal system, a first doping layer that is between the lower electrode and the capacitor dielectric film and includes a first metal, and an upper electrode on the capacitor dielectric film.

    Semiconductor device including dielectric layer

    公开(公告)号:US10090323B2

    公开(公告)日:2018-10-02

    申请号:US15484339

    申请日:2017-04-11

    Abstract: A semiconductor device includes a stack structure on a substrate, the stack structure including interlayer insulating layers and first gate electrodes alternately stacked on each other, a semiconductor layer in an opening penetrating through the stack structure, a first dielectric layer between the semiconductor layer and the stack structure, and a lower pattern closer to the substrate than to the first gate electrodes in the stack structure, the lower pattern including a first surface facing the first dielectric layer, and a second surface facing the stack structure, the second surface defining an acute angle with the first surface, wherein the first dielectric layer includes a first portion facing the stack structure, and a second portion facing the first surface of the lower pattern, the second portion having a thickness greater than a thickness of the first portion.

    Semiconductor device
    16.
    发明授权

    公开(公告)号:US11322578B2

    公开(公告)日:2022-05-03

    申请号:US16590565

    申请日:2019-10-02

    Abstract: There is provided a semiconductor device capable of improving the performance and/or reliability of the element, by increasing the capacitance of the capacitor, using a capacitor dielectric film including a ferroelectric material and a paraelectric material. The semiconductor device includes first and second electrodes disposed to be spaced apart from each other, and a capacitor dielectric film disposed between the first electrode and the second electrode and including a first dielectric film and a second dielectric film. The first dielectric film includes one of a first monometal oxide film and a first bimetal oxide film, the first dielectric film has an orthorhombic crystal system, the second dielectric film includes a paraelectric material, and a dielectric constant of the capacitor dielectric film is greater than a dielectric constant of the second dielectric film.

    Vertical memory device with a channel layer in a stacked dielectric layer

    公开(公告)号:US11189636B2

    公开(公告)日:2021-11-30

    申请号:US16870082

    申请日:2020-05-08

    Abstract: A semiconductor device includes a stack structure on a substrate, the stack structure including interlayer insulating layers and first gate electrodes alternately stacked on each other, a semiconductor layer in an opening penetrating through the stack structure, a first dielectric layer between the semiconductor layer and the stack structure, and a lower pattern closer to the substrate than to the first gate electrodes in the stack structure, the lower pattern including a first surface facing the first dielectric layer, and a second surface facing the stack structure, the second surface defining an acute angle with the first surface, wherein the first dielectric layer includes a first portion facing the stack structure, and a second portion facing the first surface of the lower pattern, the second portion having a thickness greater than a thickness of the first portion.

    Semiconductor device including dielectric layer

    公开(公告)号:US10651194B2

    公开(公告)日:2020-05-12

    申请号:US16142637

    申请日:2018-09-26

    Abstract: A semiconductor device includes a stack structure on a substrate, the stack structure including interlayer insulating layers and first gate electrodes alternately stacked on each other, a semiconductor layer in an opening penetrating through the stack structure, a first dielectric layer between the semiconductor layer and the stack structure, and a lower pattern closer to the substrate than to the first gate electrodes in the stack structure, the lower pattern including a first surface facing the first dielectric layer, and a second surface facing the stack structure, the second surface defining an acute angle with the first surface, wherein the first dielectric layer includes a first portion facing the stack structure, and a second portion facing the first surface of the lower pattern, the second portion having a thickness greater than a thickness of the first portion.

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