Methods of manufacturing semiconductor devices

    公开(公告)号:US10991574B2

    公开(公告)日:2021-04-27

    申请号:US16407700

    申请日:2019-05-09

    Abstract: A method of manufacturing a semiconductor device includes forming a three-dimensional (3D) structure on a substrate, forming an adsorption control layer to cover an upper portion of the 3D structure, and forming a material layer on the adsorption control layer and on a lower portion of the 3D structure that is not covered by the adsorption control layer, wherein a minimum thickness of the material layer on the adsorption control layer is less than a maximum thickness of the material layer on the lower portion of the 3D structure.

    Integrated circuit device
    3.
    发明授权

    公开(公告)号:US11043553B2

    公开(公告)日:2021-06-22

    申请号:US16520912

    申请日:2019-07-24

    Abstract: An integrated circuit device includes a lower electrode, an upper electrode, and a dielectric layer structure between the lower electrode and the upper electrode, the dielectric layer structure including a first surface facing the lower electrode and a second surface facing the upper electrode. The dielectric layer structure includes a first dielectric layer including a first dielectric material and a plurality of grains extending from the first surface to the second surface and a second dielectric layer including a second dielectric material and surrounding a portion of a sidewall of each of the plurality of grains of the first dielectric layer in a level lower than the second surface. The second dielectric material includes a material having bandgap energy which is higher than bandgap energy of the first dielectric material.

    SEMICONDUCTOR DEVICES HAVING MULTI-THRESHOLD VOLTAGE

    公开(公告)号:US20190189767A1

    公开(公告)日:2019-06-20

    申请号:US16042114

    申请日:2018-07-23

    Abstract: A semiconductor device includes active regions on a semiconductor substrate, gate structures on separate, respective active regions, and source/drain regions in the semiconductor substrate on opposite sides of separate, respective gate structures. Each separate gate structure includes a sequential stack of a high dielectric layer, a first work function metal layer, a second work function metal layer having a lower work function than the first work function metal layer, and a gate metal layer. First work function metal layers of the gate structures have different thicknesses, such that the gate structures include a largest gate structure where the first work function metal layer of the largest gate structure has a largest thickness of the first work function metal layers. The largest gate structure includes a capping layer on the high dielectric layer of the largest gate structure, where the capping layer includes one or more impurity elements.

    Integrated circuit device
    6.
    发明授权

    公开(公告)号:US11929389B2

    公开(公告)日:2024-03-12

    申请号:US17324492

    申请日:2021-05-19

    CPC classification number: H01L28/40 H10B12/315

    Abstract: An integrated circuit device includes a lower electrode, an upper electrode, and a dielectric layer structure between the lower electrode and the upper electrode, the dielectric layer structure including a first surface facing the lower electrode and a second surface facing the upper electrode. The dielectric layer structure includes a first dielectric layer including a first dielectric material and a plurality of grains extending from the first surface to the second surface and a second dielectric layer including a second dielectric material and surrounding a portion of a sidewall of each of the plurality of grains of the first dielectric layer in a level lower than the second surface. The second dielectric material includes a material having bandgap energy which is higher than bandgap energy of the first dielectric material.

    INTEGRATED CIRCUIT DEVICE
    8.
    发明申请

    公开(公告)号:US20200091275A1

    公开(公告)日:2020-03-19

    申请号:US16520912

    申请日:2019-07-24

    Abstract: An integrated circuit device includes a lower electrode, an upper electrode, and a dielectric layer structure between the lower electrode and the upper electrode, the dielectric layer structure including a first surface facing the lower electrode and a second surface facing the upper electrode. The dielectric layer structure includes a first dielectric layer including a first dielectric material and a plurality of grains extending from the first surface to the second surface and a second dielectric layer including a second dielectric material and surrounding a portion of a sidewall of each of the plurality of grains of the first dielectric layer in a level lower than the second surface. The second dielectric material includes a material having bandgap energy which is higher than bandgap energy of the first dielectric material.

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