SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF

    公开(公告)号:US20250063776A1

    公开(公告)日:2025-02-20

    申请号:US18373953

    申请日:2023-09-27

    Abstract: A semiconductor device includes a semiconductor substrate, an isolation structure, and a first electrically conductive structure. The semiconductor substrate has a planar device region and a fin device region. The semiconductor substrate includes a mesa structure disposed in the planar device region and fin-shaped structures disposed in the fin device region. The isolation structure is disposed on the semiconductor substrate and includes a first portion which is disposed on the planar device region and covers a sidewall of the mesa structure, and the isolation structure further includes a second portion which is disposed on the fin device region and located between the fin-shaped structures. The first electrically conductive structure is disposed on the planar device region. The first electrically conductive structure is partly disposed above the mesa structure in a vertical direction and partly disposed above the first portion of the isolation structure in the vertical direction.

    SEMICONDUCTOR DEVICE
    3.
    发明申请

    公开(公告)号:US20210210628A1

    公开(公告)日:2021-07-08

    申请号:US17207751

    申请日:2021-03-22

    Abstract: A semiconductor device includes a fin-shaped structure on the substrate, a shallow trench isolation (STI) around the fin-shaped structure, a single diffusion break (SDB) structure in the fin-shaped structure for dividing the fin-shaped structure into a first portion and a second portion; a first gate structure on the fin-shaped structure, a second gate structure on the STI, and a third gate structure on the SDB structure. Preferably, a width of the third gate structure is greater than a width of the second gate structure and each of the first gate structure, the second gate structure, and the third gate structure includes a U-shaped high-k dielectric layer, a U-shaped work function metal layer, and a low-resistance metal layer.

    METHOD FOR FABRICATING SEMICONDUCTOR DEVICE
    5.
    发明申请

    公开(公告)号:US20190043964A1

    公开(公告)日:2019-02-07

    申请号:US15690260

    申请日:2017-08-29

    Abstract: A method for fabricating semiconductor device includes the steps of: forming a fin-shaped structure on a substrate; forming a first gate structure and a second gate structure on the fin-shaped structure; forming an interlayer dielectric (ILD) layer around the first gate structure and the second gate structure; removing the second gate structure and part of the fin-shaped structure to forma first trench; forming a dielectric layer into the first trench; and planarizing part of the dielectric layer to form a single diffusion break (SDB) structure. Preferably, the top surfaces of the SDB structure and the first gate structure are coplanar.

    SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING THE SAME

    公开(公告)号:US20230066954A1

    公开(公告)日:2023-03-02

    申请号:US17983417

    申请日:2022-11-09

    Abstract: A semiconductor device includes a gate structure on a substrate, a single diffusion break (SDB) structure adjacent to the gate structure, a first spacer adjacent to the gate structure, a second spacer adjacent to the SDB structure, a source/drain region between the first spacer and the second spacer, an interlayer dielectric (ILD) layer around the gate structure and the SDB structure, and a contact plug in the ILD layer and on the source/drain region. Preferably, a top surface of the second spacer is lower than a top surface of the first spacer.

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