Semiconductor structure and method of forming the same

    公开(公告)号:US10658458B2

    公开(公告)日:2020-05-19

    申请号:US16028386

    申请日:2018-07-05

    Abstract: A method of forming a semiconductor structure is disclosed. A fin structure is formed on a substrate and a trench is formed in the fin structure. The trench has a top corner, an upper portion having an upper sidewall and a lower portion having a lower sidewall. A first dielectric layer is then formed on the substrate and fills the lower portion of the trench. After that, a second dielectric layer is formed on the substrate and covers the top corner and the upper sidewall of the trench. The second dielectric layer also covers an upper surface of the first dielectric layer.

    Semiconductor device and method for fabricating the same

    公开(公告)号:US10679903B2

    公开(公告)日:2020-06-09

    申请号:US15859775

    申请日:2018-01-02

    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 and an interlayer dielectric (ILD) layer around the first gate structure and the second gate structure; transforming the first gate structure and the second gate structure into a first metal gate and a second metal gate; forming a hard mask on the first metal gate and the second metal gate; removing part of the hard mask, the second metal gate, and part of the fin-shaped structure to form a trench; and forming a dielectric layer into the trench to form a single diffusion break (SDB) structure.

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