Semiconductor structure manufacturing methods and semiconductor structures

    公开(公告)号:US12057312B2

    公开(公告)日:2024-08-06

    申请号:US17616170

    申请日:2020-04-26

    Abstract: The present invention provides a manufacturing method of a semiconductor structure and a semiconductor structure. The manufacturing method includes: providing a substrate; forming an amorphous layer on the substrate, wherein the amorphous layer includes a plurality of patterns to expose part of the substrate; forming a metal nitride layer on the amorphous layer; removing the amorphous layer to form a plurality of cavities between the substrate and the metal nitride layer; removing the substrate to form the semiconductor structure. In the present invention, an amorphous layer is formed on the substrate, and a metal nitride layer is formed on the amorphous layer. The amorphous layer can inhibit slip or dislocation during epitaxial growth, thereby improving the quality of the metal nitride layer and improving the performance of the semiconductor structure, while the metal nitride layer can realize self-supporting.

    SEMICONDUCTOR DEVICE
    10.
    发明公开

    公开(公告)号:US20240021668A1

    公开(公告)日:2024-01-18

    申请号:US18335447

    申请日:2023-06-15

    Abstract: A semiconductor device includes an oxide semiconductor layer having a polycrystalline structure on an insulating surface, a gate electrode over the oxide semiconductor layer, and a gate insulating layer between the oxide semiconductor layer and the gate electrode. The oxide semiconductor layer includes a first region having a first crystal structure overlapping the gate electrode and a second region having a second crystal structure not overlapping the gate electrode. An electrical conductivity of the second region is larger than an electrical conductivity of the first region. The second crystal structure is identical to the first crystal structure.

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