INTEGRATED CIRCUIT STRUCTURES HAVING DIELECTRIC ANCHOR VOID

    公开(公告)号:US20230187517A1

    公开(公告)日:2023-06-15

    申请号:US17551022

    申请日:2021-12-14

    CPC classification number: H01L29/42392 H01L29/0673 H01L29/78696 H01L27/088

    Abstract: Integrated circuit structures having a dielectric anchor void, and methods of fabricating integrated circuit structures having a dielectric anchor void, are described. For example, an integrated circuit structure includes a sub-fin in a shallow trench isolation (STI) structure. A plurality of horizontally stacked nanowires is over the sub-fin. A gate dielectric material layer is surrounding the horizontally stacked nanowires. A gate electrode structure is over the gate dielectric material layer. A dielectric anchor is laterally spaced apart from the plurality of horizontally stacked nanowires and recessed into a first portion of the STI structure. A second portion of the STI structure on a side of the plurality of horizontally stacked nanowires opposite the dielectric anchor has a trench therein. A dielectric gate plug is on the dielectric anchor.

    STENT AND WRAP CONTACT
    160.
    发明申请

    公开(公告)号:US20220399233A1

    公开(公告)日:2022-12-15

    申请号:US17346964

    申请日:2021-06-14

    Abstract: Embodiments disclosed herein include integrated circuit structures and methods of forming such structures. In an embodiment, an integrated circuit structure comprises plurality of gate structures above a substrate, a plurality of conductive trench contact structures alternating with the plurality of gate structures, a plurality of dielectric spacers, a corresponding one of the plurality of dielectric spacers between adjacent ones of the plurality of gate structures and the plurality of conductive trench contact structures, and a plurality of conductive vias, individual ones of the plurality of conductive vias on corresponding ones of the plurality of conductive trench contact structures, wherein bottommost surfaces of the conductive vias are below topmost surfaces of the plurality of conductive trench contact structures.

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