3D ISOLATION OF A SEGMENTATED 3D NANOSHEET CHANNEL REGION

    公开(公告)号:US20240145595A1

    公开(公告)日:2024-05-02

    申请号:US17975332

    申请日:2022-10-27

    IPC分类号: H01L29/78 H01L29/06 H01L29/51

    摘要: A semiconductor structure includes semiconductor layers stacked vertically over a substrate. The structure includes a gate structure interleaved with the semiconductor layers, where the gate structure wraps around a first end portion of each semiconductor layer. The structure includes dielectric layers stacked vertically over the substrate and interleaved with the semiconductor layers, where a first end portion of each dielectric layer is aligned with a second end portion of each semiconductor layer, which is laterally opposite to the first end portion of each semiconductor layer. The structure includes a metal contact extending vertically to contact the second end portion of each semiconductor layer.