SEMICONDUCTOR MEMORY DEVICE AND METHOD FOR FABRICATING THE SAME

    公开(公告)号:US20240306380A1

    公开(公告)日:2024-09-12

    申请号:US18663550

    申请日:2024-05-14

    CPC classification number: H10B12/50 H10B12/0335 H10B12/09 H10B12/315 H10B12/34

    Abstract: A semiconductor memory device comprises a substrate which includes a cell region, and a peri region defined around the cell region, the cell region including an active region defined by an element separation film, a storage pad connected to the active region of the cell region, a peri gate structure placed on the substrate of the peri region, a peri contact plug placed on both sides of the peri gate structure and connected to the substrate, a first interlayer insulating film which is placed on the storage pad and the peri contact plug, and includes a nitride-based insulating material, and an information storage unit connected to the storage pad, wherein a thickness of the first interlayer insulating film on an upper surface of the storage pad is smaller than a thickness of the first interlayer insulating film on an upper surface of the peri contact plug.

    SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME

    公开(公告)号:US20240244834A1

    公开(公告)日:2024-07-18

    申请号:US18154870

    申请日:2023-01-16

    CPC classification number: H10B12/50 H10B12/09 H10B12/315 H10B12/34

    Abstract: A semiconductor device, including a first MOS device, a second MOS device, a first dielectric layer, a stop layer, and a second dielectric layer, is provided. The first MOS device and the second MOS device are located on a substrate. The first dielectric layer is beside the first MOS device and the second MOS device. The stop layer is disposed on the first dielectric layer. The second dielectric layer covers the stop layer. The thickness of the second dielectric layer above the first MOS device is greater than the thickness of the second dielectric layer above the second MOS device.

    SEMICONDUCTOR DEVICE WITH PERIPHERAL GATE STRUCTURE AND METHOD FOR FABRICATING THE SAME

    公开(公告)号:US20240130103A1

    公开(公告)日:2024-04-18

    申请号:US18374154

    申请日:2023-09-28

    Inventor: TSE-YAO HUANG

    CPC classification number: H10B12/09 H10B12/34 H10B12/50

    Abstract: The present application discloses a semiconductor device and a method for fabricating the semiconductor device. The semiconductor device includes a substrate including an array area and a peripheral area; and a peripheral gate structure including: a peripheral gate dielectric layer inwardly positioned in the peripheral area of the substrate and including a U-shaped cross-sectional profile; a peripheral gate conductor including a bottom portion positioned on the peripheral gate dielectric layer and a neck portion positioned on the bottom portion; and a peripheral gate capping layer positioned on the peripheral gate dielectric layer and the bottom portion, and surrounding the neck portion. A top surface of the peripheral gate capping layer and a top surface of the neck portion are substantially coplanar.

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