BACK-END ACTIVE DEVICE
    1.
    发明申请

    公开(公告)号:US20250081622A1

    公开(公告)日:2025-03-06

    申请号:US18531089

    申请日:2023-12-06

    Abstract: Semiconductor structures and formation processes thereof are provided. A semiconductor structure of the present disclosure includes a semiconductor substrate, a plurality of transistors disposed on the semiconductor substrate and comprising a plurality of gate structures extending lengthwise along a first direction, a metallization layer disposed over the plurality of transistors, the metallization layer comprising a plurality of metal layers and a plurality of contact vias, a dielectric layer over the metallization layer, a plurality of dielectric fins extending parallel along the first direction and disposed over the dielectric layer, a semiconductor layer disposed conformally over the plurality of dielectric fins, a source contact and a drain contact disposed directly on the semiconductor layer, and a gate structure disposed over the semiconductor layer and between the source contact and the drain contact.

    MEMORY DEVICES
    4.
    发明公开
    MEMORY DEVICES 审中-公开

    公开(公告)号:US20240315152A1

    公开(公告)日:2024-09-19

    申请号:US18669541

    申请日:2024-05-21

    Abstract: A method of forming a memory device includes the following operations. A first conductive plug is formed within a first dielectric layer over a substrate. A treating process is performed to transform a portion of the first conductive plug into a buffer layer, and the buffer layer caps the remaining portion of the first conductive plug. A phase change layer and a top electrode are sequentially formed over the buffer layer. A second dielectric layer is formed to encapsulate the top electrode and the underlying phase change layer. A second conductive plug is formed within the second dielectric layer and in physical contact with the top electrode. A filamentary bottom electrode is formed within the buffer layer.

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