Semiconductor device and manufacturing method thereof

    公开(公告)号:US11569294B2

    公开(公告)日:2023-01-31

    申请号:US16924162

    申请日:2020-07-08

    Abstract: A semiconductor device includes a semiconductor substrate and an interconnection region disposed on the semiconductor substrate. The interconnection region includes stacked metallization levels, a magnetic tunnel junction, and a transistor. The magnetic tunnel junction is formed on a first conductive pattern of a first metallization level of the stacked metallization levels. The transistor is formed on a second conductive pattern of a second metallization level of the stacked metallization levels. The transistor is a vertical gate-all-around transistor. A drain contact of the transistor is electrically connected to the magnetic tunnel junction by the first conductive pattern of the first metallization level. The second metallization level is closer to the semiconductor substrate than the first metallization level.

    SEMICONDUCTOR STRUCTURE AND MANUFACTURING METHOD THEREOF

    公开(公告)号:US20220320347A1

    公开(公告)日:2022-10-06

    申请号:US17377664

    申请日:2021-07-16

    Abstract: A semiconductor structure is provided. The semiconductor structure may include a transistor structure, the transistor structure may include a gate region arranged over an upper surface of a substrate and extending substantially in a first direction that is perpendicular to the upper surface of the substrate; a first source/drain region over the upper surface of the substrate; a second source/drain region over the upper surface of the substrate; and a channel region vertically extending in the first direction between the first source/drain region and the second source/drain region, wherein the channel region comprises an oxide semiconductor material. Along the first direction, the gate region covers a sidewall of the channel region.

    SEMICONDUCTOR STRUCTURE AND METHOD FOR FORMING THEREOF

    公开(公告)号:US20220320119A1

    公开(公告)日:2022-10-06

    申请号:US17345499

    申请日:2021-06-11

    Abstract: The present disclosure provides a semiconductor structure. The semiconductor structure includes a substrate and a stacked structure disposed on the substrate. The stacked structure includes multiple alternately stacked insulating layers and gate members. A core structure is disposed in the stacked structure. The core structure includes a memory layer, a channel member, a contact member, and a liner member. The channel member is disposed on the memory layer. The contact member is disposed on the channel member. The liner member surrounds a portion of the core structure. The present disclosure also provides a method for fabricating the semiconductor structure.

    Memory array staircase structure
    14.
    发明授权

    公开(公告)号:US11423966B2

    公开(公告)日:2022-08-23

    申请号:US17081380

    申请日:2020-10-27

    Abstract: Routing arrangements for 3D memory arrays and methods of forming the same are disclosed. In an embodiment, a memory array includes a first word line extending from a first edge of the memory array in a first direction, the first word line having a length less than a length of a second edge of the memory array perpendicular to the first edge of the memory array; a second word line extending from a third edge of the memory array opposite the first edge of the memory array, the second word line extending in the first direction, the second word line having a length less than the length of the second edge of the memory array; a memory film contacting the first word line; and an OS layer contacting a first source line and a first bit line, the memory film being disposed between the OS layer and the first word line.

    3D ferroelectric memory
    16.
    发明授权

    公开(公告)号:US11411025B2

    公开(公告)日:2022-08-09

    申请号:US16903545

    申请日:2020-06-17

    Abstract: Various embodiments of the present disclosure are directed towards a metal-ferroelectric-insulator-semiconductor (MFIS) memory device, as well as a method for forming the MFIS memory device. According to some embodiments of the MFIS memory device, a lower source/drain region and an upper source/drain region are vertically stacked. A semiconductor channel overlies the lower source/drain region and underlies the upper source/drain region. The semiconductor channel extends from the lower source/drain region to the upper source/drain region. A control gate electrode extends along a sidewall of the semiconductor channel and further along individual sidewalls of the lower and upper source/drain regions. A gate dielectric layer and a ferroelectric layer separate the control gate electrode from the semiconductor channel and the lower and upper source/drain regions.

    Spacer-defined back-end transistor as memory selector

    公开(公告)号:US11309353B2

    公开(公告)日:2022-04-19

    申请号:US17078583

    申请日:2020-10-23

    Abstract: The present disclosure, in some embodiments, relates to a memory device. In some embodiments, the memory device comprises a substrate and an interconnect structure disposed over the substrate. The interconnect structure comprises stacked interconnect metal layers disposed within stacked interlayer dielectric (ILD) layers. A memory cell is disposed between an upper interconnect metal layer and an intermediate interconnect metal layer. A selecting transistor is connected to the memory cell and disposed between the intermediate interconnect metal layer and a lower interconnect metal layer. By placing the selecting transistor within the back-end interconnect structure between two interconnect metal layers, front-end space is saved, and more integration flexibility is provided.

    SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF

    公开(公告)号:US20220013580A1

    公开(公告)日:2022-01-13

    申请号:US16924162

    申请日:2020-07-08

    Abstract: A semiconductor device includes a semiconductor substrate and an interconnection region disposed on the semiconductor substrate. The interconnection region includes stacked metallization levels, a magnetic tunnel junction, and a transistor. The magnetic tunnel junction is formed on a first conductive pattern of a first metallization level of the stacked metallization levels. The transistor is formed on a second conductive pattern of a second metallization level of the stacked metallization levels. The transistor is a vertical gate-all-around transistor. A drain contact of the transistor is electrically connected to the magnetic tunnel junction by the first conductive pattern of the first metallization level. The second metallization level is closer to the semiconductor substrate than the first metallization level.

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