Semiconductor memory device and method of manufacturing the same

    公开(公告)号:US10854624B2

    公开(公告)日:2020-12-01

    申请号:US16358708

    申请日:2019-03-20

    摘要: Provided is a semiconductor memory device including a substrate, an isolation structure, a first gate dielectric layer, a first conductive layer, a second gate dielectric layer, a second conductive layer, and a protective layer. The substrate has an array region and a periphery region. The isolation structure is disposed in the substrate between the array and periphery regions. The first gate dielectric layer is disposed on the substrate in the array region. The first conductive layer is disposed on the first gate dielectric layer. The second gate dielectric layer is disposed on the substrate in the periphery region. The second conductive layer is disposed on the second dielectric layer. The second conductive layer extends to cover a portion of a top surface of the isolation structure. The protective layer is disposed between the second conductive layer and the isolation structure.

    Method of manufacturing semiconductor memory device

    公开(公告)号:US11417678B2

    公开(公告)日:2022-08-16

    申请号:US17080831

    申请日:2020-10-26

    摘要: Provided is a semiconductor memory device including a substrate, an isolation structure, a first gate dielectric layer, a first conductive layer, a second gate dielectric layer, a second conductive layer, and a protective layer. The substrate has an array region and a periphery region. The isolation structure is disposed in the substrate between the array and periphery regions. The first gate dielectric layer is disposed on the substrate in the array region. The first conductive layer is disposed on the first gate dielectric layer. The second gate dielectric layer is disposed on the substrate in the periphery region. The second conductive layer is disposed on the second dielectric layer. The second conductive layer extends to cover a portion of a top surface of the isolation structure. The protective layer is disposed between the second conductive layer and the isolation structure.

    SEMICONDUCTOR MEMORY DEVICE AND METHOD OF MANUFACTURING THE SAME

    公开(公告)号:US20200303394A1

    公开(公告)日:2020-09-24

    申请号:US16358708

    申请日:2019-03-20

    摘要: Provided is a semiconductor memory device including a substrate, an isolation structure, a first gate dielectric layer, a first conductive layer, a second gate dielectric layer, a second conductive layer, and a protective layer. The substrate has an array region and a periphery region. The isolation structure is disposed in the substrate between the array and periphery regions. The first gate dielectric layer is disposed on the substrate in the array region. The first conductive layer is disposed on the first gate dielectric layer. The second gate dielectric layer is disposed on the substrate in the periphery region. The second conductive layer is disposed on the second dielectric layer. The second conductive layer extends to cover a portion of a top surface of the isolation structure. The protective layer is disposed between the second conductive layer and the isolation structure.

    ERASING METHOD
    5.
    发明申请
    ERASING METHOD 审中-公开

    公开(公告)号:US20200243143A1

    公开(公告)日:2020-07-30

    申请号:US16684591

    申请日:2019-11-15

    IPC分类号: G11C16/14 G11C16/34 G11C16/04

    摘要: An erasing method adapted for a semiconductor memory device is provided. The erasing method includes executing a pre-program process on the semiconductor memory device, executing an erase process on the semiconductor memory device, executing an over-erase verification process on a plurality of memory cells of the semiconductor memory device, detecting a total current consumption of the plurality of memory cells, determining the number of the memory cells to be executed with a soft program process according to the total current consumption, and executing the soft program process on the memory cells based on the number of the memory cells.

    Semiconductor device and method of fabricating same including two seal rings

    公开(公告)号:US11004805B2

    公开(公告)日:2021-05-11

    申请号:US16542305

    申请日:2019-08-16

    IPC分类号: H01L23/00 H01L21/74

    摘要: Provided is a method of fabricating a semiconductor device, including the following steps. A first seal ring and a second seal ring that are separated from each other are formed on a substrate. A protective layer covering the first seal ring and the second seal ring is formed on the substrate. The protective layer between the first seal ring and the second seal ring includes a concave surface. The protective layer at the concave surface and a portion of the protective layer on the first seal ring are removed to form a spacer on a sidewall of the first seal ring, and form an opening in the protective layer. The width of the opening is greater than the width of the first seal ring, and the opening exposes a top surface of the first seal ring and the spacer.

    SEMICONDUCTOR DEVICE AND METHOD OF FABRICATING SAME

    公开(公告)号:US20210050307A1

    公开(公告)日:2021-02-18

    申请号:US16542305

    申请日:2019-08-16

    IPC分类号: H01L23/00 H01L21/74

    摘要: Provided is a method of fabricating a semiconductor device, including the following steps. A first seal ring and a second seal ring that are separated from each other are formed on a substrate. A protective layer covering the first seal ring and the second seal ring is formed on the substrate. The protective layer between the first seal ring and the second seal ring includes a concave surface. The protective layer at the concave surface and a portion of the protective layer on the first seal ring are removed to form a spacer on a sidewall of the first seal ring, and form an opening in the protective layer. The width of the opening is greater than the width of the first seal ring, and the opening exposes a top surface of the first seal ring and the spacer.

    METHOD OF MANUFACTURING SEMICONDUCTOR MEMORY DEVICE

    公开(公告)号:US20210043642A1

    公开(公告)日:2021-02-11

    申请号:US17080831

    申请日:2020-10-26

    摘要: Provided is a semiconductor memory device including a substrate, an isolation structure, a first gate dielectric layer, a first conductive layer, a second gate dielectric layer, a second conductive layer, and a protective layer. The substrate has an array region and a periphery region. The isolation structure is disposed in the substrate between the array and periphery regions. The first gate dielectric layer is disposed on the substrate in the array region. The first conductive layer is disposed on the first gate dielectric layer. The second gate dielectric layer is disposed on the substrate in the periphery region. The second conductive layer is disposed on the second dielectric layer. The second conductive layer extends to cover a portion of a top surface of the isolation structure. The protective layer is disposed between the second conductive layer and the isolation structure.