SEMICONDUCTOR MEMORY DEVICES AND METHODS FOR MANUFACTURING THE SAME

    公开(公告)号:US20240365532A1

    公开(公告)日:2024-10-31

    申请号:US18507204

    申请日:2023-11-13

    IPC分类号: H10B12/00

    摘要: Semiconductor memory devices including capacitors and methods for manufacturing thereof. The semiconductor memory device may include a substrate, an element isolation pattern defining an active area in the substrate, a first conductive pattern on the substrate and the element isolation pattern, and extending in a first direction, wherein the first conductive pattern is connected to a first portion of the active area, a capacitor structure on the substrate and the element isolation pattern and connected to a second portion of the active area, a gate trench defined in the substrate and the element isolation pattern and extending in a second direction, wherein a first trench width of a portion of the gate trench in the active area is greater than a second trench width of a portion of the gate trench in the element isolation pattern.

    Semiconductor device and method for fabricating the same

    公开(公告)号:US10559752B2

    公开(公告)日:2020-02-11

    申请号:US15678583

    申请日:2017-08-16

    IPC分类号: H01L45/00 H01L27/24

    摘要: A semiconductor device includes a first word line and a first bit line. The semiconductor device further includes a mold film disposed between the first word line and the first bit line, and a first memory cell disposed in the mold film. The first memory cell includes a first lower electrode in contact with the first word line. Side surfaces of the first lower electrode are in direct contact with the mold film. The first memory cell includes a first phase-change memory in contact with the first lower electrode, a first intermediate electrode in contact with the first phase-change memory, a first ovonic threshold switch (OTS) in contact with the first intermediate electrode, and a first upper electrode disposed between the first OTS and the first bit line, the first upper electrode in contact with the first OTS and the first bit line.