Three-dimensional semiconductor device

    公开(公告)号:US10396088B2

    公开(公告)日:2019-08-27

    申请号:US15696276

    申请日:2017-09-06

    Abstract: A three-dimensional semiconductor device and a method of manufacturing the same are provided. The three-dimensional semiconductor device includes a stack structure including insulating layers and electrodes that are alternately stacked on a substrate, a horizontal semiconductor pattern between the substrate and the stack structure, vertical semiconductor patterns penetrating the stack structure and connected to the horizontal semiconductor pattern; and a common source plug at a side of the stack structure. The stack structure, the horizontal semiconductor pattern and the common source plug extend in a first direction. The horizontal semiconductor pattern includes a first sidewall extending in the first direction. The first sidewall has protrusions protruding toward the common source plug.

    Three-dimensional semiconductor memory device and a method of fabricating the same
    34.
    发明授权
    Three-dimensional semiconductor memory device and a method of fabricating the same 有权
    三维半导体存储器件及其制造方法

    公开(公告)号:US09117923B2

    公开(公告)日:2015-08-25

    申请号:US13830208

    申请日:2013-03-14

    CPC classification number: H01L29/7926 H01L27/11556 H01L27/11582

    Abstract: A method of forming a semiconductor memory device includes stacking a plurality of alternating first insulating layers and first sacrificial layers on a substrate to form a first multilayer structure, forming a first hole through the first multilayer structure, forming a first semiconductor pattern in the first hole, stacking a plurality of alternating second insulating layers and second sacrificial layers on the first multilayer structure to form a second multilayer structure, forming a second hole through the second multilayer structure to be aligned with the first hole, forming a second semiconductor pattern in the second hole, forming a trench to expose sidewalls of the first and second insulating layers at a side of the first and second semiconductor patterns, removing at least some portions of the first and second sacrificial layers to form a plurality of recess regions, forming an information storage layer, and forming a conductive pattern.

    Abstract translation: 一种形成半导体存储器件的方法包括在衬底上堆叠多个交替的第一绝缘层和第一牺牲层以形成第一多层结构,通过第一多层结构形成第一孔,在第一孔中形成第一半导体图案 在所述第一多层结构上堆叠多个交替的第二绝缘层和第二牺牲层以形成第二多层结构,通过所述第二多层结构形成与所述第一孔对准的第二孔,在所述第二多层结构中形成第二半导体图案 形成沟槽,以在第一和第二半导体图案的一侧露出第一绝缘层和第二绝缘层的侧壁,去除第一和第二牺牲层的至少一部分以形成多个凹陷区域,形成信息存储器 层,形成导电图案。

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