Method for fabricating memory device
    21.
    发明授权
    Method for fabricating memory device 有权
    制造存储器件的方法

    公开(公告)号:US09070753B1

    公开(公告)日:2015-06-30

    申请号:US14327255

    申请日:2014-07-09

    Abstract: Provided is a method for fabricating a memory device. A stack layer, including a storage layer, a first conductive layer and a first mask layer, is formed on the substrate in a first region and a second region. The stack layer is patterned to form a plurality of first patterned stack layers extending along a first direction and from the first region to the second region. Two sides of each first patterned stack layers have openings respectively. A filling layer is formed on the substrate, and filled in the openings. A second mask layer is formed on the second region, and does not cover the filling layer in the second region. Then, using the second mask layer and the filling layer as mask, the first patterned stack layers and part of the substrate are removed, and a plurality of trenches are formed in the substrate in the second region.

    Abstract translation: 提供一种用于制造存储器件的方法。 在第一区域和第二区域中的衬底上形成包括存储层,第一导电层和第一掩模层的堆叠层。 图案化堆叠层以形成沿着第一方向从第一区域延伸到第二区域的多个第一图案化堆叠层。 每个第一图案化叠层的两侧分别具有开口。 填充层形成在基板上并填充在开口中。 第二掩模层形成在第二区域上,并且不覆盖第二区域中的填充层。 然后,使用第二掩模层和填充层作为掩模,去除第一图案化堆叠层和衬底的一部分,并且在第二区域中的衬底中形成多个沟槽。

    Memory device and manufacturing method thereof

    公开(公告)号:US12048154B2

    公开(公告)日:2024-07-23

    申请号:US17344661

    申请日:2021-06-10

    CPC classification number: H10B43/27 H10B41/10 H10B41/27 H10B43/10

    Abstract: A memory device includes a first stack structure, a second stack structure, a channel pillar, a storage layer, and a conductive pillar. The first stack structure includes a first insulating layer and a first conductive layer located on the first insulating layer. The second stack structure is located on the first stack structure and includes a plurality of second conductive layers and a plurality of second insulating layers which alternate with each other. The channel pillar penetrates through the second stack structure and extends to the first stack structure. The storage layer is located between the channel pillar and the first stack structure and between the channel pillar and the second stack structure. The conductive pillar is located in the first conductive layer and electrically connected to the first conductive layer and the substrate.

    MEMORY DEVICE
    27.
    发明申请

    公开(公告)号:US20220302168A1

    公开(公告)日:2022-09-22

    申请号:US17836799

    申请日:2022-06-09

    Abstract: Provided is a memory device including a stack structure, a first set of vertical channel structures, a second set of vertical channel structures and a first slit. The stack structure is disposed on a substrate, wherein a top surface of the substrate is parallel to a plane defined by a X direction and a Y direction perpendicular to the X direction. The first set of vertical channel structures and the second set of vertical channel structures are arranged along the Y direction and penetrating through the stack structure along a Z direction vertical to the plane to contact the substrate. The first slit is disposed between the first and second sets of vertical channel structures, and penetrates through the stack structure along the Z direction to expose the substrate, wherein the first slit includes a plurality of first sub-slits discretely disposed along the X direction.

    MEMORY DEVICE
    28.
    发明申请

    公开(公告)号:US20220123009A1

    公开(公告)日:2022-04-21

    申请号:US17075480

    申请日:2020-10-20

    Abstract: Provided is a memory device including a substrate, a stack structure on the substrate, a contact, and a supporting pillar. The stacked structure includes a plurality of conductive layers and a plurality of insulating layers stacked alternately on each other. The contact is connected to one of the plurality of conductive layers of the stack structure. The supporting pillar penetrates the stack structure and is disposed around the contact. The supporting pillar includes a body portion and a plurality of extension portions. The body portion is arranged around a first side of the contact. The plurality of extension portions are located on two sides of the body portion. A length of each of the extension portions is greater than a width of the contact, and one of the extension portions is disposed around a second side of the contact.

Patent Agency Ranking