公开(公告)号：US20230240074A1

公开(公告)日：2023-07-27

申请号：US18129145

申请日：2023-03-31

Applicant: Samsung Electronics Co., Ltd.

Inventor： SEONG-HUN JEONG ,  BYOUNGIL LEE ,  JOONHEE LEE

IPC: H10B43/27 ,  H01L23/528 ,  H10B41/10 ,  H10B41/27 ,  H10B41/40 ,  H10B43/10 ,  H10B43/40

CPC classification number: H10B43/27 ,  H01L23/528 ,  H10B41/10 ,  H10B41/27 ,  H10B41/40 ,  H10B43/10 ,  H10B43/40

Abstract: A semiconductor device includes a substrate including a lower horizontal layer and an upper horizontal layer and having a cell array region and a connection region, an electrode structure including electrodes, which are stacked above the substrate, and which extend from the cell array region to the connection region, a vertical channel structure on the cell array region that penetrates the electrode structure and is connected to the substrate, and a separation structure on the connection region that penetrates the electrode structure. The lower horizontal layer has a first top surface in contact with a first portion of the separation structure, and a second top surface in contact with a second portion of the separation structure, and an inflection point at which a height of the lower horizontal layer is abruptly changed between the first top surface and the second top surface.

公开(公告)号：US20210272981A1

公开(公告)日：2021-09-02

申请号：US17035970

申请日：2020-09-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： SEONG-HUN JEONG ,  BYOUNGIL LEE ,  JOONHEE LEE

IPC: H01L27/11582 ,  H01L27/11556 ,  H01L27/11565 ,  H01L27/11519 ,  H01L27/11526 ,  H01L27/11573 ,  H01L23/528

Abstract: A semiconductor device includes a substrate including a lower horizontal layer and an upper horizontal layer and having a cell array region and a connection region, an electrode structure including electrodes, which are stacked above the substrate, and which extend from the cell array region to the connection region, a vertical channel structure on the cell array region that penetrates the electrode structure and is connected to the substrate, and a separation structure on the connection region that penetrates the electrode structure. The lower horizontal layer has a first top surface in contact with a first portion of the separation structure, and a second top surface in contact with a second portion of the separation structure, and an inflection point at which a height of the lower horizontal layer is abruptly changed between the first top surface and the second top surface.