公开(公告)号：US20210217771A1

公开(公告)日：2021-07-15

申请号：US17195756

申请日：2021-03-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ji-Hoon CHOI ,  Sung-Gil KIM ,  Jung-Hwan KIM ,  Chan-Hyoung KIM ,  Woo-Sung LEE

IPC: H01L27/11582 ,  H01L27/1157 ,  H01L27/11556 ,  H01L27/11524

Abstract: A vertical memory device may include a channel connecting pattern on a substrate, gate electrodes spaced apart from each other in a first direction on the channel connecting pattern, and a channel extending in the first direction through the gate electrodes and the channel connecting pattern. Each of the electrodes may extend in a second direction substantially parallel to an upper surface of the substrate, and the first direction may be substantially perpendicular to the upper surface of the substrate. An end portion of the channel connecting pattern in a third direction substantially parallel to the upper surface of the substrate and substantially perpendicular to the second direction may have an upper surface higher than an upper surface of other portions of the channel connecting pattern except for a portion thereof adjacent the channel.

公开(公告)号：US20190006385A1

公开(公告)日：2019-01-03

申请号：US15987545

申请日：2018-05-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sung-Gil KIM ,  Seul-Ye KIM ,  Hong-suk KIM ,  Phil-Ouk NAM ,  Jae-Young AHN ,  Ji-Hoon CHOI

IPC: H01L27/11582 ,  H01L27/11556 ,  H01L21/311 ,  H01L21/768

CPC classification number: H01L27/11582 ,  H01L21/31111 ,  H01L21/76843 ,  H01L21/7685 ,  H01L21/76877 ,  H01L27/11556 ,  H01L27/11575

Abstract: A semiconductor device may include a plurality of conductive patterns and an insulation pattern. The plurality of conductive patterns may be formed on a substrate. The plurality of conductive patterns may be spaced apart from each other in a vertical direction perpendicular to an upper surface of the substrate. Each of the plurality of conductive patterns may have an extension portion and a step portion. The step portion may be disposed at an edge of the corresponding conductive pattern. The insulation pattern may be formed between the plurality of conductive patterns in the vertical direction. A lower surface and an upper surface of the step portion of each of the plurality of conductive patterns may be bent upwardly.