公开(公告)号：US20180097006A1

公开(公告)日：2018-04-05

申请号：US15480983

申请日：2017-04-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sung Gil Kim ,  Ji-Hoon Choi ,  Dongkyum Kim ,  Jintae Noh ,  Seulye Kim ,  Hong Suk Kim ,  Phil Ouk Nam ,  Jaeyoung Ahn

IPC: H01L27/11556 ,  H01L29/08 ,  H01L27/11582 ,  H01L29/10

CPC classification number: H01L27/11556 ,  H01L27/1157 ,  H01L27/11582 ,  H01L29/0847 ,  H01L29/1037 ,  H01L29/42324 ,  H01L29/4234 ,  H01L29/42364

Abstract: A semiconductor memory device may include: a stacking structure including a plurality of insulating layers and a plurality of gate electrodes alternately stacked on a substrate; a lower semiconductor pattern that protrudes from the top of the substrate; a vertical insulating pattern that extends in a vertical direction from the substrate and penetrates the stacking structure; and a vertical channel pattern on the inner surface of the vertical insulating pattern and contacting the lower semiconductor pattern, wherein an upper part of the lower semiconductor pattern includes a recess region including a curve-shaped profile, and in the recess region, the outer surface of a lower part of the vertical channel pattern contacts the lower semiconductor pattern along a curve of the recess region.

公开(公告)号：US09853044B2

公开(公告)日：2017-12-26

申请号：US14995586

申请日：2016-01-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ji-Hoon Choi ,  Dong-Kyum Kim ,  Jin-Gyun Kim ,  Su-Jin Shin ,  Sang-Hoon Lee ,  Ki-Hyun Hwang

IPC: H01L27/11582 ,  H01L29/792 ,  H01L21/28 ,  H01L27/1157 ,  H01L21/02

CPC classification number: H01L27/11582 ,  H01L21/02164 ,  H01L21/0217 ,  H01L21/02236 ,  H01L21/02252 ,  H01L21/02255 ,  H01L21/28008 ,  H01L21/28282 ,  H01L27/1157 ,  H01L29/7926

Abstract: A semiconductor device is provided. The semiconductor includes a plurality of interlayer insulating layers and a plurality of gate electrodes alternately stacked in a first direction on a substrate. The plurality of interlayer insulating layers and the plurality of gate electrodes constitute a side surface extended in the first direction. A gate dielectric layer is disposed on the side surface. A channel pattern is disposed on the gate dielectric layer. The gate dielectric layer includes a protective pattern, a charge trap layer, and a tunneling layer. The protective pattern includes a portion disposed on a corresponding gate electrode of the plurality of gate electrodes. The charge trap layer is disposed on the protective pattern. The tunneling layer is disposed between the charge trap layer and the channel pattern. The protective pattern is denser than the charge trap layer.