公开(公告)号：US10651191B2

公开(公告)日：2020-05-12

申请号：US15864410

申请日：2018-01-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ji-Hoon Choi ,  Sunggil Kim ,  Seulye Kim ,  HongSuk Kim ,  Phil Ouk Nam ,  Jaeyoung Ahn

IPC: H01L27/11582 ,  H01L27/1157 ,  H01L27/11573 ,  H01L27/11575 ,  H01L29/792 ,  H01L29/423 ,  H01L29/04 ,  H01L27/11565 ,  H01L29/51

Abstract: A semiconductor device may include a substrate, an electrode structure including electrodes stacked on the substrate, an upper semiconductor pattern penetrating at least a portion of the electrode structure, and a lower semiconductor pattern between the substrate and the upper semiconductor pattern. The upper semiconductor pattern includes a gap-filling portion and a sidewall portion extending from the gap-filling portion in a direction away from the substrate, the lower semiconductor pattern includes a concave top surface, the gap-filling portion fills a region enclosed by the concave top surface, a top surface of the gap-filling portion has a rounded shape that is deformed toward the substrate, and a thickness of the sidewall portion is less than a thickness of the gap-filling portion.

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：US09130054B2

公开(公告)日：2015-09-08

申请号：US13800872

申请日：2013-03-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Byong-hyun Jang ,  Juhyung Kim ,  Woonkyung Lee ,  Jaegoo Lee ,  Chaeho Kim ,  Junkyu Yang ,  Phil Ouk Nam ,  Jaeyoung Ahn ,  Kihyun Hwang

IPC: H01L21/20 ,  H01L29/792 ,  H01L29/66 ,  H01L27/115

CPC classification number: H01L29/792 ,  H01L23/528 ,  H01L27/1157 ,  H01L27/11582 ,  H01L29/045 ,  H01L29/1037 ,  H01L29/42364 ,  H01L29/511 ,  H01L29/66833 ,  H01L29/7926 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A semiconductor memory device and a method of fabricating the same. The device includes a plurality of gates vertically stacked on a top surface of a substrate with an epitaxial layer formed in the substrate, a vertical channel vertically penetrating the gates to be electrically connected to the epitaxial layer, and a memory layer provided between the vertical channel and the gates. The epitaxial layer has a top surface positioned at a level between a bottom surface of the lowermost one of the gates and the top surface of the substrate.

Abstract translation: 一种半导体存储器件及其制造方法。 该器件包括垂直堆叠在衬底的顶表面上的多个栅极，该衬底的顶表面上形成有在该衬底中形成的外延层，垂直穿过该栅极的垂直沟道以与该外延层电连接;以及存储层，设置在该垂直沟道 和大门。 外延层具有位于最下面一个栅极的底表面和基板的顶表面之间的高度的顶表面。

公开(公告)号：US10395982B2

公开(公告)日：2019-08-27

申请号：US15805560

申请日：2017-11-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Phil Ouk Nam ,  Jaeyoung Ahn ,  Sangsoo Lee

IPC: H01L21/768 ,  H01L23/522 ,  H01L23/528 ,  H01L27/1157 ,  H01L27/11524 ,  H01L27/11556 ,  H01L27/11582 ,  G11C16/04 ,  G11C16/08 ,  G11C16/30

Abstract: Provided is a semiconductor device including a lower layer structure on a substrate, the lower layer structure having different thicknesses on first and second regions of the substrate, the lower layer structure including an electrode layer at a top and an insulating layer thereunder, an etch stop layer on the lower layer structure, an upper layer structure on the etch stop layer, the etch stop layer having an etch selectivity to the upper and lower layer structures, first and second contact plugs filling first and second openings defined in the upper layer structure and the etch stop layer on the first and second regions, respectively, and contacting corresponding electrode layers of the lower layer structure, respectively, such that one of the first and second contact plugs downwardly extends further with respect to a bottom of the etch stop layer than the other one of the first and second contact plugs.

公开(公告)号：US20190206886A1

公开(公告)日：2019-07-04

申请号：US16298247

申请日：2019-03-11

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 ,  H01L29/10 ,  H01L27/1157 ,  H01L27/11582 ,  H01L29/08

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：US20190013237A1

公开(公告)日：2019-01-10

申请号：US15805560

申请日：2017-11-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Phil Ouk Nam ,  Jaeyoung Ahn ,  Sangsoo Lee

IPC: H01L21/768 ,  H01L27/11524 ,  H01L27/11556 ,  H01L27/1157 ,  H01L27/11582 ,  H01L23/522 ,  H01L23/528

CPC classification number: H01L21/76829 ,  G11C16/0483 ,  G11C16/08 ,  G11C16/30 ,  H01L21/76816 ,  H01L21/76877 ,  H01L23/5226 ,  H01L23/5283 ,  H01L27/11524 ,  H01L27/11556 ,  H01L27/11565 ,  H01L27/1157 ,  H01L27/11575 ,  H01L27/11582

Abstract: Provided is a semiconductor device including a lower layer structure on a substrate, the lower layer structure having different thicknesses on first and second regions of the substrate, the lower layer structure including an electrode layer at a top and an insulating layer thereunder, an etch stop layer on the lower layer structure, an upper layer structure on the etch stop layer, the etch stop layer having an etch selectivity to the upper and lower layer structures, first and second contact plugs filling first and second openings defined in the upper layer structure and the etch stop layer on the first and second regions, respectively, and contacting corresponding electrode layers of the lower layer structure, respectively, such that one of the first and second contact plugs downwardly extends further with respect to a bottom of the etch stop layer than the other one of the first and second contact plugs.

公开(公告)号：US09653565B2

公开(公告)日：2017-05-16

申请号：US14865078

申请日：2015-09-25

Applicant: Samsung Electronics Co., Ltd

Inventor： Byong-hyun Jang ,  Dongchul Yoo ,  Jaeyoung Ahn ,  Hunhyeong Lim

IPC: H01L29/49 ,  H01L27/11582

CPC classification number: H01L29/495 ,  H01L27/11582

Abstract: A three dimensional semiconductor memory device includes a vertical channel structure extending in a vertical direction on a substrate; interlayer insulating layers surrounding the vertical channel structure and being stacked in the vertical direction on the substrate, gate electrodes surrounding the vertical channel structure and being disposed between the interlayer insulating layers, corners of the gate electrodes adjacent to the vertical channel structure being rounded, and auxiliary gate insulating patterns disposed between the gate electrodes and the vertical channel structure, wherein a side surface of the auxiliary gate insulating pattern is substantially coplanar with a side surface of the interlayer insulating layer in the vertical direction on the substrate.