公开(公告)号：US20180315770A1

公开(公告)日：2018-11-01

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 ,  H01L29/04 ,  H01L29/792 ,  H01L29/423

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：US20200243558A1

公开(公告)日：2020-07-30

申请号：US16845615

申请日：2020-04-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ji-Hoon CHOI ,  Sunggil KIM ,  Seulye KIM ,  HongSuk KIM ,  Phil Ouk NAM ,  Jaeyoung AHN

IPC: H01L27/11582 ,  H01L27/11524 ,  H01L27/11556 ,  H01L27/1157 ,  H01L21/02 ,  H01L21/306 ,  H01L21/3065

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：US20220139956A1

公开(公告)日：2022-05-05

申请号：US17578965

申请日：2022-01-19

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 ,  H01L21/02 ,  H01L21/306 ,  H01L21/3065 ,  H01L27/11524 ,  H01L27/11556

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：US20190326166A1

公开(公告)日：2019-10-24

申请号：US16460598

申请日：2019-07-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Phil Ouk Nam ,  Jaeyoung AHN ,  Sangsoo LEE

IPC: H01L21/768 ,  H01L27/11556 ,  H01L27/11575 ,  H01L27/11582 ,  H01L23/522 ,  H01L23/528 ,  H01L27/1157 ,  H01L27/11524

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：US20180114794A1

公开(公告)日：2018-04-26

申请号：US15784635

申请日：2017-10-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Byong-hyun JANG ,  Dongchul YOO ,  Woojin JANG ,  Jaeyoung AHN ,  Junkyu YANG

IPC: H01L27/11582 ,  H01L23/528 ,  H01L29/51 ,  H01L27/11568 ,  H01L21/311 ,  H01L21/762 ,  H01L21/28 ,  H01L29/10 ,  H01L29/06

CPC classification number: H01L27/11582 ,  H01L21/28282 ,  H01L21/31111 ,  H01L21/76224 ,  H01L23/528 ,  H01L27/11565 ,  H01L27/11568 ,  H01L27/1157 ,  H01L29/0649 ,  H01L29/1037 ,  H01L29/513 ,  H01L29/518

Abstract: A semiconductor device includes word lines vertically stacked on top of each other on a substrate, insulating patterns between the word lines, a vertical pillar connected to the substrate, and residual sacrificial patterns on the substrate at sides of the word lines. The vertical pillar penetrates the word lines and the insulating patterns. Each of the insulating patterns includes a first portion between the word lines and a second portion extending from the first portion and between the residual sacrificial patterns. A first thickness of the first portion is smaller than a second thickness of the second portion.