公开(公告)号：US11587867B2

公开(公告)日：2023-02-21

申请号：US17235984

申请日：2021-04-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jongjin Lee ,  Kyungwook Kim ,  Rakhwan Kim ,  Seungyong Yoo ,  Eun-Ji Jung

IPC: H01L23/522 ,  H01L23/532 ,  H01L29/45

Abstract: Semiconductor devices includes a first interlayer insulating layer, a lower interconnection line in the first interlayer insulating layer, an etch stop layer on the first interlayer insulating layer and the lower interconnection line, a second interlayer insulating layer on the etch stop layer, and an upper interconnection line in the second interlayer insulating layer. The upper interconnection line includes a via portion extending through the etch stop layer and contacting the lower interconnection line. The via portion includes a barrier pattern and a conductive pattern. The barrier pattern includes a first barrier layer between the conductive pattern and the second interlayer insulating layer, and a second barrier layer between the conductive pattern and the lower interconnection line. A resistivity of the first barrier layer is greater than that of the second barrier layer. A nitrogen concentration of the first barrier layer is greater than that of the second barrier layer.

公开(公告)号：US20230020234A1

公开(公告)日：2023-01-19

申请号：US17947282

申请日：2022-09-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seung Yong YOO ,  Jong Jin Lee ,  Rak Hwan Kim ,  Eun-Ji Jung ,  Won Hyuk Hong

IPC: H01L23/528 ,  H01L21/768 ,  H01L23/522 ,  H01L23/532 ,  H01L21/285

Abstract: A semiconductor device includes a first interlayer insulating film disposed on a substrate and having a first trench. A first lower conductive pattern fills the first trench and includes first and second valley areas that are spaced apart from each other in a first direction parallel to an upper surface of the substrate. The first and second valley areas are recessed toward the substrate. A second interlayer insulating film is disposed on the first interlayer insulating film and includes a second trench that exposes at least a portion of the first lower conductive pattern. An upper conductive pattern fills the second trench and includes an upper barrier film and an upper filling film disposed on the upper barrier film. The upper conductive pattern at least partially fills the first valley area.

公开(公告)号：US11450607B2

公开(公告)日：2022-09-20

申请号：US16892649

申请日：2020-06-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seung Yong Yoo ,  Jong Jin Lee ,  Rak Hwan Kim ,  Eun-Ji Jung ,  Won Hyuk Hong

IPC: H01L23/48 ,  H01L23/528 ,  H01L21/768 ,  H01L23/522 ,  H01L23/532 ,  H01L21/285

Abstract: A semiconductor device includes a first interlayer insulating film disposed on a substrate and having a first trench. A first lower conductive pattern fills the first trench and includes first and second valley areas that are spaced apart from each other in a first direction parallel to an upper surface of the substrate. The first and second valley areas are recessed toward the substrate. A second interlayer insulating film is disposed on the first interlayer insulating film and includes a second trench that exposes at least a portion of the first lower conductive pattern. An upper conductive pattern fills the second trench and includes an upper barrier film and an upper filling film disposed on the upper barrier film. The upper conductive pattern at least partially fills the first valley area.

公开(公告)号：US11270944B2

公开(公告)日：2022-03-08

申请号：US16940933

申请日：2020-07-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Wonhyuk Hong ,  Jongjin Lee ,  Rakhwan Kim ,  Eun-Ji Jung

IPC: H01L23/532 ,  H01L23/522 ,  H01L23/528 ,  H01L27/088 ,  H01L27/092 ,  H01L21/8238 ,  H01L21/768 ,  H01L21/8234 ,  H01L27/02

Abstract: A semiconductor device includes transistors on a substrate, a first interlayered insulating layer on the transistors, first and second lower interconnection lines in an upper portion of the first interlayered insulating layer, and first and second vias on the first and second lower interconnection lines, respectively. Each of the first and second lower interconnection lines includes a first metal pattern. The first lower interconnection line further includes a second metal pattern, on the first metal pattern with a metallic material different from the first metal pattern. The second metal pattern is absent in the second lower interconnection line. The second via includes first and second portions, which are in contact with respective top surfaces of the first interlayered insulating layer and the second lower interconnection line, and the lowest level of a bottom surface of the second portion is lower than that of a bottom surface of the first via.

公开(公告)号：US09728604B2

公开(公告)日：2017-08-08

申请号：US15059438

申请日：2016-03-03

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jin-Nam Kim ,  Rak-Hwan Kim ,  Byung-Hee Kim ,  Jong-Min Baek ,  Sang-Hoon Ahn ,  Nae-In Lee ,  Jong-Jin Lee ,  Ho-Yun Jeon ,  Eun-Ji Jung

IPC: H01L29/08 ,  H01L23/532 ,  H01L21/768 ,  H01L23/522 ,  H01L23/528 ,  H01L27/088 ,  H01L27/12

CPC classification number: H01L29/0847 ,  H01L21/7682 ,  H01L21/76834 ,  H01L21/76837 ,  H01L21/76852 ,  H01L21/76862 ,  H01L21/76885 ,  H01L23/5222 ,  H01L23/5283 ,  H01L23/53223 ,  H01L23/53238 ,  H01L23/53266 ,  H01L23/53295 ,  H01L27/0886 ,  H01L27/1211

Abstract: Semiconductor devices may include a diffusion prevention insulation pattern, a plurality of conductive patterns, a barrier layer, and an insulating interlayer. The diffusion prevention insulation pattern may be formed on a substrate, and may include a plurality of protrusions protruding upwardly therefrom. Each of the conductive patterns may be formed on each of the protrusions of the diffusion prevention insulation pattern, and may have a sidewall inclined by an angle in a range of about 80 degrees to about 135 degrees to a top surface of the substrate. The barrier layer may cover a top surface and the sidewall of each if the conductive patterns. The insulating interlayer may be formed on the diffusion prevention insulation pattern and the barrier layer, and may have an air gap between neighboring ones of the conductive patterns.

公开(公告)号：US12199042B2

公开(公告)日：2025-01-14

申请号：US17590238

申请日：2022-02-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Wonhyuk Hong ,  Jongjin Lee ,  Rakhwan Kim ,  Eun-Ji Jung

IPC: H01L23/532 ,  H01L21/768 ,  H01L21/8234 ,  H01L21/8238 ,  H01L23/522 ,  H01L23/528 ,  H01L27/02 ,  H01L27/088 ,  H01L27/092 ,  H01L29/423 ,  H01L29/786

Abstract: A semiconductor device includes transistors on a substrate, a first interlayered insulating layer on the transistors, first and second lower interconnection lines in an upper portion of the first interlayered insulating layer, and first and second vias on the first and second lower interconnection lines, respectively. Each of the first and second lower interconnection lines includes a first metal pattern. The first lower interconnection line further includes a second metal pattern, on the first metal pattern with a metallic material different from the first metal pattern. The second metal pattern is absent in the second lower interconnection line. The second via includes first and second portions, which are in contact with respective top surfaces of the first interlayered insulating layer and the second lower interconnection line, and the lowest level of a bottom surface of the second portion is lower than that of a bottom surface of the first via.

公开(公告)号：US20190189744A1

公开(公告)日：2019-06-20

申请号：US16274350

申请日：2019-02-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jin-Nam Kim ,  Rak-Hwan Kim ,  Byung-Hee Kim ,  Jong-Min Baek ,  Sang-Hoon Ahn ,  Nae-In Lee ,  Jong-Jin Lee ,  Ho-Yun Jeon ,  Eun-Ji Jung

IPC: H01L29/08 ,  H01L23/532 ,  H01L27/12 ,  H01L27/088 ,  H01L21/768 ,  H01L23/528 ,  H01L23/522

CPC classification number: H01L29/0847 ,  H01L21/7682 ,  H01L21/76834 ,  H01L21/76837 ,  H01L21/76852 ,  H01L21/76862 ,  H01L21/76885 ,  H01L23/5222 ,  H01L23/5283 ,  H01L23/53223 ,  H01L23/53238 ,  H01L23/53266 ,  H01L23/53295 ,  H01L27/0886 ,  H01L27/1211

Abstract: Semiconductor devices may include a diffusion prevention insulation pattern, a plurality of conductive patterns, a barrier layer, and an insulating interlayer. The diffusion prevention insulation pattern may be formed on a substrate, and may include a plurality of protrusions protruding upwardly therefrom. Each of the conductive patterns may be formed on each of the protrusions of the diffusion prevention insulation pattern, and may have a sidewall inclined by an angle in a range of about 80 degrees to about 135 degrees to a top surface of the substrate. The barrier layer may cover a top surface and the sidewall of each if the conductive patterns. The insulating interlayer may be formed on the diffusion prevention insulation pattern and the barrier layer, and may have an air gap between neighboring ones of the conductive patterns.

公开(公告)号：US10217820B2

公开(公告)日：2019-02-26

申请号：US15632884

申请日：2017-06-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jin-Nam Kim ,  Rak-Hwan Kim ,  Byung-Hee Kim ,  Jong-Min Baek ,  Sang-Hoon Ahn ,  Nae-In Lee ,  Jong-Jin Lee ,  Ho-Yun Jeon ,  Eun-Ji Jung

IPC: H01L29/08 ,  H01L23/532 ,  H01L21/768 ,  H01L23/522 ,  H01L23/528 ,  H01L27/088 ,  H01L27/12

Abstract: Semiconductor devices may include a diffusion prevention insulation pattern, a plurality of conductive patterns, a barrier layer, and an insulating interlayer. The diffusion prevention insulation pattern may be formed on a substrate, and may include a plurality of protrusions protruding upwardly therefrom. Each of the conductive patterns may be formed on each of the protrusions of the diffusion prevention insulation pattern, and may have a sidewall inclined by an angle in a range of about 80 degrees to about 135 degrees to a top surface of the substrate. The barrier layer may cover a top surface and the sidewall of each if the conductive patterns. The insulating interlayer may be formed on the diffusion prevention insulation pattern and the barrier layer, and may have an air gap between neighboring ones of the conductive patterns.

公开(公告)号：US11967554B2

公开(公告)日：2024-04-23

申请号：US18053487

申请日：2022-11-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jongjin Lee ,  Kyungwook Kim ,  Rakhwan Kim ,  Seungyong Yoo ,  Eun-Ji Jung

IPC: H01L23/522 ,  H01L23/532 ,  H01L29/45

CPC classification number: H01L23/5226 ,  H01L23/53238 ,  H01L23/53252 ,  H01L23/53266 ,  H01L29/45

Abstract: Semiconductor devices includes a first interlayer insulating layer, a lower interconnection line in the first interlayer insulating layer, an etch stop layer on the first interlayer insulating layer and the lower interconnection line, a second interlayer insulating layer on the etch stop layer, and an upper interconnection line in the second interlayer insulating layer. The upper interconnection line includes a via portion extending through the etch stop layer and contacting the lower interconnection line. The via portion includes a barrier pattern and a conductive pattern. The barrier pattern includes a first barrier layer between the conductive pattern and the second interlayer insulating layer, and a second barrier layer between the conductive pattern and the lower interconnection line. A resistivity of the first barrier layer is greater than that of the second barrier layer. A nitrogen concentration of the first barrier layer is greater than that of the second barrier layer.

公开(公告)号：US11942427B2

公开(公告)日：2024-03-26

申请号：US17947282

申请日：2022-09-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seung Yong Yoo ,  Jong Jin Lee ,  Rak Hwan Kim ,  Eun-Ji Jung ,  Won Hyuk Hong

IPC: H01L23/522 ,  H01L21/285 ,  H01L21/768 ,  H01L23/528 ,  H01L23/532

CPC classification number: H01L23/5283 ,  H01L21/28568 ,  H01L21/7685 ,  H01L21/76877 ,  H01L23/5226 ,  H01L23/53209 ,  H01L23/53238 ,  H01L23/53257

Abstract: A semiconductor device includes a first interlayer insulating film disposed on a substrate and having a first trench. A first lower conductive pattern fills the first trench and includes first and second valley areas that are spaced apart from each other in a first direction parallel to an upper surface of the substrate. The first and second valley areas are recessed toward the substrate. A second interlayer insulating film is disposed on the first interlayer insulating film and includes a second trench that exposes at least a portion of the first lower conductive pattern. An upper conductive pattern fills the second trench and includes an upper barrier film and an upper filling film disposed on the upper barrier film. The upper conductive pattern at least partially fills the first valley area.