公开(公告)号：US12289908B2

公开(公告)日：2025-04-29

申请号：US18661171

申请日：2024-05-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seo Jin Jeong ,  Do Hyun Go ,  Seok Hoon Kim ,  Jung Taek Kim ,  Pan Kwi Park ,  Moon Seung Yang ,  Min-Hee Choi ,  Ryong Ha

IPC: H10D30/67 ,  H10D62/13

Abstract: A semiconductor device includes an active pattern including a lower pattern and a plurality of sheet patterns; a gate structure disposed on the lower pattern and surrounding the plurality of sheet patterns; and a source/drain pattern filling a source/drain recess formed on one side of the gate structure. The source/drain pattern includes a first semiconductor pattern extending along the source/drain recess and contacting the lower pattern, a second and third semiconductor patterns sequentially disposed on the first semiconductor pattern, a lower surface of the third semiconductor pattern is disposed below a lower surface of a lowermost sheet pattern, a side surface of the third semiconductor pattern includes a planar portion, and a thickness of the second semiconductor pattern on the lower surface of the third semiconductor pattern is different from a thickness of the second semiconductor pattern on the planar portion of the side surface of the third semiconductor pattern.

公开(公告)号：US20180211959A1

公开(公告)日：2018-07-26

申请号：US15819309

申请日：2017-11-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyun Kwan Yu ,  Hyo Jin Kim ,  Dong Suk Shin ,  Ji Hye Yi ,  Ryong Ha

IPC: H01L27/092

CPC classification number: H01L27/0924 ,  H01L29/0657 ,  H01L29/0847 ,  H01L29/0869 ,  H01L29/0886 ,  H01L29/4238 ,  H01L29/66484 ,  H01L29/66636

Abstract: A semiconductor device includes a substrate, first through fourth gate electrodes, and first through fifth fin active pattern. A first recess which is formed in the substrate between the first and second gate electrodes intersecting the second fin active pattern, is filled with a first source/drain region, and has a first depth in a third direction perpendicular to the first and second directions. A second recess which is formed in the substrate between the third and fourth gate electrodes intersecting the second fin active pattern, is filled with a second source/drain region, and has a second depth in the third direction. A third recess which is formed in the substrate between the second and third gate electrodes intersecting the second fin active pattern, is filled with a third source/drain region, and has a third depth in the third direction. The third depth is greater than the first and second depths.

公开(公告)号：US20250040188A1

公开(公告)日：2025-01-30

申请号：US18588322

申请日：2024-02-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yang Xu ,  Gyeom Kim ,  Pankwi Park ,  Ryong Ha ,  Yoon Heo

IPC: H01L29/423 ,  H01L29/06 ,  H01L29/08 ,  H01L29/66 ,  H01L29/775 ,  H01L29/786

Abstract: A semiconductor device includes a substrate; an active region extending in a first, horizontal, direction on the substrate, and including a first active pattern at a first height above a bottom surface of the substrate in a vertical direction and having a first width in a second, horizontal, direction, a second active pattern having a second width in the second direction different from the first width, and a transition active pattern connecting the first active pattern to the second active pattern; gate structures intersecting the active region each gate structure extending in the second direction across the substrate; source/drain regions disposed on sides of the gate structures, and including a first source/drain region disposed on the first active pattern, a second source/drain region disposed on the second active pattern, and a transition source/drain region disposed on the transition active pattern. Each of the source/drain regions is disposed on the active region and includes a first epitaxial layer having a recessed upper surface and a second epitaxial layer disposed on the first epitaxial layer, at a second height above a bottom surface of the substrate in a vertical direction, a first sidewall thickness of the first epitaxial layer of the first source/drain region in the first direction is different from a second sidewall thickness of the first epitaxial layer of the second source/drain region in the first direction, at the second height, thicknesses of opposing sidewalls of the first epitaxial layer of the transition source/drain region in the first direction are different, and a vertical level of a lowermost end of the second epitaxial layer of the first source/drain region, a vertical level of a lowermost end of the second epitaxial layer of the second source/drain region, and a vertical level of a lowermost end of the second epitaxial layer of the transition source/drain region are different from each other.

公开(公告)号：US11888026B2

公开(公告)日：2024-01-30

申请号：US17467944

申请日：2021-09-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Minhee Choi ,  Seojin Jeong ,  Seokhoon Kim ,  Jungtaek Kim ,  Pankwi Park ,  Moonseung Yang ,  Ryong Ha

IPC: H01L29/06 ,  H01L29/786 ,  H01L29/66

CPC classification number: H01L29/0665 ,  H01L29/6656 ,  H01L29/78618

Abstract: An integrated circuit device includes a fin-type active region on a substrate; at least one nanosheet having a bottom surface facing the fin top; a gate line on the fin-type active region; and a source/drain region on the fin-type active region, adjacent to the gate line, and in contact with the at least one nanosheet, wherein the source/drain region includes a lower main body layer and an upper main body layer, a top surface of the lower main body layer includes a lower facet declining toward the substrate as it extends in a direction from the at least one nanosheet to a center of the source/drain region, and the upper main body layer includes a bottom surface contacting the lower facet and a top surface having an upper facet. With respect to a vertical cross section, the lower facet extends along a corresponding first line and the upper facet extends along a second line that intersects the first line.

公开(公告)号：US10121791B2

公开(公告)日：2018-11-06

申请号：US15819309

申请日：2017-11-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyun Kwan Yu ,  Hyo Jin Kim ,  Dong Suk Shin ,  Ji Hye Yi ,  Ryong Ha

IPC: H01L29/08 ,  H01L29/66 ,  H01L27/092 ,  H01L27/088 ,  H01L29/06 ,  H01L29/423

Abstract: A semiconductor device includes a substrate, first through fourth gate electrodes, and first through fifth fin active pattern. A first recess which is formed in the substrate between the first and second gate electrodes intersecting the second fin active pattern, is filled with a first source/drain region, and has a first depth in a third direction perpendicular to the first and second directions. A second recess which is formed in the substrate between the third and fourth gate electrodes intersecting the second fin active pattern, is filled with a second source/drain region, and has a second depth in the third direction. A third recess which is formed in the substrate between the second and third gate electrodes intersecting the second fin active pattern, is filled with a third source/drain region, and has a third depth in the third direction. The third depth is greater than the first and second depths.

公开(公告)号：US11942551B2

公开(公告)日：2024-03-26

申请号：US17519967

申请日：2021-11-05

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jung Taek Kim ,  Seok Hoon Kim ,  Pan Kwi Park ,  Moon Seung Yang ,  Seo Jin Jeong ,  Min-Hee Choi ,  Ryong Ha

IPC: H01L29/786 ,  H01L29/06 ,  H01L29/423

CPC classification number: H01L29/78618 ,  H01L29/0665 ,  H01L29/42392 ,  H01L29/78696

Abstract: A semiconductor device includes a multi-channel active pattern, a plurality of gate structures on the multi-channel active pattern and spaced apart from each other in a first direction, the plurality of gate structures including a gate electrode that extends in a second direction different from the first direction, a source/drain recess between the adjacent gate structures, and a source/drain pattern on the multi-channel active pattern in the source/drain recess, wherein the source/drain pattern includes: a semiconductor liner layer including silicon-germanium and extending along the source/drain recess, a semiconductor filling layer including silicon-germanium on the semiconductor liner layer, and at least one or more semiconductor insertion layers between the semiconductor liner layer and the semiconductor filling layer, and wherein the at least one or more semiconductor insertion layers have a saddle structure.

公开(公告)号：US11688778B2

公开(公告)日：2023-06-27

申请号：US17141513

申请日：2021-01-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ryong Ha ,  Dongwoo Kim ,  Gyeom Kim ,  Yong Seung Kim ,  Pankwi Park ,  Seung Hun Lee

IPC: H01L29/417 ,  H01L29/423 ,  H01L29/10

CPC classification number: H01L29/41758 ,  H01L29/1033 ,  H01L29/42356

Abstract: A semiconductor device including an active pattern extending in a first direction; a channel pattern on the active pattern and including vertically stacked semiconductor patterns; a source/drain pattern in a recess in the active pattern; a gate electrode on the active pattern and extending in a second direction crossing the first direction, the gate electrode surrounding a top surface, at least one side surface, and a bottom surface of each of the semiconductor patterns; and a gate spacer covering a side surface of the gate electrode and having an opening to the semiconductor patterns, wherein the source/drain pattern includes a buffer layer covering inner sides of the recess, the buffer layer includes an outer side surface and an inner side surface, which are opposite to each other, and each of the outer and inner side surfaces is a curved surface that is convexly curved toward a closest gate electrode.

公开(公告)号：US20230141852A1

公开(公告)日：2023-05-11

申请号：US17866966

申请日：2022-07-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sanggil Lee ,  Jungtaek Kim ,  Dohyun Go ,  Pankwi Park ,  Dongsuk Shin ,  Namkyu Cho ,  Ryong Ha ,  Yang Xu

IPC: H01L29/78 ,  H01L29/08 ,  H01L21/8238 ,  H01L27/092

CPC classification number: H01L29/7848 ,  H01L29/0847 ,  H01L21/823814 ,  H01L27/0922

Abstract: A semiconductor device includes a semiconductor active region having a vertical stack of multiple spaced-apart semiconductor channel regions thereon. A gate electrode extends on the active region and between the spaced-apart channel regions. A source/drain region contacts the spaced-apart channel regions. The source/drain region includes a stack of at least first, second and third epitaxial layers having different electrical characteristics. The first epitaxial layer contacts the active region and each of the spaced-apart channel regions. The second epitaxial layer contacts a first portion of an upper surface of the first epitaxial layer. The third epitaxial layer contacts a second portion of the upper surface of the first epitaxial layer. Each of the first, second and third epitaxial layers includes silicon germanium (SiGe) with unequal levels of germanium (Ge) therein. A level of germanium in the third epitaxial layer exceeds a level of germanium in the second epitaxial layer, which exceeds a level of germanium in the first epitaxial layer.

公开(公告)号：US09812557B2

公开(公告)日：2017-11-07

申请号：US15138234

申请日：2016-04-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyun-Kwan Yu ,  Dong-Suk Shin ,  Woon-Ki Shin ,  Cheol-Woo Park ,  Ryong Ha ,  Han-Jin Lim

IPC: H01L21/28 ,  H01L29/66 ,  H01L21/3213 ,  H01L21/02 ,  H01L29/78

CPC classification number: H01L29/66795 ,  H01L21/02068 ,  H01L21/32134 ,  H01L29/66545 ,  H01L29/7848

Abstract: A method of manufacturing a semiconductor device includes forming an active fin extending longitudinally in a first direction along a surface of a substrate, forming a field insulating layer on the substrate, the field insulating layer covering a part of the active fin, forming a dummy gate electrode on the field insulating layer and the active fin, the dummy gate electrode extending in a second direction different from the first direction, forming a spacer on the sides of the dummy gate electrode, and removing the dummy gate electrode by a wet etching process that includes rinsing the dummy gate electrode intermittently during an etching away of the dummy gate electrode.

公开(公告)号：US12021131B2

公开(公告)日：2024-06-25

申请号：US17460446

申请日：2021-08-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seo Jin Jeong ,  Do Hyun Go ,  Seok Hoon Kim ,  Jung Taek Kim ,  Pan Kwi Park ,  Moon Seung Yang ,  Min-Hee Choi ,  Ryong Ha

IPC: H01L29/423 ,  H01L29/06 ,  H01L29/08 ,  H01L29/417 ,  H01L29/786

CPC classification number: H01L29/42392 ,  H01L29/0665 ,  H01L29/0847 ,  H01L29/41775 ,  H01L29/78696

Abstract: A semiconductor device includes an active pattern including a lower pattern and a plurality of sheet patterns; a gate structure disposed on the lower pattern and surrounding the plurality of sheet patterns; and a source/drain pattern filling a source/drain recess formed on one side of the gate structure. The source/drain pattern includes a first semiconductor pattern extending along the source/drain recess and contacting the lower pattern, a second and third semiconductor patterns sequentially disposed on the first semiconductor pattern, a lower surface of the third semiconductor pattern is disposed below a lower surface of a lowermost sheet pattern, a side surface of the third semiconductor pattern includes a planar portion, and a thickness of the second semiconductor pattern on the lower surface of the third semiconductor pattern is different from a thickness of the second semiconductor pattern on the planar portion of the side surface of the third semiconductor pattern.