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：US10181525B2

公开(公告)日：2019-01-15

申请号：US15374093

申请日：2016-12-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Donghyun Roh ,  Pankwi Park ,  Dongsuk Shin ,  Chulwoong Lee ,  Nae-in Lee

IPC: H01L29/78 ,  H01L21/306 ,  H01L29/66 ,  H01L29/423 ,  H01L29/06 ,  H01L21/762 ,  H01L29/165 ,  H01L21/8234 ,  H01L29/161

Abstract: According to embodiments of the inventive concept, a gate electrode is formed on a substrate, and a first spacer, a second spacer, and a third spacer are sequentially formed on a sidewall of the gate electrode. The substrate is etched to form a recess region. A compressive stress pattern is formed in the recess region. A protective spacer is formed on a sidewall of the third spacer. When the recess region is formed, a lower portion of the second spacer is removed to form a gap region between the first and third spacers. The protective spacer fills the gap region.

公开(公告)号：US20170092769A1

公开(公告)日：2017-03-30

申请号：US15374093

申请日：2016-12-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Donghyun Roh ,  Pankwi Park ,  Dongsuk Shin ,  Chulwoong Lee ,  Naein Lee

IPC: H01L29/78 ,  H01L21/762 ,  H01L21/306 ,  H01L29/66 ,  H01L29/06 ,  H01L29/423

CPC classification number: H01L29/7849 ,  H01L21/30604 ,  H01L21/76224 ,  H01L21/823412 ,  H01L21/823418 ,  H01L21/823468 ,  H01L21/823481 ,  H01L29/0649 ,  H01L29/161 ,  H01L29/165 ,  H01L29/42376 ,  H01L29/66477 ,  H01L29/66553 ,  H01L29/7848

Abstract: According to embodiments of the inventive concept, a gate electrode is formed on a substrate, and a first spacer, a second spacer, and a third spacer are sequentially formed on a sidewall of the gate electrode. The substrate is etched to form a recess region. A compressive stress pattern is formed in the recess region. A protective spacer is formed on a sidewall of the third spacer. When the recess region is formed, a lower portion of the second spacer is removed to form a gap region between the first and third spacers. The protective spacer fills the gap region.

公开(公告)号：US12224357B2

公开(公告)日：2025-02-11

申请号：US17804102

申请日：2022-05-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jinyeong Joe ,  Dongchan Suh ,  Sungkeun Lim ,  Seokhoon Kim ,  Pankwi Park ,  Dongsuk Shin

IPC: H01L29/786 ,  H01L29/06 ,  H01L29/423 ,  H01L29/66 ,  H01L29/78

Abstract: A semiconductor device includes a first active region, a second active region spaced apart from the first active region, a plurality of first channel layers disposed on the first active region, and a second channel layer disposed on the second active region. The semiconductor device further includes a first gate structure intersecting the first active region and the first channel layers, a second gate structure intersecting the second active region and the second channel layer, a first source/drain region disposed on the first active region and contacting the plurality of first channel layers, and a second source/drain region and contacting the second channel layer. The plurality of first channel layers includes a first uppermost channel layer and first lower channel layers disposed below the first uppermost channel layer, and the first uppermost channel layer includes a material that is different from a material included in the first lower channel layers.

公开(公告)号：US11996443B2

公开(公告)日：2024-05-28

申请号：US17729676

申请日：2022-04-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sungkeun Lim ,  Unki Kim ,  Yuyeong Jo ,  Yihwan Kim ,  Jinbum Kim ,  Pankwi Park ,  Ilgyou Shin ,  Seunghun Lee

IPC: H01L29/06 ,  H01L21/02 ,  H01L29/66 ,  H01L29/78

CPC classification number: H01L29/0638 ,  H01L21/0245 ,  H01L29/66545 ,  H01L29/66795 ,  H01L29/785

Abstract: A semiconductor device includes; an active region; an isolation region defining the active region; a barrier layer on the active region; an upper semiconductor layer on the barrier layer; and a gate structure covering an upper surface, a lower surface, and side surfaces of the upper semiconductor layer in a first direction. The first direction is a direction parallel to an upper surface of the active region, and the barrier layer is disposed between the gate structure and the active region.

公开(公告)号：US11948942B2

公开(公告)日：2024-04-02

申请号：US18122253

申请日：2023-03-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Minhee Choi ,  Keunhwi Cho ,  Myunggil Kang ,  Seokhoon Kim ,  Dongwon Kim ,  Pankwi Park ,  Dongsuk Shin

IPC: H01L29/08 ,  H01L21/02 ,  H01L27/092 ,  H01L29/06 ,  H01L29/161 ,  H01L29/167 ,  H01L29/423 ,  H01L29/66 ,  H01L29/775 ,  H01L29/78

CPC classification number: H01L27/0924 ,  H01L21/02532 ,  H01L21/02579 ,  H01L21/0262 ,  H01L29/0673 ,  H01L29/0847 ,  H01L29/161 ,  H01L29/167 ,  H01L29/42392 ,  H01L29/66439 ,  H01L29/66795 ,  H01L29/775 ,  H01L29/7851

Abstract: An integrated circuit device includes a fin-type active area along a first horizontal direction on a substrate, a device isolation layer on opposite sidewalls of the fin-type active area, a gate structure along a second horizontal direction crossing the first horizontal direction, the gate structure being on the fin-type active area and on the device isolation layer, and a source/drain area on the fin-type active area, the source/drain area being adjacent to the gate structure, and including an outer blocking layer, an inner blocking layer, and a main body layer sequentially stacked on the fin-type active area, and each of the outer blocking layer and the main body layer including a Si1−xGex layer, where x≠0, and the inner blocking layer including a Si layer.

公开(公告)号：US20240105776A1

公开(公告)日：2024-03-28

申请号：US18229349

申请日：2023-08-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Namkyu Cho ,  Seokhoon Kim ,  Jungtaek Kim ,  Pankwi Park ,  Seojin Jeong

IPC: H01L29/08 ,  H01L21/02 ,  H01L29/06 ,  H01L29/161 ,  H01L29/423 ,  H01L29/66 ,  H01L29/775

CPC classification number: H01L29/0847 ,  H01L21/02532 ,  H01L21/02658 ,  H01L29/0673 ,  H01L29/161 ,  H01L29/42392 ,  H01L29/66439 ,  H01L29/66545 ,  H01L29/775

Abstract: A semiconductor device includes a substrate including an active region extending in a first direction, a gate structure intersecting the active region on the substrate and extending in a second direction, where the active region includes a recessed region at at least one side of the gate structure, a plurality of channel layers on the active region, spaced apart from each other in a third direction that is substantially perpendicular to an upper surface of the substrate, and at least partially surrounded by the gate structure and a source/drain region in the recessed region of the active region and connected to the plurality of channel layers.

公开(公告)号：US20230317725A1

公开(公告)日：2023-10-05

申请号：US18332298

申请日：2023-06-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Keomyoung Shin ,  Pankwi Park ,  Seunghun Lee

IPC: H01L29/08 ,  H01L29/06 ,  H01L29/26 ,  H01L29/78 ,  H01L27/088

CPC classification number: H01L27/0886 ,  H01L29/0673 ,  H01L29/0847 ,  H01L29/26 ,  H01L29/785

Abstract: An integrated circuit (IC) device includes a fin-type active region extending lengthwise in a first direction, a plurality of nanosheets overlapping each other in a second direction on a fin top surface of the fin-type active region, and a source/drain region on the fin-type active region and facing the plurality of nanosheets in the first direction. The plurality of nanosheets include a first nanosheet, which is closest to the fin top surface of the fin-type active region and has a shortest length in the first direction, from among the plurality of nanosheets. The source/drain region includes a source/drain main region and a first source/drain protruding region protruding from the source/drain main region. The first source/drain protruding region protrudes from the source/drain main region toward the first nanosheet and overlaps portions of the plurality of nanosheets in the second direction.

公开(公告)号：US20220254878A1

公开(公告)日：2022-08-11

申请号：US17729676

申请日：2022-04-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sungkeun Lim ,  Unki Kim ,  Yuyeong Jo ,  Yihwan Kim ,  Jinbum Kim ,  Pankwi Park ,  Ilgyou Shin ,  Seunghun Lee

IPC: H01L29/06 ,  H01L29/66 ,  H01L29/78 ,  H01L21/02

Abstract: A semiconductor device includes; an active region; an isolation region defining the active region; a barrier layer on the active region; an upper semiconductor layer on the barrier layer; and a gate structure covering an upper surface, a lower surface, and side surfaces of the upper semiconductor layer in a first direction. The first direction is a direction parallel to an upper surface of the active region, and the barrier layer is disposed between the gate structure and the active region.

公开(公告)号：US20220190109A1

公开(公告)日：2022-06-16

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

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.