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：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.