公开(公告)号：US20240215225A1

公开(公告)日：2024-06-27

申请号：US18391835

申请日：2023-12-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Teawon Kim ,  Seohee Park ,  Yongsuk Tak ,  Minkyung Kang ,  Joonnyung Heo

IPC: H10B12/00 ,  H01L21/764

CPC classification number: H10B12/482 ,  H01L21/764 ,  H10B12/0335 ,  H10B12/315

Abstract: A semiconductor device includes a line structure on the lower structure and including a conductive pattern and an insulating capping pattern on the conductive pattern, a contact structure including a lower portion adjacent to a side surface of the line structure and an upper portion on the lower portion, a spacer structure between a side surface of the lower portion of the contact structure and the side surface of the line structure, an insulating separation pattern on the spacer structure, and a protective layer between the upper portion of the contact structure and the insulating separation pattern. The spacer structure includes an internal spacer, an external spacer, and an air gap between the internal spacer and the external spacer. Regions of the internal spacer and the external spacer exposed by the air gap include an oxide. The insulating separation pattern seals at least a portion of an upper portion of the air gap.

公开(公告)号：US20240081047A1

公开(公告)日：2024-03-07

申请号：US18351422

申请日：2023-07-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Teawon Kim ,  Seohee Park ,  Yongsuk Tak ,  Minkyung Kang ,  Joonnyung Heo

IPC: H10B12/00

CPC classification number: H10B12/482 ,  H10B12/02 ,  H10B12/315 ,  H10B12/34

Abstract: A semiconductor device includes a conductive pattern and a spacer structure disposed on a side surface of the conductive pattern. The spacer structure includes an inner spacer in contact with the side surface of the conductive pattern, an outer spacer spaced apart from the side surface of the conductive pattern, and an air gap disposed between the inner spacer and the outer spacer. The inner spacer includes an inner oxidized region exposed by the air gap. A concentration of oxygen in the inner oxidized region has a gradient in which the oxygen concentration decreases in a direction away from the air gap.