公开(公告)号：US20180309052A1

公开(公告)日：2018-10-25

申请号：US16018700

申请日：2018-06-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Shinhee HAN ,  Kiseok SUH ,  KyungTae NAM ,  Woojin KIM ,  Kwangil SHIN ,  Minkyoung JOO ,  Gwanhyeob KOH

IPC: H01L43/12 ,  G11C11/16 ,  H01L27/22 ,  H01L43/02 ,  H01L43/10 ,  H01L43/08

CPC classification number: H01L43/12 ,  G11C11/161 ,  G11C11/1657 ,  G11C11/1659 ,  G11C11/1673 ,  G11C11/1675 ,  H01L27/226 ,  H01L27/228 ,  H01L43/02 ,  H01L43/08 ,  H01L43/10

Abstract: A method of fabricating a magnetic memory device includes forming an interlayered insulating layer on a substrate, forming a landing pad to pass through the interlayered insulating layer, forming a protection insulating layer on the interlayered insulating layer to cover a top surface of the landing pad, forming a bottom electrode to pass through the protection insulating layer and through the interlayered insulating layer, forming a magnetic tunnel junction layer on the protection insulating layer; and patterning the magnetic tunnel junction layer to form a magnetic tunnel junction pattern on the bottom electrode.

公开(公告)号：US20240324240A1

公开(公告)日：2024-09-26

申请号：US18478318

申请日：2023-09-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyungjong JEONG ,  Seung Pil KO ,  Kyounghun RYU ,  Byoungjae BAE ,  Kwangil SHIN

IPC: H10B61/00 ,  H10N50/01 ,  H10N50/20

CPC classification number: H10B61/00 ,  H10N50/01 ,  H10N50/20

Abstract: A magnetic memory device may include a substrate, a lower interconnection line on the substrate, a data storage structure on the lower interconnection line, and a lower contact plug between the lower interconnection line and the data storage structure and extended in a first direction perpendicular to a top surface of the substrate to connect the lower interconnection line to the data storage structure. An upper portion of the lower contact plug may have a first width in a second direction parallel to the top surface of the substrate, and a lower portion of the lower contact plug may have a second width in the second direction. The first width may be larger than the second width.