公开(公告)号：US20240065118A1

公开(公告)日：2024-02-22

申请号：US18068821

申请日：2022-12-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hajun SUNG ,  Youngjae Kang ,  Changyup Park ,  Kiyeon Yang ,  Wooyoung Yang ,  Changseung Lee ,  Minwoo Choi

IPC: H10N70/20 ,  H10N70/00 ,  H10B63/00

CPC classification number: H10N70/231 ,  H10N70/861 ,  H10N70/8828 ,  H10N70/8845 ,  H10B63/84

Abstract: Provided are a phase change heterostructure and a phase change memory device including the same. The phase change memory device including the phase change heterostructure may include a plurality of memory cells. Each of the plurality of memory cells may include a first electrode and a second electrode, which may be spaced apart from each other, and a phase change heterostructure between the first electrode and the second electrode. The phase change heterostructure may include a plurality of phase change material layers and a plurality of thermal barrier layers alternately stacked on each other. A material of the plurality of thermal barrier layers have a thermal conductivity lower than a materials of the plurality of phase change material layers.

公开(公告)号：US20230088249A1

公开(公告)日：2023-03-23

申请号：US17717611

申请日：2022-04-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Wooyoung YANG ,  Segab KWON ,  Hajun SUNG ,  Dongho AHN ,  Changseung LEE ,  Minwoo CHOI

IPC: H01L45/00 ,  H01L27/24

Abstract: Provided are a semiconductor device and a semiconductor apparatus. The semiconductor device may include a first electrode; a second electrode spaced apart from the first electrode; and a selection device layer including a chalcogen compound layer between the first electrode and the second electrode and a metal oxide doped in the chalcogen compound layer. In the semiconductor device, by doping the metal oxide, an off-current value (leakage current value) of the selection device layer may be reduced, and static switching characteristics may be implemented.

公开(公告)号：US20230042262A1

公开(公告)日：2023-02-09

申请号：US17522197

申请日：2021-11-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Minwoo CHOI ,  Bonwon KOO ,  Yongyoung PARK ,  Hajun SUNG ,  Dongho AHN ,  Kiyeon YANG ,  Wooyoung YANG ,  Changseung LEE

IPC: H01L27/24 ,  G11C13/00 ,  H01L45/00

Abstract: Provided are a switching device and a memory device including the switching device. The switching device includes first and second electrodes, and a switching material layer provided between the first and second electrodes and including a chalcogenide. The switching material layer includes a core portion and a shell portion covering a side surface of the core portion. The switching layer includes a material having an electrical resistance greater than an electrical resistance of the core portion, for example in at least one of the core portion or the shell portion.

公开(公告)号：US20220406842A1

公开(公告)日：2022-12-22

申请号：US17523363

申请日：2021-11-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hajun SUNG ,  Bonwon KOO ,  Segab KWON ,  Yongyoung PARK ,  Dongho AHN ,  Kiyeon YANG ,  Wooyoung YANG ,  Changseung LEE ,  Minwoo CHOI

IPC: H01L27/24 ,  H01L27/22 ,  C01B19/00

Abstract: Provided are a chalcogenide material, and a device and a memory device each including the same. The chalcogenide material may include: germanium (Ge) as a first component; arsenic (As) as a second component; at least one element selected from selenium (Se) and tellurium (Te) as a third component; and at least one element selected from the elements of Groups 2, 16, and 17 of the periodic table as a fourth component, wherein a content of the first component may be from 5 at % to 30 at %, a content of the second component may be from 20 at % to 40 at %, a content of the third component may be from 25 at % to 75 at %, and a content of the fourth component may be from 0.5 at % to 5 at %.

公开(公告)号：US20220140003A1

公开(公告)日：2022-05-05

申请号：US17244212

申请日：2021-04-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Wooyoung YANG ,  Bonwon KOO ,  Chungman KIM ,  Kwangmin PARK ,  Hajun SUNG ,  Dongho AHN ,  Changseung LEE ,  Minwoo CHOI

IPC: H01L27/24 ,  H01L27/22 ,  H01L45/00 ,  H01L43/02 ,  H01L43/12

Abstract: A chalcogen compound layer exhibiting ovonic threshold switching characteristics, a switching device, a semiconductor device, and/or a semiconductor apparatus including the same are provided. The switching device and/or the semiconductor device may include two or more chalcogen compound layers having different energy band gaps. Alternatively, the switching device and/or semiconductor device may include a chalcogen compound layer having a concentration gradient of an element of boron (B), aluminum (Al), scandium (Sc), manganese (Mn), strontium (Sr), and/or indium (In) in a thickness direction thereof. The switching device and/or a semiconductor device may exhibit stable switching characteristics while having a low off-current value (leakage current value).