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公开(公告)号:US20220069011A1
公开(公告)日:2022-03-03
申请号:US17209660
申请日:2021-03-23
发明人: Dongho AHN , Segab KWON , Chungman KIM , Kwangmin PARK , Zhe WU , Seunggeun YU , Wonjun LEE , Jabin LEE , Jinwoo LEE
摘要: A semiconductor device includes a semiconductor substrate, a peripheral device on the semiconductor substrate, a lower insulating structure on the semiconductor substrate and covering the peripheral device, a first conductive line on the lower insulating structure, a memory cell structure on the first conductive line, and a second conductive line on the memory cell structure. The memory cell structure may include an information storage material pattern and a selector material pattern on the lower insulating structure in a vertical direction. The selector material pattern may include a first selector material layer including a first material and a second selector material layer including a second material. The second selector material layer may have a threshold voltage drift higher than that of the first material. The second selector material layer may have a second width narrower than a first width of the first selector material layer.
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公开(公告)号:US20220406844A1
公开(公告)日:2022-12-22
申请号:US17568866
申请日:2022-01-05
发明人: Chungman KIM , Bonwon KOO , Dongho AHN , Kiyeon YANG , Zhe WU , Chang Seung LEE
摘要: A resistive memory device including a resistive memory pattern; and a selection element pattern electrically connected to the resistive memory pattern, the selection element pattern including a chalcogenide switching material and at least one metallic material, the chalcogenide switching material including germanium, arsenic, and selenium, and the at least one metallic material including aluminum, strontium, or indium, wherein the selection element pattern includes an inhomogeneous material layer in which content of the at least one metallic material in the selection element pattern is variable according to a position within the selection element pattern.
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公开(公告)号:US20220149114A1
公开(公告)日:2022-05-12
申请号:US17362075
申请日:2021-06-29
发明人: Kiyeon YANG , Bonwon KOO , Segab KWON , Chungman KIM , Yongyoung PARK , Dongho AHN , Seunggeun YU , Changseung LEE
摘要: Provided are a chalcogen compound having ovonic threshold switching characteristics, and a switching device, a semiconductor device, and/or a semiconductor apparatus which include the chalcogen compound. The chalcogen compound includes five or more elements and may have stable switching characteristics with a low off-current value (leakage current value). The chalcogen compound includes: selenium (Se) and tellurium (Te); a first element comprising at least one of indium (In), aluminum (Al), strontium (Sr), and calcium (Ca); and a second element including germanium (Ge) and/or tin (Sn), and may further include at least one of arsenic (As), antimony (Sb), and bismuth (Bi).
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4.
公开(公告)号:US20240177771A1
公开(公告)日:2024-05-30
申请号:US18334790
申请日:2023-06-14
发明人: Soyeon CHOI , Zhe WU , Chungman KIM , Seunggeun YU , Jabin LEE
IPC分类号: G11C13/00
CPC分类号: G11C13/0069 , G11C13/0004 , G11C13/004
摘要: An operating method of a self-selecting memory device, includes an operation of applying a first write pulse corresponding to a first state to a first memory cell during a first pulse width, and an operation of applying a second write pulse corresponding to a second state to a second memory cell during a second pulse width, wherein the first write pulse and the second write pulse have substantially opposite polarities, wherein the first pulse width is longer than the second pulse width.
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5.
公开(公告)号:US20240032308A1
公开(公告)日:2024-01-25
申请号:US18478776
申请日:2023-09-29
发明人: Wooyoung YANG , Bonwon KOO , Chungman KIM , Kwangmin PARK , Hajun SUNG , Dongho AHN , Changseung LEE , Minwoo CHOI
CPC分类号: H10B63/24 , G11C13/0004 , H10B61/10 , H10B63/84 , H10N50/01 , H10N50/80 , H10N70/24 , H10N70/25 , H10N70/063 , H10N70/231 , H10N70/8413 , H10N70/8825 , H10N70/8828 , H10N70/8833 , H10N70/8836
摘要: 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).
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公开(公告)号:US20230301218A1
公开(公告)日:2023-09-21
申请号:US18119970
申请日:2023-03-10
发明人: Wonjun PARK , Chungman KIM , Dongho AHN , Changyup PARK
CPC分类号: H10N70/8828 , H10B63/80 , H10N70/063 , H10N70/231 , H10N70/841
摘要: A variable resistance memory device includes a first conductive line extending on a substrate in a first horizontal direction; a second conductive line extending on the first conductive line in a second horizontal direction perpendicular to the first horizontal direction; and a memory cell at an intersection between the first conductive line and the second conductive line, the memory cell including a selection element and a variable resistor, wherein the variable resistor includes a first variable resistance layer having a senary component represented by CaGedSbcTedAeXf, in which A and X are each a group 13 element different from each other, and 1≤a≤18, 13≤b≤26, 15≤c≤30, 35≤d≤55, 0.1≤e≤8, 0.1≤f≤8, and a+b+c+d+e+f=100.
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7.
公开(公告)号:US20220140003A1
公开(公告)日:2022-05-05
申请号:US17244212
申请日:2021-04-29
发明人: Wooyoung YANG , Bonwon KOO , Chungman KIM , Kwangmin PARK , Hajun SUNG , Dongho AHN , Changseung LEE , Minwoo CHOI
摘要: 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).
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