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公开(公告)号:US09529714B2
公开(公告)日:2016-12-27
申请号:US14559509
申请日:2014-12-03
申请人: Yang-Kon Kim , Bo-Mi Lee , Won-Joon Choi , Guk-Cheon Kim , Daisuke Watanabe , Makoto Nagamine , Young-Min Eeh , Koji Ueda , Toshihiko Nagase , Kazuya Sawada
发明人: Yang-Kon Kim , Bo-Mi Lee , Won-Joon Choi , Guk-Cheon Kim , Daisuke Watanabe , Makoto Nagamine , Young-Min Eeh , Koji Ueda , Toshihiko Nagase , Kazuya Sawada
CPC分类号: G06F12/0802 , G11C11/161 , G11C11/1675 , H01L43/08
摘要: An electronic device includes a semiconductor memory, and the semiconductor memory includes a first magnetic layer having a variable magnetization direction; a second magnetic layer having a pinned magnetization direction; and a tunnel barrier layer interposed between the first magnetic layer and the second magnetic layer, wherein the second magnetic layer includes a ferromagnetic material with molybdenum (Mo) added thereto.
摘要翻译: 电子设备包括半导体存储器,并且半导体存储器包括具有可变磁化方向的第一磁性层; 具有钉扎磁化方向的第二磁性层; 以及插入在所述第一磁性层和所述第二磁性层之间的隧道势垒层,其中所述第二磁性层包括添加有钼(Mo)的铁磁材料。
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公开(公告)号:US09461240B2
公开(公告)日:2016-10-04
申请号:US14814158
申请日:2015-07-30
申请人: Kazuya Sawada , Toshihiko Nagase , Youngmin Eeh , Koji Ueda , Daisuke Watanabe , Makoto Nagamine
发明人: Kazuya Sawada , Toshihiko Nagase , Youngmin Eeh , Koji Ueda , Daisuke Watanabe , Makoto Nagamine
CPC分类号: H01L43/08 , H01L27/228 , H01L43/10
摘要: According to one embodiment, a magnetoresistive memory device includes a first magnetic layer, a second magnetic layer, a nonmagnetic layer provided between the first magnetic layer and the second magnetic layer, and a third magnetic layer provided on a side of the first or second magnetic layer opposite to the nonmagnetic layer. The third magnetic layer has a multilayer film having an artificial lattice structure, and the third magnetic layer is partly microcrystalline or amorphous.
摘要翻译: 根据一个实施例,磁阻存储器件包括第一磁性层,第二磁性层,设置在第一磁性层和第二磁性层之间的非磁性层,以及设置在第一或第二磁性层的一侧的第三磁性层 层与非磁性层相对。 第三磁性层具有具有人造晶格结构的多层膜,第三磁性层是部分微晶或无定形的。
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公开(公告)号:US20160163968A1
公开(公告)日:2016-06-09
申请号:US15041722
申请日:2016-02-11
申请人: Koji UEDA , Toshihiko NAGASE , Kazuya SAWADA , Youngmin EEH , Daisuke WATANABE , Hiroaki YODA
发明人: Koji UEDA , Toshihiko NAGASE , Kazuya SAWADA , Youngmin EEH , Daisuke WATANABE , Hiroaki YODA
CPC分类号: H01L43/10 , H01L27/228 , H01L43/02 , H01L43/08
摘要: According to one embodiment, a magnetoresistive element comprises a first magnetic layer, a second magnetic layer, a first nonmagnetic layer, a second nonmagnetic layer, and a third magnetic layer. The first magnetic layer has a variable magnetization direction. The second magnetic layer has an invariable magnetization direction and includes a nonmagnetic material film and a magnetic material film. The first nonmagnetic layer is arranged between the first magnetic layer and the second magnetic layer. The second nonmagnetic layer is arranged on a surface of the second magnetic layer. The third magnetic layer is arranged on a surface of the second nonmagnetic layer. The second nonmagnetic layer is in contact with the nonmagnetic material film included in the second magnetic layer.
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公开(公告)号:US09293695B2
公开(公告)日:2016-03-22
申请号:US14160166
申请日:2014-01-21
申请人: Koji Ueda , Toshihiko Nagase , Kazuya Sawada , Youngmin Eeh , Daisuke Watanabe , Hiroaki Yoda
发明人: Koji Ueda , Toshihiko Nagase , Kazuya Sawada , Youngmin Eeh , Daisuke Watanabe , Hiroaki Yoda
CPC分类号: H01L43/10 , H01L27/228 , H01L43/02 , H01L43/08
摘要: According to one embodiment, a magnetoresistive element comprises a first magnetic layer, a second magnetic layer, a first nonmagnetic layer, a second nonmagnetic layer, and a third magnetic layer. The first magnetic layer has a variable magnetization direction. The second magnetic layer has an invariable magnetization direction and includes a nonmagnetic material film and a magnetic material film. The first nonmagnetic layer is arranged between the first magnetic layer and the second magnetic layer. The second nonmagnetic layer is arranged on a surface of the second magnetic layer. The third magnetic layer is arranged on a surface of the second nonmagnetic layer. The second nonmagnetic layer is in contact with the nonmagnetic material film included in the second magnetic layer.
摘要翻译: 根据一个实施例,磁阻元件包括第一磁性层,第二磁性层,第一非磁性层,第二非磁性层和第三磁性层。 第一磁性层具有可变的磁化方向。 第二磁性层具有不变的磁化方向,并且包括非磁性材料膜和磁性材料膜。 第一非磁性层布置在第一磁性层和第二磁性层之间。 第二非磁性层布置在第二磁性层的表面上。 第三磁性层布置在第二非磁性层的表面上。 第二非磁性层与包含在第二磁性层中的非磁性材料膜接触。
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公开(公告)号:US09184374B2
公开(公告)日:2015-11-10
申请号:US13963762
申请日:2013-08-09
申请人: Kazuya Sawada , Toshihiko Nagase , Youngmin Eeh , Koji Ueda , Daisuke Watanabe , Masahiko Nakayama , Tadashi Kai , Hiroaki Yoda
发明人: Kazuya Sawada , Toshihiko Nagase , Youngmin Eeh , Koji Ueda , Daisuke Watanabe , Masahiko Nakayama , Tadashi Kai , Hiroaki Yoda
摘要: According to one embodiment, a magnetoresistive element includes first, second and third magnetic layers, and first and second nonmagnetic layers. The third magnetic layer has stack layers including a first stack layer close to the second magnetic layer, and a second stack layer far from the second magnetic layer. Each of the first and second stack layers includes a first layer made of a ferromagnetic material and a second layer made of a nonmagnetic material, and a first ratio of a film thickness of the first layer to that of the second layer in the first stack layer is higher than a second ratio of a film thickness of the first layer to that of the second layer in the second stack layer.
摘要翻译: 根据一个实施例,磁阻元件包括第一,第二和第三磁性层以及第一和第二非磁性层。 第三磁性层具有包括靠近第二磁性层的第一堆叠层和远离第二磁性层的第二堆叠层的堆叠层。 第一和第二堆叠层中的每一个包括由铁磁材料制成的第一层和由非磁性材料制成的第二层,并且第一层的第一层的膜厚度与第二层的膜厚度的第一比率 高于第二层的第一层的膜厚度与第二层的膜厚度的第二比率。
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公开(公告)号:US20150069542A1
公开(公告)日:2015-03-12
申请号:US14157356
申请日:2014-01-16
申请人: Makoto NAGAMINE , Youngmin EEH , Koji UEDA , Daisuke WATANABE , Kazuya SAWADA , Toshihiko NAGASE
发明人: Makoto NAGAMINE , Youngmin EEH , Koji UEDA , Daisuke WATANABE , Kazuya SAWADA , Toshihiko NAGASE
CPC分类号: H01L43/08 , G11B5/3909 , H01L43/10 , H01L43/12
摘要: According to one embodiment, a method of manufacturing a magneto-resistive element, includes forming a first ferromagnetic layer on a substrate, forming a tunnel barrier layer on the first ferromagnetic layer, forming a second ferromagnetic layer containing B on the tunnel barrier layer, exposing a laminate of the first ferromagnetic layer, the tunnel barrier layer, and the second ferromagnetic layer under a pressurized atmosphere, and annealing the laminate while being exposed to the pressurized atmosphere, thereby promoting the orientation of the second magnetic layer.
摘要翻译: 根据一个实施例,制造磁阻元件的方法包括在衬底上形成第一铁磁层,在第一铁磁层上形成隧道势垒层,在隧道势垒层上形成含有B的第二铁磁层, 在加压气氛下的第一铁磁层,隧道势垒层和第二铁磁层的层叠体,并且在暴露于加压气氛的同时退火层叠体,从而促进第二磁性层的取向。
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公开(公告)号:US20150061053A1
公开(公告)日:2015-03-05
申请号:US14203198
申请日:2014-03-10
申请人: Masahiko NAKAYAMA , Tadashi KAI , Masaru TOKO , Toshihiko NAGASE , Hiroaki YODA
发明人: Masahiko NAKAYAMA , Tadashi KAI , Masaru TOKO , Toshihiko NAGASE , Hiroaki YODA
CPC分类号: H01L43/10 , H01L27/222 , H01L27/228 , H01L27/2463 , H01L29/82 , H01L43/08 , H01L43/12 , H01L45/06
摘要: According to one embodiment, a magnetoresistive element is disclosed. The element includes a first magnetic film, a second magnetic film, and a first nonmagnetic layer formed between the first magnetic film and the second magnetic film. The second magnetic film includes a first magnetic layer formed on a side of the first nonmagnetic layer, a second magnetic layer formed on a side opposite to the first nonmagnetic layer, and a second nonmagnetic layer formed between the first magnetic layer and the second magnetic layer and containing TiN.
摘要翻译: 根据一个实施例,公开了一种磁阻元件。 元件包括第一磁性膜,第二磁性膜和形成在第一磁性膜和第二磁性膜之间的第一非磁性层。 第二磁性膜包括形成在第一非磁性层一侧的第一磁性层,形成在与第一非磁性层相反的一侧的第二磁性层和形成在第一磁性层和第二磁性层之间的第二非磁性层 并含有TiN。
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公开(公告)号:US20140284742A1
公开(公告)日:2014-09-25
申请号:US13963762
申请日:2013-08-09
申请人: Kazuya SAWADA , Toshihiko NAGASE , Youngmin EEH , Koji UEDA , Daisuke WATANABE , Masahiko NAKAYAMA , Tadashi KAI , Hiroaki YODA
发明人: Kazuya SAWADA , Toshihiko NAGASE , Youngmin EEH , Koji UEDA , Daisuke WATANABE , Masahiko NAKAYAMA , Tadashi KAI , Hiroaki YODA
摘要: According to one embodiment, a magnetoresistive element includes first, second and third magnetic layers, and first and second nonmagnetic layers. The third magnetic layer has stack layers including a first stack layer close to the second magnetic layer, and a second stack layer far from the second magnetic layer. Each of the first and second stack layers includes a first layer made of a ferromagnetic material and a second layer made of a nonmagnetic material, and a first ratio of a film thickness of the first layer to that of the second layer in the first stack layer is higher than a second ratio of a film thickness of the first layer to that of the second layer in the second stack layer.
摘要翻译: 根据一个实施例,磁阻元件包括第一,第二和第三磁性层以及第一和第二非磁性层。 第三磁性层具有包括靠近第二磁性层的第一堆叠层和远离第二磁性层的第二堆叠层的堆叠层。 第一和第二堆叠层中的每一个包括由铁磁材料制成的第一层和由非磁性材料制成的第二层,并且第一层的第一层的膜厚度与第二层的膜厚度的第一比率 高于第二层的第一层的膜厚度与第二层的膜厚度的第二比率。
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公开(公告)号:US20140284534A1
公开(公告)日:2014-09-25
申请号:US14024114
申请日:2013-09-11
申请人: Toshihiko NAGASE , Tadashi KAI , Youngmin EEH , Koji UEDA , Daisuke WATANABE , Kazuya SAWADA , Hiroaki YODA
发明人: Toshihiko NAGASE , Tadashi KAI , Youngmin EEH , Koji UEDA , Daisuke WATANABE , Kazuya SAWADA , Hiroaki YODA
摘要: According to one embodiment, a magnetoresistive element is disclosed. The magnetoresistive element includes a first magnetic layer having a variable magnetization direction. A first nonmagnetic layer is provided on the first magnetic layer. A second magnetic layer having a fixed magnetization direction is provided on the first nonmagnetic layer. The first magnetic layer, the first nonmagnetic layer and the second magnetic layer are preferredly oriented in a cubical crystal (111) plane.
摘要翻译: 根据一个实施例,公开了一种磁阻元件。 磁阻元件包括具有可变磁化方向的第一磁性层。 第一非磁性层设置在第一磁性层上。 具有固定磁化方向的第二磁性层设置在第一非磁性层上。 第一磁性层,第一非磁性层和第二磁性层优选地取向为立方晶体(111)平面。
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公开(公告)号:US08686521B2
公开(公告)日:2014-04-01
申请号:US12716582
申请日:2010-03-03
申请人: Tadaomi Daibou , Toshihiko Nagase , Eiji Kitagawa , Masatoshi Yoshikawa , Katsuya Nishiyama , Makoto Nagamine , Tatsuya Kishi , Hiroaki Yoda
发明人: Tadaomi Daibou , Toshihiko Nagase , Eiji Kitagawa , Masatoshi Yoshikawa , Katsuya Nishiyama , Makoto Nagamine , Tatsuya Kishi , Hiroaki Yoda
IPC分类号: H01L29/82
CPC分类号: H01L27/228 , G11C11/161 , G11C11/1659 , G11C11/1673 , H01L43/08 , H01L43/10
摘要: A magnetoresistive element includes a stabilization layer, a nonmagnetic layer, a spin-polarization layer provided between the stabilization layer and the nonmagnetic layer, the spin-polarization layer having magnetic anisotropy in a perpendicular direction, and a magnetic layer provided on a side of the nonmagnetic layer opposite to a side on which the spin-polarization layer is provided. The stabilization layer has a lattice constant smaller than that of the spin-polarization layer in an in-plane direction. The spin-polarization layer contains at least one element selected from a group consisting of cobalt (Co) and iron (Fe), has a body-centered tetragonal (BCT) structure, and has a lattice constant ratio c/a of 1.10 (inclusive) to 1.35 (inclusive) when a perpendicular direction is a c-axis and an in-plane direction is an a-axis.
摘要翻译: 磁阻元件包括稳定层,非磁性层,设置在稳定层和非磁性层之间的自旋极化层,垂直方向具有磁各向异性的自旋极化层,以及设置在 非磁性层与设置有自旋极化层的一侧相反。 稳定层的面内方向的晶格常数小于自旋极化层的晶格常数。 自旋极化层含有选自钴(Co)和铁(Fe)中的至少一种元素,具有体心四方晶(BCT)结构,晶格常数比c / a为1.10(含 )为1.35(含),当垂直方向为c轴且面内方向为a轴时。
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