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公开(公告)号：US11276729B2
公开(公告)日：2022-03-15
申请号：US16078759
申请日：2016-12-01
Applicant: SONY CORPORATION
Inventor： Hiroyuki Uchida , Masanori Hosomi , Hiroyuki Ohmori , Kazuhiro Bessho , Yutaka Higo
Abstract: A magnetoresistive element includes: a first laminated structure body having a first surface and a second surface 20B facing the first surface; and a second laminated structure body formed by laminating a storage layer, an intermediate layer, and a magnetization fixed layer, the second laminated structure body having a first surface and a second surface facing the first surface, the first surface being positioned facing the second surface of the first laminated structure body. The first laminated structure body has a laminated structure including, from the first surface side of the first laminated structure body, a first layer made of a metal nitride and a second layer made of ruthenium or a ruthenium compound.
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公开(公告)号：US10854256B2
公开(公告)日：2020-12-01
申请号：US16777222
申请日：2020-01-30
Applicant: Sony Corporation
Inventor： Yutaka Higo , Masanori Hosomi , Hiroyuki Ohmori , Kazuhiro Bessho , Tetsuya Asayama , Kazutaka Yamane , Hiroyuki Uchida
Abstract: A storage element includes a layer structure including a storage layer having a direction of magnetization which changes according to information, a magnetization fixed layer having a fixed direction of magnetization, and an intermediate layer disposed therebetween, which intermediate layer contains a nonmagnetic material. The magnetization fixed layer has at least two ferromagnetic layers having a direction of magnetization tilted from a direction perpendicular to a film surface, which are laminated and magnetically coupled interposing a coupling layer therebetween. This configuration may effectively prevent divergence of magnetization reversal time due to directions of magnetization of the storage layer and the magnetization fixed layer being substantially parallel or antiparallel, reduce write errors, and enable writing operation in a short time.
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公开(公告)号：US20190267063A1
公开(公告)日：2019-08-29
申请号：US16408840
申请日：2019-05-10
Applicant: Sony Corporation
Inventor： Yutaka Higo , Masanori Hosomi , Hiroyuki Ohmori , Kazuhiro Bessho , Tetsuya Asayama , Kazutaka Yamane , Hiroyuki Uchida
Abstract: A storage element includes a layer structure including a storage layer having a direction of magnetization which changes according to information, a magnetization fixed layer having a fixed direction of magnetization, and an intermediate layer disposed therebetween, which intermediate layer contains a nonmagnetic material. The magnetization fixed layer has at least two ferromagnetic layers having a direction of magnetization tilted from a direction perpendicular to a film surface, which are laminated and magnetically coupled interposing a coupling layer therebetween. This configuration may effectively prevent divergence of magnetization reversal time due to directions of magnetization of the storage layer and the magnetization fixed layer being substantially parallel or antiparallel, reduce write errors, and enable writing operation in a short time.
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公开(公告)号：US10375698B2
公开(公告)日：2019-08-06
申请号：US15650174
申请日：2017-07-14
Applicant: Sony Corporation
Inventor： Yutaka Higo , Masanori Hosomi , Hiroyuki Ohmori , Kazuhiro Bessho , Tetsuya Asayama , Kazutaka Yamane , Hiroyuki Uchida
IPC: G11C11/00 , H04W72/04 , H01L43/08 , H01L27/22 , G11C11/16 , G11C5/08 , H01L43/10 , H04W72/08 , H04W72/12
Abstract: A memory system is provided. The memory system includes a memory area configured to include a plurality of memory cells; a driving area configured to drive the memory cells; and a control area configured to supply a standby current to the memory area before the memory area records data; a plurality of word lines is crossing to a plurality of bit lines via the plurality of memory cells; and wherein each of the memory cells includes a memory layer, a magnetic fixed layer, an intermediate layer including a non-magnetic material provided between the memory layer and the magnetic fixed layer, a top electrode provided over the memory layer, a bottom electrode provided over the magnetic fixed layer.
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公开(公告)号：US10332577B2
公开(公告)日：2019-06-25
申请号：US15943361
申请日：2018-04-02
Applicant: Sony Corporation
Inventor： Yutaka Higo , Masanori Hosomi , Hiroyuki Ohmori , Kazuhiro Bessho , Tetsuya Asayama , Kazutaka Yamane , Hiroyuki Uchida
Abstract: A storage element includes a layer structure including a storage layer having a direction of magnetization which changes according to information, a magnetization fixed layer having a fixed direction of magnetization, and an intermediate layer disposed therebetween, which intermediate layer contains a nonmagnetic material. The magnetization fixed layer has at least two ferromagnetic layers having a direction of magnetization tilted from a direction perpendicular to a film surface, which are laminated and magnetically coupled interposing a coupling layer therebetween. This configuration may effectively prevent divergence of magnetization reversal time due to directions of magnetization of the storage layer and the magnetization fixed layer being substantially parallel or antiparallel, reduce write errors, and enable writing operation in a short time.
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Patent Agency Ranking
公开(公告)号：US20180240507A1
公开(公告)日：2018-08-23
申请号：US15943361
申请日：2018-04-02
Applicant: Sony Corporation
Inventor： Yutaka Higo , Masanori Hosomi , Hiroyuki Ohmori , Kazuhiro Bessho , Tetsuya Asayama , Kazutaka Yamane , Hiroyuki Uchida
CPC classification number: G11C11/161 , G11B5/3906 , G11B5/3909 , G11C11/15 , G11C11/155 , G11C11/1675 , H01F10/3254 , H01F10/3268 , H01F10/3272 , H01F10/3286 , H01F10/329 , H01L27/228 , H01L43/02 , H01L43/08
Abstract: A storage element includes a layer structure including a storage layer having a direction of magnetization which changes according to information, a magnetization fixed layer having a fixed direction of magnetization, and an intermediate layer disposed therebetween, which intermediate layer contains a nonmagnetic material. The magnetization fixed layer has at least two ferromagnetic layers having a direction of magnetization tilted from a direction perpendicular to a film surface, which are laminated and magnetically coupled interposing a coupling layer therebetween. This configuration may effectively prevent divergence of magnetization reversal time due to directions of magnetization of the storage layer and the magnetization fixed layer being substantially parallel or antiparallel, reduce write errors, and enable writing operation in a short time.
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公开(公告)号：US09997698B2
公开(公告)日：2018-06-12
申请号：US15658862
申请日：2017-07-25
Applicant: Sony Corporation
Inventor： Yutaka Higo , Masanori Hosomi , Hiroyuki Ohmori , Kazuhiro Bessho , Tetsuya Asayama , Kazutaka Yamane , Hiroyuki Uchida
IPC: G11C11/14 , H01L43/02 , G11B5/39 , G11C11/15 , H01F10/32 , G11C11/16 , H01L27/22 , H01L43/08 , G11C11/155
CPC classification number: G11C11/161 , G11B5/3906 , G11B5/3909 , G11C11/15 , G11C11/155 , G11C11/1675 , H01F10/3254 , H01F10/3268 , H01F10/3272 , H01F10/3286 , H01F10/329 , H01L27/228 , H01L43/02 , H01L43/08
Abstract: A storage element includes a layer structure including a storage layer having a direction of magnetization which changes according to information, a magnetization fixed layer having a fixed direction of magnetization, and an intermediate layer disposed therebetween, which intermediate layer contains a nonmagnetic material. The magnetization fixed layer has at least two ferromagnetic layers having a direction of magnetization tilted from a direction perpendicular to a film surface, which are laminated and magnetically coupled interposing a coupling layer therebetween. This configuration may effectively prevent divergence of magnetization reversal time due to directions of magnetization of the storage layer and the magnetization fixed layer being substantially parallel or antiparallel, reduce write errors, and enable writing operation in a short time.
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公开(公告)号：US09847161B2
公开(公告)日：2017-12-19
申请号：US14805015
申请日：2015-07-21
Applicant: Sony Corporation
Inventor： Hiroyuki Ohmori , Masanori Hosomi , Kazuhiro Bessho , Yutaka Higo , Kazutaka Yamane , Hiroyuki Uchida , Tetsuya Asayama
IPC: H01F10/32 , H01L43/02 , H01L43/10 , G11C11/16 , H01L43/08 , H01L27/22 , H01F41/30 , B82Y40/00 , H01F41/32
CPC classification number: H01F10/3286 , B82Y40/00 , G11C11/161 , G11C11/1675 , H01F10/3254 , H01F10/329 , H01F41/303 , H01F41/325 , H01L27/226 , H01L43/02 , H01L43/08 , H01L43/10
Abstract: A storage element includes a storage layer having a magnetization perpendicular to a layer surface and storing information according to a magnetization state of a magnetic material; a fixed magnetization layer having the magnetization as a reference of the information of the storage layer and perpendicular to the layer surface; an interlayer formed of a nonmagnetic material and interposed between the storage layer and the fixed magnetization layer; a coercive force enhancement layer adjacent to the storage layer, opposite to the interlayer, and formed of Cr, Ru, W, Si, or Mn; and a spin barrier layer formed of an oxide, adjacent to the coercive force enhancement layer, and opposite to the storage layer. The storage layer magnetization is reversed using spin torque magnetization reversal caused by a current in a lamination direction of a layer structure including the storage layer, the interlayer, and the fixed magnetization layer, thereby storing information.
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公开(公告)号：US09767874B2
公开(公告)日：2017-09-19
申请号：US15220832
申请日：2016-07-27
Applicant: Sony Corporation
Inventor： Yutaka Higo , Masanori Hosomi , Hiroyuki Ohmori , Kazuhiro Bessho , Tetsuya Asayama , Kazutaka Yamane , Hiroyuki Uchida
CPC classification number: H04W72/048 , G11C5/08 , G11C11/161 , G11C11/1675 , G11C11/1697 , H01L27/228 , H01L43/08 , H01L43/10 , H04W72/085 , H04W72/121
Abstract: A memory apparatus and a memory device are provided. The memory apparatus includes a memory device including a plurality of memory cells and a driving circuit configured to control the memory cells; wherein each of the memory cells includes a memory layer where a magnetization direction is changeable by a current, a magnetic fixed layer having a fixed magnetization, an intermediate layer including a non-magnetic material provided between the memory layer and the magnetic fixed layer, a top electrode provided over the memory layer, a bottom electrode provided over the magnetic fixed layer; wherein the current is configured to flow in a lamination direction between the top electrode and the bottom electrode.
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公开(公告)号：US09444034B2
公开(公告)日：2016-09-13
申请号：US14354760
申请日：2012-10-31
Applicant: Sony Corporation
Inventor： Yutaka Higo , Masanori Hosomi , Hiroyuki Ohmori , Kazuhiro Bessho , Tetsuya Asayama , Kazutaka Yamane , Hiroyuki Uchida
CPC classification number: G11C11/161 , G11B5/3906 , G11B5/3909 , G11C11/15 , G11C11/155 , G11C11/1675 , H01F10/3254 , H01F10/3268 , H01F10/3272 , H01F10/3286 , H01F10/329 , H01L27/228 , H01L43/02 , H01L43/08
Abstract: [Object] To provide a storage element and a storage apparatus capable of performing writing operation in a short time without generating write errors.[Solving Means] A storage element includes a layer structure including a storage layer having a direction of magnetization which changes according to information, a magnetization fixed layer having a fixed direction of magnetization, and an intermediate layer disposed therebetween, which intermediate layer contains a nonmagnetic material. The magnetization fixed layer has at least two ferromagnetic layers having a direction of magnetization tilted from a direction perpendicular to a film surface, which are laminated and magnetically coupled interposing a coupling layer therebetween. This configuration may effectively prevent divergence of magnetization reversal time due to directions of magnetization of the storage layer and the magnetization fixed layer being substantially parallel or antiparallel, reduce write errors, and enable writing operation in a short time.
Abstract translation: [解决方案]存储元件包括层结构，该层结构包括具有根据信息改变的磁化方向的存储层，具有固定的磁化方向的磁化固定层和设置在其间的中间层，该中间层包含非磁性 材料。 磁化固定层具有至少两个铁磁层，其具有从垂直于膜表面的方向倾斜的磁化方向，这两个铁磁层层叠并磁耦合在其间插入耦合层。 该构造可以有效地防止由于存储层和磁化固定层的磁化方向基本上平行或反平行的磁化反转时间的发散，减少写入错误，并且能够在短时间内实现写入操作。
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