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1. 发明申请

US20090067099A1 Magnetoresistive element including layered film touching periphery of spacer layer 有权
标题翻译：磁阻元件包括层间膜接触间隔层的周边
公开(公告)号：US20090067099A1
公开(公告)日：2009-03-12
申请号：US11898335
申请日：2007-09-11
申请人： Yoshihiro Tsuchiya , Koji Shimazawa , Tomohito Mizuno , Shinji Hara , Daisuke Miyauchi , Takahiko Machita
发明人： Yoshihiro Tsuchiya , Koji Shimazawa , Tomohito Mizuno , Shinji Hara , Daisuke Miyauchi , Takahiko Machita
IPC分类号： G11B5/33
CPC分类号： B82Y10/00 , B82Y25/00 , G11B5/3906 , G11B2005/3996
摘要： An MR element includes an MR stack including a first ferromagnetic layer, a second ferromagnetic layer, and a spacer layer disposed between the first and the second ferromagnetic layer. The MR stack has an outer surface, and the spacer layer has a periphery located in the outer surface of the MR stack. The magnetoresistive element further includes a layered film that touches the periphery of the spacer layer. The spacer layer includes a semiconductor layer formed using an oxide semiconductor as a material. The layered film includes a first layer, a second layer, and a third layer stacked in this order. The first layer is formed of the same material as the semiconductor layer, and touches the periphery of the spacer layer. The second layer is a metal layer that forms a Schottky barrier at the interface between the first layer and the second layer. The third layer is an insulating layer.
摘要翻译： MR元件包括包括第一铁磁层，第二铁磁层和设置在第一和第二铁磁层之间的间隔层的MR堆叠。 MR堆叠具有外表面，并且间隔层具有位于MR堆叠的外表面中的周边。磁阻元件还包括接触间隔层的周边的层状膜。间隔层包括使用氧化物半导体作为材料形成的半导体层。层叠膜包括依次堆叠的第一层，第二层和第三层。第一层由与半导体层相同的材料形成，并且与间隔层的周边接触。第二层是在第一层和第二层之间的界面处形成肖特基势垒的金属层。第三层是绝缘层。

2. 发明申请

US20090059443A1 Magnetoresistive element including insulating film touching periphery of spacer layer 有权
标题翻译：磁阻元件包括接触间隔层周边的绝缘膜
公开(公告)号：US20090059443A1
公开(公告)日：2009-03-05
申请号：US11892771
申请日：2007-08-27
申请人： Yoshihiro Tsuchiya , Tomohito Mizuno , Shinji Hara , Daisuke Miyauchi , Takahiko Machita
发明人： Yoshihiro Tsuchiya , Tomohito Mizuno , Shinji Hara , Daisuke Miyauchi , Takahiko Machita
IPC分类号： G11B5/33
CPC分类号： G11B5/3909 , B82Y10/00 , B82Y25/00 , G01R33/093 , G11B5/3906 , G11B2005/3996
摘要： An MR element includes a stack of layers including a first ferromagnetic layer, a second ferromagnetic layer, and a spacer layer disposed between the first and the second ferromagnetic layer. The stack of layers has an outer surface, and the spacer layer has a periphery located in the outer surface of the stack of layers. The magnetoresistive element further includes an insulating film that touches the periphery of the spacer layer. The spacer layer includes a layer made of an oxide semiconductor composed of an oxide of a first metal. The insulating film includes a contact film that touches the periphery of the spacer layer and that is made of an oxide of a second metal having a Pauling electronegativity lower than that of the first metal by 0.1 or more.
摘要翻译： MR元件包括一叠层，包括第一铁磁层，第二铁磁层和设置在第一和第二铁磁层之间的间隔层。层叠层具有外表面，并且间隔层具有位于层叠层的外表面中的周边。磁阻元件还包括接触间隔层的周边的绝缘膜。间隔层包括由第一金属的氧化物构成的氧化物半导体层。绝缘膜包括接触间隔层的周边的接触膜，并且由具有低于第一金属的Pauling电负性的第二金属的氧化物制成的接触膜为0.1以上。

3. 发明授权

US08310791B2 Magnetoresistive effect element and magnetic disk device 有权
标题翻译：磁阻效应元件和磁盘装置
公开(公告)号：US08310791B2
公开(公告)日：2012-11-13
申请号：US12382309
申请日：2009-03-13
申请人： Takahiko Machita , Tomohito Mizuno , Koji Shimazawa , Tsutomu Chou , Daisuke Miyauchi , Yoshihiro Tsuchiya , Shinji Hara , Toshiyuki Ayukawa
发明人： Takahiko Machita , Tomohito Mizuno , Koji Shimazawa , Tsutomu Chou , Daisuke Miyauchi , Yoshihiro Tsuchiya , Shinji Hara , Toshiyuki Ayukawa
IPC分类号： G11B5/39
CPC分类号： G11B5/3929 , B82Y10/00 , B82Y25/00 , G11B2005/3996
摘要： A magnetoresistive effect element is structured in the manner that the antiferromagnetic layer interposed between the upper and lower shields is eliminated and the antiferromagnetic layer is positioned in a so-called shield layer. Therefore, it is realized to solve a pin reversal problem and to allow narrower tracks and narrower read gaps.
摘要翻译：磁阻效应元件的结构是，插入在上屏蔽和下屏蔽之间的反铁磁层被消除，反铁磁层位于所谓的屏蔽层中。因此，实现了解决引脚反转问题并且允许更窄的轨道和更窄的读取间隙。

4. 发明授权

US07944650B2 Magnetoresistive element including layered film touching periphery of spacer layer 有权
标题翻译：磁阻元件包括层间膜接触间隔层的周边
公开(公告)号：US07944650B2
公开(公告)日：2011-05-17
申请号：US11898335
申请日：2007-09-11
申请人： Yoshihiro Tsuchiya , Koji Shimazawa , Tomohito Mizuno , Shinji Hara , Daisuke Miyauchi , Takahiko Machita
发明人： Yoshihiro Tsuchiya , Koji Shimazawa , Tomohito Mizuno , Shinji Hara , Daisuke Miyauchi , Takahiko Machita
IPC分类号： G11B5/39 , G11B5/127 , G11B5/33
CPC分类号： B82Y10/00 , B82Y25/00 , G11B5/3906 , G11B2005/3996
摘要： An MR element includes an MR stack including a first ferromagnetic layer, a second ferromagnetic layer, and a spacer layer disposed between the first and the second ferromagnetic layer. The MR stack has an outer surface, and the spacer layer has a periphery located in the outer surface of the MR stack. The magnetoresistive element further includes a layered film that touches the periphery of the spacer layer. The spacer layer includes a semiconductor layer formed using an oxide semiconductor as a material. The layered film includes a first layer, a second layer, and a third layer stacked in this order. The first layer is formed of the same material as the semiconductor layer, and touches the periphery of the spacer layer. The second layer is a metal layer that forms a Schottky barrier at the interface between the first layer and the second layer. The third layer is an insulating layer.
摘要翻译： MR元件包括包括第一铁磁层，第二铁磁层和设置在第一和第二铁磁层之间的间隔层的MR堆叠。 MR堆叠具有外表面，并且间隔层具有位于MR堆叠的外表面中的周边。磁阻元件还包括接触间隔层的周边的层状膜。间隔层包括使用氧化物半导体作为材料形成的半导体层。层叠膜包括依次堆叠的第一层，第二层和第三层。第一层由与半导体层相同的材料形成，并且与间隔层的周边接触。第二层是在第一层和第二层之间的界面处形成肖特基势垒的金属层。第三层是绝缘层。

5. 发明申请

US20100232074A1 Magnetoresistive effect element and magnetic disk device 有权
标题翻译：磁阻效应元件和磁盘装置
公开(公告)号：US20100232074A1
公开(公告)日：2010-09-16
申请号：US12382309
申请日：2009-03-13
申请人： Takahiko Machita , Tomohito Mizuno , Koji Shimazawa , Tsutomu Chou , Daisuke Miyauchi , Yoshihiro Tsuchiya , Shinji Hara , Toshiyuki Ayukawa
发明人： Takahiko Machita , Tomohito Mizuno , Koji Shimazawa , Tsutomu Chou , Daisuke Miyauchi , Yoshihiro Tsuchiya , Shinji Hara , Toshiyuki Ayukawa
IPC分类号： G11B5/33
CPC分类号： G11B5/3929 , B82Y10/00 , B82Y25/00 , G11B2005/3996
摘要： A magnetoresistive effect element is structured in the manner that the antiferromagnetic layer interposed between the upper and lower shields is eliminated and the antiferromagnetic layer is positioned in a so-called shield layer. Therefore, it is realized to solve a pin reversal problem and to allow narrower tracks and narrower read gaps.
摘要翻译：磁阻效应元件的结构是，插入在上屏蔽和下屏蔽之间的反铁磁层被消除，反铁磁层位于所谓的屏蔽层中。因此，实现了解决引脚反转问题并且允许更窄的轨道和更窄的读取间隙。

6. 发明授权

US07739787B2 Method of manufacturing a magnetoresistive element 失效
标题翻译：制造磁阻元件的方法
公开(公告)号：US07739787B2
公开(公告)日：2010-06-22
申请号：US11715341
申请日：2007-03-08
申请人： Koji Shimazawa , Yoshihiro Tsuchiya , Tomohito Mizuno , Daisuke Miyauchi , Shinji Hara , Takahiko Machita
发明人： Koji Shimazawa , Yoshihiro Tsuchiya , Tomohito Mizuno , Daisuke Miyauchi , Shinji Hara , Takahiko Machita
IPC分类号： G11B5/127 , H04R31/00
CPC分类号： G11B5/3909 , B82Y10/00 , B82Y25/00 , G01R33/093 , G11B5/3929 , G11B2005/3996 , Y10T29/49032 , Y10T29/49043 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： In an MR element, each of a pinned layer and a free layer includes a Heusler alloy layer. The Heusler alloy layer has two surfaces that are quadrilateral in shape and face toward opposite directions. The Heusler alloy layer includes one crystal grain that touches four sides of one of the two surfaces. In a method of manufacturing the MR element, a layered film to be the MR element is formed and patterned, and then heat treatment is performed on the layered film patterned, so that crystal grains included in a film to be the Heusler alloy layer in the layered film grow and one crystal grain that touches four sides of one of the surfaces of the film to be the Heusler alloy layer is thereby formed.
摘要翻译：在MR元件中，被钉扎层和自由层中的每一个包括Heusler合金层。 Heusler合金层具有两个形状为四边形并面向相反方向的表面。 Heusler合金层包括接触两个表面之一的四个侧面的一个晶粒。在制造MR元件的方法中，形成并构图成为MR元件的层状膜，然后对图案化的层叠膜进行热处理，使得包含在作为Heusler合金层的膜中的晶粒在从而形成层状膜生长，并且形成一个接触作为Heusler合金层的膜的一个表面的四面的晶粒。

7. 发明申请

US20090190270A1 MAGNETO-RESISTIVE EFFECT DEVICE OF THE CPP TYPE, AND MAGNETIC DISK SYSTEM 有权
标题翻译： CPP类型和磁盘系统的磁阻效应器件
公开(公告)号：US20090190270A1
公开(公告)日：2009-07-30
申请号：US12022538
申请日：2008-01-30
申请人： Tsutomu Chou , Yoshihiro Tsuchiya , Daisuke Miyauchi , Takahiko Machita , Shinji Hara , Tomohito Mizuno , Hironobu Matsuzawa , Toshiyuki Ayukawa , Koji Shimazawa , Kiyoshi Noguchi
发明人： Tsutomu Chou , Yoshihiro Tsuchiya , Daisuke Miyauchi , Takahiko Machita , Shinji Hara , Tomohito Mizuno , Hironobu Matsuzawa , Toshiyuki Ayukawa , Koji Shimazawa , Kiyoshi Noguchi
IPC分类号： G11B5/33
CPC分类号： G11B5/398 , B82Y25/00 , G01R33/093 , G11B5/3916 , G11B5/3932 , G11B5/3967
摘要： The invention provides a magnetoresistive device with the CPP (current perpendicular to plane) structure, comprising a nonmagnetic intermediate layer, and a first ferromagnetic layer and a second ferromagnetic layer stacked and formed with said nonmagnetic intermediate layer interposed between them, with a sense current applied in the stacking direction, wherein each of said first and second ferromagnetic layers comprises a sensor area joining to the nonmagnetic intermediate layer near a medium opposite plane and a magnetization direction control area that extends further rearward (toward the depth side) from the position of the rear end of said nonmagnetic intermediate layer; a magnetization direction control multilayer arrangement is interposed at an area where the magnetization direction control area for said first ferromagnetic layer is opposite to the magnetization direction control area for said second ferromagnetic layer in such a way that the magnetizations of the said first and second ferromagnetic layers are antiparallel with each other along the width direction axis; and said sensor area is provided at both width direction ends with biasing layers working such that the mutually antiparallel magnetizations of said first and second ferromagnetic layers intersect in substantially orthogonal directions. It is thus possible to obtain a magnetoresistive device that, while the magnetization directions of two magnetic layers (free layers) stay stabilized, can have high reliability, and can improve linear recording densities by the adoption of a structure capable of narrowing the read gap (the gap between the upper and lower shields) thereby meeting recent demands for ultra-high recording densities.
摘要翻译：本发明提供了一种具有CPP（电流垂直于平面）结构的磁阻器件，包括非磁性中间层，并且第一铁磁层和第二铁磁层层叠并形成有介于它们之间的所述非磁性中间层，施加感应电流其特征在于，所述第一和第二铁磁体层中的每一个包括与介质相对平面附近的非磁性中间层连接的传感器区域和从所述第一和第二铁磁层的位置向后延伸（朝向深度侧）的磁化方向控制区域所述非磁性中间层的后端; 磁化方向控制多层布置被插入在所述第一铁磁层的磁化方向控制区域与所述第二铁磁层的磁化方向控制区域相反的区域处，使得所述第一和第二铁磁层的磁化沿着宽度方向轴线彼此反平行; 并且所述传感器区域设置在两个宽度方向端，偏压层工作，使得所述第一和第二铁磁层的相互反平行磁化在大致正交的方向相交。因此，可以获得在两个磁性层（自由层）的磁化方向保持稳定的同时可以具有高可靠性的磁阻器件，并且可以通过采用能够缩小读取间隙的结构来提高线性记录密度（上，下屏蔽之间的间隙），从而满足了对超高记录密度的最新要求。

8. 发明授权

US07446983B2 Magnetoresistive element, thin-film magnetic head, head gimbal assembly, and magnetic disk drive 有权
标题翻译：磁阻元件，薄膜磁头，磁头万向节组件和磁盘驱动器
公开(公告)号：US07446983B2
公开(公告)日：2008-11-04
申请号：US11002814
申请日：2004-12-03
申请人： Daisuke Miyauchi , Tomohito Mizuno
发明人： Daisuke Miyauchi , Tomohito Mizuno
IPC分类号： G11B5/39 , G11B5/127
CPC分类号： G11B5/3903
摘要： An MR element comprises: a nonmagnetic conductive layer having two surfaces facing toward opposite directions; a free layer disposed adjacent to one of the surfaces of the nonmagnetic conductive layer, wherein the direction of magnetization in the free layer changes in response to an external magnetic field; and a pinned layer disposed adjacent to the other of the surfaces of the nonmagnetic conductive layer, wherein the direction of magnetization in the pinned layer is fixed. The pinned layer incorporates a first pinned layer, a coupling layer and a second pinned layer. The second pinned layer incorporates first to third magnetic layers each of which is made of a magnetic material. Layered structures each made up of a Cu film, a magnetic film and a Cu film are inserted between the first magnetic layer and the second magnetic layer, and between the second magnetic layer and the third magnetic layer, respectively.
摘要翻译： MR元件包括：具有朝向相反方向的两个表面的非磁性导电层; 邻近所述非磁性导电层的一个表面设置的自由层，其中所述自由层中的磁化方向响应于外部磁场而改变; 以及与非磁性导电层的另一个表面相邻设置的钉扎层，其中钉扎层中的磁化方向是固定的。固定层包括第一固定层，耦合层和第二固定层。第二钉扎层包括第一至第三磁性层，每个磁性层由磁性材料制成。各自由Cu膜，磁性膜和Cu膜构成的分层结构分别插入在第一磁性层和第二磁性层之间以及第二磁性层和第三磁性层之间。

9. 发明授权

US07310210B2 Magnetoresistive sensor having cobalt-iron alloy layer in free layer 有权
标题翻译：磁阻传感器在自由层中具有钴 - 铁合金层
公开(公告)号：US07310210B2
公开(公告)日：2007-12-18
申请号：US11043118
申请日：2005-01-27
申请人： Daisuke Miyauchi , Tomohito Mizuno
发明人： Daisuke Miyauchi , Tomohito Mizuno
IPC分类号： G11B5/127
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3906 , G11B2005/3996
摘要： A magnetoresistive sensor comprises a pinned layer having a magnetization direction fixed with respect to an external magnetic field, a free layer, having a magnetization direction variable in accordance with the external magnetic field, and a spacer layer mainly containing copper, sandwiched between the pinned layer and the free layer. A sense current flows through the pinned layer, the spacer layer, and the free layer substantially in a direction in which the layers are stacked. The free layer comprises at least one intermediate stack composed of a non-magnetic layer mainly containing copper, and a first cobalt iron layers made of a cobalt iron alloy and disposed on boundaries on both sides of the non-magnetic layer, a nickel iron alloy layers disposed on boundaries on both sides of the intermediate stack, and a second cobalt iron layer made of a cobalt iron alloy and formed in contact with the spacer layer on a boundary, opposing the spacer layer, of a stack composed of the intermediate stack and the nickel iron alloy layer.
摘要翻译：磁阻传感器包括相对于外部磁场具有固定磁化方向的固定层，具有根据外部磁场可变化的磁化方向的自由层和主要包含铜的间隔层，该间隔层夹在被钉扎层和自由层。检测电流基本上沿堆叠层的方向流过被钉扎层，间隔层和自由层。自由层包括由主要包含铜的非磁性层和由钴铁合金制成并设置在非磁性层两侧的边界上的第一钴铁层构成的至少一个中间叠层，镍铁合金设置在中间堆叠的两侧的边界上的层和由钴铁合金制成的第二钴铁层，并且形成为与间隔层相对的间隔层与间隔层相对的由中间堆叠构成的堆叠和镍铁合金层。

10. 发明申请

US20070121255A1 Magneto-resistance effect element having Heusler alloy compounds adjacent to spacer layer 审中-公开
标题翻译：具有与间隔层相邻的Heusler合金化合物的磁阻效应元件
公开(公告)号：US20070121255A1
公开(公告)日：2007-05-31
申请号：US11519921
申请日：2006-09-13
申请人： Yoshihiro Tsuchiya , Tomohito Mizuno , Koji Shimazawa , Daisuke Miyauchi
发明人： Yoshihiro Tsuchiya , Tomohito Mizuno , Koji Shimazawa , Daisuke Miyauchi
IPC分类号： G11B5/33 , G11B5/127
CPC分类号： B82Y25/00 , B82Y40/00 , G01R33/093 , G11B5/3906 , H01F10/1936 , H01F10/3272 , H01F41/303 , H01L43/10
摘要： A magneto-resistance effect element according to the present invention comprises a pinned layer whose magnetization direction is fixed; a free layer whose magnetization direction varies in accordance with an external magnetic field; and a nonmagnetic spacer layer that is arranged between said pinned layer and said free layer. At least either said pinned layer or said free layer includes a Heusler alloy layer that is disposed adjacent to said spacer layer, and compounds are arranged in a dotted pattern at an interface between said spacer layer and at least said spacer layer and said pinned layer or said spacer layer and said free layer, said compounds including material that is included in said Heusler alloy layer.
摘要翻译：根据本发明的磁阻效应元件包括其磁化方向固定的钉扎层; 其磁化方向根据外部磁场而变化的自由层; 以及布置在所述被钉扎层和所述自由层之间的非磁性间隔层。所述被钉扎层或所述自由层中的至少一个包括邻近所述间隔层设置的Heusler合金层，并且化合物以虚线图案布置在所述间隔层和至少所述间隔层和所述钉扎层之间的界面处，或所述间隔层和所述自由层，所述化合物包括包含在所述Heusler合金层中的材料。

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