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1. 发明授权

US08040641B2 Magneto-resistance effect element with a stacked body having a constricted shape 有权
标题翻译：具有收缩形状的层叠体的磁阻效应元件
公开(公告)号：US08040641B2
公开(公告)日：2011-10-18
申请号：US11783098
申请日：2007-04-05
申请人： Daisuke Miyauchi , Kazuki Sato , Takayasu Kanaya , Takahiko Machita
发明人： Daisuke Miyauchi , Kazuki Sato , Takayasu Kanaya , Takahiko Machita
IPC分类号： G11B5/39
CPC分类号： G11B5/3163 , G11B5/398 , G11B5/59683 , H01L43/08 , H01L43/12
摘要： A magneto-resistance effect element comprises a stacked body which comprises a pinned layer having a fixed magnetization direction, a free layer having a magnetization direction that varies according to an external magnetic field, and a nonmagnetic spacer layer which is interposed between the pinned layer and the free layer. The stacked body having a constricted shape in which at least one part of the spacer layer is constricted when viewed from at least one direction perpendicular to a stacked direction of the stacked body.
摘要翻译：磁阻效应元件包括层叠体，该层叠体包括具有固定的磁化方向的被钉扎层，具有根据外部磁场变化的磁化方向的自由层，以及插入在被钉扎层和被覆层之间的非磁性间隔层自由层。所述层叠体具有收缩形状，其中当从垂直于所述层叠体的堆叠方向的至少一个方向观察时，所述间隔层的至少一部分收缩。

2. 发明授权

US08018692B2 Thin film magnetic head and method of manufacturing the same 有权
标题翻译：薄膜磁头及其制造方法
公开(公告)号：US08018692B2
公开(公告)日：2011-09-13
申请号：US12318925
申请日：2009-01-13
申请人： Takayasu Kanaya
发明人： Takayasu Kanaya
IPC分类号： G11B5/33 , G11B5/48 , G11B5/60
CPC分类号： G11B5/3932 , G01R33/098 , G11B5/3163 , G11B5/398 , G11B5/6005 , H01L43/08
摘要： A thin film magnetic head has a magneto-resistive (MR) effect element including an MR effect film formed by sequentially layering a magnetic pinned layer, a nonmagnetic layer and a free layer, and a pair of bias magnetic field application layers formed at junction tapered parts formed on both end parts of the magneto-resistive effect film in the width direction via insulating layers. Further, magnetic pinned layer oxidized films whose thickness is Hx (unit: nm) are disposed on end parts of the magnetic pinned layer at the junction tapered parts, free layer oxidized films whose thickness is Hf (unit: nm) are disposed on end parts of the free layer at the junction tapered parts, and the oxidized films are configured such that the thickness ratio (Hx/Hf) is not more than 0.5. With this configuration, the bias magnetic filed application layers effectively apply a vertical bias magnetic filed to the free layer, resulting in that the thin film magnetic head is realized having a large MR ratio, a small deviation σ of MR waveform asymmetry, and excellent reliability.
摘要翻译：薄膜磁头具有磁阻（MR）效应元件，其包括通过顺序层叠磁性被钉扎层，非磁性层和自由层而形成的MR效应膜，以及一对形成在结锥度处的偏置磁场施加层通过绝缘层在宽度方向上形成在磁阻效应膜的两端部上的部分。此外，厚度为Hx（单位：nm）的磁性钉扎层氧化膜设置在接合锥形部的磁性被钉扎层的端部，厚度为Hf（单位：nm）的自由层氧化膜设置在端部的结合锥形部分的自由层，并且氧化膜被配置为使得厚度比（Hx / Hf）不大于0.5。利用这种结构，偏置磁场施加层有效地将垂直偏置磁场施加到自由层，导致实现了具有大的MR比，小的偏差＆sgr的薄膜磁头; 的MR波形不对称，优异的可靠性。

3. 发明申请

US20110216430A1 MAGNETIC HEAD INCLUDING SENSOR 有权
标题翻译：磁头包括传感器
公开(公告)号：US20110216430A1
公开(公告)日：2011-09-08
申请号：US12718404
申请日：2010-03-05
申请人： Takayasu KANAYA , Yosuke Antoku , Kazuki Sato , Takayuki Nishizawa , Masaru Ilda
发明人： Takayasu KANAYA , Yosuke Antoku , Kazuki Sato , Takayuki Nishizawa , Masaru Ilda
IPC分类号： G11B27/36
CPC分类号： G11B27/36
摘要： A magnetic head disposed in a slider arranged with an interval with respect to a magnetic disk includes a sensor that is positioned in a stepped-back position from an air bearing surface facing the magnetic disk, an insulating film that is positioned on the air bearing surface and that covers the sensor; a pair of lead films, the lead films being electrically connected to the sensor such that at least portions of the lead films are exposed on the air bearing surface, and being configured to transfer a temperature change of the air bearing surface to the sensor.
摘要翻译：设置在相对于磁盘间隔设置的滑块中的磁头包括从面向磁盘的空气轴承表面位于后退位置的传感器，位于空气支承表面上的绝缘膜覆盖传感器; 一对引线膜，所述引线膜电连接到所述传感器，使得所述引线膜的至少一部分暴露在所述空气轴承表面上，并且被配置为将所述空气轴承表面的温度变化传递到所述传感器。

4. 发明申请

US20060067010A1 Manufacturing method of thin-film magnetic head and thin-film magnetic head 有权
标题翻译：薄膜磁头和薄膜磁头的制造方法
公开(公告)号：US20060067010A1
公开(公告)日：2006-03-30
申请号：US10971113
申请日：2004-10-25
申请人： Takeo Kagami , Takayasu Kanaya , Noriaki Kasahara , Kazuki Sato
发明人： Takeo Kagami , Takayasu Kanaya , Noriaki Kasahara , Kazuki Sato
IPC分类号： G11B5/33 , G11B5/127
CPC分类号： G11B5/332 , Y10T29/49043 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： A manufacturing method of a thin-film magnetic head includes a step of depositing an MR multi-layered film on a lower electrode layer, a step of patterning the deposited MR multi-layered film to define a track width, a step of forming a layer containing at least first insulation layer at both track-width direction sides of the patterned MR multi-layered film, a step of depositing a first additional upper metal layer on the patterned MR multi-layered film and on the layer containing at least first insulation layer, a step of patterning the first additional upper metal layer and the MR multi-layered film to define a length in a direction perpendicular to the track-width direction so as to obtain an MR multi-layered structure, a step of forming a second insulation layer to surround the first additional upper metal layer and the MR multi-layered structure, a step of removing by etching the second insulation layer on the first additional upper metal layer formed on the MR multi-layered structure, a step of thereafter, forming a second additional upper metal layer on the first additional upper metal layer and on the second insulation layer, and a step of forming an upper electrode layer on the second additional upper metal layer.
摘要翻译：薄膜磁头的制造方法包括在下电极层上沉积MR多层膜的步骤，对沉积的MR多层膜进行图案化以限定磁道宽度的步骤，形成层的步骤在图案化MR多层膜的两个轨道宽度方向侧上至少含有第一绝缘层，在图案化MR多层膜上沉积第一附加上金属层和在至少包含第一绝缘层的层上沉积步骤图案化第一附加上金属层和MR多层膜以在垂直于轨道宽度方向的方向上限定长度以获得MR多层结构的步骤，形成第二绝缘体的步骤层以围绕第一附加上金属层和MR多层结构，通过蚀刻在形成在MR多层结构上的第一附加上金属层上的第二绝缘层去除步骤其次，在第一附加上金属层和第二绝缘层上形成第二另外的上金属层，以及在第二另外的上金属层上形成上电极层的步骤。

5. 发明申请

US20060056117A1 Magnetoresistive effect element having hard magnetic films in non-uniform cross-sectional shape 失效
公开(公告)号：US20060056117A1
公开(公告)日：2006-03-16
申请号：US11225016
申请日：2005-09-14
申请人： Daisuke Miyauchi , Kazuki Sato , Takayasu Kanaya
发明人： Daisuke Miyauchi , Kazuki Sato , Takayasu Kanaya
IPC分类号： G11B5/127 , G11B5/33
CPC分类号： B82Y25/00 , B82Y10/00 , G01R33/093 , G11B5/3932 , G11B5/398 , G11B2005/3996 , H01L43/08
摘要： A magnetoresistive effect sensor includes a pinned layer, a nonmagnetic spacer layer, and a free layer having a total thickness of at least 10 nm. The sensor has insulating films disposed on both side surfaces of the spin valve film. The sensor has hard magnetic films disposed on the insulating films for applying a biasing magnetic field to the free layer. Each hard magnetic film extends toward the free layer in a vicinity of the spin valve film, such that as each hard magnetic film extends toward the spin valve film, a cross-sectional area thereof in a plane perpendicular to the layer width direction becomes progressively smaller. Each hard magnetic film has, in a plane parallel to the air bearing surface, a first boundary line which at least partially faces the free layer and substantially defines an end point of the hard magnetic film in the layer width direction.

6. 发明申请

US20050195536A1 Thin-film magnetic head comprising bias layers having a large length in track width direction 失效
标题翻译：薄膜磁头包括在磁道宽度方向上具有大长度的偏置层
公开(公告)号：US20050195536A1
公开(公告)日：2005-09-08
申请号：US11066763
申请日：2005-02-28
申请人： Takeo Kagami , Noriaki Kasahara , Kazuki Sato , Takayasu Kanaya
发明人： Takeo Kagami , Noriaki Kasahara , Kazuki Sato , Takayasu Kanaya
IPC分类号： G11B5/39 , G11B5/127 , G11B5/33
CPC分类号： G11B5/398 , B82Y25/00 , G01R33/093 , G01R33/098 , G11B5/3932 , G11B2005/0008
摘要： The thin-film magnetic head of the present invention comprises an MR sensor wherein a first ferromagnetic layer in which a magnetization direction is fixed with respect to external magnetic fields, a non-magnetic intermediate layer, and a second ferromagnetic layer in which a magnetization direction changes with respect to the external magnetic fields are stacked, and wherein a sense current flows substantially parallel to the stacked layer surface. The thin-film magnetic head comprises a pair of bias layers for exerting a bias magnetic field upon the MR sensor; the bias layers extending substantially symmetrically from two sides of the MR sensor in a direction of track width of a recording medium, each bias layer being connected with the MR sensor over a length which is substantially the same as the MR sensor in a direction perpendicular to the air bearing surface; and each bias layer having a shape which is contained within an imaginary rectangle which has its long sides along the air bearing surface in the direction of the track width of the recording medium and its short sides in the direction perpendicular to the air bearing surface and which contacts the short side of the imaginary rectangle which is opposite the short side which contacts the MR sensor. The thin-film magnetic head further comprises a pair of lead layers for supplying the sense current to the MR sensor each extending from the air bearing surface to cover at least a portion of each of the bias layers.
摘要翻译：本发明的薄膜磁头包括MR传感器，其中磁化方向相对于外部磁场固定的第一铁磁层，非磁性中间层和第二铁磁层，其中磁化方向相对于外部磁场的变化被堆叠，并且其中感测电流基本上平行于堆叠的层表面流动。薄膜磁头包括用于在MR传感器上施加偏置磁场的一对偏置层; 偏置层在MR传感器的两侧沿着记录介质的磁道宽度的方向基本上对称地延伸，每个偏置层在与MR传感器垂直的方向上与MR传感器基本相同的长度上与MR传感器连接空气轴承表面; 并且每个偏置层具有包含在假想矩形内的形状，该假想矩形具有沿着记录介质的轨道宽度的空气轴承表面的长边，并且在垂直于空气轴承表面的方向上具有短边，接触与MR传感器接触的短边相反的假想矩形的短边。薄膜磁头还包括一对引导层，用于向MR传感器提供感测电流，每个引导层从空气支承表面延伸以覆盖每个偏置层的至少一部分。

7. 发明授权

US08724264B2 Thin film magnetic head, magnetic head slider, head gimbal assembly, head arm assembly, magnetic disk device and method of manufacturing thin film magnetic head 有权
标题翻译：薄膜磁头，磁头滑块，头万向架组件，头臂组件，磁盘装置及制造薄膜磁头的方法
公开(公告)号：US08724264B2
公开(公告)日：2014-05-13
申请号：US12230781
申请日：2008-09-04
申请人： Kei Hirata , Takayasu Kanaya , Kosuke Tanaka , Shinji Hara
发明人： Kei Hirata , Takayasu Kanaya , Kosuke Tanaka , Shinji Hara
IPC分类号： G11B5/33 , B82Y10/00 , B82Y25/00 , G11B5/39
CPC分类号： B82Y10/00 , B82Y25/00 , G11B5/3909 , G11B5/3912 , G11B5/3932 , G11B2005/3996
摘要： A thin film magnetic head including a magnetoresistive element (MR) having higher reading performance. In manufacturing the thin film magnetic head, after forming an MR element, a pair of magnetic domain controlling layers are formed by stacking a buffer layer, a magnetic bias layer and a first cap layer in this order on both sides, in a track-width direction, of the MR element via an insulating layer, respectively. Then, a second cap layer is formed to cover the upper surface of the MR element and connect the pair of cap-layers. Then, a gap adjustment layer and a top shielding layer are formed to cover the pair of first cap layers and the second cap layer, completing a read head section.
摘要翻译：包括具有较高读取性能的磁阻元件（MR）的薄膜磁头。在制造薄膜磁头时，在形成MR元件之后，通过在两侧依次层叠缓冲层，磁偏置层和第一盖层而形成一对磁畴控制层，轨道宽度 MR元件的方向分别经由绝缘层。然后，形成第二盖层以覆盖MR元件的上表面并连接一对盖层。然后，形成间隙调整层和顶部屏蔽层以覆盖一对第一盖层和第二盖层，从而完成读取头部。

8. 发明申请

US20130062307A1 METHOD OF MAKING A MASK, METHOD OF PATTERNING BY USING THIS MASK AND METHOD OF MANUFACTURING A MICRO-DEVICE 有权
标题翻译：制造掩模的方法，使用该掩模的图案的方法和制造微型器件的方法
公开(公告)号：US20130062307A1
公开(公告)日：2013-03-14
申请号：US13230261
申请日：2011-09-12
申请人： Hisayoshi WATANABE , Hideyuki Yatsu , Takayuki Nishizawa , Masashi Sano , Hiromichi Umehara , Takayasu Kanaya , Tetsuji Hori
发明人： Hisayoshi WATANABE , Hideyuki Yatsu , Takayuki Nishizawa , Masashi Sano , Hiromichi Umehara , Takayasu Kanaya , Tetsuji Hori
IPC分类号： C23F1/04 , G11B5/31 , G03F7/20
CPC分类号： G11B5/3163
摘要： The present invention relates to a method of making a mask for patterning a thin film The method includes a step of forming an inorganic material, which is resolvable into alkali solution, on a substrate; a step of forming the inorganic material in a predetermined pattern; and a step of narrowing the inorganic material with the alkali solution to form the mask.
摘要翻译：本发明涉及一种制备用于图案化薄膜的掩模的方法。该方法包括在基板上形成可分解成碱溶液的无机材料的步骤; 以预定图案形成无机材料的步骤; 以及用碱溶液使无机材料变窄以形成掩模的步骤。

9. 发明授权

US07978438B2 Thin-film magnetic head with shield layer profile having obtuse or rounded corners, magnetic head assembly, magnetic disk drive apparatus and manufacturing method of thin-film magnetic head 有权
标题翻译：具有钝角或圆角的屏蔽层轮廓的薄膜磁头，磁头组件，磁盘驱动装置和薄膜磁头的制造方法
公开(公告)号：US07978438B2
公开(公告)日：2011-07-12
申请号：US11774912
申请日：2007-07-09
申请人： Naoki Ohta , Kosuke Tanaka , Takayasu Kanaya , Kazuki Sato , Yasufumi Uno , Tetsuya Kuwashima
发明人： Naoki Ohta , Kosuke Tanaka , Takayasu Kanaya , Kazuki Sato , Yasufumi Uno , Tetsuya Kuwashima
IPC分类号： G11B5/39
CPC分类号： G11B5/3967 , B82Y10/00 , B82Y25/00 , G11B5/3163 , G11B5/3909 , G11B5/3912 , G11B2005/3996
摘要： A thin-film magnetic head provided with at least one MR read head element includes a lower shield layer, an upper shield layer, and an MR layer formed between the lower shield layer and the upper shield layer. A profile of the upper shield layer, appeared at an ABS, has obtuse or rounded upper corners at end edges of the upper shield layer along a track-width direction.
摘要翻译：设置有至少一个MR读取头元件的薄膜磁头包括下屏蔽层，上屏蔽层和形成在下屏蔽层和上屏蔽层之间的MR层。出现在ABS处的上屏蔽层的轮廓在沿着轨道宽度方向的上屏蔽层的端部边缘处具有钝角或圆形的上角。

10. 发明授权

US07898775B2 Magnetoresistive device having bias magnetic field applying layer that includes two magnetic layers antiferromagnetically coupled to each other through intermediate layer 有权
标题翻译：具有偏磁场施加层的磁阻器件包括通过中间层彼此反铁磁耦合的两个磁性层
公开(公告)号：US07898775B2
公开(公告)日：2011-03-01
申请号：US11826290
申请日：2007-07-13
申请人： Kei Hirata , Shinji Hara , Takayasu Kanaya , Takeo Kagami
发明人： Kei Hirata , Shinji Hara , Takayasu Kanaya , Takeo Kagami
IPC分类号： G11B5/39
CPC分类号： G11B5/39
摘要： An MR element includes a free layer whose direction of magnetization changes in response to an external magnetic field. Two bias magnetic field applying layers are disposed adjacent to two side surfaces of the MR element. Each bias magnetic field applying layer includes a nonmagnetic intermediate layer, and a first magnetic layer and a second magnetic layer disposed to sandwich the intermediate layer. The first and second magnetic layers are antiferromagnetically exchange-coupled to each other through RKKY interaction.
摘要翻译： MR元件包括其磁化方向响应于外部磁场而变化的自由层。两个偏置磁场施加层邻近MR元件的两个侧表面设置。每个偏置磁场施加层包括非磁性中间层以及设置成夹持中间层的第一磁性层和第二磁性层。第一和第二磁性层通过RKKY相互作用彼此反铁磁交换耦合。

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