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    Method of manufacturing a magnetic head
    1.
    发明申请
    Method of manufacturing a magnetic head 有权
    制造磁头的方法

    公开(公告)号：US20050102821A1

    公开(公告)日：2005-05-19

    申请号：US11013743

    申请日：2004-12-17

    申请人： Takeo Kagami ,  Kunihiro Ueda ,  Kentaro Nagai ,  Shunji Saruki

    发明人： Takeo Kagami ,  Kunihiro Ueda ,  Kentaro Nagai ,  Shunji Saruki

    IPC分类号： G11B5/127 ,  G11B5/31 ,  G11B5/39 ,  G11B5/40 ,  G11B5/48 ,  H04R31/00

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/3106 ,  G11B5/3116 ,  G11B5/3903 ,  G11B5/40 ,  G11B5/488 ,  G11B2005/3996 ,  Y10T29/49032 ,  Y10T29/49041 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

    摘要： A method of manufacturing a magnetic head manufactures a magnetic head having a base, and a laminate stacked on the base and including a magneto-resistive device. The method mechanically polishes a surface of a structure including the base and the laminate close to a magnetic recording medium, wherein the surface of the structure includes an end face of the laminate including an end face of the magneto-resistive device and a surface of the base. Next, the method selectively etches a first region on the surface of the structure close to the magnetic recording medium, wherein the first region includes the surface of the base but does not include the end face of the magneto-resistive device. Subsequently, the method entirely etches the surface of the structure close to the magnetic recording medium.

    摘要翻译： 制造磁头的方法制造具有底座的磁头和堆叠在基座上并包括磁阻装置的层叠体。 该方法将包括基底和层压板的结构的表面机械抛光到靠近磁记录介质的位置，其中该结构的表面包括层压体的端面，该端面包括该磁阻装置的端面和 基础。 接下来，该方法选择性地蚀刻靠近磁记录介质的结构表面上的第一区域，其中第一区域包括基底的表面，但不包括磁阻装置的端面。 随后，该方法完全蚀刻靠近磁记录介质的结构表面。

    Method of manufacturing a magnetic head
    2.
    发明授权
    Method of manufacturing a magnetic head 有权
    制造磁头的方法

    公开(公告)号：US07207100B2

    公开(公告)日：2007-04-24

    申请号：US11013743

    申请日：2004-12-17

    申请人： Takeo Kagami ,  Kunihiro Ueda ,  Kentaro Nagai ,  Shunji Saruki

    发明人： Takeo Kagami ,  Kunihiro Ueda ,  Kentaro Nagai ,  Shunji Saruki

    IPC分类号： G11B5/127 ,  H04R31/00

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/3106 ,  G11B5/3116 ,  G11B5/3903 ,  G11B5/40 ,  G11B5/488 ,  G11B2005/3996 ,  Y10T29/49032 ,  Y10T29/49041 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

    摘要： A method of manufacturing a magnetic head manufactures a magnetic head having a base, and a laminate stacked on the base and including a magneto-resistive device. The method mechanically polishes a surface of a structure including the base and the laminate close to a magnetic recording medium, wherein the surface of the structure includes an end face of the laminate including an end face of the magneto-resistive device and a surface of the base. Next, the method selectively etches a first region on the surface of the structure close to the magnetic recording medium, wherein the first region includes the surface of the base but does not include the end face of the magneto-resistive device. Subsequently, the method entirely etches the surface of the structure close to the magnetic recording medium.

    摘要翻译： 制造磁头的方法制造具有底座的磁头和堆叠在基座上并包括磁阻装置的层叠体。 该方法将包括基底和层压板的结构的表面机械抛光到靠近磁记录介质的位置，其中该结构的表面包括层压体的端面，该端面包括该磁阻装置的端面和 基础。 接下来，该方法选择性地蚀刻靠近磁记录介质的结构表面上的第一区域，其中第一区域包括基底的表面，但不包括磁阻装置的端面。 随后，该方法完全蚀刻靠近磁记录介质的结构表面。

    Magneto-resistive device with reduced susceptibility to ion beam damage
    3.
    发明授权
    Magneto-resistive device with reduced susceptibility to ion beam damage 失效
    具有降低的离子束损伤敏感性的磁阻器件

    公开(公告)号：US07057859B2

    公开(公告)日：2006-06-06

    申请号：US10600444

    申请日：2003-06-23

    申请人： Takeo Kagami ,  Kazuki Sato ,  Takayasu Kanaya ,  Shunji Saruki ,  Tetsuya Kuwashima

    发明人： Takeo Kagami ,  Kazuki Sato ,  Takayasu Kanaya ,  Shunji Saruki ,  Tetsuya Kuwashima

    IPC分类号： G11B5/39

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/3106 ,  G11B5/313 ,  G11B5/3133 ,  G11B5/3903 ,  G11B5/3909 ,  G11B5/3967 ,  G11B2005/3996

    摘要： A magneto-resistive device is improved in characteristics by removing a surface oxide film to reduce the resistance and reducing an ion beam damage. The magneto-resistive device has a magneto-resistive layer which comprises a tunnel barrier layer, an underlying pinned layer, and an overlying free layer. A non-magnetic layer is formed on the free layer for protection. A composite-layer film comprised of an insulating layer and a damage reducing layer is formed in contact with an effective region which is effectively involved in detection of magnetism in the magneto-resistive layer without overlapping with the effective region. The damage reducing layer is made of a material which includes at least one element, the atomic weight of which is larger than that of silicon. The insulating layer and damage reducing layer do not constitute a magnetic domain control layer for applying a biasing magnetic field to the free layer.

    摘要翻译： 通过去除表面氧化膜以降低电阻并减少离子束损伤，改善了磁阻元件的特性。 磁阻装置具有磁阻层，其包括隧道阻挡层，下面的被钉扎层和上覆自由层。 在自由层上形成非磁性层以进行保护。 形成与绝缘层和损伤减少层组成的复合层膜与有效区域接触，该有效区域有效地涉及磁阻层中的磁性检测，而不与有效区域重叠。 损伤减少层由包括至少一种元素的材料制成，其原子量大于硅的原子量。 绝缘层和损伤降低层不构成用于向自由层施加偏置磁场的磁畴控制层。

    Magnetic head, head suspension assembly and magnetic disk apparatus
    7.
    发明申请
    Magnetic head, head suspension assembly and magnetic disk apparatus 有权
    磁头，头悬挂组件和磁盘设备

    公开(公告)号：US20050201018A1

    公开(公告)日：2005-09-15

    申请号：US11067643

    申请日：2005-02-28

    申请人： Kentaro Nagai ,  Takeo Kagami ,  Noriaki Kasahara ,  Naoki Ohta ,  Satoshi Miura

    发明人： Kentaro Nagai ,  Takeo Kagami ,  Noriaki Kasahara ,  Naoki Ohta ,  Satoshi Miura

    IPC分类号： G11B5/39 ,  G11B5/127 ,  G11B5/33

    CPC分类号： G11B5/3912 ,  B82Y10/00 ,  B82Y25/00 ,  G11B5/3909 ,  G11B2005/3996

    摘要： A magnetic head is provided for further improving a correlation between the dynamic characteristics and static characteristics. A lower magnetic shield layer, a magneto-resistive layer, and an upper magnetic shield layer are laminated on a base in this order. A lower lead layer and an upper lead layer apply a sense current to the magneto-resistive layer in a direction substantially perpendicular to the film plane thereof through the magnetic shield layers. The lower magnetic shield layer and upper magnetic shield layer have their shapes and sizes which substantially exactly overlap each other, when viewed in a laminating direction. The lower lead layer is electrically connected to the lower magnetic shield layer. At least a portion of the lower lead layer closer to the lower magnetic shield layer is made of a non-magnetic conductive material. The upper lead layer is electrically connected to the upper magnetic shield layer. At least a portion of the upper lead layer closer to the upper magnetic shield layer is made of a non-magnetic conductive material.

    摘要翻译： 提供磁头用于进一步改善动态特性和静态特性之间的相关性。 下部磁屏蔽层，磁阻层和上部磁屏蔽层依次层压在基座上。 下引线层和上引线层通过磁屏蔽层在大致垂直于其膜平面的方向上向磁阻层施加感测电流。 当从层叠方向观察时，下磁屏蔽层和上磁屏蔽层具有基本精确地彼此重叠的形状和尺寸。 下引线层电连接到下磁屏蔽层。 下引线层的更靠近下磁屏蔽层的至少一部分由非磁性导电材料制成。 上引线层电连接到上磁屏蔽层。 上导电层的至少一部分靠近上磁屏蔽层由非磁性导电材料制成。

    CCP Head having leads of substantially the same size and shape and not intervening between a shield layer and a MR element
    8.
    发明授权
    CCP Head having leads of substantially the same size and shape and not intervening between a shield layer and a MR element 有权
    CCP头部具有基本上相同尺寸和形状的引线，并且不插入屏蔽层和MR元件之间

    公开(公告)号：US07489481B2

    公开(公告)日：2009-02-10

    申请号：US11067643

    申请日：2005-02-28

    申请人： Kentaro Nagai ,  Takeo Kagami ,  Noriaki Kasahara ,  Naoki Ohta ,  Satoshi Miura

    发明人： Kentaro Nagai ,  Takeo Kagami ,  Noriaki Kasahara ,  Naoki Ohta ,  Satoshi Miura

    IPC分类号： G11B5/33 ,  G11B5/127

    CPC分类号： G11B5/3912 ,  B82Y10/00 ,  B82Y25/00 ,  G11B5/3909 ,  G11B2005/3996

    摘要： A magnetic head is provided for further improving a correlation between the dynamic characteristics and static characteristics. A lower magnetic shield layer, a magneto-resistive layer, and an upper magnetic shield layer are laminated on a base in this order. A lower lead layer and an upper lead layer apply a sense current to the magneto-resistive layer in a direction substantially perpendicular to the film plane thereof through the magnetic shield layers. The lower magnetic shield layer and upper magnetic shield layer have their shapes and sizes which substantially exactly overlap each other, when viewed in a laminating direction. The lower lead layer is electrically connected to the lower magnetic shield layer. At least a portion of the lower lead layer closer to the lower magnetic shield layer is made of a non-magnetic conductive material. The upper lead layer is electrically connected to the upper magnetic shield layer. At least a portion of the upper lead layer closer to the upper magnetic shield layer is made of a non-magnetic conductive material.

    摘要翻译： 提供磁头用于进一步改善动态特性和静态特性之间的相关性。 下部磁屏蔽层，磁阻层和上部磁屏蔽层依次层压在基座上。 下引线层和上引线层通过磁屏蔽层在大致垂直于其膜平面的方向上向磁阻层施加感测电流。 当从层叠方向观察时，下磁屏蔽层和上磁屏蔽层具有基本精确地彼此重叠的形状和尺寸。 下引线层电连接到下磁屏蔽层。 下引线层的更靠近下磁屏蔽层的至少一部分由非磁性导电材料制成。 上引线层电连接到上磁屏蔽层。 上导电层的至少一部分靠近上磁屏蔽层由非磁性导电材料制成。

    Magnetic head and method of manufacturing same, head suspension assembly and magnetic disk apparatus
    9.
    发明授权
    Magnetic head and method of manufacturing same, head suspension assembly and magnetic disk apparatus 有权
    磁头及其制造方法，头悬挂组件和磁盘装置

    公开(公告)号：US07312961B2

    公开(公告)日：2007-12-25

    申请号：US10944786

    申请日：2004-09-21

    申请人： Takeo Kagami ,  Tetsuya Kuwashima ,  Kentaro Nagai

    发明人： Takeo Kagami ,  Tetsuya Kuwashima ,  Kentaro Nagai

    IPC分类号： G11B5/33 ,  G11B5/127

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/3906 ,  G11B5/3909 ,  Y10T29/49032 ,  Y10T29/49041 ,  Y10T29/49043

    摘要： A magnetic head has less variations in the resistance of a magneto-resistive device before and after the magnetic head is left in a high temperature environment so as to have higher stability of the characteristics of the magnetic head against a high temperature environment. A TMR device includes a tunnel barrier layer made of an oxide layer. A DLC film serving as a protection film and an underlying layer therefor are formed on an end face of the TMR device on an air bearing surface side. A layer made of an oxide of a metal or an oxide of a semiconductor is formed between the underlying layer and the end face of the tunnel barrier layer on the air bearing surface side to be in contact with the end face of the tunnel barrier layer.

    摘要翻译： 磁头在磁头在高温环境中放置之前和之后的磁阻装置的电阻变化较小，从而具有较高的磁头特性对高温环境的稳定性。 TMR器件包括由氧化物层制成的隧道势垒层。 在空气轴承表面侧的TMR装置的端面上形成用作保护膜的DLC膜及其下层。 在空气支承面侧的隧道势垒层的下层与端面之间形成由金属的氧化物或半导体的氧化物构成的层，与隧道势垒层的端面接触。

    Magnetic head and method of manufacturing same, head suspension assembly and magnetic disk apparatus
    10.
    发明申请
    Magnetic head and method of manufacturing same, head suspension assembly and magnetic disk apparatus 有权
    磁头及其制造方法，头悬挂组件和磁盘装置

    公开(公告)号：US20050068691A1

    公开(公告)日：2005-03-31

    申请号：US10944786

    申请日：2004-09-21

    申请人： Takeo Kagami ,  Tetsuya Kuwashima ,  Kentaro Nagai

    发明人： Takeo Kagami ,  Tetsuya Kuwashima ,  Kentaro Nagai

    IPC分类号： G11B5/127 ,  G11B5/33 ,  G11B5/39

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/3906 ,  G11B5/3909 ,  Y10T29/49032 ,  Y10T29/49041 ,  Y10T29/49043

    摘要： A magnetic head has less variations in the resistance of a magneto-resistive device before and after the magnetic head is left in a high temperature environment so as to have higher stability of the characteristics of the magnetic head against a high temperature environment. A TMR device includes a tunnel barrier layer made of an oxide layer. A DLC film serving as a protection film and an underlying layer therefor are formed on an end face of the TMR device on an air bearing surface side. A layer made of an oxide of a metal or an oxide of a semiconductor is formed between the underlying layer and the end face of the tunnel barrier layer on the air bearing surface side to be in contact with the end face of the tunnel barrier layer.

    摘要翻译： 磁头在磁头在高温环境中放置之前和之后的磁阻装置的电阻变化较小，从而具有较高的磁头特性对高温环境的稳定性。 TMR器件包括由氧化物层制成的隧道势垒层。 在空气轴承表面侧的TMR装置的端面上形成用作保护膜的DLC膜及其下层。 在空气支承面侧的隧道势垒层的下层与端面之间形成由金属的氧化物或半导体的氧化物构成的层，与隧道势垒层的端面接触。