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51 条记录 (耗时 0.021 秒)

    Magnetic head slider with resistive heating film meandering in stacking direction
    1.
    发明授权
    Magnetic head slider with resistive heating film meandering in stacking direction 有权
    磁头滑块，电阻加热膜在堆叠方向上蜿蜒曲折

    公开(公告)号：US07911738B2

    公开(公告)日：2011-03-22

    申请号：US11788511

    申请日：2007-04-19

    申请人： Masayuki Kurita ,  Toshiya Shiramatsu ,  Masanori Tanabe ,  Takayoshi Ohtsu

    发明人： Masayuki Kurita ,  Toshiya Shiramatsu ,  Masanori Tanabe ,  Takayoshi Ohtsu

    IPC分类号： G11B5/31 ,  G11B5/60 ,  G11B5/56 ,  G11B5/39

    CPC分类号： G11B5/6005 ,  G11B5/6064

    摘要： According to embodiments of the present invention, a magnetic head slider provided with a heater disposed near a read element to adjust flying height, is required to increase a thermal protrusion by heat generated by the heater without increasing a thermal protrusion attributable to heat generated by a recording current or environmental temperature. A magnetic head slider includes a thin-film head unit including a read element, a heater having a thin heating line extended above and below the read element, a write element, and an insulating layer of alumina (Al2O3) or the like insulating those components. The thin heating line of the heater is formed from a thin resistive film of NiCr or the like. The thin heating line of the heater is extended above and below the read element so as to meander in a zigzag shape in a direction perpendicular to the device forming surface. The thin heating line has a thickness between about 0.1 and 0.2 μm, a width between about 1 and 3 μm, a length of about 100 μm, and a resistance between about 50 and 500 Ω.

    摘要翻译： 根据本发明的实施例，需要设置有设置在读取元件附近以调节飞行高度的加热器的磁头滑块，以增加由加热器产生的热量的热突起，而不增加由于由 记录当前或环境温度。 磁头滑块包括：薄膜头单元，其包括读取元件，具有在读取元件上方和下方延伸的薄加热线的加热器，写入元件以及绝缘这些元件的氧化铝（Al 2 O 3）等的绝缘层 。 加热器的细加热线由NiCr等的薄电阻膜形成。 加热器的细加热线在读取元件的上方和下方延伸，以便在垂直于器件形成表面的方向上以锯齿形弯曲。 薄加热线具有约0.1至0.2μm之间的厚度，约1至3μm的宽度，约100μm的长度和约50至500之间的电阻。

    Magnetic head slider and head gimbals assembly
    2.
    发明申请
    Magnetic head slider and head gimbals assembly 有权
    磁头滑块和头部万向节组件

    公开(公告)号：US20070247758A1

    公开(公告)日：2007-10-25

    申请号：US11788511

    申请日：2007-04-19

    申请人： Masayuki Kurita ,  Toshiya Shiramatsu ,  Masanori Tanabe ,  Takayoshi Ohtsu

    发明人： Masayuki Kurita ,  Toshiya Shiramatsu ,  Masanori Tanabe ,  Takayoshi Ohtsu

    IPC分类号： G11B5/60

    CPC分类号： G11B5/6005 ,  G11B5/6064

    摘要： According to embodiments of the present invention, a magnetic head slider provided with a heater disposed near a read element to adjust flying height, is required to increase a thermal protrusion by heat generated by the heater without increasing a thermal protrusion attributable to heat generated by a recording current or environmental temperature. A magnetic head slider includes a thin-film head unit including a read element, a heater having a thin heating line extended above and below the read element, a write element, and an insulating layer of alumina (Al2O3) or the like insulating those components. The thin heating line of the heater is formed from a thin resistive film of NiCr or the like. The thin heating line of the heater is extended above and below the read element so as to meander in a zigzag shape in a direction perpendicular to the device forming surface. The thin heating line has a thickness between about 0.1 and 0.2 μm, a width between about 1 and 3 μm, a length of about 100 μm, and a resistance between about 50 and 500Ω.

    摘要翻译： 根据本发明的实施例，需要设置有设置在读取元件附近以调节飞行高度的加热器的磁头滑块，以增加由加热器产生的热量的热突起，而不增加由于由 记录当前或环境温度。 磁头滑动器包括薄膜头单元，其包括读取元件，具有在读取元件上方和下方延伸的薄加热线的加热器，写入元件和氧化铝绝缘层（Al 2 > O 3等）绝缘这些部件。 加热器的细加热线由NiCr等的薄电阻膜形成。 加热器的细加热线在读取元件的上方和下方延伸，以便在垂直于器件形成表面的方向上以锯齿形弯曲。 薄加热线具有约0.1至0.2μm之间的厚度，约1至3μm之间的宽度，约100μm的长度和约50至500mega之间的电阻。

    CPP magnetoresistive head
    6.
    发明授权
    CPP magnetoresistive head 有权
    CPP磁阻头

    公开(公告)号：US08335057B2

    公开(公告)日：2012-12-18

    申请号：US12536255

    申请日：2009-08-05

    申请人： Masahiro Osugi ,  Takayoshi Ohtsu ,  Shigeo Fujita ,  Katsuro Watanabe ,  Koji Kataoka

    发明人： Masahiro Osugi ,  Takayoshi Ohtsu ,  Shigeo Fujita ,  Katsuro Watanabe ,  Koji Kataoka

    IPC分类号： G11B5/33

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

    摘要： According to one embodiment, a CPP magnetoresistive head includes a magnetoresistive film comprising a free layer above a non-magnetic intermediate layer and a fixed layer below the non-magnetic intermediate layer, wherein the magnetoresistive film is between a lower magnetic shield layer and an upper magnetic shield layer. The CPP magnetoresistive head also includes a domain control film on each side of the magnetoresistive film, wherein a sense current flows through the magnetoresistive film between the upper magnetic shield layer and the lower magnetic shield layer. The CPP magnetoresistive head also includes a high heat conductivity layer, and a heat dissipation layer having a high heat conductivity and a low linear expansion coefficient, the heat dissipation layer being disposed at the back in a device height direction of the magnetoresistive film and on each side of the domain control film.

    摘要翻译： 根据一个实施例，CPP磁阻磁头包括磁阻膜，该磁阻膜包括在非磁性中间层上方的自由层和位于非磁性中间层之下的固定层，其中磁阻膜位于下部磁屏蔽层和上部磁屏蔽层之间 磁屏蔽层。 CPP磁阻头还包括在磁阻膜的每一侧的畴控制膜，其中感测电流流过上磁屏蔽层和下磁屏蔽层之间的磁阻膜。 CPP磁阻头还包括高导热层和具有高导热性和低线性膨胀系数的散热层，散热层设置在磁阻膜的器件高度方向的背面，并且在每个 侧面的域控制膜。

    Magnetic head evaluation apparatus and method for manufacturing magnetic disk drive using the same
    8.
    发明申请
    Magnetic head evaluation apparatus and method for manufacturing magnetic disk drive using the same 有权
    磁头评价装置及使用其的磁盘驱动器的制造方法

    公开(公告)号：US20080019034A1

    公开(公告)日：2008-01-24

    申请号：US11880400

    申请日：2007-07-20

    申请人： Takayoshi Ohtsu

    发明人： Takayoshi Ohtsu

    IPC分类号： G11B21/02

    CPC分类号： G11B5/455

    摘要： Embodiments in accordance with the present invention provide a low-priced magnetic head evaluation apparatus capable of evaluating characteristics at high speed. According to one embodiment, a magnetic head evaluation apparatus includes a spindle motor, a VCM actuator as a head moving mechanism, and a ramp mechanism. A spindle motor used in a product HDD is used for the spindle motor. A VCM actuator used in the product HDD is used for the VCM actuator. A ramp mechanism used in the product HDD is used for the ramp mechanism. The apparatus further includes a non-contact type position detector such as a laser length measuring instrument. The non-contact type position detector irradiates a side surface of a load beam with a laser beam. An absolute position of the load beam over a magnetic disk is detected by detecting light reflected off the side surface of the load beam. Mounting of an HGA relative to the load beam is achieved by using a caulking hole in a mount plate.

    摘要翻译： 根据本发明的实施例提供一种能够高速评价特性的低价磁头评价装置。 根据一个实施例，磁头评估装置包括主轴电动机，作为磁头移动机构的VCM致动器和斜坡机构。 主轴电机使用产品HDD中使用的主轴电机。 产品HDD中使用的VCM执行器用于VCM执行器。 用于产品HDD的斜坡机构用于斜坡机构。 该装置还包括诸如激光长度测量仪器的非接触型位置检测器。 非接触型位置检测器用激光束照射负载光束的侧面。 通过检测从负载梁的侧表面反射的光来检测负载光束在磁盘上的绝对位置。 通过在安装板上使用铆接孔来实现HGA相对于负载梁的安装。

    Thin film magnetic head
    9.
    发明申请
    Thin film magnetic head 失效
    薄膜磁头

    公开(公告)号：US20070258171A1

    公开(公告)日：2007-11-08

    申请号：US11787098

    申请日：2007-04-12

    申请人： Takayoshi Ohtsu

    发明人： Takayoshi Ohtsu

    IPC分类号： G11B5/33

    CPC分类号： G11B5/314 ,  G11B5/102 ,  G11B5/486 ,  G11B5/6005 ,  G11B5/6064

    摘要： When exogenous noise is applied to the ground wire of a thin film magnetic head, crosstalk noise occurs in a lead line and a ground lines located near the ground wire. Embodiments in accordance with the present invention avoid this by providing a common terminal near the central portion of a thin film head portion. Write element terminals are connected to lines extending from a coil. Read element terminals are connected to lead wires extending from electrodes of a GMR element. A heater terminal is connected to a line extending from a heater. The common terminal is connected to a ground line of upper and lower shields via a resistor, to ground lines of electrodes via other resistors and to a ground line of upper and lower magnetic pole pieces of a write element via another resistor. A ground line of a slider, a ground line of the heater, and a ground line of the common terminal are all connected to a ground terminal.

    摘要翻译： 当外部噪声施加到薄膜磁头的接地线时，在引线和位于接地线附近的接地线上会发生串扰噪声。 根据本发明的实施例通过在薄膜头部的中心部分附近设置公共端子来避免这种情况。 写元件端子连接到从线圈延伸的线。 读元件端子连接到从GMR元件的电极延伸的引线。 加热器端子连接到从加热器延伸的线。 公共端子经由电阻器连接到上下屏蔽的接地线，经由其它电阻器连接到电极的接地线，并且经由另一个电阻器连接到写入元件的上部和下部磁极片的接地线。 滑块的接地线，加热器的接地线和公共端子的接地线都连接到接地端子。