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公开(公告)号：US08552328B2
公开(公告)日：2013-10-08
申请号：US11966025
申请日：2007-12-28
IPC分类号： G11B5/37
CPC分类号： G11B5/40 , B82Y10/00 , B82Y25/00 , G01R33/093 , G01R33/098 , G11B5/3906 , G11B2005/0016 , G11B2005/3996
摘要： The invention provides a method for fixing up the deterioration of a magneto-resistive effect device. A hard disk system is provided in it with a head heating means for heating a thin-film magnetic head, and by that head heating means, a defective site of the magneto-resistive effect device, which occurs as the hard disk system is in operation and is confined in a quasi-stable state, is fixed up in such a way as to return back to its own normal stable state. Thus, the deteriorated site of the magneto-resistive effect device (reproducing device) in the thin-film magnetic head, which is caused by the so-called thermal asperity as the hard disk system is in operation, is fixed up while it remains built in the hard disk system, i.e., without dismantling the hard disk system.
摘要翻译： 本发明提供了一种用于固定磁阻效应装置的劣化的方法。 在其中设置有用于加热薄膜磁头的磁头加热装置和由该磁头加热装置在磁盘系统运行时发生的磁阻效应装置的缺陷部位的硬盘系统 并且被限制在准稳定状态，被固定为使其返回到其自己的正常稳定状态。 因此，由硬盘系统所谓的热不均匀性引起的薄膜磁头中的磁阻效应器件（再现装置）的劣化位置在其保持构建的同时被固定 在硬盘系统中，即不拆卸硬盘系统。
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公开(公告)号：US20090168255A1
公开(公告)日：2009-07-02
申请号：US11966025
申请日：2007-12-28
IPC分类号： G11B5/33
CPC分类号： G11B5/40 , B82Y10/00 , B82Y25/00 , G01R33/093 , G01R33/098 , G11B5/3906 , G11B2005/0016 , G11B2005/3996
摘要： The invention provides a method for fixing up the deterioration of a magneto-resistive effect device. A hard disk system is provided in it with a head heating means for heating a thin-film magnetic head, and by that head heating means, a defective site of the magneto-resistive effect device, which occurs as the hard disk system is in operation and is confined in a quasi-stable state, is fixed up in such a way as to return back to its own normal stable state. Thus, the deteriorated site of the magneto-resistive effect device (reproducing device) in the thin-film magnetic head, which is caused by the so-called thermal asperity as the hard disk system is in operation, is fixed up while it remains built in the hard disk system, i.e., without dismantling the hard disk system.
摘要翻译： 本发明提供了一种用于固定磁阻效应装置的劣化的方法。 在其中设置有用于加热薄膜磁头的磁头加热装置和由该磁头加热装置在磁盘系统运行时发生的磁阻效应装置的缺陷部位的硬盘系统 并且被限制在准稳定状态，被固定为使其返回到其自己的正常稳定状态。 因此，由硬盘系统所谓的热不均匀性引起的薄膜磁头中的磁阻效应器件（再现装置）的劣化位置在其保持构建的同时被固定 在硬盘系统中，即不拆卸硬盘系统。
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3.发明授权公开(公告)号：US07780344B2
公开(公告)日：2010-08-24
申请号：US11860811
申请日：2007-09-25
申请人： Takumi Yanagisawa , Naoki Ohta , Yosuke Antoku
发明人： Takumi Yanagisawa , Naoki Ohta , Yosuke Antoku
CPC分类号： G01R31/2849 , B82Y25/00 , G01R31/311 , G01R33/093 , G01R33/098
摘要： The estimation method of the invention for estimating the deteriorations of a magneto-resistive effect device by heat shocks involves applying heat shocks by laser irradiation to a structure including a thin-film magnetic head comprising a magneto-resistive effect device to propagate them to the magneto-resistive effect device, thereby causing the deteriorations of the magneto-resistive effect device. Thus, (1) the deterioration mode phenomenon of “local overheating plus vibration” can be imitated in a simple yet very approximate state so that a device likely to undergo characteristics deteriorations due to the thermal asperity problem can be detected early at an initial fabrication process stage, and (2) what specifications a head device structure less likely to offer the thermal asperity problem is in can be judged at a product development stage.
摘要翻译： 用于通过热冲击来估计磁阻效应器件的劣化的本发明的估计方法包括通过激光照射对包括由磁阻效应器件构成的薄膜磁头的结构进行热冲击以将它们传播到磁 电阻效应器件，从而导致磁阻效应器件的劣化。 因此，（1）“局部过热加振动”的劣化模式现象可以在简单但非常近似的状态下被模仿，从而可以在初始制造过程中早期检测到由于热不均匀性问题而容易发生特性劣化的装置 阶段，（2）可以在产品开发阶段判断头部器件结构不太可能提供热凹凸问题的规格。
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公开(公告)号：US20090080491A1
公开(公告)日：2009-03-26
申请号：US11860811
申请日：2007-09-25
申请人： Takumi Yanagisawa , Naoki Ohta , Yosuke Antoku
发明人： Takumi Yanagisawa , Naoki Ohta , Yosuke Antoku
IPC分类号： G01N25/72
CPC分类号： G01R31/2849 , B82Y25/00 , G01R31/311 , G01R33/093 , G01R33/098
摘要： The estimation method of the invention for estimating the deteriorations of a magneto-resistive effect device by heat shocks involves applying heat shocks by laser irradiation to a structure including a thin-film magnetic head comprising a magneto-resistive effect device to propagate them to the magneto-resistive effect device, thereby causing the deteriorations of the magneto-resistive effect device. Thus, (1) the deterioration mode phenomenon of “local overheating plus vibration” can be imitated in a simple yet very approximate state so that a device likely to undergo characteristics deteriorations due to the thermal asperity problem can be detected early at an initial fabrication process stage, and (2) what specifications a head device structure less likely to offer the thermal asperity problem is in can be judged at a product development stage.
摘要翻译： 用于通过热冲击来估计磁阻效应器件的劣化的本发明的估计方法包括通过激光照射对包括由磁阻效应器件构成的薄膜磁头的结构进行热冲击以将它们传播到磁 电阻效应器件，从而导致磁阻效应器件的劣化。 因此，（1）“局部过热加振动”的劣化模式现象可以在简单但非常近似的状态下被模仿，从而可以在初始制造过程中早期检测到由于热不均匀性问题而容易发生特性劣化的装置 阶段，（2）可以在产品开发阶段判断头部器件结构不太可能提供热凹凸问题的规格。
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5.发明授权Composite type thin-film magnetic head with reduced capacitance between leads for read and write head elements 有权复合型薄膜磁头，用于读写头元件引线之间的电容降低公开(公告)号：US07359149B2
公开(公告)日：2008-04-15
申请号：US11079735
申请日：2005-03-15
CPC分类号： G11B5/3967
摘要： A composite type thin-film magnetic head is provided, which comprises: a write head element; a pair of terminal pads for the write head element; a pair of lead conductors for the write head element, electrically connecting the write head element to the pair of terminal pads for the write head element; a read head element; a pair of terminal pads for the read head element; and a pair of lead conductors for the read head element, electrically connecting the read head element to the pair of terminal pads for the read head element. The pair of lead conductors for the write head element and the pair of lead conductors for the read head element are formed into patterns that have no overlapped portions with each other through only an insulating layer.
摘要翻译： 提供一种复合型薄膜磁头，其包括：写头元件; 用于写入头元件的一对端子焊盘; 用于写头元件的一对引线导体，用于将写入头元件电连接到用于写入头元件的一对端子焊盘; 读头元件; 用于读头元件的一对端子焊盘; 以及用于读头元件的一对引线导体，用于将读头元件电连接到用于读头元件的一对端子焊盘。 用于读头元件的写头元件和一对引线导体的一对引线导体被形成为仅通过绝缘层彼此不重叠的图案。
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公开(公告)号：US20050219751A1
公开(公告)日：2005-10-06
申请号：US11079735
申请日：2005-03-15
CPC分类号： G11B5/3967
摘要： A composite type thin-film magnetic head is provided, which comprises: a write head element; a pair of terminal pads for the write head element; a pair of lead conductors for the write head element, electrically connecting the write head element to the pair of terminal pads for the write head element; a read head element; a pair of terminal pads for the read head element; and a pair of lead conductors for the read head element, electrically connecting the read head element to the pair of terminal pads for the read head element. The pair of lead conductors for the write head element and the pair of lead conductors for the read head element are formed into patterns that have no overlapped portions with each other through only an insulating layer.
摘要翻译： 提供一种复合型薄膜磁头，其包括：写头元件; 用于写入头元件的一对端子焊盘; 用于写头元件的一对引线导体，用于将写入头元件电连接到用于写入头元件的一对端子焊盘; 读头元件; 用于读头元件的一对端子焊盘; 以及用于读头元件的一对引线导体，用于将读头元件电连接到用于读头元件的一对端子焊盘。 用于读头元件的写头元件和一对引线导体的一对引线导体被形成为仅通过绝缘层彼此不重叠的图案。
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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。
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公开(公告)号：US20080266718A1
公开(公告)日：2008-10-30
申请号：US11740015
申请日：2007-04-25
申请人： Shunji Saruki , Takumi Uesugi , Tsuyoshi Umehara , Yosuke Antoku
发明人： Shunji Saruki , Takumi Uesugi , Tsuyoshi Umehara , Yosuke Antoku
CPC分类号： G01R33/1207 , B82Y10/00 , B82Y25/00 , G01R33/093 , G11B5/3906 , G11B5/3909 , G11B5/455
摘要： A testing method of a thin-film magnetic head has an MR read head element with a multi-layered structure including a magnetization-fixed layer, a magnetization-free layer and a nonmagnetic intermediate layer or a tunnel barrier layer sandwiched between the magnetization-fixed layer and the magnetization-free layer. The method includes a step of feeding through the MR read head element a sense current, a step of measuring non-signal output versus frequency characteristics of the MR read head element over a frequency range that covers at least FMR of the magnetization-fixed layer, and a step of discriminating whether the thin-film magnetic head is a head providing high-temperature noises by comparing a frequency of a peak of the non-signal output resulting from FMR of the magnetization-fixed layer with a threshold.
摘要翻译： 薄膜磁头的测试方法具有具有包括磁化固定层，无磁化层和非磁性中间层的多层结构的MR读取头元件或夹在磁化固定的磁化固定层之间的隧道势垒层 层和无磁化层。 该方法包括通过MR读取头元件馈送感测电流的步骤，在覆盖磁化固定层的至少FMR的频率范围上测量MR读取头元件的非信号输出与频率特性的步骤， 以及通过将由磁化固定层的FMR产生的非信号输出的峰值的频率与阈值进行比较来鉴别薄膜磁头是否是提供高温噪声的磁头的步骤。
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公开(公告)号：US07352524B2
公开(公告)日：2008-04-01
申请号：US11269604
申请日：2005-11-09
申请人： Hiroshi Kiyono , Yosuke Antoku
发明人： Hiroshi Kiyono , Yosuke Antoku
IPC分类号： G11B21/02
CPC分类号： G11B5/6064 , G11B5/6005
摘要： A magnetic disk drive comprises a recording medium, a slider, and an alignment device for aligning the slider with respect to the medium. No film made of liquid lubricant is disposed on the surface of the medium. The slider incorporates: a slider main body including a thin-film magnetic head element disposed near a medium facing surface; and a protection film made of a tetrahedral amorphous carbon film for protecting the medium facing surface. The alignment device makes the slider retreat from the surface of the medium when the medium is stopped, and makes the slider face toward the surface of the medium when the medium is rotated. The magnetic disk drive further comprises a distance control device for controlling the distance between the medium and the thin-film magnetic head element.
摘要翻译： 磁盘驱动器包括记录介质，滑块和用于使滑块相对于介质对准的对准装置。 在介质的表面上不设置由液体润滑剂制成的膜。 滑块包括：滑块主体，其包括设置在面向介质的表面附近的薄膜磁头元件; 以及由用于保护面向介质的表面的四面体非晶碳膜制成的保护膜。 当介质停止时，对准装置使滑块从介质的表面退回，并且当介质旋转时使滑块面向介质的表面。 磁盘驱动器还包括用于控制介质和薄膜磁头元件之间的距离的距离控制装置。
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10.发明授权Magnetic head with protective layer and a protective film removal method for the magnetic head 有权具有保护层的磁头和用于磁头的保护膜去除方法公开(公告)号：US08213117B2
公开(公告)日：2012-07-03
申请号：US12794148
申请日：2010-06-04
申请人： Yosuke Antoku , Norio Takahashi , Katsuki Kurihara
发明人： Yosuke Antoku , Norio Takahashi , Katsuki Kurihara
IPC分类号： G11B5/127
CPC分类号： G11B5/6011 , G11B5/3163 , G11B5/607 , Y10T29/49027
摘要： A magnetic head includes a reproducing element for reproducing information recorded on a magnetic recording medium, a recording element for recording information on the magnetic recording medium, and a heating resistor. The magnetic head has a magnetic medium-facing surface on which the reproducing element and the recording element are exposed.The magnetic head is obtained as follows: (1) a protective film is formed to cover the magnetic medium-facing surface; (2) within a case of a magnetic recording/reproducing apparatus including the magnetic recording medium, the magnetic medium-facing surface is opposed to a surface of the magnetic recording medium; (3) the heating resistor is allowed to generate heat by power supply while rotating the magnetic recording medium, wherein thermal expansion due to the heat generation causes bulging of the magnetic medium-facing surface, bringing the protective film into contact with the magnetic recording medium; and (4) a portion of the protective film covering at least one of the reproducing element and the recording element is removed by scraping.
摘要翻译： 磁头包括用于再现记录在磁记录介质上的信息的再现元件，用于在磁记录介质上记录信息的记录元件和加热电阻器。 磁头具有面向再现元件和记录元件的金属介质表面。 磁头如下获得：（1）形成保护膜以覆盖面向磁介质的表面; （2）在包括磁记录介质的磁记录/再现装置的情况下，磁介质面向表面与磁记录介质的表面相对; （3）使加热电阻器在旋转磁记录介质的同时通过供电产生热量，其中由于发热引起的热膨胀导致磁介质面向表面的膨胀，使保护膜与磁记录介质接触 ; 和（4）通过刮擦除去覆盖再现元件和记录元件中的至少一个的保护膜的一部分。
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