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1.发明申请Method of inspecting thin-film magnetic head and method of making thin-film magnetic head 有权检查薄膜磁头的方法和制造薄膜磁头的方法公开(公告)号：US20050073300A1
公开(公告)日：2005-04-07
申请号：US10919408
申请日：2004-08-17
CPC分类号： G11B5/3903 , G11B5/3116 , G11B5/3166 , G11B5/455
摘要： In the method of inspecting a thin-film magnetic head, a thin-film magnetic head provided with a magnetoresistive film having a free layer whose magnetization direction changes depending on an external magnetic field and ferromagnetic layers for applying a bias magnetic field to the free layer is prepared. Then, a DC magnetic field is applied to the ferromagnetic layers in the bias magnetic field applying direction. Subsequently, an AC magnetic field is applied to the ferromagnetic layers in the bias magnetic field applying direction. Thereafter, an external magnetic field is applied to the magnetoresistive film while supplying a current thereto, and a property of the thin-film magnetic head such as asymmetry and reproducing output is inspected.
摘要翻译： 在检查薄膜磁头的方法中，设置有具有磁化方向根据外部磁场而变化的自由层的磁阻膜的薄膜磁头和用于向自由层施加偏置磁场的铁磁层 准备好了 然后，在偏磁场施加方向上对铁磁层施加直流磁场。 随后，在偏磁场施加方向上对铁磁层施加交流磁场。 此后，在向其施加电流的同时向磁阻膜施加外部磁场，并检查诸如不对称和再现输出之类的薄膜磁头的性质。
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2.发明授权Method of inspecting thin-film magnetic head and method of making thin-film magnetic head 有权检查薄膜磁头的方法和制造薄膜磁头的方法公开(公告)号：US07075294B2
公开(公告)日：2006-07-11
申请号：US10919408
申请日：2004-08-17
IPC分类号： G01R33/12
CPC分类号： G11B5/3903 , G11B5/3116 , G11B5/3166 , G11B5/455
摘要： In the method of inspecting a thin-film magnetic head, a thin-film magnetic head provided with a magnetoresistive film having a free layer whose magnetization direction changes depending on an external magnetic field and ferromagnetic layers for applying a bias magnetic field to the free layer is prepared. Then, a DC magnetic field is applied to the ferromagnetic layers in the bias magnetic field applying direction. Subsequently, an AC magnetic field is applied to the ferromagnetic layers in the bias magnetic field applying direction. Thereafter, an external magnetic field is applied to the magnetoresistive film while supplying a current thereto, and a property of the thin-film magnetic head such as asymmetry and reproducing output is inspected.
摘要翻译： 在检查薄膜磁头的方法中，设置有具有磁化方向根据外部磁场而变化的自由层的磁阻膜的薄膜磁头和用于向自由层施加偏置磁场的铁磁层 准备好了 然后，在偏磁场施加方向上对铁磁层施加直流磁场。 随后，在偏磁场施加方向上对铁磁层施加交流磁场。 此后，在向其施加电流的同时向磁阻膜施加外部磁场，并检查诸如不对称和再现输出之类的薄膜磁头的性质。
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3.发明申请Thin-film magnetic head with a heater, head gimbal assembly with the thin-film magnetic head and magnetic disk drive apparatus with the head gimbal assembly 有权具有加热器的薄膜磁头，具有薄膜磁头的磁头万向架组件和磁头万向架组件的磁盘驱动装置公开(公告)号：US20060007594A1
公开(公告)日：2006-01-12
申请号：US11128192
申请日：2005-05-13
申请人： Tsuyoshi Umehara , Norikazu Ota , Katsumichi Tagami , Hiroki Matsukuma , Nobuya Oyama , Soji Koide , Yoshiyuki Mizoguchi , Kazuhide Yamada
发明人： Tsuyoshi Umehara , Norikazu Ota , Katsumichi Tagami , Hiroki Matsukuma , Nobuya Oyama , Soji Koide , Yoshiyuki Mizoguchi , Kazuhide Yamada
CPC分类号： G11B5/6064 , G11B5/3133
摘要： The present invention relates to a thin-film magnetic head with a heater. A thin-film magnetic head includes a substrate, a magnetic read head element that has a shield area and is formed on the substrate, a magnetic write head element that has a pole area and is formed on the opposite side of the substrate with respect to the magnetic read head element, an overcoat layer that covers the magnetic read head element and the magnetic write head element and is formed on the substrate, a heater that heats at least during the magnetic read head element or the magnetic write head element in operation and is formed in the overcoat layer, and a slit area that splits the shield area in a shield length direction and is made of lower thermal conductivity material than the one of the shield area.
摘要翻译： 本发明涉及具有加热器的薄膜磁头。 薄膜磁头包括基板，具有屏蔽区域并形成在基板上的磁读头元件，具有磁极区域的磁写头元件，并相对于基板形成在基板的相对侧上 磁读头元件，覆盖磁读头元件和磁写头元件并形成在基片上的外涂层，至少在磁读头元件或写磁头元件工作期间加热的加热器，以及 形成在外涂层中，以及狭缝区域，其在屏蔽长度方向上分割屏蔽区域，并且由比该屏蔽区域中的一个更低的导热性材料制成。
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4.发明申请Thin-film magnetic head with heater in overcoat multilayer, head gimbal assembly with thin-film magnetic head, and magnetic disk drive apparatus with head gimbal assembly 有权薄膜磁头带加热器的外罩多层，磁头万向架组件，带薄膜磁头，磁盘驱动装置带头万向架组件公开(公告)号：US20050270694A1
公开(公告)日：2005-12-08
申请号：US11128305
申请日：2005-05-13
申请人： Tsuyoshi Umehara , Norikazu Ota , Katsumichi Tagami , Hiroki Matsukuma , Nobuya Oyama , Soji Koide , Yoshiyuki Mizoguchi , Kazuhide Yamada
发明人： Tsuyoshi Umehara , Norikazu Ota , Katsumichi Tagami , Hiroki Matsukuma , Nobuya Oyama , Soji Koide , Yoshiyuki Mizoguchi , Kazuhide Yamada
CPC分类号： G11B5/581 , G11B5/3106 , G11B5/3136 , G11B5/314 , G11B5/6064
摘要： A thin-film magnetic head according to the present invention comprises: a substrate; at least one magnetic head element formed on the substrate; an overcoat multilayer composed of a plurality of overcoat layers, formed on the substrate so as to cover the at least one magnetic head element; and at least one heating element to be heated at least during operation of the at least one magnetic head element, the at least one heating element provided in the overcoat multilayer, and a coefficient of thermal expansion of an overcoat layer located farthest from the substrate in the overcoat multilayer being smaller than a coefficient of thermal expansion of an overcoat layer located closest to the substrate in the overcoat multilayer.
摘要翻译： 根据本发明的薄膜磁头包括：基板; 形成在所述基板上的至少一个磁头元件; 形成在所述基板上以覆盖所述至少一个磁头元件的由多个外涂层构成的外涂层多层; 以及至少一个加热元件，至少在至少一个磁头元件的操作期间被加热，所述至少一个加热元件设置在外涂层多层中，以及位于最远离基底的外涂层的热膨胀系数 外涂层多层比在外涂层多层中最靠近基底的外涂层的热膨胀系数小。
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公开(公告)号：US07924533B2
公开(公告)日：2011-04-12
申请号：US11740530
申请日：2007-04-26
申请人： Kazuhiko Maejima , Yoshiyuki Mizoguchi , Nobuya Oyama , Hiraku Hirabayashi , Hiroki Matsukuma , Naoto Matono
发明人： Kazuhiko Maejima , Yoshiyuki Mizoguchi , Nobuya Oyama , Hiraku Hirabayashi , Hiroki Matsukuma , Naoto Matono
CPC分类号： G11B5/584 , G11B5/00821
摘要： A multi-channel head includes a substrate, a plurality of write elements arranged in a track width direction above the substrate in a lamination direction, and a plurality of read elements arranged in the track width direction above the plurality of write elements in the lamination direction. At least one of the plurality of write elements is offset from the others in the lamination direction. All the plurality of read elements are located higher than an uppermost one of the plurality of write elements in the lamination direction.
摘要翻译： 多通道头包括基板，沿层叠方向布置在基板上方的轨道宽度方向上的多个写入元件，以及沿层叠方向在多个写入元件上方的轨道宽度方向上布置的多个读取元件 。 多个写入元件中的至少一个在层叠方向上偏离其它写入元件。 所有多个读取元件位于层叠方向上比多个写入元件中最上面的一个更高位置。
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6.发明授权Exposure mask, method of forming resist pattern and method of forming thin film pattern 失效曝光掩模，形成抗蚀剂图案的方法和形成薄膜图案的方法公开(公告)号：US07604910B2
公开(公告)日：2009-10-20
申请号：US11705119
申请日：2007-02-12
申请人： Akifumi Kamijima , Hiroki Matsukuma
发明人： Akifumi Kamijima , Hiroki Matsukuma
摘要： An exposure mask capable of improving resolution is provided. An exposure mask includes one slit-shaped main transmission region and three pairs of slit-shaped auxiliary transmission regions arranged in order in a direction perpendicular to the longitudinal direction of the main transmission region, each pair of auxiliary transmission regions facing each other with the main transmission region in between. Compared to the case where two or less pairs of auxiliary transmission regions are included, light intensity contrast becomes higher in an end portion in a slit width direction of the main transmission region by exposing and developing a resist film through the use of the exposure mask, so the exposed width of the resist film is narrowed.
摘要翻译： 提供了能够提高分辨率的曝光掩模。 曝光掩模包括一个狭缝状的主透射区域和在与主透射区域的纵向方向垂直的方向上依次布置的三对狭缝状的辅助传输区域，每对辅助传输区域彼此面对主体 传输区域之间。 与包含两个或更少对的辅助透射区域的情况相比，通过使用曝光掩模曝光和显影抗蚀剂膜，在主透射区域的狭缝宽度方向的端部中的光强度对比度变高， 因此抗蚀膜的曝光宽度变窄。
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公开(公告)号：US07326102B2
公开(公告)日：2008-02-05
申请号：US10938578
申请日：2004-09-13
申请人： Ryuji Fujii , Hiroki Matsukuma
发明人： Ryuji Fujii , Hiroki Matsukuma
CPC分类号： B24B37/30 , B24B37/048 , Y10T29/49048
摘要： A lapping method and apparatus is provided that increases the yield rate in the magnetic head slider manufacturing process. According to the invention, an apparatus for lapping thin film magnetic heads includes a jig block and a lapping plate. The jig block includes a first jig which holds a bar to be lapped, and second jig which holds a member for load sharing. The lapping plate is movable relative to the first jig and the second jig, and is contactable with the surface to be lapped of the bar held by the first jig and the member for load sharing held by the second jig for lapping.
摘要翻译： 提供了提高磁头滑动器制造过程中的屈服率的研磨方法和装置。 根据本发明，用于研磨薄膜磁头的装置包括夹具块和研磨板。 夹具块包括保持要研磨的杆的第一夹具和保持用于负载共享的构件的第二夹具。 研磨板相对于第一夹具和第二夹具可移动，并且能够与由第一夹具保持的杆的搭接表面和用于研磨的第二夹具保持的用于负载共享的构件接触。
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8.发明申请Exposure mask, method of forming resist pattern and method of forming thin film pattern 失效曝光掩模，形成抗蚀剂图案的方法和形成薄膜图案的方法公开(公告)号：US20070196745A1
公开(公告)日：2007-08-23
申请号：US11705119
申请日：2007-02-12
申请人： Akifumi Kamijima , Hiroki Matsukuma
发明人： Akifumi Kamijima , Hiroki Matsukuma
摘要： An exposure mask capable of improving resolution is provided. An exposure mask includes one slit-shaped main transmission region and three pairs of slit-shaped auxiliary transmission regions arranged in order in a direction perpendicular to the longitudinal direction of the main transmission region, each pair of auxiliary transmission regions facing each other with the main transmission region in between. Compared to the case where two or less pairs of auxiliary transmission regions are included, light intensity contrast becomes higher in an end portion in a slit width direction of the main transmission region by exposing and developing a resist film through the use of the exposure mask, so the exposed width of the resist film is narrowed.
摘要翻译： 提供了能够提高分辨率的曝光掩模。 曝光掩模包括一个狭缝状的主透射区域和在与主透射区域的纵向方向垂直的方向上依次布置的三对狭缝状的辅助传输区域，每对辅助传输区域彼此面对主体 传输区域之间。 与包含两个或更少对的辅助透射区域的情况相比，通过使用曝光掩模曝光和显影抗蚀剂膜，在主透射区域的狭缝宽度方向的端部中的光强度对比度变高， 因此抗蚀膜的曝光宽度变窄。
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9.发明授权公开(公告)号：US07158340B2
公开(公告)日：2007-01-02
申请号：US11111943
申请日：2005-04-22
IPC分类号： G11B5/596
CPC分类号： G11B5/855 , B82Y10/00 , G11B5/59655 , G11B5/743 , G11B5/82
摘要： The burst pattern shape in a discrete medium is set to a shape (truncated quadrangular pyramid shape) having substantially trapezoidal shapes in a track width direction and in a track circumferential direction, respectively, and a predetermined relationship is satisfied among W1, W2, Tp, and Wr where W1 represents an upper side corresponding to the surface of a convex magnetic recording layer and W2 a lower side corresponding to the lower surface of the convex magnetic recording layer in the trapezoidal shape in the track width direction, Tp represents a data track pitch of a data information recording portion, and Wr represents a read width of a magnetic head. Therefore, the burst pattern shape makes it possible to largely reduce a production load in processing and still to obtain an accurate position error signal.
摘要翻译： 将离散介质中的突发图案形状分别设定为在轨道宽度方向和轨道圆周方向上具有大致梯形形状的形状（截头四角锥形状），并且在W 1，W 2， Tp和Wr，其中W 1表示对应于凸形磁记录层的表面的上侧，W 2表示与轨道宽度方向上的梯形形状的凸形磁记录层的下表面对应的下侧，Tp表示 数据信息记录部分的数据磁道间距，Wr表示磁头的读宽度。 因此，突发图案形状使得可以大大降低处理中的生产负荷，并且仍然获得精确的位置误差信号。
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10.发明申请公开(公告)号：US20060132972A1
公开(公告)日：2006-06-22
申请号：US11300277
申请日：2005-12-15
申请人： Katsumichi Tagami , Tatsuya Harada , Hiroki Matsukuma , Tetsuya Roppongi , Susumu Aoki , Kazumasa Fukuda , Naoto Matono
发明人： Katsumichi Tagami , Tatsuya Harada , Hiroki Matsukuma , Tetsuya Roppongi , Susumu Aoki , Kazumasa Fukuda , Naoto Matono
IPC分类号： G11B5/147
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/1872
摘要： A thin-film magnetic head with which an error rate is decreased due to a reduction of a jitter without significant decrease in write field, is provided. The head comprises at least one inductive write head element comprising: a main magnetic pole layer having an inner saturation magnetic flux density varying from both side end surfaces in a track-width direction and a leading end surface, toward a center portion in the track-width direction of a trailing end surface; an auxiliary magnetic pole layer; and at least one coil layer, a curvature width WC of a contour line of a write field adjacent to a trailing edge on an ABS side of the main magnetic pole layer satisfying the following expression: −0.15*WT=WC
摘要翻译： 提供了一种薄膜磁头，其由于抖动的减小而不会在写入场中显着降低而误差率降低。 头包括至少一个感应写头元件，包括：主磁极层，具有从轨道宽度方向和前端表面的两个侧端面朝着轨道宽度方向的中心部分变化的内部饱和磁通密度， 后端面的宽度方向; 辅助磁极层; 以及至少一个线圈层，与主磁极层的ABS侧的后缘相邻的写入场的轮廓线的曲率宽度W C C满足以下表达式：-0.15 * 其中W T是轨道宽度，W C和W的单位是W 是纳米。
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