公开(公告)号：US20080218908A1

公开(公告)日：2008-09-11

申请号：US12037369

申请日：2008-02-26

申请人： Hisayuki Yazawa ,  Kiyoshi Kobayashi

发明人： Hisayuki Yazawa ,  Kiyoshi Kobayashi

IPC分类号： G11B5/33 ,  B05D5/12

CPC分类号： G11B5/1278 ,  G11B5/3116 ,  G11B5/3163

摘要： A perpendicular magnetic recording head includes a main magnetic pole layer; and a return yoke layer laminated on the main magnetic pole layer with a magnetic gap layer formed of a nonmagnetic material disposed on an opposing surface opposite a recording medium. The return yoke layer includes a first throat part opposing the main magnetic pole layer at a side close to the recording medium-opposing surface with a first gap spacing corresponding to a film thickness of the magnetic gap layer; and a second throat part extending to a deeper side than the first throat part in a height direction and opposing the main magnetic pole layer with a second gap spacing greater than the first gap spacing. A throat height determining layer is provided on the main magnetic pole layer or the magnetic gap layer, the throat height determining layer defining a dimension of the first throat part of the return yoke layer in the height direction and formed of an inorganic nonmagnetic material.

摘要翻译： 垂直磁记录头包括主磁极层; 以及层叠在主磁极层上的返回轭层，其具有由设置在与记录介质相对的相对表面上的非磁性材料形成的磁隙层。 返回轭层包括在接近记录介质相对表面的一侧与主磁极层相对的第一喉部，第一间隙间隔对应于磁隙层的膜厚度; 以及第二喉部，其在高度方向上延伸到比第一喉部更深的一侧，并且具有大于第一间隙间隔的第二间隙间隔与主磁极层相对。 喉部高度确定层设置在主磁极层或磁隙层上，喉部高度确定层限定返回磁轭层的高度方向的第一喉部的尺寸，并由无机非磁性材料形成。

公开(公告)号：US20080174911A1

公开(公告)日：2008-07-24

申请号：US11943938

申请日：2007-11-21

申请人： Yusuke Toma ,  Kiyoshi Kobayashi ,  Toru Takahashi ,  Hiroshi Kameda

发明人： Yusuke Toma ,  Kiyoshi Kobayashi ,  Toru Takahashi ,  Hiroshi Kameda

IPC分类号： G11B5/127 ,  G11B5/31

CPC分类号： G11B5/1278 ,  G11B5/3116

摘要： A perpendicular magnetic recording head is provided capable of suppressing the magnetic field attributable to the edge write phenomenon and improving resistance to an external magnetic field. The perpendicular magnetic recording head includes a magnetic layer that has a main magnetic pole on a surface facing a recording medium; a return yoke layer that is disposed on the magnetic layer with a nonmagnetic layer disposed therebetween and has a large width in the direction of the main magnetic pole; and a coil layer for applying a recording magnetic field to the magnetic layer. The return yoke layer is provided with such a shape that as seen in the plan view, the return yoke layer is exposed from the medium facing surface with a width not greater than the width in the track width direction of a protrusion region of the return yoke layer that covers the coil layer and the width of the return yoke layer gradually increases as it goes toward the starting point of the height direction.

摘要翻译： 提供了能够抑制归因于边缘写入现象的磁场并提高对外部磁场的抵抗力的垂直磁记录头。 垂直磁记录头包括在面向记录介质的表面上具有主磁极的磁性层; 返回磁轭层，其设置在磁性层上，其间设置有非磁性层，并且在主磁极的方向上具有大的宽度; 以及用于向磁性层施加记录磁场的线圈层。 返回磁轭层具有如下的形状：从平面图看，返回磁轭层从介质面向表面露出，宽度不大于返回磁轭的突出区域的磁道宽度方向上的宽度 覆盖线圈层的层和返回轭层的宽度随着朝向高度方向的起点逐渐增加。

公开(公告)号：US07392577B2

公开(公告)日：2008-07-01

申请号：US10937646

申请日：2004-09-09

申请人： Hisayuki Yazawa ,  Kiyoshi Kobayashi

发明人： Hisayuki Yazawa ,  Kiyoshi Kobayashi

IPC分类号： G11B5/187

CPC分类号： G11B5/1272 ,  Y10T29/49041 ,  Y10T29/49043 ,  Y10T29/49046 ,  Y10T29/49052

摘要： A method of manufacturing a perpendicular magnetic head is disclosed, including perpendicular magnetic recording head includes forming a primary magnetic pole having a flat top surface, where a shield layer over the primary magnetic pole and at the sides of the primary magnetic pole is formed in a single piece. The distance in the direction perpendicular to the thickness direction between the side surfaces of the primary magnetic pole and the side shield layer is longer than the distance in the thickness direction between the top surface of the primary magnetic pole and the shield layer.

摘要翻译： 公开了一种制造垂直磁头的方法，包括垂直磁记录头，包括形成具有平坦顶表面的主磁极，其中主磁极上的屏蔽层和主磁极的侧面形成在 单件 在主磁极和侧屏蔽层的侧表面之间的垂直于厚度方向的方向上的距离比主磁极的顶表面和屏蔽层之间的厚度方向上的距离长。

公开(公告)号：US07305753B2

公开(公告)日：2007-12-11

申请号：US11051094

申请日：2005-02-04

申请人： Kiyoshi Kobayashi

发明人： Kiyoshi Kobayashi

IPC分类号： G11B5/127 ,  H04R31/00

CPC分类号： G11B5/3116 ,  G11B5/1278 ,  Y10T29/49043 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A first magnetic layer is formed on a first magnetic layer formation surface, and then a first material layer-forming layer is deposited on the first magnetic layer formation surface and on the sides and the top of the first magnetic layer and is etched to form first material layers so that the width dimension of each first material layer in the track width direction gradually decreases in the upward direction. Then, a second material layer is formed over the first material layer formation surface, the first material layers, and the first magnetic layer. Then, the first material layers, the second material layer, and the first magnetic layer are polished to expose the upper surface of the first magnetic layer and form the upper surfaces of the second material layer and the first magnetic layer as the same planarized surface.

摘要翻译： 在第一磁性层形成表面上形成第一磁性层，然后在第一磁性层形成表面和第一磁性层的侧面和顶部上沉积第一材料层形成层，并且被蚀刻以形成第一磁性层 使得每个第一材料层在轨道宽度方向上的宽度尺寸在向上方向上逐渐减小。 然后，在第一材料层形成表面，第一材料层和第一磁性层上形成第二材料层。 然后，对第一材料层，第二材料层和第一磁性层进行抛光以暴露第一磁性层的上表面，并将第二材料层和第一磁性层的上表面形成为相同的平坦化表面。

公开(公告)号：US07249407B2

公开(公告)日：2007-07-31

申请号：US11345112

申请日：2006-02-01

申请人： Kiyoshi Kobayashi

发明人： Kiyoshi Kobayashi

IPC分类号： G11B5/127 ,  H04R31/00

CPC分类号： G11B5/1278 ,  G11B5/3116 ,  G11B5/3163 ,  Y10T29/49027 ,  Y10T29/49037 ,  Y10T29/49041 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052 ,  Y10T29/49073

摘要： A method of manufacturing a magnetic head is provided which can improve controlling a thickness of a gap layer. A coil base layer having at least a surface layer formed of one or two or more alloys selected from Au, Ru, and Rh is formed on a contact layer. Thereby, since a surface of the coil base layer is not oxidized due to air exposure, the contact layer is not oxidized. As such, the coil base layer protects the contact layer, so that it is not necessary to perform an etching process for removing an oxide layer, as in the related art. Therefore, it is possible to further improve controlling a thickness of a gap layer without cutting the gap layer by the etching process, as compared with the related art.

摘要翻译： 提供一种制造磁头的方法，其可以改善控制间隙层的厚度。 在接触层上形成至少具有由一种或两种以上选自Au，Ru和Rh的合金形成的表面层的线圈基层。 因此，由于线圈基层的表面由于空气暴露而不被氧化，所以接触层不被氧化。 因此，如现有技术那样，线圈基层保护接触层，从而不需要执行去除氧化物层的蚀刻工艺。 因此，与现有技术相比，可以通过蚀刻工艺进一步改进控制间隙层的厚度而不切割间隙层。

公开(公告)号：US20070151095A1

公开(公告)日：2007-07-05

申请号：US11617443

申请日：2006-12-28

申请人： Kiyoshi Kobayashi

发明人： Kiyoshi Kobayashi

IPC分类号： G11B5/127 ,  H04R31/00

CPC分类号： G11B5/1278 ,  G11B5/3133 ,  G11B5/3163 ,  Y10T29/49041 ,  Y10T29/49043 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A main pole forming method is provided. The main pole forming method includes etching an exposed side face of a main pole layer, and the plated foundation film, thereby defining a recording track width. The method also includes etching the nonmagnetic insulating layer, and reattaching a material repelled from the nonmagnetic insulating layer to the side face of the main pole layer and a side face of the plated foundation film.

摘要翻译： 提供了主极形成方法。 主极形成方法包括蚀刻主极层的暴露侧面和镀覆基底膜，由此限定记录轨道宽度。 该方法还包括蚀刻非磁性绝缘层，并将从非磁性绝缘层排斥的材料重新附着到主极层的侧面和镀覆基底膜的侧面。

公开(公告)号：US20070121247A1

公开(公告)日：2007-05-31

申请号：US11564754

申请日：2006-11-29

申请人： Kiyoshi Kobayashi

发明人： Kiyoshi Kobayashi

IPC分类号： G11B5/127 ,  G11B5/147

CPC分类号： G11B5/3163 ,  G11B5/17 ,  G11B5/3136

摘要： A thin film magnetic head is provided. The thin film magnetic head includes an upper coil wire group and a lower coil wire group. Two columns of coil contact groups that are formed on both end portions of individual coil wires of the upper coil wire group and the lower coil wire group and connect both end portions of the coil wires. An insulating resist layer buries a space between coil contacts of the coil contact groups. An inorganic insulating layer buries a space between the two columns of coil contact groups. The upper coil wire group, the lower coil wire group, and the two columns of coil contact groups form a thin film coil that applies a magnetic recording field to the magnetic material layer. The insulating resist layer and the inorganic insulating layer are located at the same lamination height as the two columns of coil contact groups.

摘要翻译： 提供薄膜磁头。 薄膜磁头包括上线圈线组和下线圈线组。 形成在上线圈线组和下线圈线组的各个线圈线的两端部上并连接线圈线的两端的两列线圈接触组。 绝缘抗蚀剂层埋在线圈接触组的线圈接触之间的空间。 无机绝缘层埋在两列线圈接触组之间的空间。 上线圈线组，下线圈线组和两列线圈接触组形成向磁性体层施加磁记录场的薄膜线圈。 绝缘抗蚀剂层和无机绝缘层位于与两列线圈接触组相同的层叠高度处。

公开(公告)号：US07181829B2

公开(公告)日：2007-02-27

申请号：US11222441

申请日：2005-09-08

申请人： Toru Takahashi ,  Hisayuki Yazawa ,  Hideki Gochou ,  Kiyoshi Kobayashi ,  Minoru Yamada ,  Kiyoshi Sato ,  Toshinori Watanabe

发明人： Toru Takahashi ,  Hisayuki Yazawa ,  Hideki Gochou ,  Kiyoshi Kobayashi ,  Minoru Yamada ,  Kiyoshi Sato ,  Toshinori Watanabe

IPC分类号： G11B5/127 ,  H04R31/00

CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/3163 ,  Y10T29/49039 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A main magnetic pole layer is formed on an insulating layer flattened into a high-flatness surface, and a yoke layer having a large film thickness is formed under the main magnetic pole layer independently of the main magnetic pole. The main magnetic pole layer has a front end surface formed in a shape with a width size gradually increasing in a direction of track width as the front end surface departs farther away from an auxiliary magnetic pole layer. A perpendicular magnetic recording head can be provided which can suppress the occurrence of fringing in a recording pattern, and can form the main magnetic pole layer with high pattern accuracy, and can satisfactorily introduce a recording magnetic field to a fore end of the main magnetic pole layer.

摘要翻译： 在平坦化面平坦化的绝缘层上形成有主磁极层，独立于主磁极，在主磁极层的下方形成有膜厚较大的磁轭层。 主磁极层的前端表面形成为具有随着前端表面离开辅助磁极层而在轨道宽度方向上逐渐增加的宽度尺寸的形状。 可以提供一种垂直磁记录头，其可以抑制记录图案中的边缘的发生，并且可以以高图案精度形成主磁极层，并且可以令人满意地将记录磁场引入主磁极的前端 层。

公开(公告)号：US20060174471A1

公开(公告)日：2006-08-10

申请号：US11345112

申请日：2006-02-01

申请人： Kiyoshi Kobayashi

发明人： Kiyoshi Kobayashi

IPC分类号： G11B5/127

CPC分类号： G11B5/1278 ,  G11B5/3116 ,  G11B5/3163 ,  Y10T29/49027 ,  Y10T29/49037 ,  Y10T29/49041 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052 ,  Y10T29/49073

摘要： A method of manufacturing a magnetic head is provided which can improve controlling a thickness of a gap layer. A coil base layer having at least a surface layer formed of one or two or more alloys selected from Au, Ru, and Rh is formed on a contact layer. Thereby, since a surface of the coil base layer is not oxidized due to air exposure, the contact layer is not oxidized. As such, the coil base layer protects the contact layer, so that it is not necessary to perform an etching process for removing an oxide layer, as in the related art. Therefore, it is possible to further improve controlling a thickness of a gap layer without cutting the gap layer by the etching process, as compared with the related art.

摘要翻译： 提供一种制造磁头的方法，其可以改善控制间隙层的厚度。 在接触层上形成至少具有由一种或两种以上选自Au，Ru和Rh的合金形成的表面层的线圈基层。 因此，由于线圈基层的表面由于空气暴露而不被氧化，所以接触层不被氧化。 因此，如现有技术那样，线圈基层保护接触层，从而不需要执行去除氧化物层的蚀刻工艺。 因此，与现有技术相比，可以通过蚀刻工艺进一步改进控制间隙层的厚度而不切割间隙层。

公开(公告)号：US20060171073A1

公开(公告)日：2006-08-03

申请号：US11396029

申请日：2006-03-31

申请人： Kiyoshi Kobayashi

发明人： Kiyoshi Kobayashi

IPC分类号： G11B5/147

CPC分类号： G11B5/1278 ,  G11B5/012 ,  G11B5/1871 ,  G11B5/3116 ,  Y10T29/49041 ,  Y10T29/49046 ,  Y10T29/49052

摘要： A thin-film magnetic head for perpendicular magnetic recording includes a nonmagnetic conductive elevation layer disposed under a main magnetic pole layer. The nonmagnetic conductive elevation layer and the main magnetic pole layer forms a trapezoidal shape converging toward an auxiliary magnetic pole layer, viewed from a face opposing a recording medium. The thin-film magnetic head for perpendicular magnetic recording includes an auxiliary magnetic pole layer, the main magnetic pole layer, and a nonmagnetic insulating layer disposed therebetween at a surface facing the recording medium.

摘要翻译： 用于垂直磁记录的薄膜磁头包括设置在主磁极层下面的非磁性导电仰角层。 从与记录介质相对的面观察，非磁性导电仰角层和主磁极层形成从辅助磁极层会聚的梯形。 用于垂直磁记录的薄膜磁头包括辅助磁极层，主磁极层和设置在面对记录介质的表面之间的非磁性绝缘层。