公开(公告)号：US06704162B2

公开(公告)日：2004-03-09

申请号：US10215761

申请日：2002-08-09

申请人： Kiyoshi Sato ,  Hideki Gochou ,  Kiyoshi Kobayashi ,  Hisayuki Yazawa ,  Akira Koyama ,  Minoru Yamada

发明人： Kiyoshi Sato ,  Hideki Gochou ,  Kiyoshi Kobayashi ,  Hisayuki Yazawa ,  Akira Koyama ,  Minoru Yamada

IPC分类号： G11B5147

CPC分类号： G11B5/3116 ,  G11B5/312 ,  G11B5/313 ,  Y10T29/49048

摘要： A track width regulating section having a track width, which is smaller than the resolution obtained by the wavelength of the light used for exposure and development of a resist, is formed between a lower core layer and an upper core layer. Since the width of the upper core layer is larger than the track width, magnetic saturation can be effectively reduced. Inclined faces are formed on the upper surface of the lower core layer so as to be inclined in directions away from the track width regulating section, thereby adequately preventing write fringing.

摘要翻译： 在下芯层和上核层之间形成轨道宽度调节部分，其轨道宽度小于通过用于曝光和显影抗蚀剂的光的波长获得的分辨率。 由于上芯层的宽度大于轨道宽度，所以可以有效地降低磁饱和。 倾斜面形成在下芯层的上表面上，以便在远离轨道宽度调节部分的方向上倾斜，从而充分防止了写入边缘。

公开(公告)号：US06636381B1

公开(公告)日：2003-10-21

申请号：US09643919

申请日：2000-08-23

申请人： Kiyoshi Sato ,  Hideki Gochou ,  Kiyoshi Kobayashi ,  Hisayuki Yazawa ,  Akira Koyama ,  Minoru Yamada

发明人： Kiyoshi Sato ,  Hideki Gochou ,  Kiyoshi Kobayashi ,  Hisayuki Yazawa ,  Akira Koyama ,  Minoru Yamada

IPC分类号： G11B5127

CPC分类号： G11B5/3116 ,  G11B5/312 ,  G11B5/313 ,  Y10T29/49048

摘要： A track width regulating section having a track width, which is smaller than the resolution obtained by the wavelength of the light used for exposure and development of a resist, is formed between a lower core layer and an upper core layer. Since the width of the upper core layer is larger than the track width, magnetic saturation can be effectively reduced. Inclined faces are formed on the upper surface of the lower core layer so as to be inclined in directions away from the track width regulating section, thereby adequately preventing write fringing.

摘要翻译： 在下芯层和上核层之间形成轨道宽度调节部分，其轨道宽度小于通过用于曝光和显影抗蚀剂的光的波长获得的分辨率。 由于上芯层的宽度大于轨道宽度，所以可以有效地降低磁饱和。 倾斜面形成在下芯层的上表面上，以便在远离轨道宽度调节部分的方向上倾斜，从而充分防止了写入边缘。

公开(公告)号：US07472470B2

公开(公告)日：2009-01-06

申请号：US11624332

申请日：2007-01-18

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 pore 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要的磁性孔层，并且在主磁极层的下方形成具有大的膜厚的磁轭层，而与主磁极无关。 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，并且可以形成具有高图案精度的主磁极层，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：US06697221B2

公开(公告)日：2004-02-24

申请号：US10024965

申请日：2001-12-18

申请人： Kiyoshi Sato ,  Toshinori Watanabe ,  Hideki Gochou ,  Hisayuki Yazawa ,  Kiyoshi Kobayashi ,  Akira Koyama

发明人： Kiyoshi Sato ,  Toshinori Watanabe ,  Hideki Gochou ,  Hisayuki Yazawa ,  Kiyoshi Kobayashi ,  Akira Koyama

IPC分类号： G11B539

CPC分类号： G11B5/1278 ,  G11B5/3116 ,  G11B5/3163 ,  Y10S977/934

摘要： A perpendicular magnetic recording head includes an auxiliary magnetic pole layer exposed at a surface facing a recording medium, a main magnetic pole layer deposited on the auxiliary magnetic pole layer with an insulating layer therebetween, a coil layer for applying a recording magnetic field to the auxiliary magnetic pole layer and the main magnetic pole layer, and a connecting layer placed on the auxiliary magnetic pole layer toward the back from the surface facing the recording medium. At the surface facing the recording medium, the upper base of the main magnetic pole layer is wider than the lower base so that the width in the track width direction of the main magnetic pole layer gradually increases with distance from the auxiliary magnetic pole layer. A method for making such a perpendicular magnetic recording head is also disclosed.

摘要翻译： 垂直磁记录头包括在面向记录介质的表面上暴露的辅助磁极层，沉积在其上具有绝缘层的辅助磁极层上的主磁极层，用于向辅助磁极层施加记录磁场的线圈层 磁极层和主磁极层，以及从面向记录介质的表面朝向辅助磁极层的连接层。 在面对记录介质的表面上，主磁极层的上基底比下基底宽，使得主磁极层的磁道宽度方向上的宽度随着与辅助磁极层的距离而逐渐增加。 还公开了一种用于制造这种垂直磁记录头的方法。

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：US06687084B2

公开(公告)日：2004-02-03

申请号：US10025131

申请日：2001-12-18

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： G11B5127

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：US06882502B2

公开(公告)日：2005-04-19

申请号：US10017748

申请日：2001-12-14

申请人： Kiyoshi Sato ,  Hideki Gochou ,  Hisayuki Yazawa ,  Kiyoshi Kobayashi ,  Akira Koyama

发明人： Kiyoshi Sato ,  Hideki Gochou ,  Hisayuki Yazawa ,  Kiyoshi Kobayashi ,  Akira Koyama

IPC分类号： G11B5/31 ,  G11B5/39 ,  G11B5/147

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/3116 ,  G11B5/313 ,  G11B5/3133 ,  G11B5/3163 ,  G11B5/3967 ,  G11B2005/3996

摘要： A thin-film magnetic head includes a lower core layer, a gap layer formed on the lower core layer with a lower pole layer therebetween, an upper pole layer formed on the gap layer, an upper core layer formed on the upper pole layer, and a Gd-defining layer for defining the depth in the height direction of the joint surface between the gap layer and the upper pole layer. The width in the track width direction of the gap layer is smaller than or equal to the width in the track width direction of the upper pole layer when viewed from the surface facing the recording medium. By employing such a thin-film magnetic head, the width in the track width direction of the gap layer can be decreased, and thus track narrowing is achieved.

摘要翻译： 薄膜磁头包括下芯层，形成在下芯层上的间隙层，其间具有下极层，形成在间隙层上的上极层，形​​成在上极层上的上芯层，以及 用于限定间隙层和上极层之间的接合表面的高度方向上的深度的Gd限定层。 当从面向记录介质的表面观察时，间隙层的轨道宽度方向上的宽度小于或等于上极层的轨道宽度方向上的宽度。 通过采用这种薄膜磁头，可以减小间隙层的磁道宽度方向上的宽度，从而实现磁道变窄。

公开(公告)号：US20070115594A1

公开(公告)日：2007-05-24

申请号：US11624332

申请日：2007-01-18

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： G11B5/33

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 on 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，在主磁极层上形成膜厚大的磁轭层。 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体的前端 极层。

公开(公告)号：US20060002025A1

公开(公告)日：2006-01-05

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： G11B5/147

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 on 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.

公开(公告)号：US06958886B2

公开(公告)日：2005-10-25

申请号：US10435414

申请日：2003-05-09

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： G11B5/31 ,  G11B5/127 ,  G11B5/187

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 on 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，在主磁极层上形成膜厚大的磁轭层。 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。