公开(公告)号：US20060221501A1

公开(公告)日：2006-10-05

申请号：US11388653

申请日：2006-03-23

申请人： Toshihiko Sato ,  Ooki Yamaguchi ,  Naruaki Oki ,  Masayuki Obana ,  Masayoshi Nakagawa

发明人： Toshihiko Sato ,  Ooki Yamaguchi ,  Naruaki Oki ,  Masayuki Obana ,  Masayoshi Nakagawa

IPC分类号： G11B5/60

CPC分类号： H05K3/244 ,  G11B5/4853 ,  H01L2224/742 ,  H05K1/09 ,  H05K3/3494 ,  H05K3/363 ,  H05K3/366 ,  H05K2203/041 ,  H05K2203/107

摘要： A slider includes electrode pads each of which is bonded to an electrode pad of a flexible printed circuit board through a solder ball. Surface cleaning is performed on the electrode pad of the slider in a vacuum atmosphere, and an Au surface protective film is formed on a new film surface of the same electrode pad. The entire surface of the same electrode pad is covered with the protective film. When the electrode pads of the slider and the flexible printed circuit board are bonded to each other by soldering, a solder ball is melted between the electrode pads, so that a solder fillet is formed in contact with the top surface of the electrode pad of the slider, side surfaces of the same electrode pad close to the flexible printed circuit board, and the top surface of the electrode pad of the flexible printed circuit board.

摘要翻译： 滑块包括电极焊盘，每个电极焊盘通过焊球与柔性印刷电路板的电极焊盘接合。 在真空气氛中在滑块的电极焊盘上进行表面清洁，并且在同一电极焊盘的新的膜表面上形成Au表面保护膜。 同一电极垫的整个表面被保护膜覆盖。 当滑块和柔性印刷电路板的电极焊盘通过焊接彼此接合时，焊球在电极焊盘之间熔化，从而形成与焊料的电极焊盘的顶表面接触的焊接圆角 滑动件，靠近柔性印刷电路板的相同电极焊盘的侧表面和柔性印刷电路板的电极焊盘的顶表面。

公开(公告)号：US06898056B2

公开(公告)日：2005-05-24

申请号：US10288152

申请日：2002-11-05

申请人： Kiyoshi Sato ,  Toshinori Watanabe ,  Naruaki Oki

发明人： Kiyoshi Sato ,  Toshinori Watanabe ,  Naruaki Oki

IPC分类号： G11B5/31 ,  G11B5/66

CPC分类号： G11B5/3116 ,  G11B5/313 ,  Y10T428/1171

摘要： By forming a step in a lower core layer, the distance between the upper surface of a Gd-defining layer and the lower core layer is changed stepwise. Consequently, the distance between an upper magnetic pole layer formed on the upper surface of the Gd-defining layer and the lower core layer is small in the front region of the lower core layer, and thus a leakage magnetic field from the upper magnetic pole layer is absorbed by the lower core layer and is not applied to a recording medium.

摘要翻译： 通过在下芯层中形成台阶，Gd界定层的上表面与下芯层之间的距离逐步变化。 因此，形成在Gd定义层的上表面上的上磁极层与下芯层之间的距离在下芯层的前部区域较小，因此来自上磁极层的漏磁场 被下芯层层吸收并且不被施加到记录介质上。

公开(公告)号：US07106555B2

公开(公告)日：2006-09-12

申请号：US10701343

申请日：2003-11-04

申请人： Katsuya Kikuiri ,  Naruaki Oki

发明人： Katsuya Kikuiri ,  Naruaki Oki

IPC分类号： G11B5/127

CPC分类号： G11B5/3967 ,  G11B5/187

摘要： A magnetic head in which two sides, which are defined as viewed in a core width direction, of first, second, and third end surfaces of a magnetic recording head extend along a longitudinal direction of recording tracks, so that it is possible to reduce spreading of leakage magnetic field extending from the two sides of the magnetic recording head in the core width direction between an upper core layer and a lower core layer protrusion through a gap layer. If the leakage magnetic field extending from both sides of the gap layer is reduced, it is possible to prevent the formation of an erased area beyond a multiple recording area. It is possible to maintain the S/N ratio of a reproduction signal at a proper value when reading out magnetic information from a magnetic tape.

摘要翻译： 磁记录头的第一，第二和第三端表面沿磁芯宽度方向限定的两侧的磁头沿着记录磁道的纵向方向延伸，从而可以减少扩展 的漏磁场通过间隙层从磁芯记录头的两侧在芯宽度方向上延伸到上芯层和下芯层突起之间。 如果从间隙层的两侧延伸的泄漏磁场减小，则可以防止在多个记录区域之外形成擦除区域。 当从磁带读出磁信息时，可以将再现信号的S / N比维持在适当的值。

公开(公告)号：US06999275B2

公开(公告)日：2006-02-14

申请号：US09949251

申请日：2001-09-07

申请人： Sumihito Morita ,  Naruaki Oki ,  Toshinori Watanabe ,  Hiroko Shinozaki

发明人： Sumihito Morita ,  Naruaki Oki ,  Toshinori Watanabe ,  Hiroko Shinozaki

IPC分类号： G11B5/127

CPC分类号： B82Y10/00 ,  G11B5/09 ,  G11B5/3116 ,  G11B5/313 ,  G11B5/3967 ,  Y10T29/49032 ,  Y10T29/49041 ,  Y10T29/49043 ,  Y10T29/49048 ,  Y10T29/49052 ,  Y10T29/4906 ,  Y10T29/49064

摘要： A thin film magnetic head wherein a partial insulating layer is formed on a bottom pole layer with a gap layer provided therebetween, the gap depth Gd being regulated by the distance from a surface facing a recording medium to the partial insulating layer. A magnetic flux partially leaks from a tip region of an upper core layer to the bottom pole layer through the partial insulating layer to effectively suppress magnetic saturation of the tip region, thereby improving the NLTS characteristic and PW50 characteristic, and suppressing the occurrence of side fringing.

公开(公告)号：US06954333B2

公开(公告)日：2005-10-11

申请号：US10688762

申请日：2003-10-17

申请人： Sumihito Morita ,  Naruaki Oki ,  Toshinori Watanabe ,  Hiroko Shinozaki

发明人： Sumihito Morita ,  Naruaki Oki ,  Toshinori Watanabe ,  Hiroko Shinozaki

IPC分类号： G11B5/09 ,  G11B5/31 ,  G11B5/39 ,  G11B5/127

CPC分类号： B82Y10/00 ,  G11B5/09 ,  G11B5/3116 ,  G11B5/313 ,  G11B5/3967 ,  Y10T29/49032 ,  Y10T29/49041 ,  Y10T29/49043 ,  Y10T29/49048 ,  Y10T29/49052 ,  Y10T29/4906 ,  Y10T29/49064

摘要： A thin film magnetic head wherein a partial insulating layer is formed on a bottom pole layer with a gap layer provided therebetween, the gap depth Gd being regulated by the distance from a surface facing a recording medium to the partial insulating layer. A magnetic flux partially leaks from a tip region of an upper core layer to the bottom pole layer through the partial insulating layer to effectively suppress magnetic saturation of the tip region, thereby improving the NLTS characteristic and PW50 characteristic, and suppressing the occurrence of side fringing.

摘要翻译： 一种薄膜磁头，其中在底极层上形成有部分绝缘层，其间设有间隙层，间隙深度Gd被从面向记录介质的表面到部分绝缘层的距离调节。 磁通量通过部分绝缘层从上芯层的顶端部分泄漏到底极层，以有效地抑制尖端区域的磁饱和，从而提高NLTS特性和PW 50特性，并抑制侧面的发生 边缘

公开(公告)号：US06801393B2

公开(公告)日：2004-10-05

申请号：US10071959

申请日：2002-02-05

申请人： Naruaki Oki ,  Sumihito Morita

发明人： Naruaki Oki ,  Sumihito Morita

IPC分类号： G11B5147

CPC分类号： G11B5/313 ,  G11B5/3143

摘要： A metal film is formed on the upper surface of a gap-depth defining layer. This makes it possible to form an upper magnetic layer with a predetermined thickness over a gap layer and the metal film by plating, and to produce a thin-film magnetic head which can reduce the magnetic saturation. The positions of a rear edge of the upper magnetic layer or the like, which contributes to the characteristics, such as overwriting characteristics, can be easily and freely changed in order to optimize the characteristics, and the controllability of the track width can be enhanced.

摘要翻译： 在间隙深度限定层的上表面上形成金属膜。 这使得可以通过电镀在间隙层和金属膜上形成具有预定厚度的上磁性层，并且制造可以降低磁饱和度的薄膜磁头。 为了优化特性，可以容易且自由地改变有助于诸如重写特性等特性的上磁性层等的后边缘的位置，并且可以提高轨道宽度的可控性。

公开(公告)号：US06400527B1

公开(公告)日：2002-06-04

申请号：US09437888

申请日：1999-11-09

申请人： Hideki Gochou ,  Kiyoshi Kobayashi ,  Naruaki Oki

发明人： Hideki Gochou ,  Kiyoshi Kobayashi ,  Naruaki Oki

IPC分类号： G11B531

CPC分类号： G11B5/3163 ,  G11B5/3116 ,  G11B5/313 ,  G11B5/3166 ,  G11B5/3967

摘要： To provide a thin film magnetic head having an upper core layer whose dimensions are controlled with high precision, which can yield high density recording on a magnetic recording medium, and a production process of the same, an upper core layer is formed on a first, second and third insulation layers and a gap layer, and has a narrow tip region, a connecting portion and a body portion, in which the tip region is connected via the gap layer to a lower core layer on a head surface facing a magnetic recording medium, the connecting portion is connected to the tip region in a nearly identical width, and is formed on a lower region of a first sloping region and an inclined plane K, and the body portion extends wider from the connecting portion and covers part of a coil layer. In a thin film magnetic head having a dual coil layer structure, a third insulation layer having a third apex and a third sloping region is formed to cover a second coil layer, and the third apex is located on a second plane region, and the top of a second insulation layer and the third sloping region establish a first pocket region P1.

摘要翻译： 为了提供具有高精度地控制尺寸的上芯层的薄膜磁头，其可以在磁记录介质上产生高密度记录及其制造方法，上芯层形成在第一， 第二和第三绝缘层和间隙层，并且具有窄的尖端区域，连接部分和主体部分，其中尖端区域经由间隙层连接到面对磁记录介质的头表面上的下芯层 连接部分以几乎相同的宽度连接到尖端区域，并且形成在第一倾斜区域和倾斜平面K的下部区域上，并且主体部分从连接部分延伸得更宽并覆盖线圈的一部分 层。 在具有双线圈层结构的薄膜磁头中，形成具有第三顶点和第三倾斜区域的第三绝缘层以覆盖第二线圈层，并且第三顶点位于第二平面区域上，并且顶部 并且所述第三倾斜区域建立第一袋区域P1。

公开(公告)号：US06731457B2

公开(公告)日：2004-05-04

申请号：US09754518

申请日：2001-01-04

申请人： Naruaki Oki ,  Takashi Arai ,  Sumihito Morita

发明人： Naruaki Oki ,  Takashi Arai ,  Sumihito Morita

IPC分类号： G11B5147

CPC分类号： G11B5/3116 ,  G11B5/313 ,  G11B5/3163

摘要： In a thin-film magnetic head, an lower magnetic pole layer is formed on a lower core layer to form a step between the lower core layer and the lower magnetic pole layer. A coil layer and a coil-insulating layer are formed on the lower core layer, and an upper core layer is formed over the lower magnetic pole layer and the coil-insulating layer. This configuration decreases the height of the coil-insulating layer from the lower magnetic pole layer compared to the height in a conventional thin-film magnetic head. The front end of the upper core layer can be precisely formed so as to have a track width Tw. This thin-film magnetic head is suitable for narrower track widths.

摘要翻译： 在薄膜磁头中，在下芯层上形成下磁极层，以在下芯层和下磁极层之间形成台阶。 在下芯层上形成线圈层和线圈绝缘层，在下磁极层和线圈绝缘层上形成上芯层。 与以往的薄膜磁头的高度相比，这种构造使线圈绝缘层与下磁极层的高度相比降低。 上芯层的前端可精确地形成为具有轨道宽度Tw。 该薄膜磁头适用于较窄的轨道宽度。

公开(公告)号：US06650502B2

公开(公告)日：2003-11-18

申请号：US09769208

申请日：2001-01-24

申请人： Hisayuki Yazawa ,  Naruaki Oki

发明人： Hisayuki Yazawa ,  Naruaki Oki

IPC分类号： G11B5147

CPC分类号： G11B5/313 ,  G11B5/3116 ,  G11B5/3163 ,  Y10T29/49043

摘要： A lower magnetic pole layer is formed on a lower core layer, and a coil layer and a coil insulating layer are formed in a space corresponding to a level difference between the lower magnetic pole layer and the lower core layer. The coil layer and the coil insulating layer are leveled flush with a reference plane, whereby a gap layer can be formed flat on the lower magnetic pole layer, the coil layer and the coil insulating layer. Thus, since the upper core layer can be directly formed on the gap layer and the gap layer can be formed on the flat surfaces, it is possible to form the upper core layer into a predetermined shape with high accuracy and to manufacture a thin-film magnetic head which is adaptable for a decrease of the track width in future.

摘要翻译： 在下芯层上形成下磁极层，在对应于下磁极层和下芯层之间的电平差的空间中形成线圈层和线圈绝缘层。 线圈层和线圈绝缘层与参考平面齐平，从而可以在下磁极层，线圈层和线圈绝缘层上平坦地形成间隙层。 因此，由于上芯层可以直接形成在间隙层上，并且可以在平坦表面上形成间隙层，所以可以以高精度将上芯层形成为预定形状，并制造薄膜 磁头适用于将来轨道宽度的减小。

公开(公告)号：US07190553B2

公开(公告)日：2007-03-13

申请号：US09822576

申请日：2001-03-30

申请人： Sumihito Morita ,  Naruaki Oki ,  Hisayuki Yazawa ,  Minoru Yamada

发明人： Sumihito Morita ,  Naruaki Oki ,  Hisayuki Yazawa ,  Minoru Yamada

IPC分类号： G11B5/147

CPC分类号： G11B5/3146 ,  G11B5/3116 ,  G11B5/313

摘要： In a thin-film magnetic head, a lower magnetic pole layer and a planarizing magnetic layer in continuity with the lower magnetic layer are arranged. Since a coil formation surface is positioned lower than the top surface of the lower magnetic pole layer and the planarizing magnetic layer, the front end of an upper magnetic core layer is formed to be a predetermined track width with a high accuracy. A thin-film magnetic head having good information writing characteristics and a method for manufacturing the thin-film magnetic head are thus provided.

摘要翻译： 在薄膜磁头中，布置有与下磁性层连续的下磁极层和平坦化磁性层。 由于线圈形成表面位于比下磁极层和平坦化磁性层的顶表面低的位置，因此上磁芯层的前端以高精度形成为预定轨道宽度。 因此提供了具有良好信息写入特性的薄膜磁头和制造薄膜磁头的方法。