公开(公告)号：US20140002921A1

公开(公告)日：2014-01-02

申请号：US13535858

申请日：2012-06-28

申请人： Masashi SANO ,  Hiromichi Umehara ,  Mutsumi Fujita ,  Isamu Toba ,  Tatsuhiro Nojima ,  Hitoshi Hatate ,  Hisayoshi Watanabe

发明人： Masashi SANO ,  Hiromichi Umehara ,  Mutsumi Fujita ,  Isamu Toba ,  Tatsuhiro Nojima ,  Hitoshi Hatate ,  Hisayoshi Watanabe

IPC分类号： G11B5/31

CPC分类号： G11B5/607

摘要： A thin film magnetic recording head having a multilayer structure in which plural thin films are laminated and being a perpendicular recording type that applies a magnetic field perpendicularly to a magnetic recording medium and performs recording, includes a main magnetic pole exposed on an air bearing surface facing the magnetic recording medium and guiding a magnetic flux toward the magnetic recording medium, a thin film positioned beneath the main magnetic pole from a perspective of a lamination direction and configuring a sensor or a heater configured to determine a distance from the magnetic recording medium of the thin film magnetic recording head, and a light-absorbing portion positioned between the main magnetic pole and the thin film.

摘要翻译： 一种薄膜磁记录头，其具有层叠多个薄膜的多层结构，并且是垂直记录方式，其垂直于磁记录介质施加磁场并进行记录，该磁记录头包括暴露在空气轴承表面 磁记录介质，并向磁记录介质引导磁通量，从层叠方向的角度定位在主磁极下方的薄膜，以及配置传感器或加热器，该传感器或加热器被配置为确定与磁记录介质的距离 薄膜磁记录头和位于主磁极和薄膜之间的光吸收部分。

公开(公告)号：US08373947B1

公开(公告)日：2013-02-12

申请号：US13248590

申请日：2011-09-29

申请人： Tatsuhiro Nojima ,  Masashi Sano ,  Yosuke Antoku ,  Mutsumi Fujita ,  Isamu Toba ,  Norio Takahashi ,  Hideyuki Ukita

发明人： Tatsuhiro Nojima ,  Masashi Sano ,  Yosuke Antoku ,  Mutsumi Fujita ,  Isamu Toba ,  Norio Takahashi ,  Hideyuki Ukita

IPC分类号： G11B5/39

CPC分类号： G11B5/3106 ,  G11B5/6011

摘要： A magnetic head slider includes a magnetic recording part and/or a reproducing part. The magnetic head slider includes a resistance film having temperature dependence of electrical resistance, the resistance film being positioned in the vicinity of an air bearing surface or on the air bearing surface, separately from the magnetic recording part and the reproducing part. The magnetic head slider further includes a first protective film with a smaller milling rate than the resistance film, the first protective film contacting a lower surface of the resistance film in a lamination direction of the magnetic head slider and on the air bearing surface, and/or a second protective film with a smaller milling rate than the resistance film, the second protective film contacting an upper surface of the resistance film in the lamination direction of the magnetic head slider and on the air bearing surface.

摘要翻译： 磁头滑块包括磁记录部和/或再现部。 磁头滑动器包括具有电阻温度依赖性的电阻膜，电阻膜位于空气支承表面附近或空气支承表面附近，与磁记录部分和再现部分分开。 磁头滑块还包括具有比电阻膜更小的研磨速度的第一保护膜，第一保护膜在磁头滑块的层叠方向和空气轴承表面上接触电阻膜的下表面，和/ 或具有比电阻膜更小的研磨速度的第二保护膜，第二保护膜在磁头滑块的层叠方向和空气轴承表面上接触电阻膜的上表面。

公开(公告)号：US08282843B2

公开(公告)日：2012-10-09

申请号：US12591130

申请日：2009-11-10

申请人： Tatsuhiro Nojima ,  Hisayoshi Watanabe ,  Masachika Hashino

发明人： Tatsuhiro Nojima ,  Hisayoshi Watanabe ,  Masachika Hashino

IPC分类号： B44C1/22

CPC分类号： G11B5/315 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/3163 ,  Y10T29/49044

摘要： A method of manufacturing a perpendicular magnetic head having a writing element that writes magnetic information to a recording medium includes forming a main magnetic pole part generating a magnetic field on a substrate; removing at least a part of the substrate and a material existing at a circumference of the main magnetic pole part to expose an entire circumference of the main magnetic pole part at a surface that becomes an opposing medium surface (ABS) opposite to the recording medium; forming a shield gap film that is made of a nonmagnetic material so as to cover the entire circumference of the main magnetic pole part at least at the surface that becomes the ABS; and forming a shield layer so as to cover an entire circumference of the shield gap film at least at the surface that becomes the ABS.

摘要翻译： 具有将磁信息写入记录介质的写入元件的垂直磁头的制造方法包括在基板上形成产生磁场的主磁极部， 去除所述基板的至少一部分和存在于所述主磁极部分的圆周处的材料，以在与所述记录介质相对的相对介质表面（ABS）的表面处暴露所述主磁极部分的整个周边; 形成由非磁性材料制成的屏蔽间隙膜，以便至少在成为ABS的表面上覆盖主磁极部分的整个周边; 以及形成屏蔽层，以便至少在成为ABS的表面处覆盖屏蔽间隙膜的整个周边。

公开(公告)号：US20110127234A1

公开(公告)日：2011-06-02

申请号：US12591745

申请日：2009-11-30

申请人： Hisayoshi Watanabe ,  Masachika Hashino ,  Michitoshi Tsuchiya ,  Koichi Otani ,  Tatsuhiro Nojima ,  Tsutomu Nishinaga ,  Hideyuki Ukita

发明人： Hisayoshi Watanabe ,  Masachika Hashino ,  Michitoshi Tsuchiya ,  Koichi Otani ,  Tatsuhiro Nojima ,  Tsutomu Nishinaga ,  Hideyuki Ukita

IPC分类号： G11B5/127

CPC分类号： G11B5/115 ,  G11B5/1278 ,  Y10T29/49039 ,  Y10T29/49043 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A manufacturing method for a magnetic head includes the steps of; forming a structure on a lower shield, the structure including a lower gap, a main magnetic pole and first and second side gaps; forming first and second side shields; forming an upper gap; and forming an upper shield. In the step of forming the structure, an initial lower gap layer is formed on the lower shield, the initial lower gap layer including a pre-lower-gap portion, and two to-be-removed portions that are located on opposite sides of the pre-lower-gap portion. Then, a protrusion including the main magnetic pole and the first and second side gaps is formed on the pre-lower-gap portion. With the top surface of the protrusion covered with a mask, the initial lower gap layer is etched in part to thereby form the lower gap.

摘要翻译： 一种用于磁头的制造方法包括以下步骤： 在下屏蔽上形成结构，该结构包括下间隙，主磁极和第一和第二侧隙; 形成第一和第二侧面罩; 形成上部间隙; 并形成上护罩。 在形成该结构的步骤中，在下屏蔽件上形成初始下间隙层，初始下间隙层包括预先下间隙部分，以及两个待除去部分，其位于 前下间隙部分。 然后，在前下间隙部分上形成包括主磁极和第一和第二侧间隙的突起。 在凸起的顶表面被掩模覆盖的情况下，初始的下间隙层被部分蚀刻，从而形成下间隙。

公开(公告)号：US20100172054A1

公开(公告)日：2010-07-08

申请号：US12318645

申请日：2009-01-05

申请人： Atsushi Yamaguchi ,  Michitaka Nishiyama ,  Shin Narushima ,  Hiromichi Umehara ,  Makoto Sato ,  Tatsuhiro Nojima

发明人： Atsushi Yamaguchi ,  Michitaka Nishiyama ,  Shin Narushima ,  Hiromichi Umehara ,  Makoto Sato ,  Tatsuhiro Nojima

IPC分类号： G11B5/127 ,  B44C1/22

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

摘要： In a perpendicular magnetic write head manufacturing method a magnetic layer is formed on a substrate. On the magnetic layer, first and second nonmagnetic layers are formed with different materials. A mask pattern is formed on the second nonmagnetic layer, and the second nonmagnetic layer in a region not covered with the mask pattern is removed Thereby, the patterned second nonmagnetic layer is formed while leaving the first nonmagnetic layer. The mask pattern is removed and a milling process is selectively performed on the first nonmagnetic layer and the magnetic layer with the patterned second nonmagnetic layer as a mask to remove all of the first nonmagnetic layer in an exposed region and to dig down the magnetic layer in the exposed region, thereby forming a main magnetic pole layer having an inclined part whose thickness decreases with distance from an edge position of the patterned second nonmagnetic layer.

摘要翻译： 在垂直磁性写入头制造方法中，在衬底上形成磁性层。 在磁性层上，第一和第二非磁性层由不同的材料形成。 掩模图案形成在第二非磁性层上，并且未被掩模图案覆盖的区域中的第二非磁性层被去除。由此，在离开第一非磁性层的同时形成图案化的第二非磁性层。 去除掩模图案，并且在第一非磁性层和具有图案化的第二非磁性层的磁性层上选择性地进行研磨工艺作为掩模，以去除暴露区域中的所有第一非磁性层，并将 从而形成具有倾斜部分的主磁极层，该倾斜部分的厚度随着距图案化的第二非磁性层的边缘位置的距离而减小。

公开(公告)号：US08102622B2

公开(公告)日：2012-01-24

申请号：US12318645

申请日：2009-01-05

申请人： Atsushi Yamaguchi ,  Michitaka Nishiyama ,  Shin Narushima ,  Hiromichi Umehara ,  Makoto Sato ,  Tatsuhiro Nojima

发明人： Atsushi Yamaguchi ,  Michitaka Nishiyama ,  Shin Narushima ,  Hiromichi Umehara ,  Makoto Sato ,  Tatsuhiro Nojima

IPC分类号： G11B5/127

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

摘要： In a perpendicular magnetic write head manufacturing method a magnetic layer is formed on a substrate. On the magnetic layer, first and second nonmagnetic layers are formed with different materials. A mask pattern is formed on the second nonmagnetic layer, and the second nonmagnetic layer in a region not covered with the mask pattern is removed. Thereby, the patterned second nonmagnetic layer is formed while leaving the first nonmagnetic layer. The mask pattern is removed and a milling process is selectively performed on the first nonmagnetic layer and the magnetic layer with the patterned second nonmagnetic layer as a mask to remove all of the first nonmagnetic layer in an exposed region and to dig down the magnetic layer in the exposed region, thereby forming a main magnetic pole layer having an inclined part whose thickness decreases with distance from an edge position of the patterned second nonmagnetic layer.

摘要翻译： 在垂直磁性写入头制造方法中，在衬底上形成磁性层。 在磁性层上，第一和第二非磁性层由不同的材料形成。 在第二非磁性层上形成掩模图案，并且去除未被掩模图案覆盖的区域中的第二非磁性层。 由此，形成图案化的第二非磁性层，同时离开第一非磁性层。 去除掩模图案，并且在第一非磁性层和具有图案化的第二非磁性层的磁性层上选择性地进行研磨工艺作为掩模，以去除暴露区域中的所有第一非磁性层，并将 从而形成具有倾斜部分的主磁极层，该倾斜部分的厚度随着距图案化的第二非磁性层的边缘位置的距离而减小。

公开(公告)号：US20100302680A1

公开(公告)日：2010-12-02

申请号：US12457089

申请日：2009-06-01

申请人： Kei Hirata ,  Takeo Kagami ,  Tatsuhiro Nojima ,  Hisayoshi Watanabe ,  Michitaka Nishiyama

发明人： Kei Hirata ,  Takeo Kagami ,  Tatsuhiro Nojima ,  Hisayoshi Watanabe ,  Michitaka Nishiyama

IPC分类号： G11B5/23

CPC分类号： G11B5/3116 ,  G11B5/11 ,  G11B5/1278 ,  G11B5/315

摘要： A perpendicular magnetic write head includes: a magnetic pole having an end face on an air bearing surface; and side shield layers each having an end face on the air bearing surface, and arranged on both sides, in a write track width direction, of the magnetic pole with a side gap in between. The end face of the magnetic pole has a geometry in which a width at a trailing edge is larger than a width at a leading edge. Relationship D1

摘要翻译： 垂直磁写头包括：磁极，其在空气轴承表面上具有端面; 以及侧面屏蔽层，其各自具有位于空气轴承表面上的端面，并且布置在磁极的写入磁道宽度方向的两侧，其间具有侧面间隙。 磁极的端面具有几何形状，其中后缘处的宽度大于前缘处的宽度。 在空气轴承表面中满足关系D1

公开(公告)号：US08654479B2

公开(公告)日：2014-02-18

申请号：US13535858

申请日：2012-06-28

申请人： Masashi Sano ,  Hiromichi Umehara ,  Mutsumi Fujita ,  Isamu Toba ,  Tatsuhiro Nojima ,  Hitoshi Hatate ,  Hisayoshi Watanabe

发明人： Masashi Sano ,  Hiromichi Umehara ,  Mutsumi Fujita ,  Isamu Toba ,  Tatsuhiro Nojima ,  Hitoshi Hatate ,  Hisayoshi Watanabe

IPC分类号： G11B5/127

CPC分类号： G11B5/607

摘要： A thin film magnetic recording head having a multilayer structure in which plural thin films are laminated and being a perpendicular recording type that applies a magnetic field perpendicularly to a magnetic recording medium and performs recording, includes a main magnetic pole exposed on an air bearing surface facing the magnetic recording medium and guiding a magnetic flux toward the magnetic recording medium, a thin film positioned beneath the main magnetic pole from a perspective of a lamination direction and configuring a sensor or a heater configured to determine a distance from the magnetic recording medium of the thin film magnetic recording head, and a light-absorbing portion positioned between the main magnetic pole and the thin film.

摘要翻译： 一种薄膜磁记录头，其具有层叠多个薄膜的多层结构，并且是垂直记录方式，其垂直于磁记录介质施加磁场并进行记录，该磁记录头包括暴露在空气轴承表面 磁记录介质，并向磁记录介质引导磁通量，从层叠方向的角度定位在主磁极下方的薄膜，以及配置传感器或加热器，该传感器或加热器被配置为确定与磁记录介质的距离 薄膜磁记录头和位于主磁极和薄膜之间的光吸收部分。

公开(公告)号：US08472137B2

公开(公告)日：2013-06-25

申请号：US12845349

申请日：2010-07-28

申请人： Kei Hirata ,  Kenkichi Anagawa ,  Michitaka Nishiyama ,  Hideyuki Yatsu ,  Shin Narushima ,  Hisayoshi Watanabe ,  Tatsuhiro Nojima

发明人： Kei Hirata ,  Kenkichi Anagawa ,  Michitaka Nishiyama ,  Hideyuki Yatsu ,  Shin Narushima ,  Hisayoshi Watanabe ,  Tatsuhiro Nojima

IPC分类号： G11B5/187 ,  G11B5/23

CPC分类号： G11B5/6082 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/315 ,  G11B5/3163

摘要： The present invention relates to a magnetic head, a manufacturing method therefor, a head assembly, and a magnetic recording/reproducing apparatus. According to the present invention, it includes a magnetic pole layer, a non-magnetic layer, a trailing gap layer, and a trailing shield layer. The magnetic pole layer has a pole tip exposed on a magnetic medium-facing surface. The non-magnetic layer is laid on the magnetic pole layer. The trailing shield layer is exposed on the magnetic medium-facing surface and laid over the magnetic pole layer and the non-magnetic layer with the trailing gap layer between. The magnetic pole layer and the non-magnetic layer have a continuous tapered face opposed to a lower side of the trailing shield layer. Moreover, the tapered face extends from a trailing edge of the pole tip at a constant inclination angle.

摘要翻译： 磁头及其制造方法技术领域本发明涉及一种磁头及其制造方法，磁头组件以及磁记录/重放装置。 根据本发明，它包括磁极层，非磁性层，后隙层和后屏蔽层。 磁极层具有暴露在面向磁介质的表面上的极尖。 非磁性层铺设在磁极层上。 后屏蔽层暴露在面向磁介质的表面上，并铺设在磁极层和非磁性层之间，后隙间隔在其间。 磁极层和非磁性层具有与后屏蔽层的下侧相对的连续锥形面。 此外，锥形面从极尖的后缘以恒定的倾斜角度延伸。

公开(公告)号：US08305709B2

公开(公告)日：2012-11-06

申请号：US12188706

申请日：2008-08-08

申请人： Norikazu Ota ,  Tatsuhiro Nojima ,  Tsuyoshi Umehara

发明人： Norikazu Ota ,  Tatsuhiro Nojima ,  Tsuyoshi Umehara

IPC分类号： G11B5/127

CPC分类号： G11B5/1278 ,  G11B5/312 ,  G11B5/313

摘要： A perpendicular magnetic head for writing information on a magnetic recording medium comprises an ABS, a coil for generating a magnetic flux, a magnetic pole layer, a magnetic shield layer, and a gap layer disposed between the magnetic pole layer and the magnetic shield layer. Further the magnetic head has a non-magnetic region of a non-magnetic material. The non-magnetic region is disposed in the magnetic shield layer and positioned behind the ABS at a predetermined distance. The non-magnetic region is also disposed in the magnetic shield layer and has a predetermined width. With such a configuration, an undesirable concentration of the magnetic flux on the ABS is prevented.

摘要翻译： 用于在磁记录介质上写入信息的垂直磁头包括ABS，用于产生磁通量的线圈，磁极层，磁屏蔽层和设置在磁极层和磁屏蔽层之间的间隙层。 此外，磁头具有非磁性材料的非磁性区域。 非磁性区域设置在磁屏蔽层中并且以预定距离定位在ABS后面。 非磁性区域也设置在磁屏蔽层中并且具有预定的宽度。 通过这样的结构，可以防止不均匀的磁通量集中在ABS上。