公开(公告)号：US09495980B1

公开(公告)日：2016-11-15

申请号：US14886900

申请日：2015-10-19

申请人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Kazuki Sato ,  Hironori Araki ,  Kazumasa Yasuda ,  Kenichi Takano

发明人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Kazuki Sato ,  Hironori Araki ,  Kazumasa Yasuda ,  Kenichi Takano

IPC分类号： G11B5/127 ,  G11B5/39

CPC分类号： G11B5/1278 ,  G11B5/3116 ,  G11B5/3123

摘要： A magnetic head includes a coil, a main pole and a return path section. The return path section includes a yoke section, and a coupling section coupling the yoke section to the main pole. The coil includes a first coil portion surrounding at least part of an outer peripheral surface of the coupling section, and a second coil portion surrounding at least part of the entire perimeter of the main pole as viewed from the medium facing surface. The winding of the coil includes a common portion used in common to form part of the first coil portion and part of the second coil portion.

摘要翻译： 磁头包括线圈，主极和返回路径部分。 返回通路部分包括轭部，以及将轭部连接到主极的耦合部。 线圈包括围绕耦合部分的外周表面的至少一部分的第一线圈部分和围绕从介质面向表面观察的主极的整个周边的至少一部分的第二线圈部分。 线圈的绕组包括共同使用的共同部分，以形成第一线圈部分的一部分和第二线圈部分的一部分。

公开(公告)号：US20150380016A1

公开(公告)日：2015-12-31

申请号：US14319681

申请日：2014-06-30

申请人： Yoshitaka SASAKI ,  Kazuki SATO ,  Hiroyuki ITO ,  Shigeki TANEMURA ,  Hironori ARAKI ,  Kazumasa YASUDA

发明人： Yoshitaka SASAKI ,  Kazuki SATO ,  Hiroyuki ITO ,  Shigeki TANEMURA ,  Hironori ARAKI ,  Kazumasa YASUDA

IPC分类号： G11B5/127 ,  G11B5/17 ,  G11B5/11

CPC分类号： G11B5/1278 ,  G11B5/11 ,  G11B5/17 ,  G11B5/3116 ,  G11B5/315 ,  G11B5/3163 ,  Y10T29/49048

摘要： A first side shield has a first sidewall and a second sidewall. A second side shield has a third sidewall and a fourth sidewall. The distance between the first sidewall and the third sidewall decreases with increasing proximity to the top surface of a substrate. The second and fourth sidewalls are close to perpendicular to the top surface of the substrate. Each of the second and fourth sidewalls has an edge farthest from the top surface of the substrate, the edge being parallel to the medium facing surface. The main pole has a first, a second, a third and a fourth side surface. The first side surface is opposed to the first sidewall. A portion of the second side surface is opposed to the second sidewall. The third side surface is opposed to the third sidewall. A portion of the fourth side surface is opposed to the fourth sidewall.

摘要翻译： 第一侧屏蔽件具有第一侧壁和第二侧壁。 第二侧屏蔽件具有第三侧壁和第四侧壁。 第一侧壁和第三侧壁之间的距离随着靠近衬底顶表面的增加而减小。 第二和第四侧壁靠近垂直于基板的顶表面。 第二和第四侧壁中的每一个具有距衬底顶表面最远的边缘，该边缘平行于介质面向表面。 主极具有第一，第二，第三和第四侧面。 第一侧表面与第一侧壁相对。 第二侧表面的一部分与第二侧壁相对。 第三侧面与第三侧壁相对。 第四侧面的一部分与第四侧壁相对。

公开(公告)号：US08454848B2

公开(公告)日：2013-06-04

申请号：US13235856

申请日：2011-09-19

申请人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Shigeki Tanemura ,  Hironori Araki ,  Kazuki Sato ,  Kazumasa Yasuda

发明人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Shigeki Tanemura ,  Hironori Araki ,  Kazuki Sato ,  Kazumasa Yasuda

IPC分类号： B29D11/00

CPC分类号： G11B5/314 ,  G11B5/3163 ,  G11B5/6088 ,  G11B2005/0021

摘要： A method of manufacturing the plasmon generator includes the steps of: forming a base part made of a dielectric material; forming a metal film that is to later become the plasmon generator; and forming a filler layer made of a dielectric material. The base part includes a base surface and a protruding part that protrudes from the base surface. The protruding part has a top surface that is different in level from the base surface, and a first sidewall connecting the top surface of the protruding part to the base surface. The metal film includes an adhesion part adhering to the first sidewall. The filler layer has a second sidewall disposed such that the adhesion part is interposed between the first sidewall and the second sidewall.

摘要翻译： 制造等离子体发生器的方法包括以下步骤：形成由电介质材料制成的基部; 形成以后成为等离子体发生器的金属膜; 并形成由介电材料制成的填充层。 基部包括基部表面和从基部表面突出的突出部分。 突出部分具有与基部表面不同的顶表面，以及将突出部分的顶表面连接到基部表面的第一侧壁。 金属膜包括附着在第一侧壁上的粘合部。 填料层具有第二侧壁，该第二侧壁设置成使得粘合部分插入在第一侧壁和第二侧壁之间。

公开(公告)号：US07836579B2

公开(公告)日：2010-11-23

申请号：US11982762

申请日：2007-11-05

申请人： Niraj Mahadev ,  Kazumasa Yasuda ,  Rudy Ayala

发明人： Niraj Mahadev ,  Kazumasa Yasuda ,  Rudy Ayala

IPC分类号： G11B5/29 ,  H05K3/32

CPC分类号： G11B5/11 ,  G11B5/3106 ,  G11B5/3163 ,  G11B5/40 ,  G11B5/4853 ,  Y10T29/49025 ,  Y10T29/4903 ,  Y10T29/49032 ,  Y10T29/49041 ,  Y10T29/49048 ,  Y10T29/49144 ,  Y10T29/49146 ,  Y10T29/49147 ,  Y10T29/49149

摘要： A simple method is provided for protecting slider mounted read/write transducers from electrostatic discharge damage during the manufacture of disk drives. The method involves placing a ball of conducting thermoplastic resin, such as a gold or silver epoxy, between the terminal pads of the transducer and using the ball to shunt the pads to read-head shields and the slider substrate and thence to ground. The epoxy ball is easily applied and easily removed and can be used at different stages in the manufacturing process.

摘要翻译： 提供了一种简单的方法，用于在制造磁盘驱动器期间保护滑块安装的读/写换能器免受静电放电损坏。 该方法包括将导电热塑性树脂球（例如金或银环氧树脂）放置在换能器的终端焊盘之间，并使用球将焊盘分流到读取头屏蔽和滑块基板，从而接地。 环氧球容易应用，易于除去，可在制造过程的不同阶段使用。

公开(公告)号：US5763108A

公开(公告)日：1998-06-09

申请号：US810061

申请日：1997-03-05

申请人： Jei-Wei Chang ,  Wen-Cherng Lau ,  Kazumasa Yasuda

发明人： Jei-Wei Chang ,  Wen-Cherng Lau ,  Kazumasa Yasuda

IPC分类号： G11B5/31 ,  G11B5/39 ,  H01F10/08 ,  H01F10/14 ,  H01F10/32 ,  G11B5/66

CPC分类号： G11B5/3967 ,  G11B5/3109 ,  G11B5/3163 ,  H01F10/14 ,  Y10S428/90 ,  Y10T428/115

摘要： A magnetic material which may be employed as a thin film magnetic layer within magnetic heads, and a method for forming the magnetic material as a thin film magnetic layer for use within magnetic heads. The magnetic material has an elemental composition comprising about 40 to about 60 weight percent iron, about 40 to about 60 weight percent nickel and about 0.002 to about 1 weight percent tin. The magnetic material may be formed as a thin film magnetic layer for use within a magnetic head through an electrochemical plating method employing an aqueous plating solution comprising iron (II) ions, nickel (II) ions and tin (II) ions. When electrodeposited and anisotropically magnetically aligned, or when thermally annealed and anisotropically magnetically aligned the thin film magnetic layer possess a higher saturation magnetization, a higher anisotropy, a comparable easy axis coercivity, a lower hard axis permittivity and a higher resistivity than conventional thin film magnetic layers formed of permalloy (nickel-iron 80:20 w/w) alloys.

摘要翻译： 可用作磁头内的薄膜磁性层的磁性材料，以及用于形成用作磁头内的薄膜磁性层的磁性材料的方法。 磁性材料具有包含约40至约60重量％的铁，约40至约60重量％的镍和约0.002至约1重量％的锡的元素组成。 磁性材料可以通过使用包含铁（II）离子，镍（II）离子和锡（II））离子的水性电镀溶液的电化学电镀方法形成为在磁头内使用的薄膜磁性层。 当电沉积和各向异性磁性取向时，或者当热退火和各向异性磁性取向时，薄膜磁性层具有较高的饱和磁化强度，较高的各向异性，相当的易轴矫顽力，较低的硬轴介电常数和比常规薄膜磁性更高的电阻率 由坡莫合金（镍 - 铁80:20w / w）合金形成的层。

公开(公告)号：US08493821B1

公开(公告)日：2013-07-23

申请号：US13622249

申请日：2012-09-18

申请人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Hironori Araki ,  Shigeki Tanemura ,  Kazumasa Yasuda ,  Ryuji Fujii

发明人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Hironori Araki ,  Shigeki Tanemura ,  Kazumasa Yasuda ,  Ryuji Fujii

IPC分类号： G11B11/00

CPC分类号： G11B5/1278 ,  G11B5/314 ,  G11B5/3146 ,  G11B5/6088 ,  G11B2005/0021

摘要： A thermally-assisted magnetic recording head includes: a main pole having an end face located in a medium facing surface; a waveguide; a plasmon generator having a near-field light generating part located in the medium facing surface; and a shield located on the rear side in the direction of travel of a recording medium with respect to the main pole. The shield has an end face located in the medium facing surface and lying on the rear side in the direction of travel of the recording medium with respect to the end face of the main pole. The end face of the main pole and the end face of the shield are at a distance of 50 to 300 nm from each other. The near-field light generating part is located between the end face of the main pole and the end face of the shield in the medium facing surface.

摘要翻译： 一种热辅助磁记录头，包括：主极，其具有位于介质面对表面中的端面; 波导; 等离子体发生器，其具有位于所述介质面对表面中的近场光产生部; 以及位于记录介质相对于主极的行进方向的后侧的屏蔽。 屏蔽件具有位于介质相对表面上的端面，并且位于记录介质相对于主极端面的行进方向的后侧。 主极的端面和屏蔽的端面相距50〜300nm。 近场光产生部位于介质面对面的主极的端面与屏蔽的端面之间。

公开(公告)号：US08456968B1

公开(公告)日：2013-06-04

申请号：US13402276

申请日：2012-02-22

申请人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Hironori Araki ,  Shigeki Tanemura ,  Kazumasa Yasuda ,  Ryuji Fujii

发明人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Hironori Araki ,  Shigeki Tanemura ,  Kazumasa Yasuda ,  Ryuji Fujii

IPC分类号： G11B11/00

CPC分类号： G11B5/3136 ,  G11B5/1278 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

摘要： A thermally-assisted magnetic recording head includes: a main pole and a plasmon generator disposed to align along the direction of travel of a recording medium; a first heat sink layer having two portions that are located on opposite sides of the plasmon generator in the track width direction; a second heat sink layer having two portions that are located on opposite sides of the main pole in the track width direction; and a nonmagnetic layer disposed between the plasmon generator and the main pole. The first and second heat sink layers are each made of SiC or AlN. The nonmagnetic layer is made of a material that is lower in thermal conductivity at 25° C. than alumina.

摘要翻译： 热辅助磁记录头包括：主极和等离子体激元发生器，被设置为沿着记录介质的行进方向排列; 第一散热层，其具有沿轨道宽度方向位于等离子体发生器的相对侧上的两个部分; 第二散热层，其具有沿着所述轨道宽度方向位于所述主极的相对侧上的两个部分; 以及设置在等离子体激元发生器和主极之间的非磁性层。 第一和第二散热层各自由SiC或AlN制成。 非磁性层由氧化铝在25℃导热率较低的材料制成。

公开(公告)号：US08295008B1

公开(公告)日：2012-10-23

申请号：US13189151

申请日：2011-07-22

申请人： Yoshitaka Sasaki ,  Kazuki Sato ,  Hiroyuki Ito ,  Kazumasa Yasuda ,  Atsushi Iijima

发明人： Yoshitaka Sasaki ,  Kazuki Sato ,  Hiroyuki Ito ,  Kazumasa Yasuda ,  Atsushi Iijima

IPC分类号： G11B5/127

CPC分类号： G11B5/1278 ,  G11B5/3116 ,  G11B5/3133 ,  G11B5/315 ,  G11B5/3163 ,  G11B5/607

摘要： A magnetic head includes a main pole, a write shield, and a gap part. The write shield includes first and second side shields and a top shield. The main pole has first and second side parts. The first side shield has a first sidewall. The second side shield has a second sidewall. The gap part includes a gap film and a nonmagnetic layer. The gap film is disposed to be in contact with the first and second sidewalls. The first side part has first and third side surfaces arranged in this order from the medium facing surface side. The second side part has second and fourth side surfaces arranged in this order from the medium facing surface side. The nonmagnetic layer is present between the third side surface and the first sidewall and between the fourth side surface and the second sidewall.

摘要翻译： 磁头包括主极，写屏蔽和间隙部分。 写屏蔽包括第一和第二侧面屏蔽和顶部屏蔽。 主杆具有第一和第二侧面部分。 第一侧屏蔽件具有第一侧壁。 第二侧屏蔽件具有第二侧壁。 间隙部分包括间隙膜和非磁性层。 间隙膜设置成与第一和第二侧壁接触。 第一侧部具有从面向介质的表面侧依次排列的第一和第三侧面。 第二侧部具有从面向介质的表面侧依次排列的第二和第四侧面。 非磁性层存在于第三侧表面和第一侧壁之间以及第四侧表面和第二侧壁之间。

公开(公告)号：US08289649B2

公开(公告)日：2012-10-16

申请号：US12960954

申请日：2010-12-06

申请人： Yoshitaka Sasaki ,  Kazuki Sato ,  Hiroyuki Ito ,  Takehiro Horinaka ,  Kazumasa Yasuda

发明人： Yoshitaka Sasaki ,  Kazuki Sato ,  Hiroyuki Ito ,  Takehiro Horinaka ,  Kazumasa Yasuda

IPC分类号： G11B5/127

CPC分类号： G11B5/1278 ,  G11B5/3116 ,  G11B5/315 ,  G11B5/3163 ,  Y10T29/49032

摘要： A magnetic head includes a main magnetic pole, a shield having an end face located in a medium facing surface to wrap around an end face of the main magnetic pole, and a gap part provided between the main magnetic pole and the shield. The shield includes a bottom shield, two side shields, and a top shield. The gap part includes first and second gap layers. In a manufacturing method of the magnetic head, a mold is formed on the top surface of the bottom shield, the mold having a shape determined by photolithography and being intended to be removed later. Next, the two side shields are formed on the top surface of the bottom shield by performing plating without forming a seed layer. Next, the mold is removed and then the first gap layer, the main magnetic pole, the second gap layer, and the top shield are formed in succession.

摘要翻译： 磁头包括主磁极，屏蔽，其具有位于介质面向表面中的端面以围绕主磁极的端面，以及设置在主磁极和屏蔽之间的间隙部分。 屏蔽包括底部屏蔽，两个侧面屏蔽和顶部屏蔽。 间隙部分包括第一和第二间隙层。 在磁头的制造方法中，在底部屏蔽的顶面上形成有模具，该模具具有通过光刻法确定的形状并且稍后被去除。 接下来，通过进行电镀而不形成种子层，在底部屏蔽的顶表面上形成两个侧面屏蔽。 接下来，移除模具，然后依次形成第一间隙层，主磁极，第二间隙层和顶部屏蔽。

公开(公告)号：US20070218807A1

公开(公告)日：2007-09-20

申请号：US11378100

申请日：2006-03-16

申请人： Niraj Mahadev ,  Winston Jose ,  Kazumasa Yasuda ,  Rudy Ayala ,  Tam Nguyen

发明人： Niraj Mahadev ,  Winston Jose ,  Kazumasa Yasuda ,  Rudy Ayala ,  Tam Nguyen

IPC分类号： B24B51/00 ,  B24B7/30 ,  B24B29/00

CPC分类号： B24B37/04 ,  B24B7/14 ,  B24B37/105 ,  G11B5/102 ,  Y10T29/49048

摘要： A system and method for producing micro-texture on a slider substrate using chemical & mechanical polishing techniques is described. In certain embodiments of the present invention, this is accomplished by a method comprising formulating an abrasive slurry solution of predetermined acidity (or pH value), treating a chemical mechanical polishing pad with the abrasive slurry, disposing magnetic heads on the chemical mechanical polishing pad and lapping and grinding the magnetic heads for a predetermined period of time. In certain embodiment of the present invention the lapping and grinding of the magnetic heads are accomplished using an apparatus comprising an abrasive slurry solution of predetermined acidity (pH value), a chemical mechanical polishing pad treated with the abrasive slurry solution, wherein the magnetic heads are attached to a fixture capable of disposing the heads on the chemical mechanical polishing pad.

摘要翻译： 描述了使用化学和机械抛光技术在滑块基板上产生微纹理的系统和方法。 在本发明的某些实施方案中，这通过包括配制具有预定酸度（或pH值）的研磨浆料溶液，用磨料浆料处理化学机械抛光垫，将磁头设置在化学机械抛光垫上的方法来实现， 研磨和磨削磁头一段预定的时间。 在本发明的某些实施例中，磁头的研磨和研磨是使用包括具有预定酸度（pH值）的磨料浆液，用磨料浆液处理的化学机械抛光垫的设备来实现的，其中磁头是 连接到能够将头部设置在化学机械抛光垫上的固定装置。