公开(公告)号：US08619517B1

公开(公告)日：2013-12-31

申请号：US13584185

申请日：2012-08-13

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

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

IPC分类号： G11B11/00

CPC分类号： G11B5/6088 ,  B82Y20/00 ,  G02B6/1226 ,  G11B5/3116 ,  G11B5/314 ,  G11B5/3163 ,  G11B2005/0021

摘要： A thermally-assisted magnetic recording head includes a waveguide having a core and a cladding, and a plasmon generator. The core has an evanescent light generating surface. The plasmon generator has a plasmon exciting part opposed to the evanescent light generating surface. Assuming a virtual straight line that passes internally through the core and that is parallel to the direction of travel of light propagating through the core, at least part of the evanescent light generating surface and at least part of the plasmon exciting part are both inclined relative to the virtual straight line such that the distance from the virtual straight line decreases with increasing proximity to the medium facing surface.

摘要翻译： 热辅助磁记录头包括具有芯和包层的波导和等离子体发生器。 核心具有ev逝的光生成面。 等离子体发生器具有与瞬逝光产生表面相对的等离子体激元部分。 假设虚拟直线在内部通过芯并且平行于传播通过芯的光的行进方向，至少部分渐逝光产生表面和至少部分等离子体激元部分都相对于 虚拟直线使得距离虚拟直线的距离随着与介质面对表面的接近程度的增加而减小。

公开(公告)号：US08514520B2

公开(公告)日：2013-08-20

申请号：US13088852

申请日：2011-04-18

申请人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Shigeki Tanemura ,  Kazuki Sato ,  Atsushi Iijima

发明人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Shigeki Tanemura ,  Kazuki Sato ,  Atsushi Iijima

IPC分类号： G11B5/11 ,  G11B5/147 ,  G11B5/187

CPC分类号： G11B5/1278 ,  G11B5/3146 ,  G11B5/3163 ,  G11B5/3967 ,  Y10T29/49032

摘要： A thin-film magnetic head is constructed such that a main magnetic pole layer, a write shield layer, a gap layer, and a thin-film coil are laminated on a substrate. The write shield layer has an opposing shield part opposing the main magnetic pole layer and a front shield part. The front shield part is connected to the opposing shield part without straddling the thin-film coil. Besides, the front shield part has a shield front end face disposed in the medium-opposing surface and a shield upper end face formed distanced from the medium-opposing surface. Further, the front shield part has a shield connecting part. The shield front end face is connected to the shield upper end face by the shield connecting part.

摘要翻译： 薄膜磁头被构造为使得主磁极层，写入屏蔽层，间隙层和薄膜线圈层叠在基板上。 写屏蔽层具有与主磁极层相对的相对的屏蔽部分和前屏蔽部分。 前屏蔽部分连接到相对的屏蔽部分而不跨越薄膜线圈。 此外，前屏蔽部分具有设置在介质相对表面中的屏蔽前端面和远离介质相对表面形成的屏蔽上端面。 此外，前屏蔽部具有屏蔽连接部。 屏蔽前端面通过屏蔽连接部与屏蔽上端面连接。

公开(公告)号：US08385019B1

公开(公告)日：2013-02-26

申请号：US13472981

申请日：2012-05-16

申请人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Kazuki Sato ,  Shigeki Tanemura ,  Hironori Araki ,  Tatsuya Shimizu

发明人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Kazuki Sato ,  Shigeki Tanemura ,  Hironori Araki ,  Tatsuya Shimizu

IPC分类号： G11B5/127

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

摘要： A magnetic head includes a coil, a main pole, a write shield, a gap part, and a return path section. The return path section is located on the front side in the direction of travel of a recording medium relative to the main pole, and connects the write shield and part of the main pole away from a medium facing surface to each other. The coil includes a specific coil element. The main pole has a top surface including an inclined portion and a flat portion. The write shield has an inclined surface. The inclined surface includes a first portion opposed to the inclined portion with the gap part therebetween, and a second portion located farther from the medium facing surface than the first portion. The specific coil element includes a portion interposed between the flat portion and the second portion.

摘要翻译： 磁头包括线圈，主极，写屏蔽，间隙部分和返回路径部分。 返回路径部分位于记录介质相对于主极的行进方向的前侧上，并且将写入屏蔽和主极的一部分远离介质相对表面彼此连接。 线圈包括特定的线圈元件。 主极具有包括倾斜部分和平坦部分的顶表面。 写屏蔽具有倾斜表面。 倾斜表面包括与其间具有间隙部分的倾斜部分相对的第一部分和位于比介质相对表面比第一部分更远的第二部分。 特定线圈元件包括插入在平坦部分和第二部分之间的部分。

公开(公告)号：US08287748B2

公开(公告)日：2012-10-16

申请号：US12654548

申请日：2009-12-23

申请人： Hironori Araki ,  Yoshitaka Sasaki ,  Hiroyuki Ito ,  Shigeki Tanemura ,  Jianing Zhou ,  Min Li

发明人： Hironori Araki ,  Yoshitaka Sasaki ,  Hiroyuki Ito ,  Shigeki Tanemura ,  Jianing Zhou ,  Min Li

IPC分类号： B44C1/22

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

摘要： A magnetic head includes: a pole layer including a track width defining portion and a wide portion; and an accommodation layer disposed on a bottom forming layer and having a groove that accommodates the pole layer. The groove includes a first portion for accommodating at least part of the track width defining portion, and a second portion for accommodating at least part of the wide portion. A manufacturing method for the magnetic head includes the steps of: forming a groove defining layer on a nonmagnetic layer that is intended to later become the accommodation layer; forming a mask that covers an area of the nonmagnetic layer where to form the first portion of the groove; etching the nonmagnetic layer so that the second portion of the groove is formed in the nonmagnetic layer; removing the mask; and taper-etching the nonmagnetic layer so that the first portion of the groove is formed in the nonmagnetic layer and the groove is thereby completed.

摘要翻译： 磁头包括：包括轨道宽度限定部分和宽部分的极层; 以及容纳层，其设置在底部形成层上并具有容纳极层的槽。 凹槽包括用于容纳轨道宽度限定部分的至少一部分的第一部分和用于容纳至少部分宽部分的第二部分。 磁头的制造方法包括以下步骤：在旨在稍后成为调节层的非磁性层上形成凹槽限定层; 形成覆盖形成所述槽的第一部分的非磁性层的区域的掩模; 蚀刻非磁性层，使得凹槽的第二部分形成在非磁性层中; 去除面膜; 并且对非磁性层进行锥形蚀刻，使得凹槽的第一部分形成在非磁性层中，从而完成凹槽。

公开(公告)号：US08194511B2

公开(公告)日：2012-06-05

申请号：US12727666

申请日：2010-03-19

申请人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Shigeki Tanemura ,  Hironori Araki ,  Atsushi Iijima

发明人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Shigeki Tanemura ,  Hironori Araki ,  Atsushi Iijima

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  G11B5/3163 ,  G11B5/6088 ,  G11B2005/001 ,  G11B2005/0021

摘要： A near-field light generating element has an outer surface including a bottom surface that lies at an end closer to a top surface of a substrate, a waveguide facing surface that lies at an end farther from the top surface of the substrate and faces a waveguide, a front end face located in a medium facing surface, and a side surface that connects the bottom surface, the waveguide facing surface and the front end face to each other. The front end face includes a first side that lies at an end of the bottom surface, a tip that lies at an end farther from the top surface of the substrate and forms a near-field light generating part, a second side that connects an end of the first side to the tip, and a third side that connects the other end of the first side to the tip. The waveguide facing surface includes a width changing portion that has a width in a direction parallel to the bottom surface and the front end face, the width decreasing with decreasing distance to the front end face.

摘要翻译： 近场光产生元件具有外表面，该外表面包括位于更靠近基板顶表面的一端的底表面，位于远离基板顶表面的一端的波导对面的表面 ，位于介质相对表面中的前端面以及将所述底表面，所述波导对向表面和所述前端面彼此连接的侧表面。 所述前端面包括位于所述底面的端部的第一侧，位于距离所述基板的上表面更远的一端并形成近场光产生部的端部，所述第二侧将端部 并且将第一侧的另一端连接到尖端的第三侧。 面向波导的表面包括宽度改变部分，该宽度改变部分在平行于底面和前端面的方向上具有宽度，宽度随着与前端面的距离的减小而减小。

公开(公告)号：US08107192B2

公开(公告)日：2012-01-31

申请号：US12588686

申请日：2009-10-23

申请人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Shigeki Tanemura ,  Hironori Araki ,  Atsushi Iijima

发明人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Shigeki Tanemura ,  Hironori Araki ,  Atsushi Iijima

IPC分类号： G11B5/127

CPC分类号： G11B5/314 ,  G11B5/1278 ,  G11B2005/001 ,  G11B2005/0021

摘要： A heat-assisted magnetic recording head includes a slider, an edge-emitting laser diode fixed to the slider, and an external mirror fixed to the laser diode. The laser diode has: an emitting end face that includes an emission part for emitting laser light; a mounting surface that lies at an end in a direction perpendicular to the plane of an active layer and faces the slider; and a rear surface opposite to the mounting surface. The external mirror includes: a first to-be-fixed part disposed along the emitting end face; a second to-be-fixed part disposed along the rear surface; and a coupling part that couples the first and second to-be-fixed parts to each other. The first to-be-fixed part has a reflecting surface that reflects the laser light emitted from the emission part toward the waveguide.

摘要翻译： 热辅助磁记录头包括滑块，固定到滑块的边缘发射激光二极管和固定到激光二极管的外反射镜。 激光二极管具有：发射端面，其包括用于发射激光的发射部分; 安装表面位于垂直于有源层的平面的方向上的端部并且面向滑块; 以及与安装表面相对的后表面。 外部反射镜包括：沿着发射端面设置的第一待固定部分; 沿着后表面设置的第二待固定部分; 以及将第一和第二固定部件彼此连接的联接部。 第一待固定部分具有将从发射部分发射的激光朝向波导反射的反射表面。

公开(公告)号：US08056214B2

公开(公告)日：2011-11-15

申请号：US12461644

申请日：2009-08-19

申请人： Yoshitaka Sasaki ,  Kazuo Ishizaki ,  Hironori Araki ,  Hiroyuki Ito ,  Shigeki Tanemura ,  Atsushi Iljima

发明人： Yoshitaka Sasaki ,  Kazuo Ishizaki ,  Hironori Araki ,  Hiroyuki Ito ,  Shigeki Tanemura ,  Atsushi Iljima

IPC分类号： G11B5/127 ,  H04R31/00

CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/3163 ,  G11B5/3967 ,  Y10T29/49039 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A magnetic head includes a pole layer, first and second side shields, and an encasing layer having a pole groove that accommodates the pole layer and first and second side shield grooves that accommodate the first and second side shields. In a manufacturing method for the magnetic head, the pole groove and first and second initial side shield grooves are formed in a nonmagnetic layer using an etching mask layer having first to third openings. In the manufacturing method, a wall face of the first initial side shield groove that is closer to the pole groove and a wall face of the second initial side shield groove that is closer to the pole groove are etched by dry etching to thereby complete the first and second side shield grooves.

摘要翻译： 磁头包括极层，第一和第二侧面屏蔽以及具有容纳磁极层的磁极槽和容纳第一和第二侧面屏蔽件的第一和第二侧面屏蔽槽的封装层。 在磁头的制造方法中，使用具有第一至第三开口的蚀刻掩模层，将磁极槽和第一和第二初始侧屏蔽槽形成为非磁性层。 在制造方法中，通过干蚀刻来蚀刻靠近极槽的第一初始侧屏蔽槽的壁面和靠近极槽的第二初始侧屏蔽槽的壁面，从而完成第一 和第二侧屏蔽槽。

公开(公告)号：US20110228417A1

公开(公告)日：2011-09-22

申请号：US12727620

申请日：2010-03-19

申请人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Shigeki Tanemura ,  Hironori Araki ,  Atsushi Iijima

发明人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Shigeki Tanemura ,  Hironori Araki ,  Atsushi Iijima

IPC分类号： G11B5/02

CPC分类号： G11B5/314 ,  G11B5/3163 ,  G11B5/6088 ,  G11B2005/001 ,  G11B2005/0021

摘要： A near-field light generating element has an outer surface. The outer surface includes a bottom surface, first and second inclined surfaces, an edge part that connects the first and second inclined surfaces to each other, and a front end face located in a medium facing surface. The front end face includes a first side that lies at an end of the first inclined surface, a second side that lies at an end of the second inclined surface, and a tip that is formed by contact of the first and second sides with each other and forms a near-field light generating part. Each of the first side and the second side has a lower part and an upper part that are continuous with each other. An angle formed between the upper part of the first side and the upper part of the second side is smaller than that formed between the lower part of the first side and the lower part of the second side.

摘要翻译： 近场光产生元件具有外表面。 外表面包括底面，第一和第二倾斜表面，将第一和第二倾斜表面彼此连接的边缘部分和位于介质面向表面中的前端面。 前端面包括位于第一倾斜面的端部的第一侧，位于第二倾斜面的端部的第二侧和通过第一和第二侧面彼此接触形成的前端部 并形成近场光产生部。 第一侧和第二侧中的每一个具有彼此连续的下部和上部。 形成在第一侧的上部和第二侧的上部之间的角度小于在第一侧的下部和第二侧的下部之间形成的角度。

公开(公告)号：US20110210095A1

公开(公告)日：2011-09-01

申请号：US12714998

申请日：2010-03-01

申请人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Shigeki Tanemura ,  Hironori Araki

发明人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Shigeki Tanemura ,  Hironori Araki

IPC分类号： G11B5/33 ,  B24B1/00

CPC分类号： G11B5/314 ,  B24B37/048 ,  G11B5/3163 ,  G11B2005/0021

摘要： A near-field light generating element has an outer surface including first and second inclined surfaces and an edge part that connects the first and second inclined surfaces to each other. In a method of manufacturing the near-field light generating element, a polishing stopper layer is initially formed on a metal layer, and the polishing stopper layer and the metal layer are etched so that the metal layer is provided with the first inclined surface. Next, a coating layer is formed to cover the metal layer and the polishing stopper layer. The coating layer is made of a non-metallic inorganic material that has an etching rate lower than that of the metal layer in a second etching step to be performed later. Next, the coating layer is polished until the polishing stopper layer is exposed. Next, the second etching step is performed to etch the polishing stopper layer and the metal layer using the coating layer as the etching mask. This provides the metal layer with the second inclined surface and the edge part, and thereby makes the metal layer into the near-field light generating element.

摘要翻译： 近场光产生元件具有包括第一和第二倾斜表面的外表面和将第一和第二倾斜表面彼此连接的边缘部分。 在制造近场光产生元件的方法中，最初在金属层上形成抛光阻挡层，并且蚀刻抛光阻挡层和金属层，使得金属层设置有第一倾斜表面。 接下来，形成涂覆层以覆盖金属层和抛光阻挡层。 在稍后执行的第二蚀刻步骤中，涂层由非金属无机材料制成，其蚀刻速率低于金属层的蚀刻速率。 接下来，抛光涂层直到抛光停止层露出。 接下来，进行第二蚀刻步骤，使用涂层作为蚀刻掩模来蚀刻抛光停止层和金属层。 由此，使金属层具有第二倾斜面和边缘部，由此使金属层成为近场光产生元件。

公开(公告)号：US20110147343A1

公开(公告)日：2011-06-23

申请号：US12654548

申请日：2009-12-23

申请人： Hironori Araki ,  Yoshitaka Sasaki ,  Hiroyuki Ito ,  Shigeki Tanemura ,  Jianing Zhou ,  Min Li

发明人： Hironori Araki ,  Yoshitaka Sasaki ,  Hiroyuki Ito ,  Shigeki Tanemura ,  Jianing Zhou ,  Min Li

IPC分类号： G11B5/127

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

摘要： A magnetic head includes: a pole layer including a track width defining portion and a wide portion; and an accommodation layer disposed on a bottom forming layer and having a groove that accommodates the pole layer. The groove includes a first portion for accommodating at least part of the track width defining portion, and a second portion for accommodating at least part of the wide portion. A manufacturing method for the magnetic head includes the steps of; forming a groove defining layer on a nonmagnetic layer that is intended to later become the accommodation layer; forming a mask that covers an area of the nonmagnetic layer where to form the first portion of the groove; etching the nonmagnetic layer so that the second portion of the groove is formed in the nonmagnetic layer; removing the mask; and taper-etching the nonmagnetic layer so that the first portion of the groove is formed in the nonmagnetic layer and the groove is thereby completed.

摘要翻译： 磁头包括：包括轨道宽度限定部分和宽部分的极层; 以及容纳层，其设置在底部形成层上并具有容纳极层的槽。 凹槽包括用于容纳轨道宽度限定部分的至少一部分的第一部分和用于容纳至少部分宽部分的第二部分。 磁头的制造方法包括以下步骤： 在非磁性层上形成凹槽限定层，所述非磁性层旨在稍后成为所述容纳层; 形成覆盖形成所述槽的第一部分的非磁性层的区域的掩模; 蚀刻非磁性层，使得凹槽的第二部分形成在非磁性层中; 去除面膜; 并且对非磁性层进行锥形蚀刻，使得凹槽的第一部分形成在非磁性层中，从而完成凹槽。