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41. 发明授权

US07292408B2 Bilayer coil insulation for magnetic write heads to minimize pole recession 有权
标题翻译：用于磁性写头的双层线圈绝缘，以尽量减少极限衰退
公开(公告)号：US07292408B2
公开(公告)日：2007-11-06
申请号：US10903341
申请日：2004-07-30
申请人： Andrew Chiu , Edward Hin Pong Lee , John Jaekoyun Yang , Michael Ming Hsiang Yang , Sue Siyang Zhang
发明人： Andrew Chiu , Edward Hin Pong Lee , John Jaekoyun Yang , Michael Ming Hsiang Yang , Sue Siyang Zhang
IPC分类号： G11B5/17
CPC分类号： G11B5/3163 , G11B5/17 , G11B5/1871
摘要： A magnetic write head for use in a data recording system having first and second magnetic pole, the first pole having a P1 pedestal. An electrically conductive coil passes through a space between the first and second poles for inducing a magnetic flux through the yoke formed by the first and second poles. A bi-layer insulation layer disposed between the poles includes a layer of photoresist for preventing voids and a layer of alumina formed thereover to provide a structural brace to prevent recession of the P1 pedestal during manufacturing operations such as soda blast.
摘要翻译：一种用于具有第一和第二磁极的数据记录系统的磁性写头，所述第一极具有P1基座。导电线圈通过第一和第二极之间的空间，用于引导通过由第一和第二极形成的轭的磁通。设置在极之间的双层绝缘层包括用于防止空隙的光致抗蚀剂层和形成在其上的氧化铝层，以提供结构支架，以防止诸如苏打爆炸的制造操作期间P1基座的凹陷。

42. 发明申请

US20070230041A1 THIN-FILM MAGNETIC HEAD CAPABLE OF SECURING INSULATING PROPERTY AND MINIMIZING PROJECTION OF A RECORDING ELEMENT SECTION DUE TO HEAT EXPANSION 有权
标题翻译：薄膜电磁头能够保护绝热材料和最小化延伸部件的记录元件部分
公开(公告)号：US20070230041A1
公开(公告)日：2007-10-04
申请号：US11692046
申请日：2007-03-27
申请人： Sumihito Morita , Kiyoshi Kobayashi , Toru Takahashi
发明人： Sumihito Morita , Kiyoshi Kobayashi , Toru Takahashi
IPC分类号： G11B5/17 , G11B5/147
CPC分类号： G11B5/17 , G11B5/3123 , G11B5/3136
摘要： A thin-film magnetic head is capable of securing an insulating property and minimizing the projection of a recording element section due to heat expansion. The thin-film magnetic head includes a pair of magnetic layers disposed with a predetermined gap therebetween on a surface facing a recording medium. The layers are connected to each other along an inner part in a height direction from the medium-facing surface. A spiral recording coil is disposed between the pair of magnetic layers and wound around a connecting portion of the pair of magnetic layers. The recording coil includes a dense coil portion formed with a pitch smaller than that of the inner part in the height direction so as to be closer to the medium-facing surface than the connecting portion. An organic insulating layer is locally formed to fill coil gaps of the dense coil portion, and coil gaps other than those of the dense coil portion are filled with an inorganic insulating layer.
摘要翻译：薄膜磁头能够确保绝缘性能，并且由于热膨胀使记录元件部分的投影最小化。薄膜磁头包括在与记录介质相对的表面上以预定间隙设置的一对磁性层。这些层沿着与介质相对表面在高度方向上的内部部分彼此连接。螺旋记录线圈设置在一对磁性层之间，并缠绕在一对磁性层的连接部分上。记录线圈包括致密线圈部分，其形成为具有比内部部分在高度方向上的间距更小的间距，以便比连接部分更靠近中间面。局部地形成有机绝缘层以填充致密线圈部分的线圈间隙，而不是致密线圈部分的线圈间隙填充有无机绝缘层。

43. 发明申请

US20070211383A1 Perpendicular magnetic recording head and method of manufacturing the same 审中-公开
标题翻译：垂直磁记录头及其制造方法
公开(公告)号：US20070211383A1
公开(公告)日：2007-09-13
申请号：US11713663
申请日：2007-03-05
申请人： Kook-hyun Sunwoo , kyoung-won Na
发明人： Kook-hyun Sunwoo , kyoung-won Na
IPC分类号： G11B5/147
CPC分类号： G11B5/3123 , G11B5/1278 , G11B5/17 , G11B5/3116 , G11B5/3163
摘要： A perpendicular magnetic recording head and a method of manufacturing the same are provided. The perpendicular magnetic recording head includes a main pole, a return yoke, and a coil which generates a magnetic field such that the main pole may record information on a recording medium. The coil has a structure that surrounds the main pole in a solenoid shape.
摘要翻译：提供了一种垂直磁记录头及其制造方法。垂直磁记录头包括主极，返回轭和产生磁场的线圈，使得主极可以将信息记录在记录介质上。线圈具有以螺线管形状围绕主极的结构。

44. 发明申请

US20070193023A1 Method of manufacturing magnetic head 审中-公开
标题翻译：制造磁头的方法
公开(公告)号：US20070193023A1
公开(公告)日：2007-08-23
申请号：US11429875
申请日：2006-05-08
申请人： Kiyotaka Maruyama , Kiyotaka Nara
发明人： Kiyotaka Maruyama , Kiyotaka Nara
IPC分类号： G11B5/133
CPC分类号： G11B5/17 , G11B5/3163 , Y10T29/49021 , Y10T29/49043 , Y10T29/49046
摘要： The method of manufacturing a magnetic head is capable of securely insulating coils in different layers when the magnetic head including a lower magnetic pole, an upper magnetic pole and a write-head constituted by a plurality of the layered coils is produced. The method of manufacturing a magnetic head, which includes a write-head, constituted by a plurality of layered coils, comprises the steps of: forming a tip magnetic pole section, which is located at a front end of the lower magnetic pole, and the coil of the first layer on a surface of a substrate; polishing the entire surface of the substrate so as to make the entire surface of the substrate, which includes a surface of the tip magnetic pole section and a surface of the coil of the first layer, even flat face; coating the surface of the substrate other than specific parts, which electrically insulate the coil of the first layer from the coil of a second layer, with resist; coating the entire surface of the substrate with an insulating layer; removing the insulating layer from the specific parts together with the resist by liftoff; and forming the coil of the second layer on the insulating layer formed on the substrate.
摘要翻译：当制造包括下磁极，上磁极和由多个分层线圈构成的写头的磁头时，制造磁头的方法能够将不同层的线圈牢固地绝缘。包括由多个分层线圈构成的写入头的磁头的制造方法包括以下步骤：形成位于下磁极前端的尖端磁极部分，以及在基板的表面上的第一层的线圈; 抛光基板的整个表面，以使包括尖端磁极部分的表面和第一层的线圈表面的基板的整个表面均匀平坦; 涂覆基板的表面，而不是用抗蚀剂将第一层的线圈与第二层的线圈电绝缘的特定部分; 用绝缘层涂覆基板的整个表面; 通过剥离与抗蚀剂一起从特定部分去除绝缘层; 以及在形成在基板上的绝缘层上形成第二层的线圈。

45. 发明申请

US20070002493A1 APPARATUS FOR PROVIDING AN ALIGNED COIL FOR AN INDUCTIVE HEAD STRUCTURE USING A PATTERNED SEED LAYER 审中-公开
标题翻译：用于使用图案种子层为感应头结构提供对齐线圈的装置
公开(公告)号：US20070002493A1
公开(公告)日：2007-01-04
申请号：US11470594
申请日：2006-09-06
申请人： Thomas Dinan , Jeffrey Lille , Son Nguyen , Hugo Santini
发明人： Thomas Dinan , Jeffrey Lille , Son Nguyen , Hugo Santini
IPC分类号： G11B5/147
CPC分类号： G11B5/486 , G11B5/17 , G11B5/313 , G11B5/3163 , G11B5/3967 , H01F17/0006 , H01F41/043 , H01F41/046 , Y10T29/4902 , Y10T29/4906 , Y10T29/49062 , Y10T29/49064 , Y10T29/49073
摘要： An apparatus for providing an aligned coil for an inductive head structure using a patterned seed layer is disclosed. The present invention uses an aligned process where the base plate imprint is fabricated on an electrically insulating layer and the reversed image is fabricated and etched into the coil insulation material, e.g., hard bake photoresist to alleviate the problems associated with complete ion removal of the seed layer between high aspect ratio coils. The present invention would also not be prone to plating non-uniformities (voids), and would not be subject to seed layer undercutting in a wet etch step process.
摘要翻译：公开了一种用于使用图案化种子层提供用于感应头结构的对准线圈的装置。本发明使用对准的工艺，其中基板印版制造在电绝缘层上，并且反转的图像被制造并蚀刻到线圈绝缘材料中，例如硬烘烤光致抗蚀剂以减轻与种子的完全离子去除相关的问题高纵横比线圈之间的层。本发明也不易于电镀不均匀（空隙），并且在湿法蚀刻步骤中不会经受种子层底切。

46. 发明授权

US07126790B1 Magnetic head for perpendicular recording with magnetic loop providing non-perpendicular write field 有权
标题翻译：磁头垂直记录，磁环提供非垂直写入场
公开(公告)号：US07126790B1
公开(公告)日：2006-10-24
申请号：US10724309
申请日：2003-11-26
申请人： Francis H. Liu , Kroum S. Stoev , Yugang Wang
发明人： Francis H. Liu , Kroum S. Stoev , Yugang Wang
IPC分类号： G11B5/147
CPC分类号： G11B5/1278 , G11B5/17 , G11B5/3116 , G11B2005/0002 , G11B2005/001
摘要： A magnetic head for writing information on perpendicular media has a write pole tip and a return pole tip with a media-facing area at least two orders of magnitude greater than that of the write pole tip, the return pole tip is spaced from a trailing corner of the write pole tip by a submicron nonferromagnetic gap. Magnetic flux emanating from the write pole tip is strongest adjacent the trailing corner and directed at an angle that is not perpendicular to the write pole tip. The angled flux provides increased torque to rotate magnetic dipoles in the adjacent media layer that are oriented substantially perpendicular to the disk surface. The media may have a soft magnetic underlayer that is spaced from the write pole tip by a distance similar to the gap spacing.
摘要翻译：用于在垂直介质上写入信息的磁头具有写磁极尖端和返回极尖端，其中介质面积比写入磁极尖端大至少两个数量级，返回磁极尖端与后角的写极尖由亚微米非铁磁隙隙。从写入极尖发出的磁通量最靠近后角并以不垂直于写入极尖的角度指向。角度通量提供增加的扭矩以旋转基本上垂直于盘表面定向的相邻介质层中的偶极子。介质可以具有与写磁极尖端间隔一段类似于间隙间隔的软磁性底层。

47. 发明授权

US07126788B1 Trailing edge recording magnetic head with reversed double bias coil and deflection pole for perpendicular recording with a non-perpendicular write field 有权
标题翻译：具有反向双偏置线圈的跟踪记录磁头和用于垂直记录的非垂直写入场的偏转极
公开(公告)号：US07126788B1
公开(公告)日：2006-10-24
申请号：US10724385
申请日：2003-11-26
申请人： Francis H. Liu , Kroum S. Stoev , Yugang Wang
发明人： Francis H. Liu , Kroum S. Stoev , Yugang Wang
IPC分类号： G11B5/17 , G11B5/147
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/17 , G11B2005/0002
摘要： A magnetic head for writing information on perpendicular media has a write pole tip, a return pole tip and a deflection pole tip is disclosed. The return pole tip has a media-facing area at least two orders of magnitude greater than that of the write pole tip, and the deflection pole tip is spaced from a trailing corner of the write pole tip by a submicron nonferromagnetic gap. Magnetic flux emanating from the write pole tip is strongest adjacent the trailing corner and directed at an angle that is not perpendicular to the write pole tip. The angled flux provides increased torque to rotate magnetic dipoles in the adjacent media layer that are oriented substantially perpendicular to the disk surface. The media may have a soft magnetic underlayer that is spaced from the write pole tip by a distance similar to the gap spacing.
摘要翻译：用于在垂直介质上写入信息的磁头具有写极端，回极极端和偏转极尖。返回极端部具有比写入磁极尖端大至少两个数量级的面向介质的区域，并且偏转极尖端与写入磁极尖端的后角部分间隔有亚微米非铁磁隙。从写入极尖发出的磁通量最靠近后角并以不垂直于写入极尖的角度指向。角度通量提供增加的扭矩以旋转基本上垂直于盘表面定向的相邻介质层中的偶极子。介质可以具有与写磁极尖端间隔一段类似于间隙间隔的软磁性底层。

48. 发明申请

US20060152849A1 Magnetic head having a write coil structure with a reduced electrical resistance for reducing thermal protrusion 有权
公开(公告)号：US20060152849A1
公开(公告)日：2006-07-13
申请号：US11375160
申请日：2006-03-14
申请人： Wen-chien Hsiao , Edward Lee , Vladimir Nikitin , Samuel Yuan
发明人： Wen-chien Hsiao , Edward Lee , Vladimir Nikitin , Samuel Yuan
IPC分类号： G11B5/17
CPC分类号： G11B5/3136 , G11B5/012 , G11B5/17 , G11B5/3116 , G11B5/313 , G11B5/40
摘要： Magnetic heads having write coil structures with reduced electrical resistances for reducing thermal protrusion are disclosed. In one illustrative example, a magnetic head includes a magnetic yoke; a write gap layer formed between upper and lower poles of the magnetic yoke; and a write coil having a plurality of coil layers. Each coil layer of the write coil extends continuously between the upper and the lower poles through a plane defined by the write gap layer. Preferably, the write coil is formed using a damascene process, such that each coil layer is wider than each coil separating layer. Such a structure provides for a relatively large amount of coil materials to be used, which reduces the coil's electrical resistance. This, in turn, reduces the heat generated by the write coils during operation. Further, either one or both of the lower and upper poles may include a horizontally laminated structure of alternating magnetic and non-magnetic dielectric layers to further reduce heating caused by eddy current losses. Since thermal protrusion is reduced, the fly height of magnetic head may be made relatively small with a reduced risk of head-to-disk crashes and disk scratches.

49. 发明授权

US07054104B2 Magnetic head with helical coil and plural outer conductor groups and method of manufacturing same 有权
标题翻译：具有螺旋线圈和多个外导体组的磁头及其制造方法
公开(公告)号：US07054104B2
公开(公告)日：2006-05-30
申请号：US10692731
申请日：2003-10-27
申请人： Yoshitaka Sasaki , Takehiro Kamigama , Hiroyuki Ito
发明人： Yoshitaka Sasaki , Takehiro Kamigama , Hiroyuki Ito
IPC分类号： G11B5/17
CPC分类号： G11B5/17 , G11B5/1877
摘要： The magnetic head in accordance with the present invention comprises first and second magnetic pole layers, a link part for magnetically linking the first and second magnetic pole layers, and a thin-film coil helically wound about at least one of the first and second magnetic pole layers. The thin-film coil comprises a plurality of inner conductor parts arranged in parallel with each other with an insulating film interposed therebetween, a plurality of first outer conductor parts located on the side of the first or second magnetic pole layer opposite from the side where the inner conductor parts are located, a plurality of second outer conductor parts located on the side of the first outer conductor parts opposite from the side where the inner conductor parts are located, and a plurality of connecting parts for connecting their corresponding inner conductor parts and first and second outer conductor parts.
摘要翻译：根据本发明的磁头包括第一和第二磁极层，用于磁耦合第一和第二磁极层的连接部分和围绕第一和第二磁极中的至少一个螺旋缠绕的薄膜线圈层。薄膜线圈包括彼此平行布置的多个内部导体部件，绝缘膜插入其间，多个第一外部导体部件位于第一或第二磁极层的与侧面相反的一侧内导体部分位于多个第二外部导体部分中，多个第二外部导体部分位于第一外部导体部分与内部导体部分所在的一侧相对的一侧，以及多个连接部分，用于连接其相应的内部导体部分和第一和第二外部导体部分。

50. 发明授权

US07029773B2 Method and system for magnetic recording using self-organized magnetic nanoparticles 失效
公开(公告)号：US07029773B2
公开(公告)日：2006-04-18
申请号：US10683383
申请日：2003-10-10
申请人： René J. M. van de Veerdonk , Xiaowei Wu , Dieter K. Weller
发明人： René J. M. van de Veerdonk , Xiaowei Wu , Dieter K. Weller
IPC分类号： G11B5/64
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/00 , G11B5/012 , G11B5/02 , G11B5/09 , G11B5/127 , G11B5/17 , G11B5/33 , G11B5/70605 , G11B5/712 , G11B5/714 , G11B5/74 , G11B5/743 , G11B5/82 , G11B11/002 , G11B11/03 , G11B2005/0002 , G11B2005/0005 , G11B2005/0021 , H01F1/0054 , H01F1/009 , H01F1/068 , Y10T428/24942 , Y10T428/25 , Y10T428/2991 , Y10T428/2995 , Y10T428/2998
摘要： A method and system for magnetic recording using self-organized magnetic nanoparticles is disclosed. The method may include depositing surfactant coated nanoparticles on a substrate, wherein the surfactant coated nanoparticles represent first bits of recorded information. The surfactant coating is then removed from selected of the surfactant coated nanoparticles. The selected nanoparticles with their surfactant coating removed may then be designated to represent second bits of recorded information. The surfactant coated nanoparticles have a first saturation magnetic moment and the selected nanoparticles with the surfactant coating removed have a second saturation magnetic moment. Therefore, by selectively removing the surfactant coating from certain nanoparticles, a write operation for recording the first and second bits of information may be performed. A read operation may be carried out by detecting the different magnetic moments of the surfactant coated nanoparticles and the non-surfactant coated nanoparticles.

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