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21. 发明申请

US20110019313A1 SELF-ALIGNED DOUBLE FLUX GUIDED TMR SENSOR 有权
标题翻译：自对准双通道引导TMR传感器
公开(公告)号：US20110019313A1
公开(公告)日：2011-01-27
申请号：US12508843
申请日：2009-07-24
申请人： Diane L. Brown , Edward Hin Pong Lee , David John Seagle
发明人： Diane L. Brown , Edward Hin Pong Lee , David John Seagle
IPC分类号： G11B5/33
CPC分类号： G11B5/3143 , B82Y10/00 , B82Y25/00 , G01R33/098 , G11B5/00821 , G11B5/3909 , G11B5/3912 , G11B5/3948 , G11B2005/3996
摘要： A magnetic head according to one embodiment includes an array of sensor structures formed on a common substrate. Each sensor structure further comprises: a magnetic tunnel junction sensor spaced from a media-facing surface of the head; and a flux guide between the media-facing surface of the head and the sensor, the flux guide guiding magnetic flux from a magnetic medium adjacent the media-facing surface to the sensor. Additional systems and methods are also presented.
摘要翻译：根据一个实施例的磁头包括形成在公共衬底上的传感器结构阵列。每个传感器结构还包括：与头部的面向媒体的表面间隔开的磁性隧道结传感器; 以及在所述头部的介质相对表面和所述传感器之间的磁通引导件，所述磁通引导件将磁性介质从与介质相对表面相邻的磁介质传导到所述传感器。还介绍了其他系统和方法。

22. 发明授权

US07768744B2 Perpendicular magnetic recording write head with coplanar main pole and return poles and magnetic recording system 有权
标题翻译：垂直磁记录头与共平面的主极和返回极和磁记录系统
公开(公告)号：US07768744B2
公开(公告)日：2010-08-03
申请号：US11743150
申请日：2007-05-02
申请人： Wen-Chien David Hsiao , Yimin Hsu , Edward Hin Pong Lee , Vladimir Nikitin
发明人： Wen-Chien David Hsiao , Yimin Hsu , Edward Hin Pong Lee , Vladimir Nikitin
IPC分类号： G11B5/147 , G11B5/17
CPC分类号： G11B5/3116 , G11B5/11 , G11B5/1278 , G11B5/3123 , G11B5/3146 , G11B5/315
摘要： A perpendicular magnetic recording write head has a main pole and return poles that are substantially coplanar. The write head includes a main pole, two return poles and a connecting stud that are all formed as a single layer in a single deposition and patterning step. The coplanar main and return poles lie in a plane parallel to the cross-track direction. The two return poles are thus spaced from the main pole in the cross-track direction. The main pole includes a write pole connected to it but lying in a plane spaced in the along-the-track direction from the plane of the main pole. The write head includes a helical coil wrapped around the main pole. The magnetic flux path is from the write pole to the disk recording layer in a data track aligned with the write pole, to the disk underlayer beneath the recording layer, through the underlayer to data tracks spaced cross-track from the data track aligned with the write pole, and back through the return poles.
摘要翻译：垂直磁记录写头具有基本上共面的主极和返回极。写头包括在单个沉积和图案化步骤中都形成为单层的主极，两个返回极和连接柱。共平面的主极和返回极位于平行于交叉轨道方向的平面中。因此，两个返回极在交叉轨道方向上与主极间隔开。主极包括连接到其上的写入极，但是位于沿主轨方向与主极平面间隔开的平面中。写头包括缠绕在主极上的螺旋线圈。磁通路径是从记录磁极对准的数据磁道中的写入磁极到磁盘记录层，到记录层下方的磁盘底层，通过底层到从与数据磁道对准的数据磁道间隔开的数据磁道写柱，并通过返回杆返回。

23. 发明申请

US20100162556A1 ELECTRICAL LAPPING GUIDE FOR IMPROVING MAGNETIC CORE WIDTH IN A MAGNETIC RECORDING HEAD 有权
标题翻译：用于改善磁记录头中的磁心宽度的电导线
公开(公告)号：US20100162556A1
公开(公告)日：2010-07-01
申请号：US12345781
申请日：2008-12-30
申请人： Unal Murat Guruz , Edward Hin Pong Lee , Vladimir Nikitin , Michael Ming Hsiang Yang , Yuan Yao
发明人： Unal Murat Guruz , Edward Hin Pong Lee , Vladimir Nikitin , Michael Ming Hsiang Yang , Yuan Yao
IPC分类号： G11B5/127
CPC分类号： G11B5/1278 , G11B5/3163 , G11B5/3169 , G11B5/3196 , G11B5/3967 , G11B5/455 , Y10T29/49036 , Y10T29/49041 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： A method for manufacturing a magnetic head for magnetic data recording, that allows a lapping termination point to be easily and accurately determined during lapping. The method includes constructing a lapping guide that has an electrically is formed to provide an abrupt change in resistance at a point where lapping should be terminated. This point of abrupt resistance change is located relative to the flare point of the write pole that the distance between the flare point and the air bearing surface can be accurately maintained. This abrupt resistance change also makes it possible to monitor both a stripe height defining rough lapping and an angled kiss lapping process using a single measurement channel.
摘要翻译：一种用于制造用于磁数据记录的磁头的方法，其允许在研磨期间容易且准确地确定研磨终止点。该方法包括构建具有电气形成的研磨导向器，以在研磨结束的点处提供电阻的突然变化。这个突变电阻变化点相对于写极点的闪点定位，可以精确地保持扩口和空气支承表面之间的距离。这种突然的电阻变化也使得可以使用单个测量通道监测限定粗糙研磨的条纹高度和倾斜吻合研磨过程。

24. 发明授权

US07741133B2 Resistance measurements of a helical coil 有权
标题翻译：螺旋线圈的电阻测量
公开(公告)号：US07741133B2
公开(公告)日：2010-06-22
申请号：US11957484
申请日：2007-12-17
申请人： Edward Hin Pong Lee , Jennifer Ai-Ming Leung
发明人： Edward Hin Pong Lee , Jennifer Ai-Ming Leung
IPC分类号： H01L21/00 , H01F30/12 , G01R1/00
CPC分类号： G01R31/06
摘要： Test methods and components are disclosed for testing resistances of helical coils formed in magnetic recording heads. Helical coils in magnetic recording heads include a bottom coil structure, a top coil structure, and connecting structures that electrically connect the top and bottom coil structures. A test component is fabricated on the wafer along with the magnetic recording heads. The test component includes a bottom coil structure connected in series, and includes a top coil structure connected in series which is electrically disconnected from the bottom coil structure. Resistances of the top and bottom coil structures are measured in the test component. A total resistance of a helical coil is also measured. The resistance of the connecting structures in the helical coil may then be determined based on the resistance of the bottom coil structure, the resistance of the top coil structure, and the total resistance of the helical coil.
摘要翻译：公开了用于测试形成在磁记录头中的螺旋线圈的电阻的测试方法和部件。磁记录头中的螺旋线圈包括底部线圈结构，顶部线圈结构以及将顶部和底部线圈结构电连接的连接结构。测试部件与磁记录头一起制造在晶片上。测试部件包括串联连接的底部线圈结构，并且包括与底部线圈结构电气断开的串联连接的顶部线圈结构。在测试部件中测量顶部和底部线圈结构的电阻。还测量螺旋线圈的总电阻。然后可以基于底部线圈结构的电阻，顶部线圈结构的电阻和螺旋线圈的总电阻来确定螺旋线圈中的连接结构的电阻。

25. 发明申请

US20100021764A1 METHODS AND SYSTEMS FOR CONFINING SENSE CURRENT OF A CPP READ TRANSDUCER TO THE ABS SIDE OF THE FREELAYER 有权
标题翻译：将CPP读取传感器的感应电流确定到FREELAYER的ABS侧的方法和系统
公开(公告)号：US20100021764A1
公开(公告)日：2010-01-28
申请号：US12180313
申请日：2008-07-25
申请人： Ying Hong , Edward Hin Pong Lee , Aron Pentek , David John Seagle
发明人： Ying Hong , Edward Hin Pong Lee , Aron Pentek , David John Seagle
IPC分类号： G11B5/00 , B44C1/22 , B05D5/12
CPC分类号： G11B5/3909 , B82Y10/00 , B82Y25/00 , G11B5/3163 , G11B5/3929 , G11B5/398 , G11B2005/3996 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： A method in one embodiment includes forming a mask above a thin film sensor stack; forming an electrically insulating layer above the mask and sensor stack, the insulating layer having a portion extending along a nonhorizontal end of the mask; selectively removing the insulating layer except for the portion thereof extending along the nonhorizontal end of the mask; removing portions of the sensor stack that are not covered by the mask and the portion of the insulating layer, wherein an end of the portion of the insulating layer positioned away from the mask is about aligned with a back end of the sensor stack after removing the portions thereof; and removing the mask. Additional systems and methods are also presented.
摘要翻译：一个实施例中的方法包括在薄膜传感器堆叠之上形成掩模; 在所述掩模和传感器堆叠之上形成电绝缘层，所述绝缘层具有沿着所述掩模的非水平端延伸的部分; 选择性地除去除了沿着掩模的非水平端延伸的部分之外的绝缘层; 去除未被掩模覆盖的部分和绝缘层的部分，其中绝缘层的远离掩模的部分的一端在移除之后与传感器堆的后端大致对准其部分; 并取下面罩。还介绍了其他系统和方法。

26. 发明授权

US07633710B2 Magnetic head having reduced induction coil electrical resistance and method for the fabrication thereof 失效
标题翻译：具有降低的感应线圈电阻的磁头及其制造方法
公开(公告)号：US07633710B2
公开(公告)日：2009-12-15
申请号：US11477724
申请日：2006-06-28
申请人： Edward Hin Pong Lee , Vladimir Nikitin
发明人： Edward Hin Pong Lee , Vladimir Nikitin
IPC分类号： G11B5/17
CPC分类号： G11B5/17 , G11B5/3106 , G11B5/3123 , G11B5/3136 , G11B5/3163
摘要： A magnetic head including an induction coil having coil turns that are disposed between two magnetic poles of the magnetic head. The coil turns include a lower coil turn portion and an upper coil turn portion. In fabricating the induction coil, the lower coil turn portion is fabricated first, and the upper coil turn portion is fabricated directly upon the lower coil turn portion. The lower coil turn portion may be fabricated using damascene methods and the upper coil turn portion may be fabricated utilizing photolithographic methods. The lower coil turn portion and the upper coil turn portion of the induction coil turns are electrically connected, such that the thickness of the overall induction coil turns is increased. As a result, the electrical resistance of the coil turns is decreased, and heat generated in the coil is reduced.
摘要翻译：磁头包括具有设置在磁头的两个磁极之间的线圈的感应线圈。线圈匝包括下线圈匝部和上线圈匝部。在制造感应线圈时，首先制造下线圈匝部，并且将上线圈匝部直接制造在下匝匝部上。下部线圈匝部分可以使用镶嵌方法制造，并且上部线圈匝部分可以利用光刻方法制造。感应线圈匝的下线圈匝部和上线圈匝部电连接，使得整个感应线圈匝的厚度增加。结果，线圈匝的电阻降低，线圈中产生的热量减少。

27. 发明申请

US20090117407A1 SHORT FLARE DEFINITION BY ADDITIVE PROCESS FOR PERPENDICULAR HEAD 有权
标题翻译：通过添加剂进行快速定义
公开(公告)号：US20090117407A1
公开(公告)日：2009-05-07
申请号：US11934687
申请日：2007-11-02
申请人： Yi Zheng , Yimin Hsu , Wen-Chien David Hsiao , Ming Jiang , Aron Pentek , Sue Siyang Zhang , Edward Hin Pong Lee , Hung-Chin Guthrie , Ning Shi , Vladimir Nikitin , Prabodh Ratnaparkhi , Yinshi Liu
发明人： Yi Zheng , Yimin Hsu , Wen-Chien David Hsiao , Ming Jiang , Aron Pentek , Sue Siyang Zhang , Edward Hin Pong Lee , Hung-Chin Guthrie , Ning Shi , Vladimir Nikitin , Prabodh Ratnaparkhi , Yinshi Liu
IPC分类号： B05D5/12 , G11B5/33
CPC分类号： G11B5/3166 , G11B5/112 , G11B5/1278 , G11B5/3116 , G11B5/3146 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052 , Y10T428/11 , Y10T428/1186
摘要： A method for manufacturing a magnetic write head for perpendicular magnetic recording. The method includes forming a write pole, and then depositing a refill layer. A mask structure can be formed over the writ pole and refill layer, the mask structure being configured to define a stitched pole. An ion milling or reactive ion milling can then be performed to remove portions of the refill layer that are not protected by the mask structure. Then a magnetic material can be deposited to form a stitched write pole that defines a secondary flare point. The stitched pole can also be self aligned with an electrical lapping guide in order to accurately locate the front edge of the secondary flare point relative to the air bearing surface of the write head.
摘要翻译：一种用于制造用于垂直磁记录的磁写头的方法。该方法包括形成写极，然后沉积补充层。掩模结构可以形成在写极和再填充层上，掩模结构被配置为限定缝合极。然后可以执行离子铣或反应离子研磨以去除未被掩模结构保护的部分填充层。然后可以沉积磁性材料以形成限定二次闪光点的缝合写入极。缝合的杆也可以与电动研磨引导件自对准，以便相对于写入头的空气轴承表面精确地定位二次扩张点的前边缘。

28. 发明申请

US20090116152A1 MULTILAYER STITCHED YOKE FOR A HIGH DATA RATE PERPENDICULAR WRITE HEAD 审中-公开
标题翻译： MULTILERER STITCHED YOKE FOR HIGH DATA RATE PERPENDICULAR WRITE HEAD
公开(公告)号：US20090116152A1
公开(公告)日：2009-05-07
申请号：US11935284
申请日：2007-11-05
申请人： Wen-Chien David Hsiao , Yimin Hsu , Edward Hin Pong Lee , Vladimir Nikitin , Weihua Wang
发明人： Wen-Chien David Hsiao , Yimin Hsu , Edward Hin Pong Lee , Vladimir Nikitin , Weihua Wang
IPC分类号： G11B5/33
CPC分类号： G11B5/3133 , G11B5/1278 , G11B5/3116
摘要： A magnetic write head for perpendicular magnetic data recording having a write pole that is sandwiched between first and second magnetic shaping layers. The split shaping layers allow a laminated shaping layer structure allows a manufacturable laminated shaping layer to be constructed for improved data rate. One of the magnetic shaping layers can be formed as a laminated structure while that other can be a single layer of electroplated magnetic material. The shaping layers can be separated from the write pole by a thin layer of non-magnetic material to form a laminated interface between the write pole and the shaping layers. These features reduce magnetic domains and also reduce eddy currents which advantageously improves data rate.
摘要翻译：一种用于垂直磁数据记录的磁头，具有夹在第一和第二磁性成形层之间的写入极。分裂成形层允许层压成形层结构允许构建可制造的层压成形层以提高数据速率。一个磁性成形层可以形成为层叠结构，而另一个可以是单层电镀磁性材料。成形层可以通过非磁性材料的薄层与写入极分离，以在写入极和成形层之间形成层压界面。这些特征减少磁畴并且还减少涡流，这有利地提高了数据速率。

29. 发明申请

US20080112088A1 Perpendicular magnetic write head having a wrap around trailing shield with a flux return path 审中-公开
标题翻译：垂直磁性写头，具有带有通量返回路径的后挡板的包裹物
公开(公告)号：US20080112088A1
公开(公告)日：2008-05-15
申请号：US11598417
申请日：2006-11-13
申请人： Wen-Chien David Hsiao , Yimin Hsu , Edward Hin Pong Lee , Vladimir Nikitin , Aron Pentek , Yi Zheng
发明人： Wen-Chien David Hsiao , Yimin Hsu , Edward Hin Pong Lee , Vladimir Nikitin , Aron Pentek , Yi Zheng
IPC分类号： G11B5/33
CPC分类号： G11B5/1278 , G11B5/11
摘要： A magnetic write head for perpendicular magnetic recording that has write pole, a return pole and a trailing shield that is magnetically connected with magnetic return pole. The write head includes a magnetic pedestal and first and second magnetic studs that connect the trailing shield with the pedestal. The studs are laterally spaced a distance that is not greater than 5 um from the nearest side of the write pole. In other words, the studs are spaced from each other a distance that is no greater than the width of the leading edge of the write pole plus 10 um. This spacing of the studs prevents saturation of the trailing shield, maximizing field gradient and ensuring optimal magnetic write performance.
摘要翻译：用于垂直磁记录的磁头，具有写磁极，与磁返回极磁性连接的返回极和后屏蔽。写头包括一个磁性基座和将尾部屏蔽与基座相连的第一和第二磁性螺柱。螺柱横向间隔开距离写柱最近侧不超过5um的距离。换句话说，螺柱彼此间隔开不大于写入极的前缘的宽度加上10um的距离。螺栓的这种间距防止后挡板的饱和，使场梯度最大化并确保最佳磁写性能。

30. 发明授权

US07322097B2 Method of manufacturing a magnetic head having short pole yoke length 失效
标题翻译：具有短磁轭长度的磁头的制造方法
公开(公告)号：US07322097B2
公开(公告)日：2008-01-29
申请号：US10758428
申请日：2004-01-16
申请人： Richard Hsiao , Edward Hin Pong Lee
发明人： Richard Hsiao , Edward Hin Pong Lee
IPC分类号： G11B5/17 , G11B5/187
CPC分类号： G11B5/3133 , G11B5/3163 , Y10T29/49021 , Y10T29/49032 , Y10T29/49043 , Y10T29/4906 , Y10T29/49062
摘要： The induction coil of the magnetic head of the present invention is fabricated in a patterned electrical insulation material, preferably utilizing reactive ion etch (RIE) techniques. The electrical insulation material is particularly patterned such that it is formed away from the ABS surface and in the location of the induction coil. A fill layer is deposited around the patterned electrical insulation material layer, such that the fill layer is disposed at the ABS surface. In a preferred embodiment, the patterned electrical insulation material is initially fabricated from hard baked photoresist and subsequent to the deposition of the fill layer the hard baked photoresist material is removed and replaced by SiO2. The SiO2 is thereby located away from the ABS surface and the induction coil is subsequently fabricated within the SiO2 material.
摘要翻译：本发明的磁头的感应线圈以图案化的电绝缘材料制成，优选利用反应离子蚀刻（RIE）技术。电绝缘材料被特别图案化，使得其形成为远离ABS表面并且在感应线圈的位置。填充层沉积在图案化的电绝缘材料层周围，使得填充层设置在ABS表面。在优选实施例中，图案化电绝缘材料最初由硬烘焙光致抗蚀剂制造，并且在沉积填充层之后，去除硬烘烤的光致抗蚀剂材料并用SiO 2替代。因此，SiO 2 2位于离开ABS表面的位置，随后在SiO 2材料内制造感应线圈。

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