公开(公告)号：US08082657B2

公开(公告)日：2011-12-27

申请号：US12345773

申请日：2008-12-30

申请人： Edward Hin Pong Lee ,  Vladimir Nikitin ,  Michael Ming Hsiang Yang ,  Yuan Yao

发明人： Edward Hin Pong Lee ,  Vladimir Nikitin ,  Michael Ming Hsiang Yang ,  Yuan Yao

IPC分类号： G11B5/127 ,  H04R31/00

CPC分类号： G11B5/3163 ,  G11B5/1278 ,  G11B5/3169 ,  G11B5/3196 ,  G11B5/455 ,  Y10T29/49025 ,  Y10T29/4903 ,  Y10T29/49032 ,  Y10T29/49041 ,  Y10T29/49043 ,  Y10T29/49046 ,  Y10T29/49048

摘要： A method for manufacturing a magnetic write head that allows the location of the flare point of a write pole to be accurately located relative to the air bearing surface. The method includes the construction of a lapping guide having an edge feature that is easily and accurately located relative to the flare point of the write pole. This edge feature provides an abrupt change in electrical resistance across the lapping guide at a point when lapping should be terminated. And, since this feature can accurately located relative to the flare point, this provides an easily discernable ending point for lapping.

摘要翻译： 一种用于制造磁性写入头的方法，该方法允许将写入磁极的闪光点相对于空气轴承表面精确定位。 该方法包括构造具有相对于写入极的扩张点容易且精确地定位的边缘特征的研磨引导件。 该边缘特征提供了在研磨结束时的研磨导轨上的电阻的突然变化。 而且，由于该功能可以相对于喇叭点精确定位，因此为研磨提供了一个易于识别的终点。

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。

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。

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。

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。

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。

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。

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。

公开(公告)号：US20080002290A1

公开(公告)日：2008-01-03

申请号：US11478925

申请日：2006-06-30

申请人： Donald G. Allen ,  Edward Hin Pong Lee ,  Jennifer Ai-Ming Loo

发明人： Donald G. Allen ,  Edward Hin Pong Lee ,  Jennifer Ai-Ming Loo

IPC分类号： G11B5/17

CPC分类号： G11B5/1278 ,  G11B5/3123 ,  G11B5/3163

摘要： A magnetic recording head for use in perpendicular magnetic recording having a design that allows the write coil to be manufactured by a damascene process for increased coil pitch and reduced coil resistance. The magnetic write head includes a photoresist dam structure that allows a hard baked photoresist to be formed that does not extend to the air bearing surface (ABS). Since the photoresist dam prevents the hard baked photoresist from reaching the ABS, the a damascene process, in which the hard baked photoresist remains in the finished write head, can be used to produce the write head. The use of such a damascene process advantageously allows the space between the coil turns to be reduced, which maximizes the number of turns that can be used and also maximizes the number width to which the coil turns can be constructed, thereby minimizing the electrical resistance of the write coil.

摘要翻译： 一种用于垂直磁记录的磁记录头，其具有允许通过镶嵌工艺制造写入线圈以增加线圈间距并减小线圈电阻的设计。 磁写头包括光致抗蚀剂阻挡结构，其允许形成不延伸到空气轴承表面（ABS）的硬烘烤光致抗蚀剂。 由于光致抗蚀剂防止了硬烘烤的光致抗蚀剂到达ABS，所以可以使用其中硬烘烤的光致抗蚀剂保留在完成的写入头中的镶嵌工艺来产生写入头。 使用这种镶嵌工艺有利地减小了线圈匝之间的空间，这使得可以使用的匝数最大化，并且还使构造线圈匝数的数量最大化，从而最小化电阻 写线圈。

公开(公告)号：US20080002289A1

公开(公告)日：2008-01-03

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。