公开(公告)号：US07464457B2

公开(公告)日：2008-12-16

申请号：US11469132

申请日：2006-08-31

申请人： Quang Le ,  Edward Hin Pong Lee ,  Jui-Lung Li ,  Aron Peniek ,  Nian-Xiang Sun

发明人： Quang Le ,  Edward Hin Pong Lee ,  Jui-Lung Li ,  Aron Peniek ,  Nian-Xiang Sun

IPC分类号： G11B5/127 ,  H04R31/00

CPC分类号： G11B5/1278 ,  G11B5/112 ,  Y10T29/49021 ,  Y10T29/49032 ,  Y10T29/49041 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052 ,  Y10T29/49067

摘要： Methods for forming write heads. One method includes forming a mask layer above a pole tip layer; forming a layer of resist above the mask layer; patterning the resist; removing portions of the mask layer not covered by the patterned resist; shaping a pole tip from the pole tip layer; depositing a layer of dielectric material above the pole tip and flux shaping layer, wherein the layer of dielectric material extends about adjacent to the mask layer; depositing a stop layer over the dielectric material, the stop layer abutting the mask layer; and polishing for forming a substantially planar upper surface comprising the mask layer and stop layer. Another method includes depositing a layer of dielectric material at least adjacent the pole tip, wherein the layer of dielectric material extends about adjacent to the mask layer. A further method includes forming dishing in the pole tip.

摘要翻译： 形成写头的方法 一种方法包括在极尖层上形成掩模层; 在掩模层之上形成抗蚀剂层; 图案化抗蚀剂; 去除未被图案化抗蚀剂覆盖的掩模层的部分; 从极尖层成形极尖; 在极尖和熔剂成形层上沉积介电材料层，其中介电材料层围绕掩模层延伸; 在电介质材料上沉积停止层，停止层邻接掩模层; 以及用于形成包括掩模层和停止层的基本平坦的上表面的抛光。 另一种方法包括沉积至少邻近极尖的介电材料层，其中电介质材料层围绕掩模层延伸。 另一种方法包括在极尖中形成凹陷。

公开(公告)号：US07450340B2

公开(公告)日：2008-11-11

申请号：US11001271

申请日：2004-11-30

申请人： Edward Hin Pong Lee ,  David John Seagle

发明人： Edward Hin Pong Lee ,  David John Seagle

IPC分类号： G11B5/29

CPC分类号： G11B5/3183 ,  G11B5/00817 ,  G11B5/3103 ,  G11B5/3163

摘要： The structure for a closely spaced, coplanar tape head array is disclosed. Narrow pitch is obtained by utilizing an overlapping coil structure, wherein write coils of adjacent heads overlap. The overlap is made possible by placing coils of adjacent heads at different levels within the thin film structure, separated by dielectric insulating layers.

摘要翻译： 公开了一种紧密间隔的共面磁带阵列的结构。 通过利用重叠的线圈结构获得窄间距，其中相邻头部的写入线圈重叠。 通过将相邻头部的线圈放置在薄膜结构内的不同级别，由介电绝缘层分开来实现重叠。

公开(公告)号：US07206169B2

公开(公告)日：2007-04-17

申请号：US10637963

申请日：2003-08-08

申请人： Edward Hin Pong Lee ,  Neil Leslie Robertson ,  Edward Dinan Thomas

发明人： Edward Hin Pong Lee ,  Neil Leslie Robertson ,  Edward Dinan Thomas

IPC分类号： G11B15/62

CPC分类号： G11B5/3173 ,  B23K26/40 ,  B23K2101/40 ,  B23K2103/50 ,  G11B5/102 ,  G11B5/3106 ,  G11B5/3133 ,  G11B5/3163 ,  G11B5/3169 ,  G11B11/08

摘要： A slider fabrication assembly and method for making the same are provided. A slider is formed on a substrate. A corrodible component of the slider is exposed to an environment in contact with the slider. A kerf region of the substrate is positioned adjacent to the slider. The kerf region is removable from the slider. A sacrificial anode is embedded in the kerf region and exposed to the environment. The sacrificial anode is electrically coupled to the corrodible component of the slider thereby forming an electrochemical cell. The sacrificial anode is less noble, i.e., more corrodible, than the corrodible slider component, and thus corrodes first. When the kerf region is removed, the corroded sacrificial anode is removed as well.

摘要翻译： 提供了一种滑块制造组件及其制造方法。 滑块形成在基板上。 滑块的可腐蚀部件暴露于与滑块接触的环境中。 衬底的切口区域邻近滑块定位。 切口区域可从滑块移除。 牺牲阳极嵌入切口区域并暴露于环境中。 牺牲阳极电耦合到滑块的可腐蚀部件，从而形成电化学电池。 牺牲阳极比可腐蚀的滑块部件更不贵，即更可腐蚀，因此首先腐蚀。 当切除切口区域时，腐蚀的牺牲阳极也被去除。

公开(公告)号：US07133263B2

公开(公告)日：2006-11-07

申请号：US10323339

申请日：2002-12-17

申请人： Edward Hin Pong Lee ,  Kim Y. Lee ,  Tsann Lin

发明人： Edward Hin Pong Lee ,  Kim Y. Lee ,  Tsann Lin

IPC分类号： G11B5/33 ,  G11B5/127

CPC分类号： G11B5/3906 ,  Y10T29/49021 ,  Y10T29/49048

摘要： A self aligned magnetoresistive sensor having a narrow and well defined track width and method of manufacture thereof.

摘要翻译： 具有窄且良好限定的轨道宽度的自对准磁阻传感器及其制造方法。

公开(公告)号：US07110217B2

公开(公告)日：2006-09-19

申请号：US10687284

申请日：2003-10-15

申请人： Edward Hin Pong Lee ,  Katalin Pentek ,  Yong Shen ,  Sue Siyang Zhang

发明人： Edward Hin Pong Lee ,  Katalin Pentek ,  Yong Shen ,  Sue Siyang Zhang

IPC分类号： G11B5/147

CPC分类号： G11B5/60 ,  G11B5/127 ,  G11B5/147

摘要： A magnetic head having an air bearing surface (ABS) and a first pole tip. A second pole tip is spaced apart from and facing the upper end of the first pole tip across a write gap. A bump extends into a portion of the upper end of the first pole tip and a portion of the bottom end of the second pole tip, the bump being positioned away from the ABS. The bump defines a throat height of the first and second pole tips.

摘要翻译： 具有空气轴承表面（ABS）和第一极端的磁头。 第二极尖与间隙隔开并面对第一极尖的上端。 凸块延伸到第一极尖端的上端的一部分和第二极尖的底端的一部分，凸块被定位成远离ABS。 凸块限定第一和第二极尖的喉部高度。

公开(公告)号：US06687083B2

公开(公告)日：2004-02-03

申请号：US09935361

申请日：2001-08-22

申请人： Wenchein Hsiao ,  Edward Hin Pong Lee ,  Neil Leslie Robertson ,  Hugo Alberto Emilio Santini ,  Joseph Francis Smyth ,  Samuel Wei-san Yuan

发明人： Wenchein Hsiao ,  Edward Hin Pong Lee ,  Neil Leslie Robertson ,  Hugo Alberto Emilio Santini ,  Joseph Francis Smyth ,  Samuel Wei-san Yuan

IPC分类号： G11B5147

CPC分类号： G11B5/3967 ,  G11B5/3116 ,  G11B5/313 ,  G11B5/3136 ,  G11B5/3163

摘要： An low profile inductive write head is provided to improve track definition and head efficiency and to reduce overcoat and pole tip protrusion and cracking caused by thermal expansion. A first insulation layer of an insulation stack enclosing the coil layer is formed of an non-magnetic inorganic insulator material such as aluminum oxide, silicon dioxide or titanium dioxide having a thickness of in the range of 0.2-0.3 microns. The thinner first insulation layer results in a significantly reduced slope of the insulation stack which decreases reflective notching during processing of the second pole tip to improve track definition. Improved thermal conduction properties of the inorganic insulator material improves heat sinking of the write coil reducing overcoat and pole tip protrusion and cracking at the pole tip/write gap layer interface.

摘要翻译： 提供了一种低调的感应写头，以提高轨道清晰度和头部效率，并减少由热膨胀引起的外涂层和极尖突起和开裂。 封闭线圈层的绝缘堆叠的第一绝缘层由厚度为0.2-0.3微米的非磁性无机绝缘体材料例如氧化铝，二氧化硅或二氧化钛形成。 较薄的第一绝缘层导致绝缘堆叠的显着减小的斜率，这降低了在第二极尖的处理期间的反射缝合，以改善轨道定义。 无机绝缘体材料的改进的导热性能改善了写入线圈的散热，从而减小了极尖/写入间隙层界面处的外涂层和极尖突起以及开裂。

公开(公告)号：US06510022B1

公开(公告)日：2003-01-21

申请号：US09504969

申请日：2000-02-15

申请人： Ashok Lahiri ,  Edward Hin Pong Lee ,  Eric James Lee ,  Hong Xu

发明人： Ashok Lahiri ,  Edward Hin Pong Lee ,  Eric James Lee ,  Hong Xu

IPC分类号： G11B5147

CPC分类号： G11B5/313 ,  G11B5/012 ,  G11B5/3116 ,  Y10T29/49032 ,  Y10T29/49041 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： The thin film magnetic head of the present invention includes an improved P2 pole tip/yoke interface structure. The interface structure includes yoke material that is formed in a concave curved shape at the interface between the P2 pole tip and the yoke, such that a right angle interface between the P2 pole tip and the yoke is eliminated. The process for forming the P2 pole tip/yoke interface includes a second CMP polishing step that is performed on the surface of the write head wafer subsequent to the plating of the P2 pole tip thereon, and subsequent to a first CMP step. This second CMP step utilizes a relatively soft polishing pad and an acidic polishing slurry having a pH within the range of approximately 1 to approximately 5, and preferably approximately 2.5. The acidic polishing slurry contains a chemical agent which preferentially attacks the P2 pole tip material, such that the second CMP step results in the recession of the upper surface of the P2 pole tip relative to the dielectric layer surrounding it, as well as the significant rounding of the upper edges of the dielectric trench in which the P2 pole tip is formed. Thereafter, when the yoke is plated onto the P2 pole tip the rounded upper edges of the dielectric trench result in a concave curved interface between the yoke and the P2 pole tip. The resulting P2 pole tip/yoke interface possesses improved magnetic flux flow control properties and results in decreased side writing. Greater track per inch areal data storage results from the reduced side writing of the improved write head.

公开(公告)号：US08441757B2

公开(公告)日：2013-05-14

申请号：US12634456

申请日：2009-12-09

申请人： Yingjian Chen ,  Liubo Hong ,  Yimin Hsu ,  Edward Hin Pong Lee ,  Katalin Pentek

发明人： Yingjian Chen ,  Liubo Hong ,  Yimin Hsu ,  Edward Hin Pong Lee ,  Katalin Pentek

IPC分类号： G11B5/11 ,  G11B5/187

CPC分类号： G11B5/3163 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/3146 ,  G11B5/315

摘要： A magnetic write head having a write pole with a tapered trailing edge. The write head has a non-magnetic step layer and a non-magnetic bump formed on the front edge of the magnetic step layer. A non-magnetic trailing gap layer is formed over the tapered trailing edge of the write pole and over the non-magnetic bump and over the non-magnetic step layer. A magnetic trailing shield is formed over at least a portion of the non-magnetic gap layer.

摘要翻译： 一种具有具有锥形后缘的写极的磁写头。 写头具有形成在磁性阶梯层的前边缘上的非磁性阶梯层和非磁性凸块。 非磁性拖尾间隙层形成在写磁极的锥形后缘和非磁性凸块之上以及非磁性阶梯层之上。 在非磁隙层的至少一部分上形成有磁性后屏蔽。

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：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。