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1. 发明授权

US5655475A Method of grinding thin-film magnetic heads using optical grinding markers 失效
标题翻译：使用光学研磨标记研磨薄膜磁头的方法
公开(公告)号：US5655475A
公开(公告)日：1997-08-12
申请号：US709921
申请日：1996-09-09
申请人： Douglas Warren Crandell , Edward Hin Pong Lee , David John Seagle
发明人： Douglas Warren Crandell , Edward Hin Pong Lee , David John Seagle
IPC分类号： B24B37/04 , B24B49/04 , B24B49/12 , G11B5/31 , G01D21/00
CPC分类号： G11B5/3166 , B24B37/048 , B24B49/04 , B24B49/12 , G11B5/3116 , G11B5/314 , G11B5/3169 , G11B5/012
摘要： According to the present grinding method, a plurality of optical markers are formed by photolithography such that the markers are embedded in a chiplet having a magnetic head. Markers are preferably in the shape of a bar having predetermined height, width and length and are spaced from each other by a predetermined distance where one end of the bars are sequentially offset from each other by a predetermined amount. During coarse grinding of the magnetic head as the magnetic head surface material is ground away, the end-face of the bars, one at a time, become visible. The closer the grinding surface approaches the desired inductive throat or MR element height, more end-faces become visible. Coarse grinding continues until a predetermined number of end-faces become visible at which point the grinding process is terminated and the magnetic head is ready for the final lapping process.
摘要翻译：根据本研磨方法，通过光刻法形成多个光学标记，使得标记物嵌入具有磁头的小芯片中。标记优选为具有预定高度，宽度和长度的条形的形状，并且彼此隔开预定距离，其中杆的一端相互偏移预定量。当磁头表面材料被磨掉时，在磁头粗磨时，钢筋的端面一次一个变得可见。研磨表面越接近所需的感应喉部或MR元件高度，越多的端面变得可见。继续进行粗磨，直到预定数量的端面变得可见，此时研磨过程终止，并且磁头准备好进行最后的研磨过程。

2. 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。

3. 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。

4. 发明授权

US08361541B2 Fabrication of magnetoresistive sensors and electronic lapping guides 有权
标题翻译：磁阻传感器和电子研磨导轨的制造
公开(公告)号：US08361541B2
公开(公告)日：2013-01-29
申请号：US12462104
申请日：2009-07-28
申请人： Edward Hin Pong Lee , David John Seagle
发明人： Edward Hin Pong Lee , David John Seagle
IPC分类号： G11B5/33 , G11B5/127
CPC分类号： G11B5/3909 , B82Y10/00 , B82Y25/00 , G11B5/3906 , G11B2005/3996 , Y10T428/1107 , Y10T428/1121
摘要： The subject matter disclosed herein provides methods for manufacturing an electronic lapping guide and a magnetic read head assembly. The magnetoresistive head assembly includes a sensing element that has a front edge and a front flux guide that has a back edge, such that the sensing element front edge and the front flux guide back edge share a common interface that defines an interface plane normal to the surface of a wafer substrate. The electronic lapping guide comprises a conductive material adapted to attach to two electrical leads for measuring a resistance through the conductive material. The conductive material may include a conductive material back edge aligned with the interface plane. The resistance of the conductive material may be inversely proportional to a conductive material length normal to the interface plane.
摘要翻译：本文公开的主题提供了用于制造电子研磨导向器和磁读头组件的方法。磁阻头组件包括具有前边缘的感测元件和具有后边缘的前通量引导件，使得感测元件前边缘和前导流引导后边缘共享公共接口，该公共接口限定与晶片基板的表面。电子研磨引导件包括适于附接到两个电引线的导电材料，用于测量通过导电材料的电阻。导电材料可以包括与界面平面对准的导电材料后边缘。导电材料的电阻可能与与界面平面垂直的导电材料长度成反比。

5. 发明申请

US20100214699A1 MAGNETORESISTIVE SENSOR WITH OVERLAID COMBINED LEADS AND SHIELDS 审中-公开
标题翻译：磁感应传感器与OVERLAID组合的领先和风格
公开(公告)号：US20100214699A1
公开(公告)日：2010-08-26
申请号：US12777993
申请日：2010-05-11
申请人： Kuok San Ho , Edward Hin Pong Lee , David John Seagle , Ching Hwa Tsang
发明人： Kuok San Ho , Edward Hin Pong Lee , David John Seagle , Ching Hwa Tsang
IPC分类号： G11B5/33
CPC分类号： G11B5/3929 , B82Y25/00 , G01R33/093 , G11B5/3912 , G11B5/398
摘要： A magnetic head according to one embodiment includes a first magnetic shield; a first insulation layer disposed above said first magnetic shield; a plurality of sensor layers disposed above said first insulation layer; two electrical leads overlying a majority of a surface of the sensor layers, the electrical leads being formed of a magnetic material and serving as a second magnetic shield; and a read width insulation member disposed above said sensor layers and between said two electrically conductive members, the read width insulation members lying in a common plane with the electrically conductive members, the common plane being oriented parallel to a plane of deposition of the read width insulation member. Other systems and methods are also presented.
摘要翻译：根据一个实施例的磁头包括第一磁屏蔽; 设置在所述第一磁屏蔽上方的第一绝缘层; 设置在所述第一绝缘层上方的多个传感器层; 两个电引线覆盖传感器层的大部分表面，电引线由磁性材料形成并用作第二磁屏蔽; 以及读宽度绝缘部件，其设置在所述传感器层之上和所述两个导电部件之间，所述读宽度绝缘部件与所述导电部件位于公共平面中，所述公共平面定向为平行于所述读宽度的沉积平面绝缘构件。还提出了其他系统和方法。

6. 发明申请

US20090296285A1 METHODS AND SYSTEMS FOR USING RESISTIVITY OF SENSOR FILM IN AN ELEMENT SHUNT 有权
标题翻译：传感器电阻在元件分析中的电阻率的方法和系统
公开(公告)号：US20090296285A1
公开(公告)日：2009-12-03
申请号：US12130389
申请日：2008-05-30
申请人： Satoru Araki , Ying Hong , Edward Hin Pong Lee , Tsann Lin , David John Seagle
发明人： Satoru Araki , Ying Hong , Edward Hin Pong Lee , Tsann Lin , David John Seagle
IPC分类号： G11B5/33 , G01R33/18 , H01L21/00 , B44C1/22
CPC分类号： G01R33/18 , G01R33/0023 , G11B5/3929
摘要： A system in one approach includes a sensor stack formed of a plurality of thin film layers; a shunt formed of at least some of the same layers as the sensor stack, the shunt being spaced from the sensor stack; a first lead coupled to the sensor stack and the shunt; and a second lead coupled to the sensor stack and the shunt. A method in one embodiment includes forming a plurality of thin film layers; removing a portion of the thin film layers for defining at least a portion of a sensor stack and at least a portion of a shunt spaced front the sensor stack; forming a first lead coupled to the at least a portion of the sensor stack and the at least a portion of the shunt and a second lead coupled to the at least a portion of the sensor stack and the at least a portion of the shunt. Additional systems and methods are also presented.
摘要翻译：一种方法的系统包括由多个薄膜层形成的传感器堆叠; 由与所述传感器堆叠的至少一些相同层形成的分流器，所述分流器与所述传感器堆叠间隔开; 耦合到传感器堆叠和分流器的第一引线; 以及耦合到传感器堆叠和分流器的第二引线。一个实施例中的方法包括形成多个薄膜层; 去除用于限定传感器堆叠的至少一部分的薄膜层的一部分和与传感器堆叠间隔开的分流器的至少一部分; 形成耦合到传感器堆叠的至少一部分和分流器的至少一部分的第一引线和耦合到传感器堆叠的至少一部分和分流器的至少一部分的第二引线。还介绍了其他系统和方法。

7. 发明授权

US07450340B2 Head design with overlapping coil for narrow pitch tape head 失效
标题翻译：头部设计与窄幅卷带头重叠线圈
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。

8. 发明申请

US20080144229A1 Magnetoresistive sensor with overlaid combined leads and shields 有权
标题翻译：具有重叠组合引线和屏蔽的磁阻传感器
公开(公告)号：US20080144229A1
公开(公告)日：2008-06-19
申请号：US11638974
申请日：2006-12-14
申请人： Kuok San Ho , Edward Hin Pong Lee , David John Seagle , Ching Hwa Tsang
发明人： Kuok San Ho , Edward Hin Pong Lee , David John Seagle , Ching Hwa Tsang
IPC分类号： G11B5/33
CPC分类号： G11B5/3929 , B82Y25/00 , G01R33/093 , G11B5/3912 , G11B5/398
摘要： An improved magnetic head for a hard disk drive including a lead overlaid read head in which the read width and read gap are reduced. The read width, which corresponds to the distance between the inner ends of the overlaid electrical leads, is reduced by the fabrication of a thin read width insulation member prior to the fabrication of the overlaid electrical leads. The read gap is reduced by fabricating the overlaid electrical leads from a magnetic, electrically conductive material such as NiFe, whereby the overlaid electrical leads also function as a magnetic shield. The read gap, which is the distance between the first and second magnetic shields is thus reduced as compared to the prior art by the thickness of the electrical leads and the thickness of the prior art second insulation layer formed between the electrical leads and the second magnetic shield.
摘要翻译：一种用于硬盘驱动器的改进磁头，包括读出宽度和读取间隙减小的引线重叠读头。通过在制造覆盖的电引线之前制造薄的读宽度绝缘部件，减小对应于重叠的电引线的内端之间的距离的读宽度。通过从诸如NiFe的磁性导电材料制造覆盖的电引线来减小读取间隙，由此重叠的电引线也用作磁屏蔽。因此，与现有技术相比，通过电引线的厚度和形成在电引线和第二磁屏蔽之间的现有技术的第二绝缘层的厚度相比，第一和第二磁屏蔽之间的距离减小了读取间隙屏蔽。

9. 发明授权

US08472148B2 Self-aligned double flux guided TMR sensor 有权
标题翻译：自对准双通量引导TMR传感器
公开(公告)号：US08472148B2
公开(公告)日：2013-06-25
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。

10. 发明授权

US08274762B2 Methods and systems for using resistivity of sensor film in an element shunt 有权
标题翻译：在元件分流中使用传感器膜电阻率的方法和系统
公开(公告)号：US08274762B2
公开(公告)日：2012-09-25
申请号：US12130389
申请日：2008-05-30
申请人： Satoru Araki , Ying Hong , Edward Hin Pong Lee , Tsann Lin , David John Seagle
发明人： Satoru Araki , Ying Hong , Edward Hin Pong Lee , Tsann Lin , David John Seagle
IPC分类号： G11B5/33
CPC分类号： G01R33/18 , G01R33/0023 , G11B5/3929
摘要： A system in one approach includes a sensor stack formed of a plurality of thin film layers; a shunt formed of at least some of the same layers as the sensor stack, the shunt being spaced from the sensor stack; a first lead coupled to the sensor stack and the shunt; and a second lead coupled to the sensor stack and the shunt. A method in one embodiment includes forming a plurality of thin film layers; removing a portion of the thin film layers for defining at least a portion of a sensor stack and at least a portion of a shunt spaced front the sensor stack; forming a first lead coupled to the at least a portion of the sensor stack and the at least a portion of the shunt and a second lead coupled to the at least a portion of the sensor stack and the at least a portion of the shunt. Additional systems and methods are also presented.
摘要翻译：一种方法的系统包括由多个薄膜层形成的传感器堆叠; 由与所述传感器堆叠的至少一些相同层形成的分流器，所述分流器与所述传感器堆叠间隔开; 耦合到传感器堆叠和分流器的第一引线; 以及耦合到传感器堆叠和分流器的第二引线。一个实施例中的方法包括形成多个薄膜层; 去除用于限定传感器堆叠的至少一部分的薄膜层的一部分和与传感器堆叠间隔开的分流器的至少一部分; 形成耦合到传感器堆叠的至少一部分和分流器的至少一部分的第一引线和耦合到传感器堆叠的至少一部分和分流器的至少一部分的第二引线。还介绍了其他系统和方法。

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