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1. 发明申请

US20120152891A1 METHOD FOR MANUFACTURING A MAGNETIC TAPE HEAD USING A TMR SENSOR 有权
标题翻译：使用TMR传感器制造磁带头的方法
公开(公告)号：US20120152891A1
公开(公告)日：2012-06-21
申请号：US12973791
申请日：2010-12-20
申请人： Diane L. Brown , Quang Le , Chang-Man Park , David J. Seagle , Eileen Yan
发明人： Diane L. Brown , Quang Le , Chang-Man Park , David J. Seagle , Eileen Yan
IPC分类号： G11B5/187
CPC分类号： G11B5/00826 , G11B5/3163 , G11B5/3909 , G11B5/3977
摘要： A method for manufacturing a magnetic tape head having a data sensor and a servo sensor. The data sensor and servo sensor are each separated from first and second magnetic shields by a non-magnetic gap layer, and the gap thickness for the servo sensor is larger than the gap thickness for the data sensor. The method involves depositing a first gap layer over shield structures, then depositing a second gap layer using a liftoff process to remove the second gap layer over the data sensor region. A plurality of sensor layers are then deposited, and a stripe height defining mask structure is formed over the data and servo sensor regions, the mask having a back edge that is configured to define a stripe height of the data and servo sensors. An ion milling is then performed to define the stripe height and to remove gap material from the field.
摘要翻译：一种具有数据传感器和伺服传感器的磁带头的制造方法。数据传感器和伺服传感器通过非磁隙层与第一和第二磁屏蔽分开，伺服传感器的间隙厚度大于数据传感器的间隙厚度。该方法包括在屏蔽结构上沉积第一间隙层，然后使用提升过程沉积第二间隙层以去除数据传感器区域上的第二间隙层。然后沉积多个传感器层，并且在数据和伺服传感器区域上形成条纹高度限定掩模结构，掩模具有配置为限定数据和伺服传感器的条带高度的后边缘。然后进行离子铣削以限定条带高度并从场中移除间隙材料。

2. 发明申请

US20110261487A1 MATERIAL FOR USE IN A TMR READ GAP WITHOUT ADVERSELY AFFECTING THE TMR EFFECT 有权
标题翻译：用于TMR读取差距的材料，不会对TMR效应产生不利影响
公开(公告)号：US20110261487A1
公开(公告)日：2011-10-27
申请号：US12916256
申请日：2010-10-29
申请人： SATORU ARAKI , Diane L. Brown , Hiroaki Chihaya , Dustin W. Erickson , David J. Seagle
发明人： SATORU ARAKI , Diane L. Brown , Hiroaki Chihaya , Dustin W. Erickson , David J. Seagle
IPC分类号： G11B5/127 , C25D5/12 , C23C14/34
CPC分类号： G11B5/255 , B82Y10/00 , B82Y25/00 , C25D5/12 , G11B5/00821 , G11B5/23 , G11B5/3909 , G11B5/3912 , G11B5/3958 , G11B5/3977 , G11B5/398
摘要： Structures and methods for fabrication servo and data heads of tape modules are provided. The servo head may have two shield layers spaced apart by a plurality of gap layers and a sensor. Similarly, the data head may have two shield layers spaced apart by a plurality of gap layers and a sensor. The distance between the shield layers of the servo head may be greater than the distance between the shield layers of the data head. The material of the gap layers may include tantalum or an alloy of nickel and chromium. The material for the gap layers permits deposition of gap layers with sufficiently small surface roughness to prevent distortion of the tape module and increase the stability of the tape module operation.
摘要翻译：提供了用于制造磁带模块的伺服和数据磁头的结构和方法。伺服头可以具有由多个间隙层和传感器隔开的两个屏蔽层。类似地，数据头可以具有由多个间隙层和传感器隔开的两个屏蔽层。伺服头的屏蔽层之间的距离可以大于数据头的屏蔽层之间的距离。间隙层的材料可以包括钽或镍和铬的合金。用于间隙层的材料允许以足够小的表面粗糙度沉积间隙层，以防止带模块的变形并增加带模块操作的稳定性。

3. 发明授权

US08804287B2 Material for use in a TMR read gap without adversely affecting the TMR effect 有权
标题翻译：用于TMR读取间隙的材料，不会对TMR影响产生不利影响
公开(公告)号：US08804287B2
公开(公告)日：2014-08-12
申请号：US12916256
申请日：2010-10-29
申请人： Satoru Araki , Diane L. Brown , Hiroaki Chihaya , Dustin W. Erickson , David J. Seagle
发明人： Satoru Araki , Diane L. Brown , Hiroaki Chihaya , Dustin W. Erickson , David J. Seagle
IPC分类号： G11B5/33
CPC分类号： G11B5/255 , B82Y10/00 , B82Y25/00 , C25D5/12 , G11B5/00821 , G11B5/23 , G11B5/3909 , G11B5/3912 , G11B5/3958 , G11B5/3977 , G11B5/398
摘要： Structures and methods for fabrication servo and data heads of tape modules are provided. The servo head may have two shield layers spaced apart by a plurality of gap layers and a sensor. Similarly, the data head may have two shield layers spaced apart by a plurality of gap layers and a sensor. The distance between the shield layers of the servo head may be greater than the distance between the shield layers of the data head. The material of the gap layers may include tantalum or an alloy of nickel and chromium. The material for the gap layers permits deposition of gap layers with sufficiently small surface roughness to prevent distortion of the tape module and increase the stability of the tape module operation.
摘要翻译：提供了用于制造磁带模块的伺服和数据磁头的结构和方法。伺服头可以具有由多个间隙层和传感器隔开的两个屏蔽层。类似地，数据头可以具有由多个间隙层和传感器隔开的两个屏蔽层。伺服头的屏蔽层之间的距离可以大于数据头的屏蔽层之间的距离。间隙层的材料可以包括钽或镍和铬的合金。用于间隙层的材料允许以足够小的表面粗糙度沉积间隙层，以防止带模块的变形并增加带模块操作的稳定性。

4. 发明授权

US08472146B2 Current perpendicular magnetoresistive sensor with a dummy shield for capacitance balancing 有权
标题翻译：电流垂直磁阻传感器，带有用于电容平衡的虚拟屏蔽
公开(公告)号：US08472146B2
公开(公告)日：2013-06-25
申请号：US12870561
申请日：2010-08-27
申请人： Diane L. Brown , David J. Seagle
发明人： Diane L. Brown , David J. Seagle
IPC分类号： G11B5/33 , G11B5/127
CPC分类号： G11B5/398 , G11B5/3912 , H05K3/00
摘要： A perpendicular magnetic read head having a balanced capacitive coupling with the substrate. The read head includes a magnetoresistive sensor with first and second magnetic, electrically conductive shields separated from a substrate by a layer of non-magnetic, electrically insulating material. A dummy magnetic shield is formed on the non-magnetic electrically insulating layer and is electrically connected with the second magnetic, electrically conductive shield. The dummy shield is formed to have a capacitive coupling with the substrate that matches the capacitive coupling of the first magnetic, electrically conductive shield with the substrate.
摘要翻译：具有与衬底的平衡电容耦合的垂直磁读头。读头包括磁阻传感器，其具有通过非磁性，电绝缘材料层与衬底分离的第一和第二磁性导电屏蔽层。在非磁性电绝缘层上形成虚拟磁屏蔽并与第二磁导电屏蔽电连接。虚设屏蔽形成为具有与第一磁导电屏蔽与基板的电容耦合匹配的基板的电容耦合。

5. 发明授权

US08333898B2 Method for manufacturing a magnetic tape head using a TMR sensor 有权
标题翻译：使用TMR传感器制造磁带头的方法
公开(公告)号：US08333898B2
公开(公告)日：2012-12-18
申请号：US12973791
申请日：2010-12-20
申请人： Diane L. Brown , Quang Le , Chang-Man Park , David J. Seagle , Eileen Yan
发明人： Diane L. Brown , Quang Le , Chang-Man Park , David J. Seagle , Eileen Yan
IPC分类号： B44C1/22
CPC分类号： G11B5/00826 , G11B5/3163 , G11B5/3909 , G11B5/3977
摘要： A method for manufacturing a magnetic tape head having a data sensor and a servo sensor. The data sensor and servo sensor are each separated from first and second magnetic shields by a non-magnetic gap layer, and the gap thickness for the servo sensor is larger than the gap thickness for the data sensor. The method involves depositing a first gap layer over shield structures, then depositing a second gap layer using a liftoff process to remove the second gap layer over the data sensor region. A plurality of sensor layers are then deposited, and a stripe height defining mask structure is formed over the data and servo sensor regions, the mask having a back edge that is configured to define a stripe height of the data and servo sensors. An ion milling is then performed to define the stripe height and to remove gap material from the field.
摘要翻译：一种具有数据传感器和伺服传感器的磁带头的制造方法。数据传感器和伺服传感器通过非磁隙层与第一和第二磁屏蔽分开，伺服传感器的间隙厚度大于数据传感器的间隙厚度。该方法包括在屏蔽结构上沉积第一间隙层，然后使用提升过程沉积第二间隙层以去除数据传感器区域上的第二间隙层。然后沉积多个传感器层，并且在数据和伺服传感器区域上形成条纹高度限定掩模结构，掩模具有配置为限定数据和伺服传感器的条带高度的后边缘。然后进行离子铣削以限定条带高度并从场中移除间隙材料。

6. 发明申请

US20120050919A1 CURRENT PERPENDICULAR MAGNETORESISTIVE SENSOR WITH CAPACITANCE BALANCING 有权
标题翻译：具有电容平衡的当前全球磁传感器
公开(公告)号：US20120050919A1
公开(公告)日：2012-03-01
申请号：US12870561
申请日：2010-08-27
申请人： Diane L. Brown , David J. Seagle
发明人： Diane L. Brown , David J. Seagle
IPC分类号： G11B5/33 , C25D5/10 , G11B5/48
CPC分类号： G11B5/398 , G11B5/3912 , H05K3/00
摘要： A perpendicular magnetic read head having a balanced capacitive coupling with the substrate. The read head includes a magnetoresistive sensor with first and second magnetic, electrically conductive shields separated from a substrate by a layer of non-magnetic, electrically insulating material. A dummy magnetic shield is formed on the non-magnetic electrically insulating layer and is electrically connected with the second magnetic, electrically conductive shield. The dummy shield is formed to have a capacitive coupling with the substrate that matches the capacitive coupling of the first magnetic, electrically conductive shield with the substrate.
摘要翻译：具有与衬底的平衡电容耦合的垂直磁读头。读头包括磁阻传感器，其具有通过非磁性，电绝缘材料层与衬底分离的第一和第二磁性导电屏蔽层。在非磁性电绝缘层上形成虚拟磁屏蔽并与第二磁导电屏蔽电连接。虚设屏蔽形成为具有与第一磁导电屏蔽与基板的电容耦合匹配的基板的电容耦合。

7. 发明授权

US07919967B2 Verification of a fabrication process used to form read elements in magnetic heads 有权
标题翻译：用于在磁头中形成读取元件的制造工艺的验证
公开(公告)号：US07919967B2
公开(公告)日：2011-04-05
申请号：US11965502
申请日：2007-12-27
申请人： Satoru Araki , Robert S. Beach , David J. Seagle
发明人： Satoru Araki , Robert S. Beach , David J. Seagle
IPC分类号： G01R31/08 , G01R27/08
CPC分类号： G01R31/2884 , G01R33/1207 , G11B5/127
摘要： Test methods and components are disclosed for testing the quality of a fabrication process used to form read elements in magnetic heads. A wafer is populated with one or more test components along with magnetic heads. The test components are formed by the same or similar fabrication processes as the read elements, but do not include a conductive MR sensor between the test leads. By measuring the resistance of the test components, the formation of parasitic shunts can be identified in the test components, which may indicate the formation of parasitic shunts in the read elements. Thus, the quality of the fabrication process in forming read elements in magnetic head may be determined.
摘要翻译：公开了用于测试用于在磁头中形成读取元件的制造工艺的质量的测试方法和部件。晶片与磁头一起安装有一个或多个测试部件。测试部件通过与读取元件相同或相似的制造工艺形成，但不包括测试引线之间的导电MR传感器。通过测量测试部件的电阻，可以在测试部件中识别寄生分流器的形成，这可以指示在读取元件中形成寄生分流。因此，可以确定在磁头中形成读取元件的制造工艺的质量。

8. 发明授权

US07855553B2 Test components fabricated with large area sensors used for determining the resistance of an MR sensor 有权
标题翻译：用大面积传感器制造的测试部件用于确定MR传感器的电阻
公开(公告)号：US07855553B2
公开(公告)日：2010-12-21
申请号：US11965587
申请日：2007-12-27
申请人： Robert S. Beach , Mary K. Gutberlet , David J. Seagle
发明人： Robert S. Beach , Mary K. Gutberlet , David J. Seagle
IPC分类号： G01R33/12
CPC分类号： G11B20/1816 , G11B5/3166 , G11B5/3173 , G11B5/3193 , G11B5/3903 , G11B2220/2516
摘要： Test methods and components are disclosed for testing resistances of magnetoresistance (MR) sensors in read elements. Test components are fabricated on a wafer with a first test lead, a test MR sensor, and a second test lead. The test leads and test MR sensor are fabricated with similar processes as first shields, MR sensors, and second shields of read elements on tie wafer. However, the test MR sensor is fabricated with an area that is larger than areas of the MR sensors in the read elements. The larger area of the test MR sensor causes the resistance of the test MR sensor to be insignificant compared to the lead resistance. Thus, a resistance measurement of the test component represents the lead resistance of a read element. An accurate resistance measurement of an MR sensor in a read element may then be determined by subtracting the lead resistance.
摘要翻译：公开了用于测试读取元件中的磁阻（MR）传感器的电阻的测试方法和组件。在具有第一测试导线，测试MR传感器和第二测试导线的晶片上制造测试部件。测试引线和测试MR传感器采用与晶片上的读取元件的第一屏蔽，MR传感器和第二屏蔽类似的工艺制造。然而，测试MR传感器的制造面积大于读取元件中MR传感器的面积。测试MR传感器的较大面积导致测试MR传感器的电阻与引线电阻相比不显着。因此，测试部件的电阻测量表示读取元件的引线电阻。然后可以通过减去引线电阻来确定读取元件中的MR传感器的精确电阻测量。

9. 发明授权

US07564110B2 Electrical lapping guides made from tunneling magnetoresistive (TMR) material 失效
标题翻译：由隧道磁阻（TMR）材料制成的电气研磨导轨
公开(公告)号：US07564110B2
公开(公告)日：2009-07-21
申请号：US11379321
申请日：2006-04-19
申请人： Robert S. Beach , Daniele Mauri , David J. Seagle , Jila Tabib
发明人： Robert S. Beach , Daniele Mauri , David J. Seagle , Jila Tabib
IPC分类号： H01L29/82
CPC分类号： G11B5/3173 , B82Y10/00 , B82Y25/00 , G11B5/3169 , G11B5/3906 , G11B5/3909 , H01L43/12
摘要： Tunneling magnetoresistive (TMR) electrical lapping guides (ELG) are disclosed for use in wafer fabrication of magnetic sensing devices, such as magnetic recording heads using TMR read elements. A TMR ELG includes a TMR stack comprising a first conductive layer, a barrier layer, and a second conductive layer of TMR material. The TMR ELG also includes a first lead and a second lead that connect to conductive pads used for applying a sense current to the TMR ELG in a current in plane (CIP) fashion. The first lead contacts one side of the TMR stack so that the first lead contacts both the first conductive layer and the second conductive layer of the TMR stack. The second lead contacts the other side of the TMR stack so that the second lead contacts both the first conductive layer and the second conductive layer of the TMR stack.
摘要翻译：公开了隧道磁阻（TMR）电研磨引导件（ELG），用于磁感测装置的晶片制造，例如使用TMR读取元件的磁记录头。 TMR ELG包括TMR堆叠，其包括第一导电层，阻挡层和TMR材料的第二导电层。 TMR ELG还包括连接到用于以当前平面（CIP）方式向TMR ELG施加感测电流的导电焊盘的第一引线和第二引线。第一引线接触TMR堆叠的一侧，使得第一引线接触TMR堆叠的第一导电层和第二导电层。第二引线接触TMR堆叠的另一侧，使得第二引线接触TMR堆叠的第一导电层和第二导电层。

10. 发明申请

US20090168268A1 Dedicated noncorrosive smear detector 有权
标题翻译：专用非腐蚀性涂片检测仪
公开(公告)号：US20090168268A1
公开(公告)日：2009-07-02
申请号：US12006296
申请日：2007-12-31
申请人： David P. Druist , David J. Seagle , Jila Tabib
发明人： David P. Druist , David J. Seagle , Jila Tabib
IPC分类号： G11B5/33
CPC分类号： G11B5/455 , B82Y10/00 , B82Y25/00 , G11B5/3169 , G11B5/3173 , G11B5/3909 , G11B2005/3996
摘要： A disk drive head slider for a magnetic disk drive is provided. The head slider includes a tunnel magnetic resistance device for reading data on a magnetic disk and a dedicated noncorrosive smear detector for measuring resistance wherein the resistance corresponds to a level of smear associated with the head slider.
摘要翻译：提供了用于磁盘驱动器的磁盘驱动器磁头滑块。磁头滑块包括用于读取磁盘上的数据的隧道磁阻装置和用于测量电阻的专用非腐蚀性涂片检测器，其中电阻对应于与磁头滑块相关联的拖尾水平。

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