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101. 发明授权

US07436620B1 Method for selecting an electrical power to be applied to a head-based flying height actuator 失效
标题翻译：用于选择要施加到基于头部飞行高度致动器的电力的方法
公开(公告)号：US07436620B1
公开(公告)日：2008-10-14
申请号：US11754896
申请日：2007-05-29
申请人： Soo-Choon Kang , Liwei Song
发明人： Soo-Choon Kang , Liwei Song
IPC分类号： G11B21/02
CPC分类号： G11B5/6005 , G11B5/6064 , G11B5/607
摘要： A novel method of selecting an electrical power, to be applied to a subject head-based flying height actuator during operation of a disk drive, is disclosed and claimed. A touch-down power for each of a plurality of representative heads is detected. A relationship between back-off power and touchdown power for the plurality of representative heads is estimated. A touch-down power for the subject head is detected. A back-off power for the subject head is calculated using the estimated relationship and the detected touch-down power for the subject head. The electrical power to be applied to the subject head-based flying height actuator is selected to be equal to the detected touch-down power for the subject head minus the calculated back-off power for the subject head.
摘要翻译：公开并要求保护一种在盘驱动器的操作期间选择施加到基于物体头部的飞行高度致动器的电力的新颖方法。检测到多个代表性头中的每一个的触发功率。估计多个代表性头部的退避功率和触地功率之间的关系。检测到被摄体头的触控电源。使用估计的关系和检测到的被摄体头的触下电功率来计算被摄体头的后退功率。被施加到被摄体头部的飞行高度致动器的电力被选择为等于被检测头的检测到的下降功率减去所计算的对象头的退避功率。

102. 发明授权

US07430098B1 Perpendicular magnetic recording head with dynamic flying height heating element 有权
标题翻译：具有动态飞行高度加热元件的垂直磁记录头
公开(公告)号：US07430098B1
公开(公告)日：2008-09-30
申请号：US11112112
申请日：2005-04-22
申请人： Suping Song , Kroum S. Stoev
发明人： Suping Song , Kroum S. Stoev
IPC分类号： G11B5/56 , G11B21/24 , G11B5/127
CPC分类号： G11B5/3133 , G11B5/1278 , G11B5/3967 , G11B5/6064 , G11B5/607
摘要： A magnetic head includes a slider having an air bearing surface (ABS) and a trailing surface, with a transducer fabricated on the trailing surface. The transducer includes an adjunct pole disposed in a first general plane, the adjunct pole having a front edge that is recessed from the ABS and a rear edge. A main pole of the transducer is formed adjacent the adjunct pole, the main pole having a write tip that extends approximately to the ABS. A write coil having a first layer of turns is disposed in a second general plane below the adjunct pole. The magnetic head further includes a heating element, a portion of the heating element being disposed in the first general plane behind the rear edge of the adjunct pole.
摘要翻译：磁头包括具有空气轴承表面（ABS）和后表面的滑块，其中在后表面上制造换能器。换能器包括设置在第一总平面中的辅助杆，附件杆具有从ABS凹陷的前边缘和后边缘。传感器的主极在附近的极柱附近形成，主极具有大致延伸到ABS的写入尖端。具有第一层匝的写入线圈设置在辅助极下方的第二通用平面中。磁头还包括加热元件，加热元件的一部分设置在辅助极的后边缘后面的第一总平面内。

103. 发明授权

US07386933B1 Method of fabricating thin film write heads with a shortened yoke and improved dimension control 失效
标题翻译：制造具有缩短磁轭的薄膜写入头和改进尺寸控制的方法
公开(公告)号：US07386933B1
公开(公告)日：2008-06-17
申请号：US11295243
申请日：2005-12-06
申请人： Mohamad T. Krounbi , Ming Zhao , Yining Hu , Jim Watterston
发明人： Mohamad T. Krounbi , Ming Zhao , Yining Hu , Jim Watterston
IPC分类号： G11B5/127 , H04R31/00
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3116 , G11B5/313 , G11B5/3163 , G11B5/3967 , G11B2005/3996 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： A method for fabricating a magnetic recording head writer. The writer includes a bottom magnetic pole and a write gap formed over the bottom pole and a coil trench formed in the bottom pole. A top magnetic pole is provided as two layers with the first layer including front and back tips with spaced apart walls positioned adjacent the trench bottom defining trench sides. A pole cover layer is included that is made up of a thin layer of insulating material deposited to cover sides and bottom of the coil trench. A bottom coil is formed on the pole cover layer in the bottom of the coil trench and coil insulation is provided between coil elements and adjacent trench walls and covemg the coil. A top coil with insulation is formed over the planarized bottom coil insulation and the top pole second layer is formed over the top coil.
摘要翻译：一种制造磁记录头写入器的方法。写入器包括形成在底极上的底部磁极和写入间隙以及形成在底部极中的线圈沟槽。顶部磁极设置为两层，其中第一层包括前部和后部末端，间隔开的壁定位在沟槽底部限定沟槽侧面附近。包括极覆盖层，其由沉积成覆盖线圈沟槽的侧面和底部的绝缘材料薄层构成。底线圈形成在线圈沟槽底部的极覆盖层上，线圈绝缘体设置在线圈元件与相邻的沟槽壁之间并且缠绕线圈。在平坦化的底部线圈绝缘体上形成具有绝缘的顶部线圈，并且顶部第二层形成在顶部线圈上。

104. 发明授权

US07375926B1 Inductive writer design using a soft magnetic pedestal having a high magnetic saturation layer 有权
标题翻译：使用具有高磁饱和层的软磁基座的感应写入器设计
公开(公告)号：US07375926B1
公开(公告)日：2008-05-20
申请号：US11779785
申请日：2007-07-18
申请人： Kroum S. Stoev , Francis H. Liu , Yugang Wang , Yingjian Chen
发明人： Kroum S. Stoev , Francis H. Liu , Yugang Wang , Yingjian Chen
IPC分类号： G11B5/187
CPC分类号： G11B5/1871 , G11B5/3116 , G11B5/3146 , G11B5/3967
摘要： A magnetic head for writing information on a relatively-moving medium includes a first substantially flat soft magnetic pole layer and a second substantially flat pole layer with at least one coil layer between them. The pole layers are magnetically coupled in a core region and spaced by more than one micron from one other. A soft magnetic pedestal adjoins the first pole layer adjacent to a medium-facing surface of the head, and a first high magnetic saturation layer adjoins the pedestal. A second high magnetic saturation layer adjoins the second pole layer. The first high magnetic saturation layer has a first throat height and the second high magnetic saturation layer extends from the medium-facing surface only to a second throat height. The first and second throat heights are within about one and one-half microns from the medium-facing surface and are essentially equal.
摘要翻译：用于在相对移动的介质上写入信息的磁头包括第一基本平坦的软磁极层和在它们之间具有至少一个线圈层的第二基本平坦的极性层。磁极层磁芯耦合在磁芯区域并彼此间隔超过一微米。软磁座与第一磁极层相邻，与磁头的介质表面相邻，第一高磁饱和层邻接基座。第二高磁饱和层邻接第二极层。第一高磁饱和层具有第一喉部高度，而第二高磁饱和层从介质中的表面延伸到第二喉部高度。第一和第二喉部高度距离面向介质的表面大约一个半微米，并且基本相等。

105. 发明授权

US07363697B1 Method for manufacturing a group of head gimbal assemblies 失效
标题翻译：制造一组头万向节组件的方法
公开(公告)号：US07363697B1
公开(公告)日：2008-04-29
申请号：US11060895
申请日：2005-02-18
申请人： Victor K. F. Dunn , Ciuter Chang
发明人： Victor K. F. Dunn , Ciuter Chang
IPC分类号： G11B5/127 , G11B5/55
CPC分类号： G11B5/455 , G11B5/127 , Y10T29/49021 , Y10T29/49023 , Y10T29/49025 , Y10T29/49027 , Y10T29/4903 , Y10T29/49036 , Y10T29/53165
摘要： A system and method for the production level screening of low flying magnetic heads in the manufacture of disk drive head disk assemblies (HDAs) is disclosed. A test disk is provided and has a plurality of bumps extending from at least one surface thereof. The test disk is rotated to fly a head of a head gimbal assembly selected from the group adjacent the surface of the test disk. An interaction of the head with one or more of the plurality of bumps may be sensed and the head gimbal assembly may be screened out from the group in response to the sensing of the interaction.
摘要翻译：公开了一种用于制造磁盘驱动器头盘组件（HDA）中的低飞行磁头的生产级别筛选的系统和方法。提供了测试盘，并且具有从其至少一个表面延伸的多个凸块。旋转测试盘以从邻近测试盘表面的组中选出头部万向架组件的头部。可以感测头部与多个凸起中的一个或多个的相互作用，并且响应于对相互作用的感测，可以从组中屏蔽头部万向节组件。

106. 再颁专利

USRE40203E1 Magnetic head suspension assembly fabricated with integral load beam and flexure 失效
标题翻译：磁头悬挂组件采用整体负载梁和弯曲制造
公开(公告)号：USRE40203E1
公开(公告)日：2008-04-01
申请号：US08662885
申请日：1996-06-13
申请人： Michael R. Hatch , Chak M. Leung
发明人： Michael R. Hatch , Chak M. Leung
IPC分类号： G11B5/48
CPC分类号： G11B5/4833
摘要： A magnetic head suspension assembly is fabricated with an integral piece which includes a load beam section, a flexure section, a rear mount section and a leaf spring section between the load beam and rear mount. A tongue extends from the load beam to the flexure and has a down-facing load dimple which contacts the non-air bearing surface of an attached air bearing slider. The flexure includes narrow thin legs adjacent to a cutout that delineates the load beam tongue. The head suspension is characterized by a high first bending mode frequency and low pitch and roll stiffness.
摘要翻译：制造磁头悬挂组件，其具有整体件，其包括负载梁部分，挠曲部分，后部安装部分和负载梁和后部安装件之间的板簧部分。舌头从负载梁延伸到挠曲件并且具有接触附接的空气轴承滑块的非空气支承表面的向下的负载凹坑。弯曲部分包括与描绘负载梁舌头的切口相邻的窄薄腿。头部悬挂的特征在于高的第一弯曲模式频率和低的俯仰和侧倾刚度。

107. 发明授权

US07296339B1 Method for manufacturing a perpendicular magnetic recording head 失效
标题翻译：垂直磁记录头的制造方法
公开(公告)号：US07296339B1
公开(公告)日：2007-11-20
申请号：US10936921
申请日：2004-09-08
申请人： Danning Yang , Yingjian Chen , Brant Nease , Kyusik Sin
发明人： Danning Yang , Yingjian Chen , Brant Nease , Kyusik Sin
IPC分类号： G11B5/127 , H04R31/00
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3163 , G11B5/3169 , Y10T29/49039 , Y10T29/49043 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： A method and system for manufacturing a perpendicular magnetic recording head is disclosed. The method and system include providing a chemical mechanical planarization (CMP) uniformity structure having an aperture therein and forming a perpendicular magnetic recording pole within the aperture. The CMP uniformity structure may include a CMP barrier layer. The method and system further include fabricating an insulator after formation of the perpendicular magnetic recording pole and performing a CMP to remove a portion of the insulator, expose a portion of the perpendicular magnetic recording pole and planarize an exposed surface of the perpendicular magnetic recording head.
摘要翻译：公开了用于制造垂直磁记录头的方法和系统。该方法和系统包括提供其中具有孔的化学机械平面化（CMP）均匀性结构，并在孔内形成垂直的磁记录极。 CMP均匀性结构可以包括CMP阻挡层。所述方法和系统还包括在形成垂直磁记录极之后制造绝缘体，并执行CMP以去除绝缘体的一部分，暴露垂直磁记录极的一部分并平面化垂直磁记录头的暴露表面。

108. 发明授权

US07283327B1 Magnetic write head having resistive heater coil 失效
标题翻译：具有电阻加热线圈的磁写头
公开(公告)号：US07283327B1
公开(公告)日：2007-10-16
申请号：US11451770
申请日：2006-06-13
申请人： Francis H. Liu , Kroum S. Stoev , Mohamad T. Krounbi
发明人： Francis H. Liu , Kroum S. Stoev , Mohamad T. Krounbi
IPC分类号： G11B5/17 , G11B5/56 , G11B21/02
CPC分类号： G11B5/60 , G11B5/6064
摘要： A magnetic write head includes a magnetic yoke having a first pole and a second pole. The first pole and the second pole each terminate at an air bearing surface. The first pole is magnetically coupled to the second pole in a backgap region. The magnetic write head further includes a electrically conductive write coil magnetically coupled to the magnetic yoke. The magnetic write head further includes a resistive heater coil having a first coil turn and a second coil turn. The heater coil is electrically isolated from the write coil. At least a portion of the first coil turn is between the first pole and the second pole and between the air bearing surface and the backgap region. At least a portion of the second coil turn is between the first pole and the second pole and between the air bearing surface and the backgap region. The portion of the first coil turn overlaps the portion of the second coil turn.
摘要翻译：磁写头包括具有第一极和第二极的磁轭。第一极和第二极各自终止于空气轴承表面。第一极在后隙区域磁耦合到第二极。磁写头还包括磁耦合到磁轭的导电写入线圈。磁写头还包括具有第一线圈匝和第二线圈匝的电阻加热器线圈。加热器线圈与写入线圈电隔离。第一线圈匝的至少一部分在第一极和第二极之间以及空气支承表面和后隙区之间。第二线圈匝的至少一部分在第一极和第二极之间以及空气支承表面和后隙区之间。第一线圈圈的部分与第二线圈匝的部分重叠。

109. 发明授权

US10242700B2 Magnetic reader having a nonmagnetic insertion layer for the pinning layer 有权
公开(公告)号：US10242700B2
公开(公告)日：2019-03-26
申请号：US15817543
申请日：2017-11-20
申请人： Western Digital (Fremont), LLC
发明人： Joshua Jones , Christian Kaiser , Yuankai Zheng , Qunwen Leng
IPC分类号： G11B5/39 , G11B5/31
摘要： A method and system provide a magnetic read apparatus. The magnetic read apparatus includes a read sensor. The read sensor includes a pinning layer, a nonmagnetic insertion layer and a pinned layer. The nonmagnetic insertion layer has a location selected from a first location and a second location. The first location is between the pinned layer and the pinning layer. The second location is within the pinning layer.

110. 发明授权

US10115419B2 Method for AFC shields for multiple sensor magnetic transducers and magnetic transducers having multiple sensors and AFC shields 有权
公开(公告)号：US10115419B2
公开(公告)日：2018-10-30
申请号：US15672857
申请日：2017-08-09
申请人： WESTERN DIGITAL (FREMONT), LLC
发明人： Rongfu Xiao , Shihai He , Daniele Mauri , Ming Mao , Shaoping Li
IPC分类号： G11B5/39 , G11B5/11 , G11B5/48 , C21D6/00 , C21D9/00 , G11B5/31
摘要： A method and system provide a magnetic transducer having an air-bearing surface (ABS). The method includes providing a first shield, a first read sensor, an antiferromagnetically coupled (AFC) shield that includes an antiferromagnet, a second read sensor and a second shield. The read sensors are between the first and second shields. The AFC shield is between the read sensors. An optional anneal for the first shield is in a magnetic field at a first angle from the ABS. Anneals for the first and second read sensors are in magnetic fields in desired first and second read sensor bias directions. The AFC shield anneal is in a magnetic field at a third angle from the ABS. The second shield anneal is in a magnetic field at a fifth angle from the ABS. The fifth angle is selected based on a thickness and a desired AFC shield bias direction for the antiferromagnet.

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