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1. 发明授权

US09659584B2 Dynamic flying height read/write head with off-track contact capability at touch down in hard disk drives 有权
公开(公告)号：US09659584B2
公开(公告)日：2017-05-23
申请号：US11717348
申请日：2007-03-13
申请人： Kowang Liu
发明人： Kowang Liu
IPC分类号： G11B5/40 , G11B5/455 , G11B5/60 , G11B5/31 , G11B5/127
CPC分类号： G11B5/3133 , G11B5/1278 , G11B5/6064 , G11B5/607 , G11B5/6076 , Y10T428/11
摘要： Dynamic fly height (DFH) control is obtained for a read/write head by use of a heating element having two laterally separated heat sources symmetrically spaced around the track center line of the head. The two heating sources create a protrusion profile relative to the undistorted ABS that recesses the read element and main write pole at the track center line relative to off-track positions. The resulting DFH control also protects the head from HDI (head-disk interference) events that are either the result of calibration procedures or normal HDD (hard disk drive) operation.

2. 发明申请

US20170032810A1 BOND PAD SHARING FOR POWERING A MULTIPLICITY OF ELECTRICAL COMPONENTS OF A RECORDING HEAD 有权
标题翻译：用于供电记录头的电气部件的多重性的BOND PAD SHARING
公开(公告)号：US20170032810A1
公开(公告)日：2017-02-02
申请号：US14812041
申请日：2015-07-29
申请人： Seagate Technology LLC
发明人： Declan Macken , Jason Bryce Gadbois , Timothy William Stoebe , Narayanan Ramakrishnan
IPC分类号： G11B5/60 , G11B5/012 , G11B7/125
CPC分类号： G11B5/6005 , G11B5/012 , G11B5/3106 , G11B5/314 , G11B5/4853 , G11B5/6064 , G11B5/607 , G11B5/6076 , G11B5/6088 , G11B2005/0021
摘要： An apparatus includes a slider of a recording head comprising a plurality of electrical bond pads coupled to bias sources and a ground pad. Each of a plurality of electrical components of the slider is coupled to at least one of the electrical bond pads. At least one of the electrical bond pads is a shared electrical bond pad coupled to at least two of the electrical components. At least one diode is coupled to at least one of the electrical bond pads and at least one of the electrical components.
摘要翻译：一种装置包括记录头的滑块，包括耦合到偏压源的多个电接合焊盘和接地垫。滑块的多个电气部件中的每一个耦合到至少一个电接合焊盘。电接合焊盘中的至少一个是耦合到电气部件中的至少两个的共用电接合焊盘。至少一个二极管耦合到至少一个电接合焊盘和至少一个电组件。

3. 发明授权

US09087530B2 Methods of manufacturing a transducer 有权
标题翻译：制造换能器的方法
公开(公告)号：US09087530B2
公开(公告)日：2015-07-21
申请号：US13537382
申请日：2012-06-29
申请人： Ladislav R. Pust , Lars H. Ahlen , Edwin F. Rejda , David C. Seets , Lance E. Stover , Dian Song , Feng Y. Wang
发明人： Ladislav R. Pust , Lars H. Ahlen , Edwin F. Rejda , David C. Seets , Lance E. Stover , Dian Song , Feng Y. Wang
IPC分类号： G11B5/127 , H04R31/00 , G11B5/31 , G11B5/40 , G11B5/60
CPC分类号： G11B5/3133 , G11B5/1278 , G11B5/3106 , G11B5/3136 , G11B5/3169 , G11B5/40 , G11B5/6064 , G11B5/6076 , Y10T29/49032 , Y10T428/1164
摘要： A transducer having an external contact surface includes a writer and a contact member. The writer has a portion extendable relative to an adjacent portion of the external contact surface. The contact member surrounds at least a portion of the extendable writer portion and is spaced from the extendable writer portion. The coefficient of thermal expansion of the contact member is approximately equal to the coefficient of thermal expansion of the extendable writer portion.
摘要翻译：具有外部接触表面的传感器包括写入器和接触构件。作者具有相对于外部接触表面的相邻部分可延伸的部分。接触构件围绕可延伸写入器部分的至少一部分并且与可延伸写入器部分间隔开。接触构件的热膨胀系数近似等于可延伸写入器部分的热膨胀系数。

4. 发明授权

US09058829B1 Multiple heaters independently controlling clearance of two or more read transducers 有权
标题翻译：多个加热器独立地控制两个或更多读取换能器的间隙
公开(公告)号：US09058829B1
公开(公告)日：2015-06-16
申请号：US14097435
申请日：2013-12-05
申请人： Seagate Technology LLC
发明人： John Wolf , Erik Hutchinson
IPC分类号： G11B21/02 , G11B5/127 , G11B5/60 , G11B5/31
CPC分类号： G11B5/607 , G11B5/3133 , G11B5/3951 , G11B5/4886 , G11B5/60 , G11B5/6005 , G11B5/6064
摘要： A apparatus includes first and second read transducers arranged on a media-facing surface. The read transducers detect magnetic fields of a recording medium. First and second heaters are disposed proximate the respective first and second read transducers. The first and second heaters independently control respective first and second protrusions of the first and second read transducers from the media-facing surface.
摘要翻译：一种装置包括布置在面向媒体的表面上的第一和第二读取换能器。读取换能器检测记录介质的磁场。第一和第二加热器设置在相应的第一和第二读取换能器附近。第一和第二加热器独立地从面向介质的表面控制第一和第二读取换能器的相应的第一和第二突起。

5. 发明授权

US08810962B2 Insertion under read shield for improved read gap actuation in dynamic flying height 有权
标题翻译：在读屏蔽下插入，以改善动态飞行高度的读取间隙驱动
公开(公告)号：US08810962B2
公开(公告)日：2014-08-19
申请号：US12455758
申请日：2009-06-05
申请人： Yan Wu , Kowang Liu
发明人： Yan Wu , Kowang Liu
IPC分类号： G11B5/10 , G11B5/31 , G11B5/60 , G11B5/127
CPC分类号： G11B5/3133 , G11B5/1278 , G11B5/3116 , G11B5/6005 , G11B5/6064 , Y10T428/1193
摘要： A read/write head is disclosed wherein a non-magnetic layer made of a metal is inserted in the read head on a side opposite to the S1 shield with respect to the sensor. The non-magnetic layer is preferably Cu and is recessed from the ABS to prevent corrosion. A preferred design has a 1 to 5 micron thick non-magnetic insertion layer that extends a distance of 3 to 100 microns along a plane that is perpendicular to the ABS. RG efficiency is enhanced significantly and RG gamma ratio is improved to 1.0 so that a smaller difference in RG, WG, and min-fly point can be achieved at touchdown detection and in normal read/write operations. These results lead to an optimal dynamic performance for a given spacing target and enhanced read gap protrusion at a given heater power. S1/S2A thickness can be independently optimized for magnetic performance consideration only.
摘要翻译：公开了一种读/写头，其中由金属制成的非磁性层相对于传感器插入到与S1屏蔽相反的一侧的读头中。非磁性层优选为Cu，并且从ABS凹入以防止腐蚀。优选的设计具有1至5微米厚的非磁性插入层，其沿垂直于ABS的平面延伸3至100微米的距离。 RG效率显着提高，RG伽马比提高到1.0，使得在触地检测和正常读/写操作中可以实现RG，WG和最小飞点之间的较小差异。这些结果导致给定间隔目标和给定加热器功率下增强的读取间隙突出的最佳动态性能。 S1 / S2A的厚度可以独立地优化磁性能考虑。

6. 发明授权

US08724263B2 Method for active control of spacing between a head and a storage medium 有权
标题翻译：用于主动控制头部和存储介质之间的间隔的方法
公开(公告)号：US08724263B2
公开(公告)日：2014-05-13
申请号：US13532143
申请日：2012-06-25
申请人： Erik J. Hutchinson , Daniel P. Burbank , Ladislay R. Pust
发明人： Erik J. Hutchinson , Daniel P. Burbank , Ladislay R. Pust
IPC分类号： G11B5/127
CPC分类号： G11B5/6005 , G11B5/3133 , G11B5/6064 , G11B5/607
摘要： A head using heaters or actuators to control head media spacing is disclosed. In embodiments disclosed the heaters are selectively energized to control a close point of the head for read and/or write operations. As disclosed power is supplied to multiple heaters to generate heat induced protrusion data and the heat induced protrusion data is used to apply power to the multiple heaters for head media spacing control.
摘要翻译：公开了一种使用加热器或致动器来控制头部介质间距的头部。在所公开的实施例中，加热器被选择性地通电以控制头部的接近点用于读取和/或写入操作。由于所公开的功率被提供给多个加热器以产生热引起的突出数据，并且热引起的突出数据用于向多个加热器施加电力以进行头部介质间隔控制。

7. 发明授权

US08553363B2 Air-bearing surface of head for minimizing contact with disk 有权
标题翻译：头部空气轴承表面用于尽量减少与盘的接触
公开(公告)号：US08553363B2
公开(公告)日：2013-10-08
申请号：US13080358
申请日：2011-04-05
申请人： Lee Dorius
发明人： Lee Dorius
IPC分类号： G11B5/60 , G11B15/64 , G11B17/32 , G11B21/20
CPC分类号： G11B5/6064
摘要： Approaches for a head slider for use within a hard-disk drive. The head slider comprises an air bearing surface (ABS) and an electromagnetic transducer disposed at an air outflow end of the air bearing surface. The air bearing surface comprises an inner (ID) side rail proximate the inner diameter side and an outer (OD) side rail proximate the outer diameter side. The ID side rail is longer in length than the OD side rail. The physical dimensions of the ID side rail have a geometry that reduces a contact force between the head and the magnetic-recording disk when the head experiences a positive roll static attitude (RSA). The physical dimensions of the OD side rail have a geometry that reduces contact force between the head and the magnetic-recording disk when the head experiences a negative RSA.
摘要翻译：硬盘驱动器中使用的磁头滑块的方法。磁头滑块包括空气轴承表面（ABS）和设置在空气轴承表面的空气流出端处的电磁换能器。空气轴承表面包括靠近内径侧的内部（ID）侧轨道和靠近外径侧的外部（OD）侧轨道。 ID侧轨的长度比OD侧轨长。 ID侧轨的物理尺寸具有几何形状，当头经历正辊静态（RSA）时，磁头与磁记录盘之间的接触力减小。 OD侧轨的物理尺寸具有减小头部和磁记录盘之间的接触力的几何形状，当头部经受负RSA时。

8. 发明授权

US08537488B2 Method for specifying control value for controlling clearance adjustment amount between head and disk, disk drive device and manufacturing method thereof 有权
标题翻译：用于指定用于控制磁头和磁盘之间的间隙调整量的控制值的方法，磁盘驱动装置及其制造方法
公开(公告)号：US08537488B2
公开(公告)日：2013-09-17
申请号：US12077365
申请日：2008-03-17
申请人： Yasunori Kawamoto , Minoru Shimada , Masahiro Etoh , Takuma Ito
发明人： Yasunori Kawamoto , Minoru Shimada , Masahiro Etoh , Takuma Ito
IPC分类号： G11B21/02 , G11B27/36 , G11B5/09 , G11B19/04
CPC分类号： G11B19/041 , G11B5/3133 , G11B5/40 , G11B5/6064 , G11B5/607
摘要： Embodiments of the present invention help to reduce damage of a head element portion or a magnetic disk in a procedure for specifying a heater power value for adjusting a clearance between the head element portion and the magnetic disk. In an embodiment of the present invention, an HDC/MPU sequentially performs data writing and reading while increasing heater power. The HDC/MPU further determines whether or not a head slider has retrieved the data properly. When the data cannot be retrieved properly, the HDC/MPU specifies a heater power value in a normal operation based on the heater power value at which the data could not be retrieved properly.
摘要翻译：本发明的实施例有助于在用于指定用于调节头元件部分和磁盘之间的间隙的加热器功率值的过程中减少头元件部分或磁盘的损坏。在本发明的实施例中，HDC / MPU在增加加热器功率的同时依次执行数据写入和读取。 HDC / MPU还确定磁头滑块是否正确地检索了数据。当数据无法正常检索时，HDC / MPU根据无法正确检索数据的加热器功率值，在正常操作中指定加热器功率值。

9. 发明申请

US20130176643A1 DISTRIBUTED TEMPERATURE DETECTOR ARCHITECTURE FOR HEAD DISK INTERFACE SYSTEMS 有权
标题翻译：头盘接口系统的分布式温度检测器架构
公开(公告)号：US20130176643A1
公开(公告)日：2013-07-11
申请号：US13333565
申请日：2011-12-21
申请人： John Thomas Contreras , Rehan Ahmed Zakai , Samir Y. Garzon
发明人： John Thomas Contreras , Rehan Ahmed Zakai , Samir Y. Garzon
IPC分类号： G11B5/60 , G11B5/48
CPC分类号： G11B5/6005 , G11B5/6064 , G11B5/607 , G11B5/6076
摘要： Approaches for a distributed temperature detector architecture in a head disk interface system of a hard-disk drive (HDD). A HDD may include a read/write head comprising a read element and a write element and a read/write integrated circuit (IC). The read/write head may comprise (a) a first temperature sensor that is located relatively near an air bearing surface (ABS) of the read/write head and (b) a second temperature sensor that is offset from the ABS. The read/write IC is configured to detect when the read/write head makes physical contact with a disk based on a difference in temperature measured by the first and second temperature sensor. The first and second temperature sensors form a bridge circuit, such as a Wheatstone bridge, with a first IC resistor and a second IC resistor that both reside in the read/write IC, allowing the temperature of the read/write head to be accurately measured.
摘要翻译：在硬盘驱动器（HDD）的磁头磁盘接口系统中的分布式温度检测器架构的方法。 HDD可以包括读/写头，读/写头包括读元件和写元件以及读/写集成电路（IC）。读/写头可以包括（a）第一温度传感器，其位于相对靠近读/写头的空气轴承表面（ABS）处，以及（b）与ABS偏移的第二温度传感器。读/写IC被配置为基于由第一和第二温度传感器测量的温度差来检测读/写头何时与盘物理接触。第一和第二温度传感器形成桥接电路，例如惠斯通电桥，具有位于读/写IC中的第一IC电阻器和第二IC电阻器，允许读/写头的温度被精确测量。

10. 发明授权

US08432636B2 Data storage heater systems with diodes 有权
标题翻译：带二极管的数据存储加热器系统
公开(公告)号：US08432636B2
公开(公告)日：2013-04-30
申请号：US13421507
申请日：2012-03-15
申请人： John L. Brand
发明人： John L. Brand
IPC分类号： G11B5/127
CPC分类号： G11B5/3133 , G11B5/6064 , Y10T29/49002
摘要： An aspect of the disclosure relates to data storage heater systems with diodes. In one embodiment, data storage systems include a first electrical connection point, a second electrical connection point, a first electrical branch, and a second electrical branch. The first electrical branch is connected to the first and the second electrical connection points. The first electrical branch has first and second diodes biased in a first direction. The second electrical branch is connected to the first and second electrical connection points. The second electrical branch has third and fourth diodes biased in a second direction.
摘要翻译：本公开的一个方面涉及具有二极管的数据存储加热器系统。在一个实施例中，数据存储系统包括第一电连接点，第二电连接点，第一电分支和第二电分支。第一电分支连接到第一和第二电连接点。第一电分支具有沿第一方向偏置的第一和第二二极管。第二电支路连接到第一和第二电连接点。第二电分支具有沿第二方向偏置的第三和第四二极管。

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