公开(公告)号：US5768055A

公开(公告)日：1998-06-16

申请号：US716040

申请日：1996-09-19

申请人： Hong Tian ,  Hao Qing Pan ,  Po-Kang Wang ,  Takehiro Kamigama ,  Cheng-Teh Wu ,  Tommy Chan

发明人： Hong Tian ,  Hao Qing Pan ,  Po-Kang Wang ,  Takehiro Kamigama ,  Cheng-Teh Wu ,  Tommy Chan

IPC分类号： G11B21/21 ,  G11B5/187 ,  G11B5/40 ,  G11B5/60 ,  G11B19/04

CPC分类号： G11B5/6005 ,  G11B5/6082 ,  G11B19/04 ,  G11B5/40 ,  Y10S977/724

摘要： A magnetic head is described for use in a disk drive having a disk that is rotated during operation of the disk drive and stationary when the disk drive is non-operational. The disk includes a surface containing data tracks. The magnetic head compromises a slider including a forward edge, a trailing edge and an air bearing surface. A read/write transducer is mounted at the trailing edge of the slider. The slider and transducer are mounted within the disk drive, relative to the surface of the rotating disk, to fly above the surface of the disk during rotation of the disk, for reading and writing data from and to the data tracks, and to come to rest on the surface of the disk during non-operation of the disk drive. An array of overcoat protrusions is formed on and spaced across the slider to cover a predetermined and discrete area of the slider in a manner so that when the slider and transducer come to rest on the surface of the disk, contact with the surface of the disk occurs only at the array of overcoat protrusions.

摘要翻译： 描述了一种用于具有在盘驱动器的操作期间旋转的盘的磁盘驱动器的磁头，并且当磁盘驱动器不可操作时磁头是静止的。 磁盘包括一个包含数据磁道的表面。 磁头损害包括前边缘，后缘和空气轴承表面的滑块。 读/写换能器安装在滑块的后缘。 滑块和换能器相对于旋转盘的表面安装在磁盘驱动器内，以在盘的旋转期间在盘的表面上方飞行，用于从数据轨道读取数据并向数据轨道写入数据，并且到达 在磁盘驱动器的非操作期间，放在磁盘的表面上。 一个覆盖层突起的阵列形成在滑块上并在其间隔开以覆盖滑块的预定和离散的区域，使得当滑块和换能器停在盘的表面上时，与盘的表面接触 仅发生在外罩突起阵列上。

公开(公告)号：US20100191896A1

公开(公告)日：2010-07-29

申请号：US12321663

申请日：2009-01-23

申请人： Hsu Kai Yang ,  Po-Kang Wang ,  Takuma Murai ,  Takehiro Kamigama

发明人： Hsu Kai Yang ,  Po-Kang Wang ,  Takuma Murai ,  Takehiro Kamigama

IPC分类号： G06F12/02 ,  G06F12/00 ,  G06F12/08

CPC分类号： G06F12/0246 ,  G06F12/0873 ,  G06F2212/214 ,  G06F2212/7201 ,  G06F2212/7203

摘要： Systems and methods for a SSD controller enabling data transfer between a host and flash memories have been achieved. A major component of the SSD controller is a non-volatile buffer memory, which interfaces fast disk drive protocols and slow write and read cycles of NAND flash. Preferably MRAM or Phase Change RAM can be used for the buffer memory. Non-volatile tables can also be implemented for storing dynamic logical to physical address translation, defective sector information and their spare sectors and/or SSD configuration parameters. data are kept in a buffer memory when the buffer memory is not powered

摘要翻译： SSD控制器的系统和方法实现了主机和闪速存储器之间的数据传输。 SSD控制器的一个主要组成部分是非易失性缓冲存储器，它接口快速磁盘驱动器协议和NAND闪存的缓慢写入和读取周期。 优选地，MRAM或相变RAM可用于缓冲存储器。 还可以实现非易失性表，用于存储动态逻辑到物理地址转换，缺陷扇区信息及其备用扇区和/或SSD配置参数。 当缓冲存储器未通电时，数据保存在缓冲存储器中

公开(公告)号：US07391594B2

公开(公告)日：2008-06-24

申请号：US11447174

申请日：2006-06-06

申请人： Yen Fu ,  Ellis Cha ,  Po-Kang Wang ,  Hong Tian ,  Manuel Hernandez ,  Yaw-Shing Tang ,  Ben Hu

发明人： Yen Fu ,  Ellis Cha ,  Po-Kang Wang ,  Hong Tian ,  Manuel Hernandez ,  Yaw-Shing Tang ,  Ben Hu

IPC分类号： G11B5/60

CPC分类号： H05K3/3442 ,  B24B37/00 ,  B24D18/00 ,  G11B5/4853 ,  H05K1/0215 ,  H05K2201/10727 ,  Y02P70/613

摘要： Apparatus are presented for electrically coupling a slider to ground. In one embodiment, a bonding pad is provided on a side of the slider body separate from the bonding pad(s) used for read/write signals. This separate bonding pad is electrically coupled within the slider body to components that are to be coupled to ground. A separate conductor provided on the suspension (e.g., a trace, a flex circuit, etc.) may be electrically coupled to the separate bonding pad via gold ball bonding. The conductor is also coupled to ground in the hard-disk drive device (e.g., via the preamplifier). The use of the separated bonding pad and trace may negate the need to use a conductive adhesive to electrically ground the slider via its attachment to the tongue of a slider.

摘要翻译： 呈现用于将滑块电耦合到地面的装置。 在一个实施例中，接合焊盘设置在与用于读/写信号的接合焊盘分开的滑块体的一侧上。 该单独的接合焊盘在滑块体内电耦合到要耦合到地面的部件。 设置在悬架上的单独的导体（例如，迹线，柔性电路等）可以通过金球接合电耦合到单独的接合焊盘。 导体也耦合到硬盘驱动装置中的接地（例如，经由前置放大器）。 使用分离的接合焊盘和迹线可能会使得不需要使用导电粘合剂来将滑块经由其附接件电连接到滑块的舌部。

公开(公告)号：US20060227461A1

公开(公告)日：2006-10-12

申请号：US11447174

申请日：2006-06-06

申请人： Yen Fu ,  Ellis Cha ,  Po-Kang Wang ,  Hong Tian ,  Manuel Hernandez ,  Yaw-Shing Tang ,  Ben Hu

发明人： Yen Fu ,  Ellis Cha ,  Po-Kang Wang ,  Hong Tian ,  Manuel Hernandez ,  Yaw-Shing Tang ,  Ben Hu

IPC分类号： G11B5/60

CPC分类号： H05K3/3442 ,  B24B37/00 ,  B24D18/00 ,  G11B5/4853 ,  H05K1/0215 ,  H05K2201/10727 ,  Y02P70/613

摘要： Method and apparatus are presented for electrically coupling a slider to ground. In one embodiment, a bonding pad is provided on a side of the slider body separate from the bonding pad(s) used for read/write signals. This separate bonding pad is electrically coupled within the slider body to components that are to be coupled to ground. A separate conductor provided on the suspension (e.g., a trace, a flex circuit, etc.) may be electrically coupled to the separate bonding pad via gold ball bonding. The conductor is also coupled to ground in the hard-disk drive device (e.g., via the preamplifier). The use of the separated bonding pad and trace may negate the need to use a conductive adhesive to electrically ground the slider via its attachment to the tongue of a slider.

公开(公告)号：US08045295B2

公开(公告)日：2011-10-25

申请号：US12145464

申请日：2008-06-24

申请人： Yen Fu ,  Ellis T. Cha ,  Po-Kang Wang ,  Hong Tian ,  Manuel Hernandez ,  Yaw-Shing Tang ,  Ben Hu

发明人： Yen Fu ,  Ellis T. Cha ,  Po-Kang Wang ,  Hong Tian ,  Manuel Hernandez ,  Yaw-Shing Tang ,  Ben Hu

IPC分类号： G11B5/55

CPC分类号： H05K3/3442 ,  B24B37/00 ,  B24D18/00 ,  G11B5/4853 ,  H05K1/0215 ,  H05K2201/10727 ,  Y02P70/613

摘要： Method and apparatus are presented for electrically coupling a slider to ground. In one embodiment, a bonding pad is provided on a side of the slider body separate from the bonding pad(s) used for read/write signals. This separate bonding pad is electrically coupled within the slider body to components that are to be coupled to ground. A separate conductor provided on the suspension (e.g., a trace, a flex circuit, etc.) may be electrically coupled to the separate bonding pad via gold ball bonding. The conductor is also coupled to ground in the hard-disk drive device (e.g., via the preamplifier). The use of the separated bonding pad and trace may negate the need to use a conductive adhesive to electrically ground the slider via its attachment to the tongue of a slider.

摘要翻译： 呈现用于将滑块电耦合到地面的方法和装置。 在一个实施例中，接合焊盘设置在与用于读/写信号的接合焊盘分开的滑块体的一侧上。 该单独的接合焊盘在滑块体内电耦合到要耦合到地面的部件。 设置在悬架上的单独的导体（例如，迹线，柔性电路等）可以通过金球接合电耦合到单独的接合焊盘。 导体也耦合到硬盘驱动装置中的接地（例如，经由前置放大器）。 使用分离的接合焊盘和迹线可能会使得不需要使用导电粘合剂来将滑块经由其附接件电连接到滑块的舌部。

公开(公告)号：US07064928B2

公开(公告)日：2006-06-20

申请号：US10414233

申请日：2003-04-16

申请人： Yen Fu ,  Ellis Cha ,  Po-Kang Wang ,  Hong Tian ,  Manuel Hernandez ,  Yaw-Shing Tang ,  Ben Hu

发明人： Yen Fu ,  Ellis Cha ,  Po-Kang Wang ,  Hong Tian ,  Manuel Hernandez ,  Yaw-Shing Tang ,  Ben Hu

IPC分类号： G11B5/55 ,  G11B5/60

CPC分类号： H05K3/3442 ,  B24B37/00 ,  B24D18/00 ,  G11B5/4853 ,  H05K1/0215 ,  H05K2201/10727 ,  Y02P70/613

摘要： Method and apparatus are presented for electrically coupling a slider to ground. In one embodiment, a bonding pad is provided on a side of the slider body separate from the bonding pad(s) used for read/write signals. This separate bonding pad is electrically coupled within the slider body to components that are to be coupled to ground. A separate conductor provided on the suspension (e.g., a trace, a flex circuit, etc.) may be electrically coupled to the separate bonding pad via gold ball bonding. The conductor is also coupled to ground in the hard-disk drive device (e.g., via the preamplifier). The use of the separated bonding pad and trace may negate the need to use a conductive adhesive to electrically ground the slider via its attachment to the tongue of a slider.

摘要翻译： 呈现用于将滑块电耦合到地面的方法和装置。 在一个实施例中，接合焊盘设置在与用于读/写信号的接合焊盘分开的滑块体的一侧上。 该单独的接合焊盘在滑块体内电耦合到要耦合到地面的部件。 设置在悬架上的单独的导体（例如，迹线，柔性电路等）可以通过金球接合电耦合到单独的接合焊盘。 导体也耦合到硬盘驱动装置中的接地（例如，经由前置放大器）。 使用分离的接合焊盘和迹线可能会使得不需要使用导电粘合剂来将滑块经由其附接件电连接到滑块的舌部。

公开(公告)号：US08728825B2

公开(公告)日：2014-05-20

申请号：US13417398

申请日：2012-03-12

申请人： Po-Kang Wang ,  Xizeng Shi ,  Chyu-Jiuh Torng

发明人： Po-Kang Wang ,  Xizeng Shi ,  Chyu-Jiuh Torng

IPC分类号： G01N27/00

CPC分类号： G01R33/0052 ,  B82Y25/00 ,  G01N15/0656 ,  G01N27/745 ,  G01N2015/0065 ,  G01R33/05 ,  G01R33/093 ,  G01R33/098 ,  Y10T29/49124 ,  Y10T29/49986

摘要： A GMR sensor stripe provides a sensitive mechanism for detecting the presence of magnetized particles bonded to biological molecules that are affixed to a substrate. The adverse effect of hysteresis on the maintenance of a stable bias point for the magnetic moment of the sensor stripe free layer is eliminated by a combination of biasing the sensor stripe along its longitudinal direction rather than the usual transverse direction and by using the overcoat stress and magnetostriction of magnetic layers to create a compensatory transverse magnetic anisotropy. By connecting the stripes in an array and making the spaces between the stripes narrower than the dimension of the magnetized particle and by making the width of the stripes equal to the dimension of the particle, the sensitivity of the sensor array is enhanced.

摘要翻译： GMR传感器条带提供用于检测粘附到固定到基底上的生物分子的磁化颗粒的存在的敏感机制。 通过将传感器条沿其纵向而不是通常的横向方向偏置并通过使用外涂层应力和组合来消除滞后对传感器无条纹层的磁矩的稳定偏置点的维持的不利影响 磁层的磁致伸缩产生补偿横向磁各向异性。 通过将条纹连接在阵列中，使得条纹之间的空间比磁化粒子的尺寸窄，并且通过使条纹的宽度等于粒子的尺寸，增强了传感器阵列的灵敏度。

公开(公告)号：US08184399B2

公开(公告)日：2012-05-22

申请号：US12924416

申请日：2010-09-27

申请人： Yan Wu ,  Moris Dovek ,  Zhigang Bai ,  Cherng-Chyi Han ,  Jiun-Ting Lee ,  Po-Kang Wang

发明人： Yan Wu ,  Moris Dovek ,  Zhigang Bai ,  Cherng-Chyi Han ,  Jiun-Ting Lee ,  Po-Kang Wang

IPC分类号： G11B5/127

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

摘要： A perpendicular magnetic recording (PMR) head is fabricated with a tapered main pole having a variable thickness. The tapered portion of the pole is at the ABS tip and it can be formed by bevels at the leading or trailing edges or both. The taper terminates to form a region with a maximum thickness, t1, which extends for a certain distance proximally. Beyond this region of maximum thickness t1, the pole is then reduced to a constant minimum thickness t2. A yoke is attached to this region of constant minimum thickness. This pole design requires less flux because of the thinner region of the pole where it attaches to the yoke, but the thicker region just before the tapered ABS provides additional flux to drive the pole just before the ABS, so that high definition and field gain is achieved, yet fringing is significantly reduced.

摘要翻译： 制造具有可变厚度的锥形主极的垂直磁记录（PMR）头。 极的锥形部分在ABS尖端处，并且其可以由前缘或后缘处的斜面或两者形成。 锥形终止形成最大厚度的区域t1，其向近处延伸一定距离。 超过该最大厚度的区域t1，然后将极减小到恒定的最小厚度t2。 磁轭连接到恒定最小厚度的区域。 这个极设计需要更少的通量，因为它附着在磁轭上的磁极的较薄区域，而刚好在锥形ABS之前较厚的区域提供额外的磁通来驱动刚好在ABS之前的极点，因此高清晰度和场增益是 实现了，但边缘明显减少。

公开(公告)号：US20100232050A1

公开(公告)日：2010-09-16

申请号：US12381327

申请日：2009-03-11

申请人： Erhard Schreck ,  Kowang Liu ,  Kouji Shimazawa ,  Po-Kang Wang

发明人： Erhard Schreck ,  Kowang Liu ,  Kouji Shimazawa ,  Po-Kang Wang

IPC分类号： G11B5/02

CPC分类号： G11B5/314 ,  G11B5/6088 ,  G11B2005/001 ,  G11B2005/0021

摘要： A slider mounted TAMR (Thermal Assisted Magnetic Recording), DFH (Dynamic Flying Height) type read/write head using optical-laser generated surface plasmons in a small antenna to locally heat a magnetic medium, uses the same optical laser at low power to pre-heat the antenna. Maintaining the antenna at this pre-heated temperature, approximately 50% of its highest temperature during write operations, allows the DFH mechanism sufficient time to compensate for the thermal protrusion of the antenna at that lower temperature, so that thermal protrusion transients are significantly reduced when a writing operation occurs and full laser power is applied. The time constant for antenna protrusion is less than the time constant for DFH fly height compensation, so, without pre-heating, the thermal protrusion of the antenna due to absorption of optical radiation cannot be compensated by the DFH effect.

摘要翻译： 使用在小天线中使用光学激光产生的表面等离子体激光器来局部加热磁介质的TAMR（热辅助磁记录），DFH（动态飞行高度）型读/写头的滑块，以低功率使用相同的光学激光器 - 加热天线。 将天线维持在该预热温度下，在写入操作期间其最高温度的约50％允许DFH机构有足够的时间来补偿在该较低温度下的天线的热突起，使得热突起瞬变显着降低 发生写入操作并施加全激光功率。 天线突起的时间常数小于DFH飞行高度补偿的时间常数，因此，在没有预热的情况下，由于吸收光辐射而导致的天线热突起不能被DFH效应补偿。

公开(公告)号：US20100178715A1

公开(公告)日：2010-07-15

申请号：US12661365

申请日：2010-03-16

申请人： Po-Kang Wang ,  Yimin Guo ,  Cheng T. Horng ,  Tai Min ,  Ru-Ying Tong

发明人： Po-Kang Wang ,  Yimin Guo ,  Cheng T. Horng ,  Tai Min ,  Ru-Ying Tong

IPC分类号： H01L21/336 ,  H01L21/8246

CPC分类号： H01L43/08

摘要： An MRAM is disclosed that has a MTJ comprised of a ferromagnetic layer with a magnetization direction along a first axis, a super-paramagnetic (SP) free layer, and an insulating layer formed therebetween. The SP free layer has a remnant magnetization that is substantially zero in the absence of an external field, and in which magnetization is roughly proportional to an external field until reaching a saturation value. In one embodiment, a separate storage layer is formed above, below, or adjacent to the MTJ and has uniaxial anisotropy with a magnetization direction along its easy axis which parallels the first axis. In a second embodiment, the storage layer is formed on a non-magnetic conducting spacer layer within the MTJ and is patterned simultaneously with the MTJ. The SP free layer may be multiple layers or laminated layers of CoFeB. The storage layer may have a SyAP configuration and a laminated structure.