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21. 发明授权

US06349014B1 Magnetic read/write device with insulated coil layer recessed into pole 有权
标题翻译：具有绝缘线圈层的磁性读/写装置嵌入极
公开(公告)号：US06349014B1
公开(公告)日：2002-02-19
申请号：US09311939
申请日：1999-05-14
申请人： Billy W. Crue, Jr. , Renuka Apparao , Zhupei Shi , Ken Young , Mark Seymour
发明人： Billy W. Crue, Jr. , Renuka Apparao , Zhupei Shi , Ken Young , Mark Seymour
IPC分类号： G11B517
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3116 , G11B5/3123 , G11B5/313 , G11B5/3967 , G11B2005/3996
摘要： A write element for recording data on a magnetic medium includes a first pole and a second pole separated by a non-magnetic, electrically insulating write gap layer. In addition, a coil layer is recessed into the first pole and is electrically insulated from the first pole by a coil insulation layer, and form the second pole by a coil separation layer. The coil layer includes at least one coil turn, each of which are transversely separated from an adjacent coil turn by a coil turn divider. In some embodiments, the coil turn dividers are integral with and therefore formed of the same material as the first pole. The coil layer, first pole, and coil turn dividers are planarized before formation of the coil separation layer. Also, a second pole pedestal can be connected to the second pole at the air bearing surface, and separated from the first pole by the write gap layer. A highly heat conductive material can be disposed below the first pole as an undercoat. Such an undercoat can facilitate dispersion of heat that is generated by a current passing through the coil layer, away from other components of the write element. In addition, the write element can be formed in conjunction with a read element to form a read/write head. The read element can be formed above the write element, with the coil layer embedded in the first pole which is distal the read element.
摘要翻译：用于在磁介质上记录数据的写元件包括由非磁性，电绝缘的写间隙层分开的第一极和第二极。此外，线圈层凹陷到第一极中并且通过线圈绝缘层与第一极电绝缘，并且通过线圈分离层形成第二极。线圈层包括至少一个线圈匝，每个线圈匝由线圈岔分隔器与相邻线圈匝横向分离。在一些实施例中，线圈转弯分度器与由第一极构成的材料形成一体并因此形成。在形成线圈分离层之前，将线圈层，第一极和线圈分路器平坦化。此外，第二极基座可以在空气轴承表面处连接到第二极，并且通过写间隙层与第一极分离。高导热性材料可以设置在第一极下方作为底涂层。这样的底涂层可以促进由通过线圈层的电流而远离写入元件的其它部件产生的热分散。此外，写入元件可以与读取元件结合形成读/写头。读取元件可以形成在写入元件上方，其中线圈层嵌入到远离读取元件的第一极中。

22. 发明授权

US06330136B1 Magnetic read sensor with SDT tri-layer and method for making same 有权
标题翻译：具有SDT三层磁读取传感器及其制作方法
公开(公告)号：US06330136B1
公开(公告)日：2001-12-11
申请号：US09173472
申请日：1998-10-14
申请人： Lien-Chang Wang , Chih-Huang Lai , Tai Min , Zhupei Shi , Billy W. Crue, Jr.
发明人： Lien-Chang Wang , Chih-Huang Lai , Tai Min , Zhupei Shi , Billy W. Crue, Jr.
IPC分类号： G11B539
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3903 , G11B5/3909 , G11B5/3967 , G11B2005/3996
摘要： An Spin Dependent Tumelina SDT read sensor includes a first ferromagnetic (FM) layer and a second FM layer separated by an insulating layer. The first FM layer and second FM layer are substantially electrically isolated from each other. Specifically, the sidewalls of the SDT read sensor are substantially free of electrical paths between the first FM layer and the second FM layer. Also, a surface of the second FM layer that is substantially parallel to the air bearing surface, is recessed from the air bearing surface. A method for forming an SDT read sensor includes depositing a first FM material layer, depositing an intermediate insulation material layer over the first FM material layer, and then depositing a second FM material layer over the intermediate insulation material layer. The second FM material layer and the intermediate insulation material layer are etched, with the etching being stopped before the etching etches the first FM material layer.
摘要翻译：旋转依赖Tumelina SDT读取传感器包括由绝缘层分隔的第一铁磁（FM）层和第二FM层。第一FM层和第二FM层基本上彼此电隔离。具体地说，SDT读取传感器的侧壁基本上没有第一FM层和第二FM层之间的电路径。此外，基本上平行于空气轴承表面的第二FM层的表面从空气轴承表面凹陷。一种用于形成SDT读取传感器的方法包括沉积第一FM材料层，在第一FM材料层上沉积中间绝缘材料层，然后在中间绝缘材料层上沉积第二个FM材料层。蚀刻第二FM材料层和中间绝缘材料层，在刻蚀蚀刻第一FM材料层之前蚀刻停止。

23. 发明授权

US06317290B1 Advance pole trim writer with moment P1 and low apex angle 有权
标题翻译：提前极点修剪作者，力矩P1和低顶角
公开(公告)号：US06317290B1
公开(公告)日：2001-11-13
申请号：US09387619
申请日：1999-08-31
申请人： Lien-Chang Wang , Zhupei Shi , Syed Hossain , Billy W. Crue, Jr. , Song Pang
发明人： Lien-Chang Wang , Zhupei Shi , Syed Hossain , Billy W. Crue, Jr. , Song Pang
IPC分类号： G11B531
CPC分类号： G11B5/313 , G11B5/3116 , G11B5/3146 , G11B5/3967
摘要： A magnetoresistive head having improved overwrite performance and a small trackwidth. The magnetoresistive head having a magnetic yoke formed of first and second poles joined at a back gap region and having an opposite write gap region. A pedestal with a top portion constructed of a high saturation moment material is provided on the first pole, limited to the write gap region and spaced from the read element so as to prevent popcorn noise in read sensor. The high moment pedestal is raised above surrounding structure causing the second pole to define a very low apex angle in the write gap region.
摘要翻译：具有改进的重写性能和小轨道宽度的磁阻头。具有由第一和第二极形成的磁轭的磁阻磁头在后间隙区域连接并且具有相反的写入间隙区域。具有由高饱和力矩材料构成的顶部的基座设置在第一极上，限于写入间隙区域并与读取元件间隔开，以防止读取传感器中的爆米花噪声。高力矩基座在周围结构上方升高，导致第二极在写入间隙区域中限定非常低的顶角。

24. 发明授权

US06190764B1 Inductive write head for magnetic data storage media 失效
标题翻译：磁数据存储介质的感应写头
公开(公告)号：US06190764B1
公开(公告)日：2001-02-20
申请号：US09199252
申请日：1998-11-23
申请人： Zhupei Shi , Chun He , Syed Hossain , Mark S. Miller
发明人： Zhupei Shi , Chun He , Syed Hossain , Mark S. Miller
IPC分类号： G11B5265
CPC分类号： G11B5/3967 , G11B5/3109 , G11B5/3116 , Y10S428/90 , Y10T428/1186
摘要： An inductive write head includes a first pole and a second pole that form a yoke having a write gap between the first pole and second pole. The second pole is formed of a particular Co100-a-bZraCrb compound. More specifically, the second pole is formed where “a” is in the range of about 2 atomic percent to about 18 atomic percent, and “b” is in the range of about 0.5 atomic percent to about 6 atomic percent. The magnetic write element also includes a conductive coil which lies between the first pole and the second pole. The inductive write head also includes a first yoke pedestal attached to the first pole, and a second yoke pedestal attached to the second pole, with the write gap formed therebetween. Further, the first yoke pedestal has a pedestal width that defines the write element trackwidth and that is smaller than the pedestal width of the second yoke pedestal.
摘要翻译：感应写入头包括第一极和第二极，其形成在第一极和第二极之间具有写入间隙的磁轭。第二极由特定的Co100-a-bZraCrb化合物形成。更具体地说，形成第二极，其中“a”在约2原子％至约18原子百分比的范围内，“b”在约0.5原子％至约6原子百分比的范围内。磁写入元件还包括位于第一极和第二极之间的导电线圈。电感写入头还包括附接到第一极的第一磁轭座和连接到第二极的第二磁轭座，其间形成有写入间隙。此外，第一磁轭座具有限定写入元件轨道宽度并且小于第二磁轭座的基座宽度的基座宽度。

25. 发明授权

US06178070B1 Magnetic write head and method for making same 有权
标题翻译：磁写头及其制作方法
公开(公告)号：US06178070B1
公开(公告)日：2001-01-23
申请号：US09248572
申请日：1999-02-11
申请人： Liubo Hong , Zhupei Shi
发明人： Liubo Hong , Zhupei Shi
IPC分类号： G11B5147
CPC分类号： G11B5/3967 , G11B5/313
摘要： A magnetoresistive device for recording data includes a first pole connected to a second pole that is above the first pole. Above the first pole is a first conductive coil imbedded in a first insulation material, with at least a portion of the first conductive layer disposed below all of the second pole. The first and second poles have a first and second pole tip portion, respectively, between which is defined a write gap. A first pole pedestal, connected to the first pole at the first pole tip portion, and a second pole pedestal, connected to the second pole at the second pole tip portion, can be located between the first and second poles. Also, additional conductive coils can be included above the first conductive coil.
摘要翻译：用于记录数据的磁阻装置包括连接到第一极上方的第二极的第一极。第一极上方是嵌入第一绝缘材料中的第一导电线圈，第一导电层的至少一部分设置在所有第二极下方。第一和第二极分别具有第一和第二极尖部分，其间限定有写入间隙。与第一极尖部分的第一极连接的第一极基座和与第二极尖部分处的第二极连接的第二极基座可以位于第一和第二极之间。此外，可以在第一导电线圈上方包括额外的导电线圈。

26. 发明授权

US07969675B2 Determination of the quality of an erase process for perpendicular magnetic recording disks 有权
标题翻译：确定垂直磁记录盘擦除过程的质量
公开(公告)号：US07969675B2
公开(公告)日：2011-06-28
申请号：US12266950
申请日：2008-11-07
申请人： Shanlin Duan , Zhupei Shi , Jane Jie Zhang , Kezhao Zhang
发明人： Shanlin Duan , Zhupei Shi , Jane Jie Zhang , Kezhao Zhang
IPC分类号： G11B27/36 , G11B5/03
CPC分类号： G11B27/36 , G11B5/4555 , G11B19/048 , G11B20/1816 , G11B20/182 , G11B2220/2516
摘要： Methods and test systems are disclosed for determining the quality of an erase process for perpendicular magnetic recording (PMR) disks. After performing an erase process on a PMR disk and before the PMR disk is assembled into a hard disk drive, a first test pattern of magnetization pulses is written to a region of the PMR disk. A second test pattern is subsequently read from the region of the PMR disk. The second pattern of magnetization pulses is analyzed in relation to the first test pattern and measured to determine the quality of the erase process.
摘要翻译：公开了用于确定垂直磁记录（PMR）盘的擦除处理的质量的方法和测试系统。在PMR磁盘上执行擦除处理之后，在将PMR磁盘组装到硬盘驱动器之前，将磁化脉冲的第一测试图形写入PMR磁盘的区域。随后从PMR磁盘的区域读取第二测试模式。相对于第一测试图案分析磁化脉冲的第二图案，并测量以确定擦除过程的质量。

27. 发明申请

US20070024276A1 SYSTEM, METHOD, AND APPARATUS FOR DETECTING SIGNAL-TO-NOISE RATIO DECAY IN PERPENDICULAR MAGNETIC RECORDING 失效
标题翻译：用于检测磁通记录中的信号噪声比率衰减的系统，方法和装置
公开(公告)号：US20070024276A1
公开(公告)日：2007-02-01
申请号：US11189594
申请日：2005-07-26
申请人： Shanlin Duan , Jizhong He , Zhupei Shi , Jane Zhang
发明人： Shanlin Duan , Jizhong He , Zhupei Shi , Jane Zhang
IPC分类号： G01R33/12 , G01V3/00
CPC分类号： G01R33/1207 , G11B5/012 , G11B5/02 , G11B5/09 , G11B5/4555 , G11B2005/001 , G11B2005/0021
摘要： A magnetic test module runs on a spin stand to detect amplitude decay and noise evolution at the same time. Signal-to-noise ratio (SNR) decay is directly measured. The recording performance is correlated better with SNR instead of signal only. The thermal stability of the system is evaluated more accurately with this SNR decay method. A heater is placed under the media disk, and a remote sensing thermometer and temperature controller form a subsystem to set up desired environmental temperature. The heater creates a heated band and the read/write head flies above the heated band. The temperature control system may be removed when SNR decay measurement is performed under room temperature.
摘要翻译：磁性测试模块在旋转架上运行，以同时检测振幅衰减和噪声演变。直接测量信噪比（SNR）衰减。记录性能与SNR而不是仅信号相关性更好。采用这种SNR衰减方法，更准确地评估了系统的热稳定性。将加热器放置在介质盘下方，并且遥感温度计和温度控制器形成子系统以建立所需的环境温度。加热器产生加热带，读/写头飞过加热带。当在室温下进行SNR衰减测量时，可以去除温度控制系统。

28. 发明申请

US20060092538A1 System and method for determining whether defect in perpendicular recording disk drive is from thermal asperity or defect in magnetically soft underlayer 失效
标题翻译：用于确定垂直记录盘驱动器中的缺陷是否由磁性软底层的热凹凸或缺陷的系统和方法
公开(公告)号：US20060092538A1
公开(公告)日：2006-05-04
申请号：US10975259
申请日：2004-10-28
申请人： Zhupei Shi , Li Tang , Jane Zhang , Shanlin Duan
发明人： Zhupei Shi , Li Tang , Jane Zhang , Shanlin Duan
IPC分类号： G11B27/36 , G11B5/02
CPC分类号： G11B19/04 , G11B5/4555 , G11B20/1816
摘要： A method for determining whether a spike in a read back signal from a read head positioned over a perpendicular recording disk having a magnetically soft underlayer (SUL) is caused by a defect in the SUL or by a thermal asperity (TA). A first read back signal with the spike is obtained in the absence of a local magnetic field near the read head. Then, a permanent magnet or electromagnet is used to induce a small local magnetic field by the read head, and a second signal is obtained. If the signals are substantially similar, a thermal asperity is indicated. Otherwise a defect in the 13 magnetically soft underlayer of the disk is indicated.
摘要翻译：一种用于确定来自位于具有磁软底层（SUL）的垂直记录盘上的读头的回读信号中的尖峰是否由SUL中的缺陷或由热凹凸（TA）引起的方法。在读磁头附近没有局部磁场的情况下获得具有尖峰的第一回读信号。然后，使用永磁体或电磁体通过读取头来引起小的局部磁场，并获得第二信号。如果信号基本相似，则表示热不均匀性。否则表示磁盘的13个软磁性底层的缺陷。

29. 发明授权

US07027734B1 Dynamic multi-channel power equalizer and regulator 有权
标题翻译：动态多通道功率均衡器和调节器
公开(公告)号：US07027734B1
公开(公告)日：2006-04-11
申请号：US10132009
申请日：2002-04-25
申请人： Lin Wu , Zhupei Shi , Yuqiao Liu , Wei-Shin Tsay
发明人： Lin Wu , Zhupei Shi , Yuqiao Liu , Wei-Shin Tsay
IPC分类号： H04J14/02
CPC分类号： H04J14/0221
摘要： Optical devices and methods for regulating optical channel signals with specified wavelengths are disclosed. According to one aspect of the present invention, a number of variable optical apparatuses are employed. Each of the variable optical apparatuses includes a first and a second optical channel module, both configured at a wavelength λi. Each of the variable optical apparatuses further includes an optical regulator (i.e. a neutral density filter controlled by a stepper motor) coupled between the first and second optical channel modules. When signals with different wavelengths arrive, only the signal with the wavelength λi will transmit through the first optical channel module and the rest are reflected off. The transmitted signal is regulated (i.e. attenuated or strengthened) accordingly by the optical regulator before transmitting through the second optical channel module. Hence, the signals with different wavelengths can be respectively regulated by one of the variable optical apparatuses.
摘要翻译：公开了用于调节具有特定波长的光信道信号的光学装置和方法。根据本发明的一个方面，采用多个可变光学装置。每个可变光学设备包括第一和第二光学通道模块，两者都配置在波长λ1。每个可变光学装置还包括耦合在第一和第二光学信道模块之间的光学调节器（即由步进电机控制的中性密度滤波器）。当具有不同波长的信号到达时，只有具有波长λ1的信号将通过第一光通道模块传输，而其余的信号被反射。传输的信号在通过第二光通道模块传输之前相应地由光调节器调节（即衰减或加强）。因此，具有不同波长的信号可以分别由可变光学装置之一调节。

30. 发明授权

US06792183B1 Method for bonding aligned optical parts and apparatus thereof 有权
标题翻译：用于粘合对准的光学部件的方法及其装置
公开(公告)号：US06792183B1
公开(公告)日：2004-09-14
申请号：US09990487
申请日：2001-11-16
申请人： Yuqiao Liu , Li Wang , Zhupei Shi , Wei-Shin Tsay
发明人： Yuqiao Liu , Li Wang , Zhupei Shi , Wei-Shin Tsay
IPC分类号： G02B626
CPC分类号： G02B6/3636 , G02B6/3656 , G02B6/423 , G02B6/4231 , G02B6/4239
摘要： Techniques for bonding aligned optical parts to a substrate are disclosed. According to one embodiment, one or more wedges are used to fill in gaps between aligned optical parts and a substrate. Using an appropriate material, the wedges are respectively slid in till respective contacts between the aligned optical parts and the wedges are established, a small amount of a bonding agent is then only applied to the respect contacts. As a result, the shrinkage that may be caused by the bonding agent to destabilize the aligned optical parts is minimized and the alignments among the optical parts are preserved and can sustain under very high environmental stresses.
摘要翻译：公开了将对准的光学部件粘合到基底的技术。根据一个实施例，一个或多个楔用于填充对准的光学部件和基板之间的间隙。使用适当的材料，将楔子分别滑入直到对准的光学部件之间的相应触点，并且楔形物被建立，然后仅将少量的粘合剂施加到相关的触点。结果，可以使结合剂引起的使对准的光学部件不稳定的收缩被最小化，并且光学部件之间的对准被保持并且可以在非常高的环境应力下维持。

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