公开(公告)号：US20100214693A1

公开(公告)日：2010-08-26

申请号：US12391242

申请日：2009-02-23

Applicant: John Thomas Contreras ,  Yimin Hsu ,  Manfred Ernst Schabes ,  Xinzhi Xing

Inventor： John Thomas Contreras ,  Yimin Hsu ,  Manfred Ernst Schabes ,  Xinzhi Xing

IPC: G11B5/127

CPC classification number: G11B5/3123 ,  G11B5/02 ,  G11B5/1278 ,  G11B2005/0005

Abstract: A perpendicular magnetic recording system has a write head with a main perpendicular write pole connected to a yoke with first and second electrical coils. The first coil is wrapped around the yoke on one side of the main pole, and the second coil is wrapped around the yoke on the other side of the main pole. The first end of each coil is connected to a respective terminal. The second ends of the two coils are connected together and connected to a common terminal. A lead-time circuit is connected between the common terminal and the first end of one of the coils. Immediately after the direction of write current is switched by the write driver, the lead-time circuit causes the current in one of the coils to lead the current in the other coil. The current displacement between the two coils creates a precession of the magnetic flux reversal, thereby reducing the switching time of the write head.

Abstract translation: 垂直磁记录系统具有写头，其具有与第一和第二电线圈的轭连接的主垂直写极。 第一线圈缠绕在主极的一侧上的轭架上，并且第二线圈缠绕在主极的另一侧上的轭。 每个线圈的第一端连接到相应的端子。 两个线圈的第二端连接在一起并连接到公共端子。 在公共端子和一个线圈的第一端之间连接有引线时间电路。 在写入驱动器切换写入电流的方向之后，引线时间电路使一个线圈中的电流导致另一个线圈中的电流。 两个线圈之间的电流位移产生了磁通反转的进动，从而减小了写入头的切换时间。

公开(公告)号：US20060158783A1

公开(公告)日：2006-07-20

申请号：US11037752

申请日：2005-01-18

Applicant: Satya Arya ,  Xinzhi Xing

Inventor： Satya Arya ,  Xinzhi Xing

IPC: G11B5/48

CPC classification number: G11B5/4846 ,  G11B5/4853 ,  G11B5/486 ,  H05K1/0201 ,  H05K1/056 ,  H05K1/111 ,  H05K3/3494 ,  H05K2201/062 ,  H05K2201/0969 ,  Y02P70/611

Abstract: An apparatus and method for reducing heat absorption around solder pads on an electrical lead suspension (ELS). The method provides a base-metal layer having at least one opening. A dielectric layer is also provided above the base-metal layer, the dielectric layer covering a portion of the base-metal layer and at least one of the openings in the base-metal layer. A signal conductive layer is provided above dielectric layer. The signal conductive layer carries at least one solder pad portion, wherein the solder pad portion is placed above the portion of the dielectric layer such that the solder pad portion does not align with the at least one opening in the base-metal layer. In so doing, the heat absorption with respect to the base-metal layer is reduced.

Abstract translation: 一种用于减少电铅悬架（ELS）上的焊盘周围的吸热的装置和方法。 该方法提供具有至少一个开口的基底金属层。 电介质层也设置在母金属层的上方，电介质层覆盖基底金属层的一部分和基底金属层中的至少一个开口。 信号导电层设置在电介质层的上方。 信号导电层承载至少一个焊料焊盘部分，其中焊料焊盘部分放置在电介质层的部分上方，使得焊料焊盘部分不与基体金属层中的至少一个开口对准。 在这样做时，相对于基底金属层的吸热性降低。

公开(公告)号：US20060157441A1

公开(公告)日：2006-07-20

申请号：US11037755

申请日：2005-01-18

Applicant: Satya Arya ,  Xinzhi Xing

Inventor： Satya Arya ,  Xinzhi Xing

IPC: H01B13/00 ,  B44C1/22

CPC classification number: G11B5/4853

Abstract: An apparatus and method for reducing solder pad size and forming an opening in a base-metal layer of an electrical lead suspension. The method provides a base-metal layer having at least one opening. A dielectric layer is provided above the base-metal layer the dielectric layer covering a portion of the base-metal layer and at least one of the openings in the base-metal layer. A signal conductive layer is provided above dielectric layer. The signal conductive layer carries at least one solder pad portion, wherein the size of the solder pad portion and an amount of solder applied to the solder pad portion are reduced, the solder pad portion aligned above the dielectric layer covering at least one of the openings in the base-metal layer such that the solder pad to a ground capacitance is reduced thereby providing low signal reflection losses and a decrease in cross-talk.

Abstract translation: 一种用于减少焊盘尺寸并在电引线悬架的基底金属层中形成开口的装置和方法。 该方法提供具有至少一个开口的基底金属层。 介电层设置在母金属层的上方，介电层覆盖基底 - 金属层的一部分和基底 - 金属层中的至少一个开口。 信号导电层设置在电介质层的上方。 信号导电层承载至少一个焊盘部分，其中焊料焊盘部分的尺寸和施加到焊料焊盘部分的焊料的量减小，焊料焊盘部分对准介电层上方覆盖至少一个开口 在基底金属层中，使得焊盘到接地电容减小，从而提供低信号反射损耗和减少串扰。

公开(公告)号：US09570096B2

公开(公告)日：2017-02-14

申请号：US12851827

申请日：2010-08-06

Applicant: John Contreras ,  Tatemi Ido ,  Nobumasa Nishiyama ,  Xinzhi Xing

Inventor： John Contreras ,  Tatemi Ido ,  Nobumasa Nishiyama ,  Xinzhi Xing

IPC: G11B5/09 ,  G11B5/02 ,  G11B20/10

CPC classification number: G11B5/02 ,  G11B20/10018 ,  G11B2220/2516

Abstract: A method and apparatus is provided for extending a read bandwidth and increasing a high-frequency signal-to-noise ratio (SNR) of a front-end of a read path of a hard disk drive (HDD) by introducing a high impedance section at the front-end of the read path. The high impedance section may mitigate capacitive effects found at the front-end of the read path, thereby improving signal transfer by extending the read bandwidth.

Abstract translation: 提供一种方法和装置，用于通过将高阻抗部分引入到硬盘驱动器（HDD）的读取路径的前端来扩展读取带宽并增加高频信噪比（SNR） 读取路径的前端。 高阻抗部分可以减轻在读取路径前端发现的电容效应，从而通过扩展读取带宽来改善信号传输。

公开(公告)号：US08446690B2

公开(公告)日：2013-05-21

申请号：US12542677

申请日：2009-08-17

Applicant: Michael Alex ,  John Thomas Contreras ,  Manfred Ernst Schabes ,  Xinzhi Xing

Inventor： Michael Alex ,  John Thomas Contreras ,  Manfred Ernst Schabes ,  Xinzhi Xing

IPC: G11B5/17

CPC classification number: G11B5/314 ,  G11B5/02 ,  G11B5/1278 ,  G11B5/3146 ,  G11B2005/0005

Abstract: A perpendicular magnetic recording write head that a write pole, an electrically conductive coil coupled to the write pole for generating magnetic flux in the write pole in the presence of electrical write current, and a spin torque oscillator (STO) that injects auxiliary magnetic flux to the write pole in a direction generally orthogonal to the write pole to facilitate magnetization switching of the write pole. The STO comprises a stack of layers including electrodes, a pinned ferromagnetic layer having a fixed, a free ferromagnetic layer having a magnetization free to rotate, and a nonmagnetic spacer layer between the pinned and free layers. The free layer may be oriented either substantially orthogonal to the write pole or substantially parallel to the write pole, in which latter embodiment a flux guide may be located between the free layer and the write pole for directing the auxiliary magnetic flux from the free layer to the write pole.

Abstract translation: 垂直磁记录写头具有写极，耦合到写极的导电线圈，用于在存在写写电流的情况下在写极中产生磁通;以及自旋扭矩振荡器（STO），其将辅助磁通量注入到 写磁极在与写磁极大致垂直的方向上，以方便写磁极的磁化切换。 STO包括一叠层，包括电极，具有固定磁化的钉扎铁磁层，具有自由旋转的磁化的自由铁磁层和在被钉扎层和自由层之间的非磁性间隔层。 自由层可以取向为大致正交于写极或基本上平行于写极，其中后一实施例中的磁通引导件可以位于自由层和写极之间，用于将辅助磁通从自由层引导到 写柱。

公开(公告)号：US20110038080A1

公开(公告)日：2011-02-17

申请号：US12542677

申请日：2009-08-17

Applicant: Michael Alex ,  John Thomas Contreras ,  Manfred Ernst Schabes ,  Xinzhi Xing

Inventor： Michael Alex ,  John Thomas Contreras ,  Manfred Ernst Schabes ,  Xinzhi Xing

IPC: G11B5/17 ,  G11B5/127

CPC classification number: G11B5/314 ,  G11B5/02 ,  G11B5/1278 ,  G11B5/3146 ,  G11B2005/0005

Abstract: A perpendicular magnetic recording write head that a write pole, an electrically conductive coil coupled to the write pole for generating magnetic flux in the write pole in the presence of electrical write current, and a spin torque oscillator (STO) that injects auxiliary magnetic flux to the write pole in a direction generally orthogonal to the write pole to facilitate magnetization switching of the write pole. The STO comprises a stack of layers including electrodes, a pinned ferromagnetic layer having a fixed, a free ferromagnetic layer having a magnetization free to rotate, and a nonmagnetic spacer layer between the pinned and free layers. The free layer may be oriented either substantially orthogonal to the write pole or substantially parallel to the write pole, in which latter embodiment a flux guide may be located between the free layer and the write pole for directing the auxiliary magnetic flux from the free layer to the write pole.

Abstract translation: 垂直磁记录写头具有写极，耦合到写极的导电线圈，用于在存在写写电流的情况下在写极中产生磁通;以及自旋扭矩振荡器（STO），其将辅助磁通量注入到 写磁极在与写磁极大致垂直的方向上，以方便写磁极的磁化切换。 STO包括一叠层，包括电极，具有固定磁化的钉扎铁磁层，具有自由旋转的磁化的自由铁磁层和在被钉扎层和自由层之间的非磁性间隔层。 自由层可以取向为大致正交于写极或基本上平行于写极，其中后一实施例中的磁通引导件可以位于自由层和写极之间，用于将辅助磁通从自由层引导到 写柱。

公开(公告)号：US07450346B2

公开(公告)日：2008-11-11

申请号：US11037752

申请日：2005-01-18

Applicant: Satya Prakash Arya ,  Xinzhi Xing

Inventor： Satya Prakash Arya ,  Xinzhi Xing

IPC: G11B21/16 ,  G11B5/48

CPC classification number: G11B5/4846 ,  G11B5/4853 ,  G11B5/486 ,  H05K1/0201 ,  H05K1/056 ,  H05K1/111 ,  H05K3/3494 ,  H05K2201/062 ,  H05K2201/0969 ,  Y02P70/611

Abstract: An apparatus and method for reducing heat absorption around solder pads on an electrical lead suspension (ELS). The method provides a base-metal layer having at least one opening. A dielectric layer is also provided above the base-metal layer, the dielectric layer covering a portion of the base-metal layer and at least one of the openings in the base-metal layer. A signal conductive layer is provided above dielectric layer. The signal conductive layer carries at least one solder pad portion, wherein the solder pad portion is placed above the portion of the dielectric layer such that the solder pad portion does not align with the at least one opening in the base-metal layer. In so doing, the heat absorption with respect to the base-metal layer is reduced.

Abstract translation: 一种用于减少电铅悬架（ELS）上的焊盘周围的吸热的装置和方法。 该方法提供具有至少一个开口的基底金属层。 电介质层也设置在母金属层的上方，电介质层覆盖基底金属层的一部分和基底金属层中的至少一个开口。 信号导电层设置在电介质层的上方。 信号导电层承载至少一个焊料焊盘部分，其中焊料焊盘部分放置在电介质层的部分上方，使得焊料焊盘部分不与基体金属层中的至少一个开口对准。 在这样做时，相对于基底金属层的吸热性降低。

公开(公告)号：US20060158784A1

公开(公告)日：2006-07-20

申请号：US11037753

申请日：2005-01-18

Applicant: Satya Arya ,  Xinzhi Xing

Inventor： Satya Arya ,  Xinzhi Xing

IPC: G11B17/00

CPC classification number: G11B5/486 ,  G11B5/4846 ,  G11B5/4853 ,  H05K1/0224 ,  H05K1/025 ,  H05K1/056 ,  H05K1/111 ,  H05K2201/0792 ,  H05K2201/0969 ,  Y02P70/611

Abstract: An apparatus and method for extending a cover layer formation with respect to a solder pad portion on an electrical lead suspension (ELS). The method provides a base-metal layer for the ELS. A dielectric layer is also provided above the base-metal layer, the dielectric layer covering a portion of the base-metal layer. A signal conductive layer is provided above dielectric layer. The signal conductive layer carries at least one solder pad portion. A cover layer is also provided over the portions of the dielectric layer not having a solder pad portion thereon, the cover layer reducing the possibility of forming an unwanted electric bridge and reducing damage to the dielectric layer during a solder reflow process.

Abstract translation: 一种用于相对于电引线悬架（ELS）上的焊盘部分延伸覆盖层形成的装置和方法。 该方法为ELS提供了一个基础金属层。 介电层也设置在母金属层的上方，介电层覆盖基底金属层的一部分。 信号导电层设置在电介质层的上方。 信号导电层承载至少一个焊盘部分。 在绝缘层的不具有焊料焊盘部分的部分上还设有覆盖层，所述覆盖层减少了形成不需要的电桥的可能性，并减少了在回流焊过程中对电介质层的损坏。