公开(公告)号：US20080037180A1

公开(公告)日：2008-02-14

申请号：US11872652

申请日：2007-10-15

申请人： Thomas Boone, Jr. ,  Bruce Gurney ,  Ernesto Marinero ,  Neil Smith

发明人： Thomas Boone, Jr. ,  Bruce Gurney ,  Ernesto Marinero ,  Neil Smith

IPC分类号： G11B5/127

CPC分类号： G11C11/14 ,  B82Y25/00 ,  G01R33/093 ,  G01R33/095 ,  G11B5/3993 ,  G11B5/4853

摘要： An Extraordinary Magnetoresistive Sensor (EMR Sensor) having wide voltage lead tabs for reduced noise and increased signal to noise ratio. The leads can be formed in a triad structure, wherein a pair of voltage leads is located at either side of a current lead, or can be formed in a diad structure having a single voltage lead located at one side of a current lead.

摘要翻译： 具有宽电压引线接头的非凡磁阻传感器（EMR传感器）可降低噪音，增加信噪比。 引线可以形成为三电极结构，其中一对电压引线位于电流引线的任一侧，或者可以形成为具有位于电流引线一侧的单个电压引线的二元结构。

公开(公告)号：US20070036910A1

公开(公告)日：2007-02-15

申请号：US11584713

申请日：2006-10-19

申请人： Ernesto Marinero ,  Hermantha Wickramasinghe

发明人： Ernesto Marinero ,  Hermantha Wickramasinghe

IPC分类号： B05D3/06

CPC分类号： G11B5/127 ,  B82Y10/00 ,  B82Y25/00 ,  G11B5/656 ,  G11B5/7325 ,  G11B5/74 ,  G11B5/743 ,  G11B5/82 ,  G11B5/855 ,  G11B9/14 ,  G11B9/1409 ,  G11B9/1472 ,  G11B2005/0002 ,  G11B2005/0005 ,  G11B2005/0021

摘要： A method for patterning a recording medium selectively thermally couples a recording medium and a heat source to alter a chemical composition of the recording medium. An apparatus for patterning a recording medium has a heat source for generating and directing an incident thermal wave to a recording medium so as to alter a chemical composition of the recording medium, and a controller for coordinating a mutual position of the incident thermal wave and the recording medium for inducing a direct thermal coupling between the recording medium and the heat source.

摘要翻译： 图案化记录介质的方法选择性地热连接记录介质和热源以改变记录介质的化学成分。 用于图案化记录介质的装置具有用于产生并引导入射热波到记录介质以便改变记录介质的化学成分的热源，以及用于协调入射热波的相互位置和 用于引起记录介质和热源之间的直接热耦合的记录介质。

公开(公告)号：US20060193088A1

公开(公告)日：2006-08-31

申请号：US11069732

申请日：2005-02-28

申请人： Bruce Gurney ,  Ernesto Marinero

发明人： Bruce Gurney ,  Ernesto Marinero

IPC分类号： G11B5/33 ,  G11B5/127

CPC分类号： G11B5/397 ,  G11B5/3993 ,  G11B5/59655

摘要： An integrated servo and read device implementing Extraordinary Magnetoresistive (EMR) sensors. In one embodiment, dedicated EMR sensors are employed: one for data reading and one for servo operations. The sensors are preferably configured in an abutted configuration. In addition to magnetic recording systems, the device is also useful in a magnetic imaging device such as a scanning magnetometer. The integrated device may also be useful in other devices requiring a high sensitivity, high resolution sensor.

公开(公告)号：US20060152835A1

公开(公告)日：2006-07-13

申请号：US11036426

申请日：2005-01-13

申请人： Zvonimir Bandic ,  Ernesto Marinero

发明人： Zvonimir Bandic ,  Ernesto Marinero

IPC分类号： G11B5/86

CPC分类号： G11B5/865 ,  G11B5/82

摘要： A contact magnetic transfer (CMT) method for forming a magnetic pattern, such as the servo pattern on a magnetic recording disk, uses a master template with antiferromagnetically-coupled (AF-coupled) magnetic islands. The template is a rigid or flexible substrate with each magnetic island being two ferromagnetic films antiferromagnetically-coupled by an antiferromagnetically-coupling (AFC) film. In the presence of the applied magnetic field the magnetic moments of the two ferromagnetic films are parallel and substantially identical so they generate a magnetic field that cancels the applied field in the region of the slave disk facing the islands. However, when the applied field is removed, any residual magnetization results in the remanent moments in the two ferromagnetic films being oriented antiparallel as a result of the antiferromagnetic exchange coupling across the AFC film. Thus the islands have no net remanent magnetic moment that can affect the servo pattern transferred to the recording disk.

公开(公告)号：US20050180062A1

公开(公告)日：2005-08-18

申请号：US10782088

申请日：2004-02-18

申请人： Kuok Ho ,  Prakash Kasiraj ,  Ernesto Marinero ,  James Nix

发明人： Kuok Ho ,  Prakash Kasiraj ,  Ernesto Marinero ,  James Nix

IPC分类号： G11B5/127 ,  G11B5/33 ,  G11B5/39

CPC分类号： G11B5/3903

摘要： Magnetic data storage devices use read/write heads to transfer data between the magnetic storage medium and the rest of the system. The read head is constructed with a magnetic layer called a free layer whose magnetic axis rotates based upon external magnetic influences of the magnetic storage medium. The free layer is biased into a predetermined magnetic orientation with the magnetic influence of a layer called a hard bias layer. Orientation of magnetic axes within the hard bias layer is desired. This document describes a hard bias layer whose magnetization exhibits uniaxial magnetic anisotropy.

摘要翻译： 磁数据存储设备使用读/写头在磁存储介质和系统的其余部分之间传送数据。 读头由具有磁性层的磁性层构成，磁性层基于磁存储介质的外部磁影响而旋转。 自由层被称为硬偏压层的层的磁影响而被偏压成预定的磁性取向。 期望硬偏置层内的磁轴的取向。 该文献描述了一种硬偏磁层，其磁化表现出单轴磁各向异性。

公开(公告)号：US20080090106A1

公开(公告)日：2008-04-17

申请号：US11580648

申请日：2006-10-13

申请人： David Braunstein ,  Qing Dai ,  Yoshihiro Ikeda ,  Ernesto Marinero ,  Run-Han Wang

发明人： David Braunstein ,  Qing Dai ,  Yoshihiro Ikeda ,  Ernesto Marinero ,  Run-Han Wang

IPC分类号： G11B5/66

CPC分类号： G11B5/667

摘要： A perpendicular magnetic recording disk has a granular cobalt alloy recording layer (RL) containing on the “soft” magnetic underlayer (SUL). The SUL is doped with judiciously chosen elements or alloys or is capped or intercalated with said elements or metal alloy layers. The resulting disk and the SUL in particular has good recording properties, improved mechanical strength and improved corrosion resistance over a comparable disk without the doping or thin layers.

摘要翻译： 垂直磁记录盘具有包含在“软”磁性底层（SUL）上的颗粒状钴合金记录层（RL）。 SUL掺杂有明智选择的元素或合金，或者被封盖或嵌入所述元件或金属合金层。 所得到的盘和SUL特别具有良好的记录性能，改善的机械强度和在不具有掺杂或薄层的相当的盘上提高的耐腐蚀性。

公开(公告)号：US20060154112A1

公开(公告)日：2006-07-13

申请号：US11036503

申请日：2005-01-13

申请人： Zvonimir Bandic ,  Ernesto Marinero

发明人： Zvonimir Bandic ,  Ernesto Marinero

IPC分类号： G11B5/66 ,  G11B5/86

CPC分类号： G11B5/865 ,  G11B5/66 ,  G11B5/732

摘要： A contact magnetic transfer (CMT) master template with antiferromagnetically-coupled (AF-coupled) magnetic islands is used for transferring a magnetic pattern, such as a servo pattern, to a magnetic recording disk. The template is a rigid or flexible substrate with each magnetic island being two ferromagnetic films antiferromagnetically-coupled by an antiferromagnetically-coupling (AFC) film. In the presence of the applied magnetic field the magnetic moments of the two ferromagnetic films are parallel and substantially identical so they generate a magnetic field that cancels the applied field in the region of the slave disk facing the islands. However, when the applied field is removed, any residual magnetization results in the remanent moments in the two ferromagnetic films being oriented antiparallel as a result of the antiferromagnetic exchange coupling across the AFC film. Thus the islands have no net remanent magnetic moment that can affect the servo pattern transferred to the recording disk.

公开(公告)号：US07072156B2

公开(公告)日：2006-07-04

申请号：US10782628

申请日：2004-02-18

申请人： Marie-Claire Cyrille ,  Meng Ding ,  Kuok San Ho ,  Prakash Kasiraj ,  Ernesto Marinero ,  James Lamar Nix

发明人： Marie-Claire Cyrille ,  Meng Ding ,  Kuok San Ho ,  Prakash Kasiraj ,  Ernesto Marinero ,  James Lamar Nix

IPC分类号： G11B5/39

CPC分类号： G11B5/3903

摘要： A magnetic sensor is provided, having two bias layers separated by a decoupling layer to eliminate exchange coupling between the bias layers. The two bias layers may have differing coercivities, such that the biases provided by the bias layers to the free layer are independently adjustable. The grain structures of the two bias layers may be substantially decorrelated by the decoupling layer.

摘要翻译： 提供了一种磁传感器，其具有由解耦层隔开的两个偏置层，以消除偏置层之间的交换耦合。 两个偏置层可以具有不同的矫顽力，使得由偏置层提供给自由层的偏压是独立可调的。 两个偏置层的晶粒结构可以通过去耦层基本上去相关。

公开(公告)号：US20060018054A1

公开(公告)日：2006-01-26

申请号：US10897454

申请日：2004-07-22

申请人： Amitava Chattopadhyay ,  Robert Fontana ,  Bruce Gurney ,  Stefan Maat ,  Ernesto Marinero

发明人： Amitava Chattopadhyay ,  Robert Fontana ,  Bruce Gurney ,  Stefan Maat ,  Ernesto Marinero

IPC分类号： G11B5/127 ,  G11B5/33

CPC分类号： G11C11/14 ,  B82Y25/00 ,  G01R33/093 ,  G01R33/095 ,  G11B5/3993 ,  G11B5/4853

摘要： An extraordinary magnetoresistive sensor having optimal magnetic sensitivity capable of reading a very narrow and short magnetic bit. The sensor includes a layer of semiconductor layer and a layer of electrically conductive material. The first and second leads are electrically connected with an edge of the semiconductor material, one of the leads being located a distance inward from an end of the sensor. The sensor also includes first and second voltage leads, located on either side of and close to one of the current leads.

摘要翻译： 具有最佳磁敏感度的非凡磁阻传感器，能够读取非常窄和短的磁头。 传感器包括一层半导体层和一层导电材料。 第一和第二引线与半导体材料的边缘电连接，其中一个引线位于与传感器的端部相距一定距离处。 该传感器还包括第一和第二电压引线，位于电流引线之一的两侧。

公开(公告)号：US20070201160A1

公开(公告)日：2007-08-30

申请号：US11508538

申请日：2006-08-22

申请人： Thomas Albrecht ,  Bruce Gurney ,  Ernesto Marinero

发明人： Thomas Albrecht ,  Bruce Gurney ,  Ernesto Marinero

IPC分类号： G11B21/02

CPC分类号： G11B5/59655 ,  G11B5/3948 ,  G11B5/397 ,  G11B5/4886

摘要： A system method and apparatus for determining a position error signal (PES) for servo tracking in a data recording system using a data track. The PES is determined using a sensor array that includes a plurality of sensors offset from one another by certain predetermined distances in a direction perpendicular to the track direction. Correlation functions can be determined for pairs of sensors in the sensor array based on the signals read by the sensors. The results of these correlation functions can then be used to determine a PES by using a look up table or computational processor.

摘要翻译： 一种用于在使用数据轨道的数据记录系统中确定用于伺服跟踪的位置误差信号（PES）的系统方法和装置。 使用包括多个传感器的传感器阵列来确定PES，所述传感器阵列在垂直于轨道方向的方向上彼此偏移了特定的预定距离。 可以基于传感器读取的信号，确定传感器阵列中的传感器对的相关函数。 这些相关函数的结果然后可以用于通过使用查询表或计算处理器来确定PES。