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85 条记录 (耗时 0.023 秒)

    Characterizing head parameters of a disk drive by evaluating track profile of an overwritten track
    11.
    发明授权
    Characterizing head parameters of a disk drive by evaluating track profile of an overwritten track 有权
    通过评估覆盖轨道的轨道轮廓来表征磁盘驱动器的磁头参数

    公开(公告)号：US08717695B1

    公开(公告)日：2014-05-06

    申请号：US13408921

    申请日：2012-02-29

    申请人： Enhao Lin ,  Shaoping Li

    发明人： Enhao Lin ,  Shaoping Li

    IPC分类号： G11B27/10

    CPC分类号： G11B5/455

    摘要： A disk drive is disclosed comprising a disk comprising a plurality of tracks, and a head actuated over the disk. The head is positioned over a track while writing a first frequency pattern substantially centered on the track at a first frequency. After writing the first frequency pattern, a second frequency pattern is written substantially centered on the track at a second frequency, wherein the second frequency pattern is written over the first frequency pattern. After writing the second frequency pattern over the first frequency pattern, the head is scanned across the track while reading the disk to generate a read signal. A first frequency component is extracted from the read signal representing the first frequency.

    摘要翻译： 公开了一种磁盘驱动器，包括包括多个轨道的盘，以及在盘上致动的头。 当以第一频率写入基本上以轨道为中心的第一频率图案时，头部位于轨道上方。 在写入第一频率模式之后，第二频率模式以第二频率基本上以轨道为中心写入，其中第二频率模式被写入第一频率模式。 在第一频率图案上写入第二频率图案之后，在读取磁盘的同时扫描磁头以产生读取信号。 从表示第一频率的读取信号中提取第一频率分量。

    Non-Volatile Memory Cell with Ferroelectric Layer Configurations
    15.
    发明申请
    Non-Volatile Memory Cell with Ferroelectric Layer Configurations 审中-公开
    具有铁电层配置的非易失性存储单元

    公开(公告)号：US20100135061A1

    公开(公告)日：2010-06-03

    申请号：US12326714

    申请日：2008-12-02

    申请人： Shaoping Li ,  Kaizhong Gao ,  Insik Jin ,  Song Xue ,  Haiwen Xi ,  Zheng Gao ,  Eileen Yan

    发明人： Shaoping Li ,  Kaizhong Gao ,  Insik Jin ,  Song Xue ,  Haiwen Xi ,  Zheng Gao ,  Eileen Yan

    IPC分类号： G11C11/22 ,  H01L29/68

    CPC分类号： G11C11/22 ,  H01L27/2463 ,  H01L45/04 ,  H01L45/1233 ,  H01L45/147

    摘要： In some embodiments of the invention a non-volatile memory cell is provided with a first electrode, a second electrode, and one or more side layers of a ferroelectric metal oxide and a ferroelectric material layer between the first and second electrodes. The ferroelectric material layer may be provided between, e.g., adjacent, two side layers of a ferroelectric metal oxide or between a single layer of a ferroelectric metal oxide and an electrode. The ferroelectric metal oxide may in some cases include a uniform layered structure such as a bismuth layer-structured ferroelectric material like Bi4Ti3O12. In some embodiments, the ferroelectric material layer is formed at least partially from PbZrxTi1-xO3. A non-volatile memory array including such memory cells is also provided.

    摘要翻译： 在本发明的一些实施例中，非易失性存储单元在第一和第二电极之间设置有第一电极，第二电极以及铁电金属氧化物和铁电材料层的一个或多个侧层。 铁电材料层可以设置在例如铁电金属氧化物的相邻的两个侧层之间或者设置在单层铁电金属氧化物和电极之间。 在一些情况下，铁电金属氧化物可以包括均匀的层状结构，例如诸如Bi 4 Ti 3 O 12的铋层结构的铁电材料。 在一些实施例中，铁电材料层至少部分地由PbZrxTi1-xO3形成。 还提供了包括这种存储单元的非易失性存储器阵列。

    High frequency field assisted write device
    16.
    发明授权
    High frequency field assisted write device 有权
    高频场辅助写装置

    公开(公告)号：US07724469B2

    公开(公告)日：2010-05-25

    申请号：US11634767

    申请日：2006-12-06

    申请人： Kaizhong Gao ,  Haiwen Xi ,  Yiming Shi ,  Sining Mao ,  Patrick J. Ryan ,  Song S. Xue ,  Shaoping Li

    发明人： Kaizhong Gao ,  Haiwen Xi ,  Yiming Shi ,  Sining Mao ,  Patrick J. Ryan ,  Song S. Xue ,  Shaoping Li

    IPC分类号： G11B5/127 ,  G11B5/187

    CPC分类号： G11B5/1278 ,  G11B2005/001

    摘要： A magnetic writer includes a write element and an oscillation device disposed adjacent to the write element. The first oscillation device includes a first magnetic layer, a second magnetic layer having a magnetization vector including a component perpendicular to a major plane of the first magnetic layer. The first nonmagnetic layer disposed between the first magnetic layer and the second magnetic layer. The first oscillation device generates a high-frequency oscillation field when a current is directed perpendicular to the major plane of the first magnetic layer.

    摘要翻译： 磁性写入器包括写入元件和邻近写入元件设置的振荡器件。 第一振荡装置包括第一磁性层，具有包括垂直于第一磁性层的主平面的分量的磁化矢量的第二磁性层。 设置在第一磁性层和第二磁性层之间的第一非磁性层。 当电流垂直于第一磁性层的主平面时，第一振荡装置产生高频振荡场。

    Differential/dual CPP recording head
    17.
    发明申请
    Differential/dual CPP recording head 失效
    差分/双CPP记录头

    公开(公告)号：US20060002032A1

    公开(公告)日：2006-01-05

    申请号：US10880879

    申请日：2004-06-30

    申请人： Shaoping Li ,  Song Xue ,  Kaizhong Gao ,  Patrick Ryan

    发明人： Shaoping Li ,  Song Xue ,  Kaizhong Gao ,  Patrick Ryan

    IPC分类号： G11B5/33 ,  G11B5/127

    CPC分类号： G11B5/265 ,  G11B5/127 ,  G11B5/3954 ,  G11B5/3974

    摘要： A magnetic sensor for reading information from a magnetic medium. The magnetic sensor includes a bottom electrode and a first sensor disposed above the bottom electrode. The magnetic sensor also includes a middle electrode disposed above the first sensor, a second sensor disposed above the middle electrode and a top electrode disposed above the second sensor. The bottom electrode, the middle electrode and the top electrode are utilized to electrically connect the first sensor and the second sensor in parallel.

    摘要翻译： 一种用于从磁性介质读取信息的磁传感器。 磁传感器包括底电极和设置在底电极上方的第一传感器。 磁传感器还包括设置在第一传感器上方的中间电极，设置在中间电极上方的第二传感器和设置在第二传感器上方的顶部电极。 底部电极，中间电极和顶部电极用于并联地电连接第一传感器和第二传感器。

    GMR read sensors with non-uniform height
    19.
    发明授权
    GMR read sensors with non-uniform height 失效
    GMR读取不均匀高度的传感器

    公开(公告)号：US06433973B1

    公开(公告)日：2002-08-13

    申请号：US09557353

    申请日：2000-04-25

    申请人： Shaoping Li ,  Charles Dominic Potter

    发明人： Shaoping Li ,  Charles Dominic Potter

    IPC分类号： G11B539

    CPC分类号： B82Y10/00 ,  G11B5/3116 ,  G11B5/3903

    摘要： A magnetoresistive sensor including spin valve sensor layers, an air bearing surface perpendicular to a first edge region common to the spin valve sensor layers, and a non-planar surface perpendicular to a second edge region common to the spin valve sensor layers and opposite the air bearing surface. The invention also features a method for producing a magnetoresistive sensor. The method includes forming a plurality of spin valve sensor layers, wherein an air bearing surface including a plane perpendicular to a first edge region common to the spin valve sensor layers is formed. Furthermore, a non-planar surface including a plane perpendicular to a second edge region common to the spin valve sensor layers, and opposite the air bearing surface is formed.

    摘要翻译： 包括自旋阀传感器层的磁阻传感器，垂直于自旋阀传感器层共有的第一边缘区域的空气轴承表面和垂直于自旋阀传感器层共同的第二边缘区域并与空气相对的非平面表面 承载面。 本发明还具有用于制造磁阻传感器的方法。 该方法包括形成多个自旋阀传感器层，其中形成包括垂直于自旋阀传感器层共有的第一边缘区域的平面的空气轴承表面。 此外，形成包括垂直于自旋阀传感器层共同的第二边缘区域并与空气支承表面相对的平面的非平面表面。

    Intermediate layer for perpendicular magnetic recording medium with high permeability grain boundaries
    20.
    发明授权
    Intermediate layer for perpendicular magnetic recording medium with high permeability grain boundaries 有权
    具有高磁导率晶界的垂直磁记录介质中间层

    公开(公告)号：US08993133B1

    公开(公告)日：2015-03-31

    申请号：US12977533

    申请日：2010-12-23

    申请人： Shaoping Li ,  B. Ramamurthy Acharya

    发明人： Shaoping Li ,  B. Ramamurthy Acharya

    IPC分类号： G11B5/66 ,  G11B5/706

    CPC分类号： G11B5/70626 ,  G11B5/667 ,  G11B5/7325

    摘要： A perpendicular magnetic recording (PMR) media including a non-magnetic or superparamagnetic grain isolation magnetic anisotropy layer (GIMAL) to provide a template for initially well-isolated small grain microstructure as well as improvement of Ku in core grains of a magnetic recording layer. The GIMAL composition may be adjusted to have lattice parameters similar to a bottom magnetic recording layer and to provide a buffer for reducing interface strains caused by lattice mismatch between the bottom magnetic recording layer and an underlying layer.

    摘要翻译： 包括非磁性或超顺磁性晶粒分离磁各向异性层（GIMAL）的垂直磁记录（PMR）介质，以提供用于初始良好分离的小晶粒微结构的模板以及磁记录层的芯颗粒中的Ku的改进。 可以将GIMAL组合物调整为具有类似于底部磁记录层的晶格参数，并提供用于减少由底部磁记录层和下层之间的晶格失配引起的界面应变的缓冲器。