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50 条记录 (耗时 0.039 秒)

    Uniformity in CCP magnetic read head devices
    31.
    发明授权
    Uniformity in CCP magnetic read head devices 有权
    CCP磁读头装置的均匀性

    公开(公告)号：US07872838B2

    公开(公告)日：2011-01-18

    申请号：US11704399

    申请日：2007-02-09

    申请人： Kunliang Zhang ,  Min Li ,  Yu-Hsia Chen

    发明人： Kunliang Zhang ,  Min Li ,  Yu-Hsia Chen

    IPC分类号： G11B5/127

    CPC分类号： G11B5/398 ,  B82Y25/00 ,  G01R33/093 ,  G01R33/098 ,  G11B5/3163 ,  G11B5/3906 ,  G11B5/3983 ,  Y10T428/1121

    摘要： Improved performance uniformity among CPP magnetic read devices that include an oxide barrier has been achieved by fabricating the oxide layer from at least two separately formed CCP layers. Each CCP layer is given its own PIT and IAO treatment which is of shorter duration than the PIT/IAO treatment that is used when only a single CCP layer is formed.

    摘要翻译： 通过从至少两个单独形成的CCP层制造氧化物层，已经实现了包括氧化物屏障的CPP磁读取装置之间的改进的性能均匀性。 给每个CCP层提供自己的PIT和IAO处理，其持续时间比仅在形成单个CCP层时使用的PIT / IAO处理更短。

    FCC-like trilayer AP2 structure for CPP GMR EM improvement
    36.
    发明申请
    FCC-like trilayer AP2 structure for CPP GMR EM improvement 有权
    FCC类三层AP2结构，用于CPP GMR EM改进

    公开(公告)号：US20070070556A1

    公开(公告)日：2007-03-29

    申请号：US11234719

    申请日：2005-09-23

    申请人： Kunliang Zhang ,  Dan Abels ,  Min Li ,  Chyu-Jiuh Torng ,  Chen-Jung Chien ,  Yu-Hsia Chen

    发明人： Kunliang Zhang ,  Dan Abels ,  Min Li ,  Chyu-Jiuh Torng ,  Chen-Jung Chien ,  Yu-Hsia Chen

    IPC分类号： G11B5/127 ,  G11B5/33

    CPC分类号： H01L43/10 ,  B82Y10/00 ,  B82Y25/00 ,  B82Y40/00 ,  G11B5/3906 ,  H01F10/16 ,  H01F10/3236 ,  H01F10/3259 ,  H01F10/3272 ,  H01F41/302

    摘要： A CPP-GMR spin valve having a pinned layer with an AP2/coupling/AP1 configuration is disclosed wherein the AP2 portion is a FCC-like trilayer having a composition represented by CoZFe(100-Z)/Fe(100-X)TaX/CoZFe(100-Z) or CoZFe(100-Z)/FeYCo(100-Y)/CoZFe(100-Z) where x is 3 to 30 atomic %, y is 40 to 100 atomic %, and z is 75 to 100 atomic %. Preferably, z is 90 to provide a face centered cubic structure that minimizes electromigration. Optionally, the middle layer is comprised of an Fe rich alloy such as FeCr, FeV, FeW, FeZr, FeNb, FeHf, or FeMo. EM performance is improved significantly compared to a spin valve with a conventional AP2 Co50Fe5 or Co75Fe25 single layer. The MR ratio of the spin valve is also increased and the RA is maintained at an acceptable level. The coupling layer is preferably Ru and the AP1 layer may be comprised of a lamination of CoFe and Cu layers as in [CoFe/Cu]2/CoFe.

    摘要翻译： 公开了一种具有AP2 /耦合/ AP1构型的钉扎层的CPP-GMR自旋阀，其中AP2部分是具有由Co＆lt; Z＆gt; Fe（100）表示的组成的FCC状三层 -Z）/ Fe（100-X）Ta x / Co Z（Fe）（100-Z）单层。 自旋阀的MR比也增加，RA保持在可接受的水平。 耦合层优选为Ru，并且AP1层可以由如[CoFe / Cu] 2 / CoFe中的CoFe和Cu层的层叠构成。

    Ta based bilayer seed for IrMn CPP spin valve
    37.
    发明申请
    Ta based bilayer seed for IrMn CPP spin valve 有权
    用于IrMn CPP自旋阀的Ta基双层种子

    公开(公告)号：US20060164765A1

    公开(公告)日：2006-07-27

    申请号：US11043624

    申请日：2005-01-26

    申请人： Min Li ,  Kunliang Zhang ,  Chyu-Jiuh Torng ,  Yu-Hsia Chen

    发明人： Min Li ,  Kunliang Zhang ,  Chyu-Jiuh Torng ,  Yu-Hsia Chen

    IPC分类号： G11B5/33 ,  G11B5/127

    CPC分类号： G11B5/39

    摘要： The effectiveness of an IrMn pinning layer in a CPP GMR device at high switching fields has been improved by replacing the conventional single layer seed by a layer of tantalum and either ruthenium or copper. The tantalum serves to cancel out the crystallographic influence of underlying layers while the ruthenium or copper provide a suitable base on which to grow the IrMn layer.

    摘要翻译： 通过用钽和钌或铜替代传统的单层种子，在高开关场中的CPP GMR器件中的IrMn钉扎层的有效性得到改善。 钽用于抵消下层的结晶影响，而钌或铜提供合适的碱以生长IrMn层。