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    • 6. 发明授权
    • Magnetoresistive-effect device and method for manufacturing the same
    • 磁阻效应器件及其制造方法
    • US06791804B2
    • 2004-09-14
    • US10337479
    • 2003-01-06
    • Daigo AokiNaoya HasegawaKenji HondaYoshihiko Kakihara
    • Daigo AokiNaoya HasegawaKenji HondaYoshihiko Kakihara
    • G11B539
    • H01L43/08B82Y10/00B82Y25/00G11B5/3903G11B2005/3996H01L43/12Y10T29/49044
    • A magnetoresistive-effect device includes a multilayer film, hard bias layers arranged on both sides of the multilayer film, and electrode layers respectively deposited on the hard bias layers. The electrode layers are formed, extending over the multilayer film. Under the influence of the hard bias layers arranged on both sides of the multilayer, the multilayer film, forming the magnetoresistive-effect device, has, on the end portions thereof, insensitive regions which exhibit no substantial magnetoresistive effect. The insensitive region merely increases a direct current resistance. By extending the electrode layers over the insensitive regions of the multilayer film, a sense current is effectively flown from the electrode layer into the multilayer film. With a junction area between the electrode layer and the multilayer film increased, the direct current resistance is reduced, while the reproduction characteristics of the device are thus improved.
    • 磁阻效应器件包括多层膜,布置在多层膜两侧的硬偏置层以及分别沉积在硬偏压层上的电极层。 在多层膜上形成电极层。 在布置在多层的两侧的硬偏置层的影响下,形成磁阻效应器件的多层膜在其端部上具有不显着的磁阻效应的不敏感区域。 不敏感区域仅增加直流电阻。 通过将电极层延伸到多层膜的不敏感区域上,感测电流有效地从电极层流入多层膜。 在电极层和多层膜之间的接合区域增加的同时,直流电阻降低,同时改善了器件的再现特性。
    • 8. 发明授权
    • Spin valve thin film magnetic element and method of manufacturing the same
    • 旋转阀薄膜磁性元件及其制造方法
    • US06643107B1
    • 2003-11-04
    • US09679724
    • 2000-10-04
    • Naoya HasegawaKiyoshi SatoKenji Honda
    • Naoya HasegawaKiyoshi SatoKenji Honda
    • G11B539
    • B82Y25/00B82Y10/00G11B5/313G11B5/3143G11B5/3903H01F10/3272H01F41/325
    • The invention provides a spin valve thin film element in which output characteristics and the stability of reproduced waveforms are improved, asymmetry is decreased, and the occurrence of side reading is prevented. The spin valve thin film element includes a lamination having an antiferromagnetic layer, a first pinned magnetic layer, a nonmagnetic intermediate layer, a second pinned magnetic layer, a nonmagnetic conductive layer, a free magnetic layer, and a backed layer composed of a nonmagnetic conductive material, which are laminated on a substrate. Hard bias layers are formed on both sides of the lamination, and orient the magnetization direction of the free magnetic layer in the direction crossing the magnetization direction of the second pinned magnetic layer. Electrode layers are formed on the hard bias layers to supply a sensing current J to the lamination. The electrode layers are formed to extend to the surface of the lamination toward the central portion from both sides of the lamination.
    • 本发明提供了一种自旋阀薄膜元件,其中输出特性和再现波形的稳定性得到改善,不对称性降低,并且防止了侧读出现。 自旋阀薄膜元件包括具有反铁磁层,第一钉扎磁性层,非磁性中间层,第二钉扎磁性层,非磁性导电层,自由磁性层和由非磁性导电性构成的背衬层的层压体 材料,其被层压在基底上。 在层叠体的两面形成有硬偏移层,并且在与第二被钉扎磁性层的磁化方向交叉的方向上使自由磁性层的磁化方向取向。 电极层形成在硬偏压层上,以向层压提供感测电流J。 电极层被形成为从层压体的两侧朝向中心部分延伸到层压体的表面。