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    • 1. 发明公开
    • 자기저항효과소자의 제조 방법
    • 制造磁阻效应元件的方法
    • KR1020070081102A
    • 2007-08-14
    • KR1020070013222
    • 2007-02-08
    • 가부시끼가이샤 도시바
    • 유아사히로미후꾸자와히데아끼후지요시히꼬이와사끼히또시
    • H01C17/00
    • G11B5/3909B82Y10/00B82Y25/00B82Y40/00G01R33/093G11B5/3163G11B5/3929G11B2005/3996H01F10/3259H01F10/3272H01F10/3281H01F41/303H01F41/325
    • A method for manufacturing a magnetoresistance effect element is provided to achieve a highly sensitive magnetism detection by obtaining a large amount of variation of magnetoresistance, high reliability, and high magnetic stability. A magnetoresistance effect element includes a first electrode(1), a substrate layer(2), a semi-magnetic layer(3), a magnetization fixed layer(4), a spacer layer(5), a magnetization free layer(6), a first protective layer(7), a second protective layer(8), and a second electrode(9). The substrate layer includes a Ta layer with a thickness of 5nm and a Ru layer with a thickness of 2nm. The anti-ferromagnetic layer has a thickness of 15nm and is made of a PtMn material. The magnetization fixed layer includes a first magnetization fixed layer(4-1), a magnetization anti-parallel coupling layer(4-2), and a second magnetization fixed layer(4-3). The spacer layer is made of a Cu material and has a thickness of 3nm. The first magnetization fixed layer has a thickness between 3 and 4nm and is made of a Co90Fe10 material. The magnetization anti-parallel coupling layer has a thickness of 0.9nm and is made of the Ru material. The second magnetization fixed layer includes a functional layer(10-1) applied therein and is bonded with the Co90Fe10 layer with a thickness of 1.5nm.
    • 提供一种用于制造磁阻效应元件的方法,通过获得大量的磁阻变化,高可靠性和高磁稳定性来实现高灵敏度的磁检测。 磁阻效应元件包括第一电极(1),基底层(2),半磁性层(3),磁化固定层(4),间隔层(5),无磁化层(6) ,第一保护层(7),第二保护层(8)和第二电极(9)。 衬底层包括厚度为5nm的Ta层和厚度为2nm的Ru层。 反铁磁层的厚度为15nm,由PtMn材料制成。 磁化固定层包括第一磁化固定层(4-1),磁化反平行耦合层(4-2)和第二磁化固定层(4-3)。 间隔层由Cu材料制成,厚度为3nm。 第一磁化固定层的厚度在3和4nm之间,由Co90Fe10材料制成。 磁化反平行耦合层的厚度为0.9nm,由Ru材料制成。 第二磁化固定层包括施加在其中的功能层(10-1),并与厚度为1.5nm的Co90Fe10层结合。
    • 7. 发明公开
    • 자기 저항 효과 소자, 자기 헤드 및 자기 재생 장치
    • 磁阻效应元件,磁头和磁性再生系统
    • KR1020020025683A
    • 2002-04-04
    • KR1020010056404
    • 2001-09-13
    • 가부시끼가이샤 도시바
    • 유아사히로미요다히로아끼가미구찌유우조나가따도모히꼬
    • G11B5/39
    • B82Y25/00B82Y10/00G01R33/093G11B5/00G11B5/3912G11B5/3919G11B5/3922G11B5/3929G11B5/398H01F10/324H01L43/08
    • PURPOSE: A magnetic resistance effect element, a magnetic head, and a magnetic producing system are provided to precisely define the active region in a CPP(Current Perpendicular to Plane) type MR element and defectively suppress and eliminate the influence of a magnetic field due to current from an electrode. CONSTITUTION: The active region(13A) of an MR element(10) is defined by the area of a portion through which a sense current flows. Moreover, the shape of the cross section of a pillar electrode(14) or pillar non-magnetic material for defining the active region of the element is designed to extend along the flow of a magnetic flux to efficiently read only a signal from a track directly below the active region. When the magnetic field due to current from the pillar electrode is not ignored, the magnetic flux from a recording medium asymmetrically enters yokes and the magnetization free layer of the MR element to some extent. If the cross section of the pillar electrode is designed to be asymmetric to extend along the flow of the magnetic flux, the regenerative efficiency is improved.
    • 目的:提供磁阻效应元件,磁头和磁性产生系统,以精确定义CPP(垂直于平面的电流)型MR元件中的有源区域,并有效抑制和消除由于 来自电极的电流。 构成:MR元件(10)的有源区域(13A)由感测电流流过的部分的面积限定。 此外,用于限定元件的有源区域的柱状电极(14)或柱状非磁性材料的横截面的形状被设计成沿着磁通量的流动延伸,以直接有效地仅从轨道读取信号 低于活跃区域。 当由于来自柱电极的电流引起的磁场不被忽略时,来自记录介质的磁通量在一定程度上不对称地进入MR元件的磁轭和磁化自由层。 如果将柱状电极的截面设计为沿着磁通的流动而不对称地延伸,则再生效率得以提高。