会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Magnetoresistive sensor having at least one layer with a pinned
magnetization direction
    • 磁阻传感器具有至少一个具有钉扎磁化方向的层
    • US6104189A
    • 2000-08-15
    • US95038
    • 1998-06-10
    • Rolf AllenspachWolfgang F. Weber
    • Rolf AllenspachWolfgang F. Weber
    • G01R33/09G11B5/00G11B5/31G11B5/39H01F10/32G11B5/127H01F7/06H01L43/00
    • B82Y25/00B82Y10/00G01R33/093G11B5/3903H01F10/3281G11B2005/3996G11B5/00G11B5/3163Y10T29/49044Y10T428/12465
    • A magnetoresistive spin valve sensor is described. Such a sensor is also known as a GMR sensor or giant magnetoresistive sensor. The layers (24, 26, 28) of the sensor are mounted on a substrate (20) having steps or terraces on one of its face. The steps or terraces on the substrate's surface cooperate with one or more of the ferromagnetic layers (24, 28) of the sensor to determine the layers' magnetic properties. Specifically, the thickness of one or more of the sensor's layers can be set above or below a critical thickness which determines whether the easy direction of uniaxial magnetization of a layer of that particular material is fixed or "pinned". If pinned, the layer has a high coercive field. Thus, the new device avoids a biasing layer to pin any of the magnetic layers. Preferably the easy axes of the first two ferromagnetic layers (24, 28) are set at 90.degree. to one another in the zero applied field condition by appropriate choice of layer thickness. A method for manufacturing and several fields of use of the sensor are also disclosed.
    • 描述了一种磁阻自旋阀传感器。 这种传感器也称为GMR传感器或巨磁阻传感器。 传感器的层(24,26,28)安装在其表面之一上具有台阶或台阶的基板(20)上。 衬底表面上的台阶或台阶与传感器的一个或多个铁磁层(24,28)配合,以确定层的磁特性。 具体地,可以将传感器层中的一个或多个的厚度设置在临界厚度的上方或下方,该临界厚度确定该特定材料的层的单轴磁化的容易方向是固定的还是“固定的”。 如果被固定,则该层具有高矫顽力场。 因此,新器件避免了偏置层来钉住任何磁性层。 优选地,通过适当选择层厚度,在零施加场条件下将前两个铁磁层(24,28)的易轴设置为彼此成90°。 还公开了一种制造方法和传感器的若干使用领域。
    • 2. 发明授权
    • Magnetoresistive spin valve sensor with stepped layers
    • 具有阶梯层的磁阻自旋阀传感器
    • US5867025A
    • 1999-02-02
    • US836841
    • 1997-06-13
    • Rolf AllenspachWolfgang F. Weber
    • Rolf AllenspachWolfgang F. Weber
    • G01R33/09G11B5/39H01L43/08H01F1/00H01L43/00
    • B82Y25/00G01R33/093Y10T428/12465
    • A magnetoresistive spin valve sensor is described. Such a sensor is also known as a GMR sensor or giant magnetoresistive sensor. The layers (24, 26, 28) of the sensor are mounted on a substrate (20) having steps or terraces on one of its face. The steps or terraces on the substrate's surface cooperate with one or more of the ferromagnetic layers (24, 28) of the sensor to determine the layers' magnetic properties. Specifically, the thickness of one or more of the sensor's layers can be set above or below a critical thickness which determines whether the easy direction of uniaxial magnetization of a layer of that particular material is fixed or "pinned". If pinned, the layer has a high coercive field. Thus, the new device avoids a biasing layer to pin any of the magnetic layers. Preferably the easy axes of the first two ferromagnetic layers (24, 28) are set at 90.degree. to one another in the zero applied field condition by appropriate choice of layer thickness. A method for manufacturing and several fields of use of the sensor are also disclosed.
    • PCT No.PCT / EP94 / 03836 Sec。 371日期1997年6月13日 102(e)日期1997年6月13日PCT 1994年11月21日PCT PCT。 公开号WO96 / 16339 日期:1996年5月30日描述了一种磁阻自旋阀传感器。 这种传感器也称为GMR传感器或巨磁阻传感器。 传感器的层(24,26,28)安装在其表面之一上具有台阶或台阶的基板(20)上。 衬底表面上的台阶或台阶与传感器的一个或多个铁磁层(24,28)配合,以确定层的磁特性。 具体地,可以将传感器层中的一个或多个的厚度设置在临界厚度的上方或下方,该临界厚度确定该特定材料的层的单轴磁化的容易方向是固定的还是“固定的”。 如果被固定,则该层具有高矫顽力场。 因此,新器件避免了偏置层来钉住任何磁性层。 优选地,通过适当选择层厚度,在零施加场条件下将前两个铁磁层(24,28)的易轴设置为彼此成90°。 还公开了一种制造方法和传感器的若干使用领域。