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公开(公告)号：US20090195904A1
公开(公告)日：2009-08-06
申请号：US11996308
申请日：2006-07-13
摘要： The invention relates to a method of manufacturing a device (10) comprising a layer (12) having a pattern of disjunct portions (14) of magnetic material (18) generating a corresponding pattern of local magnetic fields (2). The magnetic material (18) is constituted of particles (22) dispersed in a solid substance (24). The particles are magnetically stable and substantially aligned for generating the local magnetic fields (2). The method comprises the steps of: providing a substance (32) having the particles (22) dispersed in the substance (32), the substance (32) having a viscosity for allowing the particles (22) to move in the substance (32), creating the pattern of disjunct portions (14) of the substance (32) in the layer (12) of the device (10), applying an external magnetic field (50) for substantially aligning the particles (22) in the disjunct portions (14) of the substance (32), and solidifying the substance (32) for obtaining the solid substance (24). The benefit of this method is that instead of changing the magnetization inside the particles (22), the particles (22) are moved, typically rotated, to be aligned to the externally applied magnetic field (50). Subsequent solidification of the substance (32) fixes the aligned magnetically stable particles (22) inside the solid substance (24) which results in a permanently magnetized magnetic material (18).
摘要翻译： 本发明涉及一种制造器件（10）的方法，该器件（10）包括具有形成局部磁场（2）的相应图案的磁性材料（18）的分离部分（14）的图案的层（12）。 磁性材料（18）由分散在固体物质（24）中的颗粒（22）构成。 颗粒是磁性稳定的并且基本对齐以产生局部磁场（2）。 该方法包括以下步骤：提供具有分散在物质（32）中的颗粒（22）的物质（32），物质（32）具有使粒子（22）在物质（32）中移动的粘度， ，在装置（10）的层（12）中产生物质（32）的分离部分（14）的图案，施加外部磁场（50），用于使分离部分中的颗粒（22）基本上对准（ 14），并固化物质（32）以获得固体物质（24）。 该方法的优点在于，代替改变颗粒（22）内部的磁化，颗粒（22）通常被旋转以与外部施加的磁场（50）对齐。 随后物质（32）的固化将固定物质（24）内的对准的磁稳定颗粒（22）固定，导致永久磁化的磁性材料（18）。
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公开(公告)号：US06501271B1
公开(公告)日：2002-12-31
申请号：US09306068
申请日：1999-05-06
IPC分类号： G01R3309
CPC分类号： G11C11/16 , B82Y25/00 , G01R33/093 , Y10S428/90
摘要： A robust Giant Magneto Resistive effect type multilayer sensor comprising a free and a pinned ferromagnetic layer, which can withstand high temperatures and strong magnetic fields as required in automotive applications. The GMR multi-layer has an asymmetric magneto-resistive curve and enables sensors with complementary output signals so that a Wheatstone bridge is possible. The improvement is obtained by a combination of measures including the use of a combination of an Artificial Anti Ferromagnet as the pinned layer and an IrMn exchange-biasing layer, the latter preferably arranged at the bottom of the layer stack on top of a buffer layer.
摘要翻译： 一种强大的巨磁阻效应型多层传感器，包括一个自由和一个固定的铁磁层，可承受汽车应用所需的高温和强磁场。 GMR多层具有不对称的磁阻曲线，使传感器具有互补的输出信号，从而使惠斯通电桥成为可能。 通过组合使用人造抗铁磁体作为被钉扎层的组合和IrMn交换偏置层的组合来获得改进，后者优选地布置在缓冲层顶部的层堆叠的底部。
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