Integrated lateral short circuit for a beneficial modification of current distribution structure for xMR magnetoresistive sensors
    3.
    发明授权
    Integrated lateral short circuit for a beneficial modification of current distribution structure for xMR magnetoresistive sensors 有权
    用于xMR磁阻传感器的电流分布结构的有益修改的集成横向短路

    公开(公告)号:US08193897B2

    公开(公告)日:2012-06-05

    申请号:US13004769

    申请日:2011-01-11

    IPC分类号: H01C10/00

    摘要: The invention relates to a magnetoresistive device formed to sense an externally applied magnetic field, and a related method. The magnetoresistive device includes a magnetoresistive stripe formed over an underlying, metallic layer that is patterned to produce electrically isolated conductive regions over a substrate, such as a silicon substrate. An insulating layer separates the patterned metallic layer from the magnetoresistive stripe. A plurality of conductive vias is formed to couple the isolated regions of the metallic layer to the magnetoresistive stripe. The conductive vias form local short circuits between the magnetoresistive stripe and the isolated regions of the metallic layer to alter the uniformity of a current flow therein, thereby improving the position and angular sensing accuracy of the magnetoresistive device. In an advantageous embodiment, the metallic layer is formed as electrically conductive stripes oriented at approximately a 45° angle with respect to an axis of the magnetoresistive device.

    摘要翻译: 本发明涉及一种用于感测外部施加的磁场的磁阻器件及其相关方法。 磁阻器件包括形成在下面的金属层上的磁阻条,其被图案化以在诸如硅衬底的衬底上产生电隔离的导电区域。 绝缘层将图案化金属层与磁阻条纹分开。 形成多个导电通孔以将金属层的隔离区域耦合到磁阻条纹。 导电通孔在磁阻条和金属层的隔离区之间形成局部短路,以改变其中的电流的均匀性,从而改善磁阻器件的位置和角度感测精度。 在有利的实施例中,金属层形成为相对于磁阻器件的轴线以大约45°角定向的导电条纹。

    Method and apparatus for defined magnetizing of permanently magnetizable elements and magnetoresistive sensor structures
    4.
    发明授权
    Method and apparatus for defined magnetizing of permanently magnetizable elements and magnetoresistive sensor structures 有权
    用于定义永久磁化元件和磁阻传感器结构的磁化的方法和装置

    公开(公告)号:US08063632B2

    公开(公告)日:2011-11-22

    申请号:US12163552

    申请日:2008-06-27

    IPC分类号: G01R33/09

    CPC分类号: G01R33/1207 G01R33/1215

    摘要: A method of magnetizing a permanently magnetizable element associated with a magnetic field sensor structure includes generating a test magnetic field penetrating the magnetic field sensor structure and the permanently magnetizable element, detecting the magnetic field and providing a test signal based on a magnetic field through the magnetic field sensor structure, aligning the test magnetic field and the magnetic field sensor structure with the permanently magnetizable element to each other, until the test signal reaches a set value corresponding to a predetermined magnetized field distribution with respect to the magnetic field sensor structure, and generating a magnetizing field for permanently magnetizing the element to be permanently magnetized, wherein the magnetizing field corresponds to the predetermined magnetic field distribution within a tolerance range.

    摘要翻译: 磁化与磁场传感器结构相关联的永久可磁化元件的方法包括产生穿过磁场传感器结构和永久可磁化元件的测试磁场,检测磁场并且通过磁场提供基于磁场的测试信号 场传感器结构,将测试磁场和磁场传感器结构与永久可磁化元件相互对准,直到测试信号达到相对于磁场传感器结构的预定磁场分布对应的设定值,并产生 用于永久磁化待永久磁化的元件的磁化场,其中磁化场对应于在公差范围内的预定磁场分布。

    Integrated Lateral Short Circuit for a Beneficial Modification of Current Distribution Structure for xMR Magnetoresistive Sensors
    5.
    发明申请
    Integrated Lateral Short Circuit for a Beneficial Modification of Current Distribution Structure for xMR Magnetoresistive Sensors 有权
    用于xMR磁阻传感器电流分布结构的有益修改的集成侧向短路

    公开(公告)号:US20110163746A1

    公开(公告)日:2011-07-07

    申请号:US13004769

    申请日:2011-01-11

    IPC分类号: G01R33/02 H01C10/00 H01K3/10

    摘要: The invention relates to a magnetoresistive device formed to sense an externally applied magnetic field, and a related method. The magnetoresistive device includes a magnetoresistive stripe formed over an underlying, metallic layer that is patterned to produce electrically isolated conductive regions over a substrate, such as a silicon substrate. An insulating layer separates the patterned metallic layer from the magnetoresistive stripe. A plurality of conductive vias is formed to couple the isolated regions of the metallic layer to the magnetoresistive stripe. The conductive vias form local short circuits between the magnetoresistive stripe and the isolated regions of the metallic layer to alter the uniformity of a current flow therein, thereby improving the position and angular sensing accuracy of the magnetoresistive device. In an advantageous embodiment, the metallic layer is formed as electrically conductive stripes oriented at approximately a 45° angle with respect to an axis of the magnetoresistive device.

    摘要翻译: 本发明涉及一种用于感测外部施加的磁场的磁阻器件及其相关方法。 磁阻器件包括形成在下面的金属层上的磁阻条,其被图案化以在诸如硅衬底的衬底上产生电隔离的导电区域。 绝缘层将图案化金属层与磁阻条纹分开。 形成多个导电通孔以将金属层的隔离区域耦合到磁阻条纹。 导电通孔在磁阻条和金属层的隔离区之间形成局部短路,以改变其中的电流的均匀性,从而改善磁阻器件的位置和角度感测精度。 在有利的实施例中,金属层形成为相对于磁阻器件的轴线以大约45°角定向的导电条纹。

    Integrated lateral short circuit for a beneficial modification of current distribution structure for xMR magnetoresistive sensors
    7.
    发明授权
    Integrated lateral short circuit for a beneficial modification of current distribution structure for xMR magnetoresistive sensors 有权
    用于xMR磁阻传感器的电流分布结构的有益修改的集成横向短路

    公开(公告)号:US08373536B2

    公开(公告)日:2013-02-12

    申请号:US13481183

    申请日:2012-05-25

    IPC分类号: H01C10/00

    摘要: The invention relates to a magnetoresistive device formed to sense an externally applied magnetic field, and a related method. The magnetoresistive device includes a magnetoresistive stripe formed over an underlying, metallic layer that is patterned to produce electrically isolated conductive regions over a substrate, such as a silicon substrate. An insulating layer separates the patterned metallic layer from the magnetoresistive stripe. A plurality of conductive vias is formed to couple the isolated regions of the metallic layer to the magnetoresistive stripe. The conductive vias form local short circuits between the magnetoresistive stripe and the isolated regions of the metallic layer to alter the uniformity of a current flow therein, thereby improving the position and angular sensing accuracy of the magnetoresistive device. In an advantageous embodiment, the metallic layer is formed as electrically conductive stripes oriented at approximately a 45° angle with respect to an axis of the magnetoresistive device.

    摘要翻译: 本发明涉及一种用于感测外部施加的磁场的磁阻器件及其相关方法。 磁阻器件包括形成在下面的金属层上的磁阻条,其被图案化以在诸如硅衬底的衬底上产生电隔离的导电区域。 绝缘层将图案化金属层与磁阻条纹分开。 形成多个导电通孔以将金属层的隔离区域耦合到磁阻条纹。 导电通孔在磁阻条和金属层的隔离区之间形成局部短路,以改变其中的电流的均匀性,从而改善磁阻器件的位置和角度感测精度。 在有利的实施例中,金属层形成为相对于磁阻器件的轴线以大约45°角定向的导电条纹。

    Integrated Lateral Short Circuit for a Beneficial Modification of Current Distribution Structure for xMR Magnetoresistive Sensors
    8.
    发明申请
    Integrated Lateral Short Circuit for a Beneficial Modification of Current Distribution Structure for xMR Magnetoresistive Sensors 有权
    用于xMR磁阻传感器电流分布结构的有益修改的集成侧向短路

    公开(公告)号:US20120229133A1

    公开(公告)日:2012-09-13

    申请号:US13481183

    申请日:2012-05-25

    IPC分类号: G01R33/02 H05K3/00

    摘要: The invention relates to a magnetoresistive device formed to sense an externally applied magnetic field, and a related method. The magnetoresistive device includes a magnetoresistive stripe formed over an underlying, metallic layer that is patterned to produce electrically isolated conductive regions over a substrate, such as a silicon substrate. An insulating layer separates the patterned metallic layer from the magnetoresistive stripe. A plurality of conductive vias is formed to couple the isolated regions of the metallic layer to the magnetoresistive stripe. The conductive vias form local short circuits between the magnetoresistive stripe and the isolated regions of the metallic layer to alter the uniformity of a current flow therein, thereby improving the position and angular sensing accuracy of the magnetoresistive device. In an advantageous embodiment, the metallic layer is formed as electrically conductive stripes oriented at approximately a 45° angle with respect to an axis of the magnetoresistive device.

    摘要翻译: 本发明涉及一种用于感测外部施加的磁场的磁阻器件及其相关方法。 磁阻器件包括形成在下面的金属层上的磁阻条,其被图案化以在诸如硅衬底的衬底上产生电隔离的导电区域。 绝缘层将图案化金属层与磁阻条纹分开。 形成多个导电通孔以将金属层的隔离区域耦合到磁阻条纹。 导电通孔在磁阻条和金属层的隔离区之间形成局部短路,以改变其中的电流的均匀性,从而改善磁阻器件的位置和角度感测精度。 在有利的实施例中,金属层形成为相对于磁阻器件的轴线以大约45°角定向的导电条纹。

    Integrated lateral short circuit for a beneficial modification of current distribution structure for xMR magnetoresistive sensors
    9.
    发明授权
    Integrated lateral short circuit for a beneficial modification of current distribution structure for xMR magnetoresistive sensors 有权
    用于xMR磁阻传感器的电流分布结构的有益修改的集成横向短路

    公开(公告)号:US07872564B2

    公开(公告)日:2011-01-18

    申请号:US11941853

    申请日:2007-11-16

    IPC分类号: H01C10/32

    摘要: The invention relates to a magnetoresistive device formed to sense an externally applied magnetic field, and a related method. The magnetoresistive device includes a magnetoresistive stripe formed over an underlying, metallic layer that is patterned to produce electrically isolated conductive regions over a substrate, such as a silicon substrate. An insulating layer separates the patterned metallic layer from the magnetoresistive stripe. A plurality of conductive vias is formed to couple the isolated regions of the metallic layer to the magnetoresistive stripe. The conductive vias form local short circuits between the magnetoresistive stripe and the isolated regions of the metallic layer to alter the uniformity of a current flow therein, thereby improving the position and angular sensing accuracy of the magnetoresistive device. In an advantageous embodiment, the metallic layer is formed as electrically conductive stripes oriented at approximately a 45° angle with respect to an axis of the magnetoresistive device.

    摘要翻译: 本发明涉及一种用于感测外部施加的磁场的磁阻器件及其相关方法。 磁阻器件包括形成在下面的金属层上的磁阻条,其被图案化以在诸如硅衬底的衬底上产生电隔离的导电区域。 绝缘层将图案化金属层与磁阻条纹分开。 形成多个导电通孔以将金属层的隔离区域耦合到磁阻条纹。 导电通孔在磁阻条和金属层的隔离区之间形成局部短路,以改变其中的电流的均匀性,从而改善磁阻器件的位置和角度感测精度。 在有利的实施例中,金属层形成为相对于磁阻器件的轴线以大约45°角定向的导电条纹。

    Micromechanical sensor and method for its production
    10.
    发明授权
    Micromechanical sensor and method for its production 有权
    微机械传感器及其生产方法

    公开(公告)号:US06389902B2

    公开(公告)日:2002-05-21

    申请号:US09781798

    申请日:2001-02-12

    IPC分类号: G01L900

    摘要: The invention relates to a micromechanical sensor and to a corresponding production method that includes the following steps: a) preparing a doped semiconductor wafer; b) applying an epitaxial layer that is doped in such a way that a jump in the charge carrier density in the interface between the semiconductor wafer and the epitaxial layer occurs; c) optionally etching ventilation holes traversing the epitaxial layer and optionally filling the ventilation holes with a sacrificial material; d) depositing at least one sacrificial layer, at least one spacing layer, a membrane and optionally a semiconductor circuit on the top side of the epitaxial layer using a technology known per se, wherein the semiconductor circuit may be applied after the membrane is formed or while depositing the layers required to form the membrane; e) etching a hole on the back part of the sensor, wherein the etching method is selected in such a way that etching advances in the direction of the top side and ceases in the interference between the wafer and the epitaxial layer by changing charge carrier concentration. The invention also relates to the utilization of the micromechanical sensor in pressure sensors or microphones.

    摘要翻译: 本发明涉及一种微机械传感器及相应的生产方法,包括以下步骤:a)制备掺杂半导体晶片; b)施加掺杂的外延层,使得发生半导体晶片和外延层之间的界面中的电荷载流子密度的跳跃; c)可选地蚀刻穿过外延层的通气孔并且可选地用牺牲材料填充通风孔; d)使用本身已知的技术在外延层的顶侧上沉积至少一个牺牲层,至少一个间隔层,膜和任选的半导体电路,其中半导体电路可以在膜被形成之后施加 同时沉积形成膜所需的层; e)蚀刻传感器后部的孔,其中蚀刻方法被选择为使得蚀刻沿着顶侧的方向前进并且通过改变电荷载流子浓度而在晶片和外延层之间的干涉中停止 。 本发明还涉及在压力传感器或麦克风中利用微机械传感器。