Sensor chip with magnetoresistive wheatstone bridges for determining
magnetic field directions
    1.
    发明授权
    Sensor chip with magnetoresistive wheatstone bridges for determining magnetic field directions 失效
    具有磁阻惠斯通电桥的传感器芯片用于确定磁场方向

    公开(公告)号:US6011390A

    公开(公告)日:2000-01-04

    申请号:US973608

    申请日:1997-12-11

    CPC分类号: G01D5/145 G01R33/09

    摘要: An arrangement for a magnetoresistive sensor chip has two Wheatstone brid to determine the sine and cosine of the angle formed between a chip edge and the direction of the magnetic field. All resistances of the bridges consist of a plurality of magnetoresistive laminated elements (2) with current connections made of highly conductive thin films with parallel edges. When the resistances of a bridge are directly electrically interconnected, these edges form angles (5) of 90.degree. each. The parallel edges of the corresponding resistances of the sine and cosine bridges are mutually offset by 45.degree.. The magnetoresistive laminated elements (2) are distributed on the chip surface to reduce angle measurement errors to a minimum. Also disclosed are arrangements that allow the sensor chips to be used for measuring angles and positions.

    摘要翻译: PCT No.PCT / EP96 / 02538 Sec。 371 1997年12月11日第 102(e)1997年12月11日PCT PCT 1996年6月11日PCT公布。 公开号WO97 / 00426 日期1997年1月3日磁阻传感器芯片的布置有两个惠斯登电桥,以确定芯片边缘与磁场方向之间形成的角度的正弦和余弦。 桥的所有电阻由多个具有由具有平行边缘的高导电薄膜制成的电流连接的磁阻叠层元件(2)组成。 当桥的电阻直接电互连时,这些边形成90°的角度(5)。 正弦和余弦桥的相应电阻的平行边缘相互偏移45°。 磁阻层压元件(2)分布在芯片表面上,以将角度测量误差降至最低。 还公开了允许传感器芯片用于测量角度和位置的布置。