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    • 7. 发明申请
    • MAGNETIC FIELD SENSING DEVICE
    • 磁场传感装置
    • US20130320972A1
    • 2013-12-05
    • US13982508
    • 2011-02-03
    • Uwe LoreitSebastian Weber
    • Uwe LoreitSebastian Weber
    • G01R33/09
    • G01R33/096B82Y25/00G01R31/318516G01R33/0011G01R33/0017G01R33/093G01R33/098
    • The present invention relates to a magnetic field sensing device (50) comprising several functionally different layers (38, 60, 70), wherein a Wheatstone bridge layer (70) comprises at least two resistors (20) of a Wheatstone bridge (18), each resistor (20) comprises at least one magnetic field sensing element (10) in the form of a resistor subelement (22), and a flip conductor layer (38) comprising at least one flip conductor (30) for flipping the internal magnetization state of each magnetic field sensing element (10). The flip conductor (30) comprises a plurality of conductor stripes (32) being arranged on at least two different flip conductor sublayers (38-1, 38-2) of said flip conductor layer (38) and being electrically coupled with each other through vias.The multilayer arrangement of said flip conductor (30) provides a compact design of said magnetic field sensing device (50), such that a decreased power consumption, decreased inductance and improved sensitivity of the magnetic field sensing device can be achieved.
    • 本发明涉及包括几个功能不同的层(38,60,70)的磁场感测装置(50),其中惠斯登电桥层(70)包括惠斯通电桥(18)的至少两个电阻器(20) 每个电阻器(20)包括形成电阻子元件(22)的至少一个磁场感测元件(10)和包括用于翻转内部磁化状态的至少一个翻盖导体(30)的翻盖导体层(38) 的每个磁场感测元件(10)。 翻盖导体(30)包括多个导体条(32),布置在所述翻转导体层(38)的至少两个不同的翻转导体子层(38-1,38-2)上,并且彼此通过 通孔 所述翻转导体(30)的多层布置提供了所述磁场感测装置(50)的紧凑设计,使得可以实现磁场感测装置的功耗降低,电感降低和灵敏度的提高。