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INTEGRATED TRIAXIAL MAGNETOMETER OF SEMICONDUCTOR MATERIAL MANUFACTURED IN MEMS TECHNOLOGY

  • US 20110140693A1
  • Filed: 12/10/2010
  • Published: 06/16/2011
  • Est. Priority Date: 12/10/2009
  • Status: Active Grant
First Claim
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1. An integrated MEMS triaxial magnetometer, comprising:

  • first and second suspended masses defining a plane and configured to be flowed by respective currents in the plane in mutually transverse directions;

    first and second fixed electrodes capacitively coupled to the first and second suspended masses, respectively;

    mobile sensing electrodes carried by the first suspended mass; and

    fixed sensing electrodes capacitively coupled to the mobile sensing electrodes, respectively,the first suspended mass being configured to be mobile transversely with respect to the plane toward or away from the first fixed electrode in presence of a magnetic field having a component in a first direction parallel to the plane and transverse to the current to be flowed in the first suspended mass;

    the second suspended mass being configured to be mobile transversely with respect to the plane toward or away from the second fixed electrode in presence of a magnetic field having a component in a second direction parallel to the plane and transverse to the current to be flowed in the second suspended mass; and

    the first suspended mass being configured to be mobile in a parallel direction to the plane and transverse to the current to be flowed in the first suspended mass in presence of a magnetic field having a component in a third direction perpendicular to the plane.

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