公开(公告)号：US20130127454A1

公开(公告)日：2013-05-23

申请号：US13683922

申请日：2012-11-21

Applicant: STMicroelectronics S.r.I.

Inventor： Tommaso Ungaretti ,  Benedetto Vigna ,  Fabio Bottinelli

IPC: G01R33/09 ,  H01L43/14 ,  G01R33/07

CPC classification number: G01R33/096 ,  G01R33/0005 ,  G01R33/0206 ,  G01R33/07 ,  H01L43/14

Abstract: A magnetic field sensor, including a Hall magnetic sensor, formed within a first die and configured to detect a first magnetic field, and a first anisotropic magnetoresistive magnetic sensor, having a first anisotropic magnetoresistive transducer, formed within a second die and configured to generate an electrical measurement quantity as a function of a second magnetic field. An electronic reading circuit formed within the first die, is electrically connected to the first anisotropic magnetoresistive transducer, and provides a first measure indicating the second magnetic field, on the basis of the electrical measurement quantity. The first and second dice are fixed with respect to one another and have main surfaces parallel to the same reference plane. The first magnetic field being oriented in a first direction perpendicular to the reference plane and the second magnetic field being oriented in a second direction parallel to the reference plane.

Abstract translation: 包括形成在第一管芯内并构造成检测第一磁场的霍尔磁传感器的磁场传感器和具有第一各向异性磁阻传感器的第一各向异性磁阻传感器，形成在第二管芯内，并被配置为产生 电测量量作为第二磁场的函数。 形成在第一管芯内的电子读取电路电连接到第一各向异性磁阻换能器，并且基于电测量量提供指示第二磁场的第一测量。 第一和第二骰子相对于彼此固定，并且主表面平行于相同的参考平面。 第一磁场在垂直于参考平面的第一方向上取向，而第二磁场沿平行于参考平面的第二方向定向。