Patent ID: 9733316
Date: 2017-08-15
CPC Classifications: G01R

Claim:
1. A triaxial magnetoresistive sensor, comprising a substrate integrated with a biaxial sensor, a Z-axis sensor that has a sensing direction along the Z-axis, and an ASIC, wherein the biaxial sensor includes a X-axis bridge sensor that has a sensing direction along the X-axis and a Y-axis bridge sensor that has a sensing direction along the Y-axis, such that any two of the X, Y, and Z axes are mutually orthogonal, and wherein the Z-axis sensor and the biaxial sensor are both electrically connected to the ASIC, wherein the z-axis sensor includes at least two MTJ sensors attached to opposite slopes of a beveled groove, each opposite slope being inclined with respect to the Z-axis, each of the at least two MTJ sensors having a surface and being sensitive to a magnetic field component parallel to their respective surface, and wherein the at least two MTJ sensors in combination are only sensitive to a magnetic field component in the Z-axis.