Patent ID: 8486723

Claim:
A method for fabricating a device for sensor magnetic fields, the method comprising: providing a substrate member having a surface region; removing at least one portion of the substrate member; forming an integrated circuit (IC) layer overlying the substrate member; forming a first magnetic field sensor element comprising at least a first material and configured to detect at least an x-axis direction, the first magnetic field sensor element being operably coupled to the IC layer; forming a second magnetic field sensor element comprising at least the first material and configured to detect at least a y-axis direction, the second magnetic field sensor element being operably coupled to the IC layer; forming a third magnetic field sensor element comprising at least the first material and configured to detect at least a z-axis direction, the third magnetic field sensor element being operably coupled to the IC layer; forming at least one magnetic field concentrator spatially disposed overlying at least one portion of the substrate member, the magnetic field concentrator being formed within a vicinity of the third magnetic field sensor element; and forming at least one passivation material overlying the first, second, and third magnetic field sensor elements and the surface region; wherein all of the x-axis, y-axis, and z-axis directions are configured in a mutually orthogonal manner.