Patent ID: 9543067
Date: 2017-01-10
CPC Classifications: G01R,H01F

Claim:
1. A method executable by a handler apparatus to process a fabricated sensor device that comprises a magnetic sensing element and a flux guide aligned to direct magnetic flux toward the magnetic sensing element, the method comprising: passing the fabricated sensor device through an externally applied magnetic field applied by an external magnetic field source that is outside of the fabricated sensor device by the handler apparatus, the externally applied magnetic field having a component aligned along a long axis of the flux guide, the component of the externally applied magnetic field having a magnitude along the long axis of the flux guide sufficient to place the flux guide of the fabricated sensor device into a known magnetic state; prior to passing the fabricated sensor device through the externally applied magnetic field, the handler apparatus aligning the fabricated sensor device to the externally applied magnetic field so that the long axis of the flux guide is aligned to the component of the externally applied magnetic field while the fabricated sensor device passes through the externally applied magnetic field to thereby magnetically pre-condition the fabricated sensor device prior to testing and operation of the fabricated sensor device; and after passing the fabricated sensor device through the externally applied magnetic field, the handler apparatus providing the fabricated and pre-conditioned sensor device for subsequent testing and operation of the fabricated sensor device.