The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 22, 2017
Filed:
Jan. 26, 2016
Freescale Semiconductor, Inc., Austin, TX (US);
Paige M. Holm, Phoenix, AZ (US);
Lianjun Liu, Chandler, AZ (US);
NXP USA, Inc., Austin, TX (US);
Abstract
A magnetic field sensor comprises a sensor bridge having multiple sensor legs. Each sensor leg includes magnetoresistive sense elements, each comprising a pinned layer having a reference magnetization parallel to a plane of the sensor and a sense layer having a sense magnetization that is skewed away from three orthogonal axes. The sense magnetization of a portion of the sense elements is oriented in a first direction and the sense magnetization of a different portion of the sense elements is magnetically biased in a second direction by a permanent magnet layer. The second direction differs from the first direction by an opposing angular magnitude to yield a balanced sensor bridge that produces a zero-offset outcome in the absence of an external magnetic field.