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. 14, 2012
Filed:
Mar. 26, 2008
Phillip G. Mather, Maricopa, AZ (US);
Young Sir Chung, Chandler, AZ (US);
Bradley N. Engel, Chandler, AZ (US);
Phillip G. Mather, Maricopa, AZ (US);
Young Sir Chung, Chandler, AZ (US);
Bradley N. Engel, Chandler, AZ (US);
Everspin Technologies, Inc., Chandler, AZ (US);
Abstract
A semiconductor process and apparatus provide a high-performance magnetic field sensor from two differential sensor configurations () which require only two distinct pinning axes (), where each differential sensor (e.g.,) is formed from a Wheatstone bridge structure with four unshielded MTJ sensors (-), each of which includes a magnetic field pulse generator (e.g.,) for selectively applying a field pulse to stabilize or restore the easy axis magnetization of the sense layers (e.g.,) to eliminate micromagnetic domain switches during measurements of small magnetic fields.