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:
Jan. 10, 2017
Filed:
Dec. 20, 2013
Carlos M. Acuna, Tempe, AZ (US);
Mohammad A. Faruque, Chandler, AZ (US);
Kevin R. Fugate, Madison, MS (US);
Todd D. Hoffmann, Mesa, AZ (US);
Paige M. Holm, Phoenix, AZ (US);
Peter T. Jones, Scottsdale, AZ (US);
Rigoberto Lopez, Jr., Chandler, AZ (US);
William D. Mcwhorter, Goodyear, AZ (US);
Carlos M. Acuna, Tempe, AZ (US);
Mohammad A. Faruque, Chandler, AZ (US);
Kevin R. Fugate, Madison, MS (US);
Todd D. Hoffmann, Mesa, AZ (US);
Paige M. Holm, Phoenix, AZ (US);
Peter T. Jones, Scottsdale, AZ (US);
Rigoberto Lopez, Jr., Chandler, AZ (US);
William D. McWhorter, Goodyear, AZ (US);
NXP USA, INC., Austin, TX (US);
Abstract
Methods, systems and apparatus are provided to apply a magnetic pre-conditioning to magnetic tunneling junction (MTJ) sensors and other micro-magnetic devices after fabrication but before testing, trimming or other subsequent processing. The fabricated sensor device is passed through a magnetic field that has a known direction and orientation relative to the device so that the device is placed into a known state prior to final testing and trimming. Various embodiments allow the field to be applied in situ by a permanent magnet or electromagnet as the devices are being processed by a conventional device handler or similar processing system.