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:
Jul. 05, 2016
Filed:
Jun. 29, 2015
Applicant:
Seagate Technology Llc, Cupertino, CA (US);
Inventors:
Eric Walter Singleton, Maple Plain, MN (US);
Zhiguo Ge, Edina, MN (US);
Assignee:
SEAGATE TECHNOLOGY LLC, Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/33 (2006.01); G11B 5/39 (2006.01); G01R 33/09 (2006.01); G01R 33/12 (2006.01); G11B 5/31 (2006.01);
U.S. Cl.
CPC ...
G11B 5/3906 (2013.01); G01R 33/091 (2013.01); G01R 33/1284 (2013.01); G11B 5/3163 (2013.01); G11B 5/33 (2013.01); G11B 5/398 (2013.01); G11B 5/3912 (2013.01); G11B 5/3929 (2013.01); G11B 5/3932 (2013.01); G11B 5/3938 (2013.01);
Abstract
The implementations disclosed herein provide for a spin transport sensor including a synthetic antiferromagnet (SAF) adjacent a shield element. The SAF extends to an air-bearing surface (ABS) and provides a current path from a current source to an ABS-region of a spin conductor layer. Spin current diffuses from the spin conductor layer to an adjacent free layer, which generates a measurable electrical voltage in a free layer of the spin transport sensor. The SAF serves as both a magnetic shield and a spin injector to the spin conductor layer.