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. 09, 2013
Filed:
Jan. 20, 2012
Dimitar V. Dimitrov, Edina, MN (US);
Zheng Gao, Savage, MN (US);
Wonjoon Jung, Bloomington, MN (US);
Paul Edward Anderson, Eden Prairie, MN (US);
Olle Gunnar Heinonen, Eden Prairie, MN (US);
Dimitar V. Dimitrov, Edina, MN (US);
Zheng Gao, Savage, MN (US);
Wonjoon Jung, Bloomington, MN (US);
Paul Edward Anderson, Eden Prairie, MN (US);
Olle Gunnar Heinonen, Eden Prairie, MN (US);
Seagate Technology LLC, Scotts Valley, CA (US);
Abstract
A tunneling magneto-resistive reader includes a sensor stack separating a top magnetic shield from a bottom magnetic shield. The sensor stack includes a reference magnetic element having a reference magnetization orientation direction and a free magnetic element having a free magnetization orientation direction substantially perpendicular to the reference magnetization orientation direction. A non-magnetic spacer layer separates the reference magnetic element from the free magnetic element. A first side magnetic shield and a second side magnetic shield is disposed between the top magnetic shield from a bottom magnetic shield, and the sensor stack is between the first side magnetic shield and the second side magnetic shield. The first side magnetic shield and the second side magnetic shield electrically insulates the top magnetic shield from a bottom magnetic shield.