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:
Apr. 23, 2013
Filed:
Sep. 29, 2011
Xiaohua Lou, Bloomington, MN (US);
Yuankai Zheng, Bloomington, MN (US);
Wenzhong Zhu, Apple Valley, MN (US);
Wei Tian, Bloomington, MN (US);
Zheng Gao, San Jose, CA (US);
Xiaohua Lou, Bloomington, MN (US);
Yuankai Zheng, Bloomington, MN (US);
Wenzhong Zhu, Apple Valley, MN (US);
Wei Tian, Bloomington, MN (US);
Zheng Gao, San Jose, CA (US);
Seagate Technology LLC, Scotts Valley, CA (US);
Abstract
A magnetic stack having a ferromagnetic free layer, a metal oxide layer that is antiferromagnetic at a first temperature and non-magnetic at a second temperature higher than the first temperature, a ferromagnetic pinned reference layer, and a non-magnetic spacer layer between the free layer and the reference layer. During a writing process, the metal oxide layer is non-magnetic. For magnetic memory cells, such as magnetic tunnel junction cells, the metal oxide layer provides reduced switching currents.