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:
May. 21, 2013
Filed:
Feb. 18, 2011
Dmytro Apalkov, San Jose, CA (US);
Xueti Tang, Fremont, CA (US);
Vladimir Nikitin, Campbell, CA (US);
Alexander A. G. Driskill-smith, Redwood City, CA (US);
Dmytro Apalkov, San Jose, CA (US);
Xueti Tang, Fremont, CA (US);
Vladimir Nikitin, Campbell, CA (US);
Alexander A. G. Driskill-Smith, Redwood City, CA (US);
Grandis, Inc., San Jose, CA (US);
Abstract
A method and system for providing a magnetic junction usable in a magnetic device are described. The magnetic junction includes a pinned layer, a plurality of nonmagnetic spacer layers, and a plurality of free layers. The free layers are interleaved with the nonmagnetic spacer layers. A first nonmagnetic spacer layer of the nonmagnetic spacer layers is between the free layers and the pinned layer. Each of the free layers is configured to be switchable between stable magnetic states when a write current is passed through the magnetic junction. Each of the free layers has a critical switching current density. The critical switching current density of one of the free layers changes monotonically from the critical switching current density of an adjacent free layer. The adjacent free layer is between the pinned layer and the one of the plurality of free layers.