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.

Date of Patent:
Nov. 27, 2018

Filed:

Dec. 30, 2017
Applicant:

Spin Transfer Technologies, Inc., Fremont, CA (US);

Inventors:

Manfred Ernst Schabes, Saratoga, CA (US);

Mustafa Michael Pinarbasi, Morgan Hill, CA (US);

Bartlomiej Adam Kardasz, Pleasanton, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 43/02 (2006.01); H01F 10/32 (2006.01); G11C 11/16 (2006.01); H01L 43/08 (2006.01); H01L 43/10 (2006.01); H01L 43/12 (2006.01); H01L 27/22 (2006.01);
U.S. Cl.
CPC ...
H01L 43/02 (2013.01); G11C 11/161 (2013.01); H01F 10/329 (2013.01); H01F 10/3254 (2013.01); H01F 10/3272 (2013.01); H01F 10/3286 (2013.01); H01L 27/222 (2013.01); H01L 43/08 (2013.01); H01L 43/10 (2013.01); H01L 43/12 (2013.01);
Abstract

A magnetoresistive random-access memory (MRAM) is disclosed. The MRAM device includes a perpendicular magnetic tunnel junction device having a reference layer, a free layer, and a precessional spin current magnetic layer. The precessional spin current magnetic layer has a central axis that is offset from a central axis of the free layer. The device is designed to provide control over the injection of stray fields and the electronic coupling between the precessional spin current magnetic layer and the free layer. Switching speed, switching current, and thermal barrier height for the device can be adjusted. The off-center design may be used to adjust the location of the stray-field injection in the free layer.


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