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:
Oct. 29, 2019
Filed:
Dec. 30, 2017
Spin Memory, Inc.;
Bartlomiej Adam Kardasz, Pleasanton, CA (US);
Jorge Vasquez, San Jose, CA (US);
Mustafa Pinarbasi, Morgan Hill, CA (US);
Georg Wolf, San Francisco, CA (US);
SPIN MEMORY, INC., Fremont, CA (US);
Abstract
A magnetic memory element for Magnetic Random Access Memory. The magnetic memory element has improved reference layer magnetic pinning. The magnetic memory element has a magnetic free layer, a magnetic reference layer and a non-magnetic barrier layer located between the magnetic free layer and the magnetic reference layer. The magnetic reference layer has a magnetic moment that is pinned in a perpendicular orientation through exchange coupling with a synthetic antiferromagnetic structure that includes first and second magnetic structures and an antiferromagnetic exchange coupling structure located between the first and second magnetic structures. The antiferromagnetic exchange coupling structure includes a layer of Ru located between first and second layers of Pt. The Pt layers in the antiferromagnetic exchange coupling structure advantageously increases the magnetic proximity effect at both Ru interfaces, which extends the exchange coupling range of the antiferromagnetic exchange coupling layer.