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. 23, 2019
Filed:
Dec. 29, 2017
Applicant:
Spin Memory, Inc., Fremont, CA (US);
Inventors:
Michail Tzoufras, Sunnyvale, CA (US);
Marcin Jan Gajek, Berkeley, CA (US);
Kadriye Deniz Bozdag, Sunnyvale, CA (US);
Mourad El Baraji, Fremont, CA (US);
Assignee:
Spin Memory, Inc., Fremont, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/00 (2006.01); G11C 11/16 (2006.01); H01L 43/02 (2006.01);
U.S. Cl.
CPC ...
G11C 11/161 (2013.01); G11C 11/1673 (2013.01); H01L 43/02 (2013.01);
Abstract
Methods and structures useful for magnetoresistive random-access memory (MRAM) are disclosed. The MRAM device has a magnetic tunnel junction stack having a significantly improved performance of the free layer in the magnetic tunnel junction structure. The MRAM device utilizes an in-plane polarization magnetic layer and a perpendicular MTJ in conjugation with a alternating current precharge and a programming current pulse that comprises an alternating perturbation frequency and a direct current.