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:
Nov. 16, 2021
Filed:
Jun. 07, 2018
Applicant:
International Business Machines Corporation, Armonk, NY (US);
Inventors:
Ching-Tzu Chen, Ossining, NY (US);
See-Hun Yang, San Jose, CA (US);
Assignee:
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H01L 43/08 (2006.01); H01L 27/22 (2006.01); G11C 11/16 (2006.01); G11C 11/54 (2006.01); H01L 43/12 (2006.01); H01L 43/10 (2006.01); H01F 10/32 (2006.01); G06N 3/063 (2006.01);
U.S. Cl.
CPC ...
H01L 43/08 (2013.01); G06N 3/0635 (2013.01); G11C 11/161 (2013.01); G11C 11/54 (2013.01); H01F 10/3254 (2013.01); H01F 10/3272 (2013.01); H01F 10/3286 (2013.01); H01L 27/226 (2013.01); H01L 43/10 (2013.01); H01L 43/12 (2013.01);
Abstract
A synapse device includes a perpendicularly magnetized ferrimagnetic racetrack layer, a tunneling barrier layer disposed on the racetrack layer and a reference layer including a perpendicular magnetic alloy. The racetrack layer, the tunneling layer and the reference layer have a channel portion and contact pad portions. First and second contacts are provided over the contact pad portions, and a third contact is provided over the channel portion, wherein the first and second contacts are electrically isolated from the third contact.