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:
Oct. 08, 2024

Filed:

Feb. 18, 2022
Applicant:

Samsung Electronics Co., Ltd., Suwon-si, KR;

Inventors:

Roman Chepulskyy, Santa Clara, CA (US);

Dmytro Apalkov, San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/50 (2006.01); H10B 61/00 (2023.01); H10N 50/85 (2023.01);
U.S. Cl.
CPC ...
H10N 50/85 (2023.02); H10B 61/00 (2023.02);
Abstract

A magnetoresistive tunnel-junction (MTJ) memory element includes a magnetic reference layer (RL), a magnetic free layer (FL), a tunneling barrier layer, which extends between the magnetic RL and the magnetic FL, and a diffusion-blocking layer (DBL), which extends on the magnetic FL. The includes at least one material selected from a group consisting of bismuth (Bi), antimony (Sb), osmium (Os), rhenium (Re), tin (Sn), rhodium (Rh), indium (In), and cadmium (Cd). An oxide capping layer is also provided on the DBL. The oxide layer may include at least one of strontium (Sr), scandium (Sc), beryllium (Be), calcium (Ca), yttrium (Y), zirconium (Zr), and hafnium (Hf).


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