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:
Jan. 07, 2020

Filed:

Sep. 21, 2017
Applicant:

Globalfoundries Singapore Pte. Ltd., Singapore, SG;

Inventors:

Kazutaka Yamane, Singapore, SG;

Seungmo Noh, Singapore, SG;

Kangho Lee, Singapore, SG;

Vinayak Bharat Naik, Singapore, SG;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 43/08 (2006.01); H01L 43/12 (2006.01); G11C 11/16 (2006.01); H01L 43/10 (2006.01); H01L 27/22 (2006.01); H01L 43/02 (2006.01);
U.S. Cl.
CPC ...
H01L 43/08 (2013.01); G11C 11/161 (2013.01); H01L 27/228 (2013.01); H01L 43/02 (2013.01); H01L 43/10 (2013.01); H01L 43/12 (2013.01);
Abstract

A magnetic tunneling junction (MTJ) with a free layer that is less temperature sensitive and is reflow compatible at 260° C. The magnetic free layer may include various configurations, such as a single as-deposited crystalline magnetic layer or a composite free layer with more than one magnetic layers or a combination of composite and single magnetic layers. The layers of the composite magnetic free layer may include as-deposited crystalline magnetic free layers or a combination of as-deposited crystalline and as-deposited amorphous magnetic layers, with or without a spacer layer. An interface layer may be provided at an interface between the free layer and adjacent layer to apply tensile stress on the free layer in the direction perpendicular to the in-plane direction to enhance perpendicular magnetic anisotropy (PMA) of the free layer.


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