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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.:

US 11585013 B1

PDFFull Text
Date of Patent:
Feb. 21, 2023

Filed:

Oct. 24, 2018

Fe—co—al alloy magnetic thin film

Applicants:

The Board of Trustees of the University of Alabama, Tuscaloosa, AL (US);

Tdk Corporation, Tokyo, JP;

Inventors:

Takao Suzuki, Tuscaloosa, AL (US);

Tim Mewes, Northport, AL (US);

Gary Mankey, Tuscaloosa, AL (US);

Isao Kanada, Tokyo, JP;

Yusuke Ariake, Tokyo, JP;

Assignees:

THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ALABAMA, Tuscaloosa, AL (US);

TDK CORPORATION, Tokyo, JP;

Attorney:

Meunier Carlin & Curfman LLC

Primary Examiner:

Michael E La Villa

Int. Cl.
CPC ...
C30B 29/52 (2006.01); C30B 29/16 (2006.01); C30B 23/02 (2006.01); B32B 15/01 (2006.01); H01F 1/147 (2006.01); C22C 38/10 (2006.01); C22C 38/06 (2006.01); C23C 14/35 (2006.01); C23C 14/18 (2006.01); C22C 5/04 (2006.01); C22C 30/00 (2006.01); C23C 14/34 (2006.01); B32B 15/04 (2006.01); C23C 28/02 (2006.01); C23C 30/00 (2006.01); B32B 15/18 (2006.01); C22C 19/07 (2006.01); B32B 15/20 (2006.01);
U.S. Cl.
CPC ...
C30B 29/52 (2013.01); B32B 15/01 (2013.01); B32B 15/04 (2013.01); B32B 15/043 (2013.01); B32B 15/18 (2013.01); B32B 15/20 (2013.01); C22C 5/04 (2013.01); C22C 19/07 (2013.01); C22C 30/00 (2013.01); C22C 38/06 (2013.01); C22C 38/10 (2013.01); C23C 14/18 (2013.01); C23C 14/185 (2013.01); C23C 14/34 (2013.01); C23C 14/35 (2013.01); C23C 14/352 (2013.01); C23C 28/02 (2013.01); C23C 28/021 (2013.01); C23C 28/023 (2013.01); C23C 30/00 (2013.01); C23C 30/005 (2013.01); C30B 23/02 (2013.01); C30B 23/025 (2013.01); C30B 29/16 (2013.01); H01F 1/147 (2013.01); C22C 2202/02 (2013.01); Y10T 428/115 (2015.01); Y10T 428/1136 (2015.01); Y10T 428/1157 (2015.01); Y10T 428/1164 (2015.01); Y10T 428/12597 (2015.01); Y10T 428/12604 (2015.01); Y10T 428/12611 (2015.01); Y10T 428/12618 (2015.01); Y10T 428/12667 (2015.01); Y10T 428/12931 (2015.01); Y10T 428/12951 (2015.01); Y10T 428/2495 (2015.01); Y10T 428/24967 (2015.01); Y10T 428/26 (2015.01); Y10T 428/265 (2015.01);
Abstract

An Fe—Co—Al alloy magnetic thin film contains, in terms of atomic ratio, 20% to 30% Co and 1.5% to 2.5% Al. The Fe—Co—Al alloy magnetic thin film has a crystallographic orientation such that the (100) plane is parallel to a substrate surface and the <100> direction is perpendicular to the substrate surface. The Fe—Co—Al alloy magnetic thin film has good magnetic properties, that is, a magnetization of 1440 emu/cc or more, a coercive force of less than 100 Oe, a damping factor of less than 0.01, and an FMR linewidth ΔH at 30 GHz of less than 70 Oe.

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