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. 27, 2010
Filed:
Mar. 17, 2006
Yoshishige Suzuki, Ibaraki, JP;
Shinji Yuasa, Ibaraki, JP;
Akio Fukushima, Ibaraki, JP;
Ashwin Tulapurkar, Menlo Park, CA (US);
Yoshishige Suzuki, Ibaraki, JP;
Shinji Yuasa, Ibaraki, JP;
Akio Fukushima, Ibaraki, JP;
Ashwin Tulapurkar, Menlo Park, CA (US);
Japan Science and Technology Agency, Saitama, JP;
Abstract
A strip line integrated microwave generating element and a microwave detecting element comprises a signal electrode and a ground electrode. The element has a magnetic tunnel junction structure which includes a magnetization fixed layer, a MgO tunnel barrier layer, and a magnetization free layer. The magnetization free layer is 200 nm square or smaller in a cross-sectional area. The magnetization fixed layer is in contact with either one of the signal electrode and the ground electrode while the magnetization free layer of the element being in contact with the other. The element is smaller than the electrodes and mounted on a part of the signal electrode or the ground electrode. A MR ratio of the element is of 100% or more. A resistance value of the element is from 50Ω to 300Ω. The resistance of the element is matched with an impedance of the microwave transmission line.