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:
Feb. 02, 2010
Filed:
Apr. 07, 2005
Applicants:
Ryonosuke Tera, Toyota, JP;
Inao Toyoda, Anjo, JP;
Yasutoshi Suzuki, Okazaki, JP;
Inventors:
Assignee:
DENSO CORPORATION, Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/39 (2006.01);
U.S. Cl.
CPC ...
Abstract
The TMR device has a structure including a lower electrode layer, a pinned layer, a tunnel barrier layer, a free layer, and an upper electrode layer which are successively formed on a substrate. The tunnel barrier layer has substantially a stoichiometric composition. The tunnel barrier layer may be a thin film of an oxide of AL formed by ALD method.