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:
May. 19, 2009
Filed:
Oct. 03, 2007
Applicant:
Keiji Koga, Tokyo, JP;
Inventor:
Keiji Koga, Tokyo, JP;
Assignee:
TDK Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
To provide a magnetic memory capable of reducing the amount of write current, even when the element size is 0.7 μm or less. Each of storage areas has a transistor for read/write control, which is connected electrically to either one of the fixed layer and the free layer of each magneto-resistance effect element, a wiring that is electrically connected to the other one of the fixed layer and the free layer of each magneto-resistance effect element, and a magnetic yoke that surrounds the wiring and provides a magnetic field to the free layer, and the number of the transistors within each storage area is one.