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. 01, 2008
Filed:
Oct. 19, 2006
Applicants:
Tsukasa Ooishi, Tokyo, JP;
Hideto Hidaka, Tokyo, JP;
Inventors:
Tsukasa Ooishi, Tokyo, JP;
Hideto Hidaka, Tokyo, JP;
Assignee:
Renesas Technology Corp., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A data write current from a pinned layer to a free layer is larger than a data write current from the free layer to the pinned layer. A data read current is smaller in value than the data write current. In the case where a difference in data read current between a high-resistance state and a low-resistance state is relatively small, a sense amplifier is connected so that the data read current flows from the pinned layer to the free layer, namely from a source line to a bit line.