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:
Aug. 31, 2004
Filed:
Apr. 26, 2002
Toshio Sunaga, Ohtsu, JP;
Hisatada Miyatake, Ohtsu, JP;
Koji Kitamura, Shiga-ken, JP;
Hideo Asano, Machida, JP;
Kohki Noda, Fujisawa, JP;
Hiroshi Umezaki, Fujisawa, JP;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A magnetic random access memory (MRAM) circuit block and access method thereof are disclosed herein which includes a circuit for sensing a data write current passing through a bitline and, for generating a stop signal for stopping a data write current supply to the bitline and a write wordline after data is written in an magnetic tunnel junction (MTJ) element . Further, when data to be written to the storage element is the same as the data already stored therein, no write current is supplied to the write wordline , thereby saving power.