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:
Jun. 01, 2004
Filed:
Jun. 28, 2002
Applicant:
Inventors:
Brad J. Garni, Austin, TX (US);
Thomas W. Andre, Austin, TX (US);
Joseph J. Nahas, Austin, TX (US);
Chitra K. Subramanian, Austin, TX (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 1/115 ;
U.S. Cl.
CPC ...
G11C 1/115 ;
Abstract
A MRAM toggle type memory cell is read by first providing a first signal representative of the initial state to a sense amplifier ( ). A resistance of the cell is temporarily changed by altering a magnetic polarization of the free layer of the cell. A second signal responsive to altering the resistance of the MRAM cell is provided to the sense amplifier ( ). The first signal is compared to the second signal to determine the state of the MRAM cell.