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:
Oct. 18, 2005
Filed:
Aug. 25, 2003
Bradley N. Engel, Chandler, AZ (US);
Eric J. Salter, Scottsdale, AZ (US);
Jon M. Slaughter, Tempe, AZ (US);
Bradley N. Engel, Chandler, AZ (US);
Eric J. Salter, Scottsdale, AZ (US);
Jon M. Slaughter, Tempe, AZ (US);
Freescale Semiconductor, Inc., Austin, TX (US);
Abstract
A method to switch a scalable magnetoresistive memory cell including the steps of providing a magnetoresistive memory device () having two bits () and () sandwiched between a word line () and a digit line () so that current waveforms () and () can be applied to the word and digit lines at various times to cause a magnetic field flux Hand Hto rotate the effective magnetic moment vectors () and () of the device () by approximately 180°. Each bit includes N ferromagnetic layers () and () and () and (and) that are anti-ferromagnetically coupled. N can be adjusted to change the magnetic switching volume of the bit. One or both bits may be programmed by adjusting the current in the word and/or digit lines.