Patent · US Expired

Magneto resistance random access memory element

US7184300B2 · kind B2 · utility

5Cited by
236References
43Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 9, 2003
Grant dateFeb 27, 2007
Priority date
Expiry dateJan 9, 2023

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG11C11/1675
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

A method to switch a scalable magnetoresistive memory cell including the steps of providing a magnetoresistive memory device sandwiched between a word line and a digit line so that current waveforms can be applied to the word and digit lines at various times to cause a magnetic field flux to rotate the effective magnetic moment vector of the device by approximately 180°. The magnetoresistive memory device includes N ferromagnetic layers that are anti-ferromagnetically coupled. N can be adjusted to change the magnetic switching volume of the device.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.