Patent · US Expired

Opposed field magnetoresistive memory sensing

US5012444A · kind A · utility

16Cited by
4References
36Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 4, 1990
Grant dateApr 30, 1991
Priority date
Expiry dateApr 4, 2010

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG11C11/15
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

A method for sensing magnetic states of magnetic bit structures formed of separated double layer, magnetoresistive, ferromagnetic memory films through providing a word line current in a direction which results in a magnetic field due thereto, in the memory films of these bit structures, that is oriented in a direction opposite a common direction followed at least partially by orientations of edge magnetizations in these films that are parallel to the edges thereof, and sensing a change in electrical resistance of these bit structures as a result of that current.

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