Patent · US Expired

Magnetic random access memory

US7126201B2 · kind B2 · utility

20Cited by
4References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 3, 2003
Grant dateOct 24, 2006
Priority date
Expiry dateJul 3, 2023

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01F10/3272
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A technique is provided in which an offset magnetic field of a memory cell of a MRAM is reduced more effectively. The MRAM of the present invention is composed of a free layer (11) which has a reversible free spontaneous magnetization, a fixed layer (6) which has fixed spontaneous magnetization, and a spacer layer (10) formed of non-magnetic interposed between the free layer (11) and the fixed layer (6). The fixed layer (6) is formed such that orange peel effect and magneto-static coupling effect does not substantially influence on the free layer (11).

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