Patent · US Active

Magnetic tracks with domain wall storage anchors

US8102691B2 · kind B2 · utility

7Cited by

6References

24Claims

0Family size

Assignee

Seagate Technology LLC · US

Inventors

Haiwen Xi · Prior Lake, US
Xiaobin Wang · Chanhassen, US
Dimitar V. Dimitrov · Edina, US
Paul E. Anderson · Eden Prairie, US
Harry Hongyue Liu · Maple Grove, US
Song S. Xue · Morristown, US
Andreas Roelofs · Eden Prairie, US
Markus Jan Peter Siegert · Minneapolis, US

Key dates

Filing date	Jun 24, 2008
Grant date	Jan 24, 2012
Priority date	—
Expiry date	Jul 28, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S977/933
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Magnetic shift registers in which data writing and reading is accomplished by moving the magnetic domain walls by electric current. Various embodiments of domain wall nodes or anchors that stabilize a domain wall are provided. In some embodiments, the wall anchors are elements separate from the magnetic track. In other embodiments, the wall anchors are disturbances in the physical configuration of the magnetic track. In still other embodiments, the wall anchors are disturbances in the material of the magnetic track.

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