Stabilization of GMR devices
US6455177B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 1999 |
| Grant date | Sep 24, 2002 |
| Priority date | — |
| Expiry date | Dec 3, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12514
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A stabilized GMR device includes a GMR stack having a first and a second edge. Stabilization means are positioned adjacent to the first and the second edge of the GMR stack for stabilizing the GMR stack. The GMR stack includes a first layer of ferromagnetic material and a second layer of ferromagnetic material. A spacer layer is positioned between the first and the second ferromagnetic layers. A buffer layer is positioned adjacent to the first magnetic layer and a cap layer is positioned adjacent to the second ferromagnetic layer. The stabilization means include a first coupler layer positioned adjacent to the first edge of the GMR stack and a second coupler layer positioned adjacent to the second edge of the GMR stack. The stabilization means also include a first ferromagnetic layer positioned adjacent to the first coupler layer and a second ferromagnetic layer positioned adjacent to the second coupler layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.