Production of a device comprising magnetic structures formed on one and the same substrate and having respective different magnetization orientations
US8048686B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 17, 2010 |
| Grant date | Nov 1, 2011 |
| Priority date | — |
| Expiry date | Dec 17, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1143
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a method for producing a device comprising magnetic blocks magnetized in different directions, comprising steps of:a) forming, in a stack of one or more layers of at least one antiferromagnetic material and one or more layers of at least one ferromagnetic material resting on a substrate, at least one first block and at least one second block, said blocks being longilineal and separate and extending respectively in a first main direction and in a second main direction, the first and the second main direction forming between them a first non-zero angle α,b) annealing said blocks at a temperature greater than the ordering temperature of said antiferromagnetic material or than the blocking temperature or than the Néel temperature of said antiferromagnetic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.