Magnetic sensor for improving hysteresis and linearity
US9261570B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2012 |
| Grant date | Feb 16, 2016 |
| Priority date | — |
| Expiry date | Oct 17, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N50/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A magnetic sensor includes a non-bias structure element section that has a laminated structure in which a fixed magnetic layer, a non-magnetic material layer, a free magnetic layer, and a protection layer are laminated, and that is extended in an X1-X2 direction; and soft magnetic bodies that are arranged on the element section in a contactless manner. The soft magnetic bodies include a first section, a second section, and a third section. The second section is located on a Y2 side of the element section and the third section is located on a Y1 side thereof. The second section of one of soft magnetic bodies faces the third section of the other soft magnetic body in a Y1-Y2 direction through the element section. An electrode layer is provided on the element section which faces the joint sections of the second section and the third section in the Y1-Y2 direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.