Magnetic detection device
US7834619B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 10, 2010 |
| Grant date | Nov 16, 2010 |
| Priority date | — |
| Expiry date | Feb 10, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N50/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A magnetic detection device includes a sensor unit including a sensor pattern having a plurality of magnetoresistance effect films whose ends in the length direction thereof are coupled via return portions, and electrode units formed at both ends of the sensor pattern in the longitudinal direction thereof. A non-magnetic conductor is electrically connected across a top surface of one of a pair of magnetoresistance effect films that are coupled via the corresponding one of the return portions and that face each other and a top surface of the other magnetoresistance effect film. Therefore, the resistance value between the electrode units can be adjusted without increasing the dimensions of the sensor unit, and deterioration or variation in magnetic characteristics can be reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.