Magnetic field sensor having giant magnetoresistive effect elements, manufacturing method and apparatus therefor
US6329818A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 1999 |
| Grant date | Dec 11, 2001 |
| Priority date | — |
| Expiry date | Jul 14, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/90
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention is characterized in that a first giant magnetoresistive effect element and a second giant magnetoresistive effect element are provided along a first straight line with the magnetization of the pinned magnetic layer c oriented in a fixed direction, and that a third giant magnetoresistive effect element and a fourth giant magnetoresistive effect element are provided along a second straight line, which is parallel to the first straight line, with the magnetization of the pinned magnetic layer oriented 180.degree. opposite to the directions of magnetization of the pinned magnetic layers in the first and second giant magnetoresistive effect elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.