Magnetoresistive element and method of manufacturing such, and position detection device
AssigneeTDK Corporation
InventorNaoki Ohta
Life of this patent
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Abstract
A magnetoresistive element is provided with a plurality of magnetoresistive laminated bodies arranged in an array and a plurality of lead electrodes that electrically connect the plurality of magnetoresistive laminated bodies in series. A first lead electrode electrically connected to a first surface in the lamination direction of a first magnetoresistive laminated body among the plurality of magnetoresistive laminated bodies and a second lead electrode electrically connected to a first surface in the lamination direction of a second magnetoresistive laminated body adjacent in the series direction are electrically connected without a magnetoresistive laminated body being interposed in between.
Claims18
A magnetoresistive element comprising:
- a plurality of magnetoresistive laminated bodies arranged in an array;
- and
- a plurality of lead electrodes that electrically connect the plurality of magnetoresistive laminated bodies;
- wherein the plurality of magnetoresistive laminated bodies includes a first magnetoresistive laminated body and a second magnetoresistive laminated body;
- the plurality of magnetoresistive laminated bodies include a first surface, which is positioned above the lamination direction of the magnetoresistive laminated body, and a second surface, which is positioned below the lamination direction of the magnetoresistive laminated body, respectively;
- the plurality of lead electrodes include a top lead electrode, which is electrically connected to the first surfaces of the adjacent magnetoresistive laminated bodies, and a bottom lead electrode, which are electrically connected to the second surfaces of the adjacent magnetoresistive laminated bodies;
- the top lead electrode include a first top lead electrode, which is electrically connected to the first surface of the first magnetoresistive laminated body, and a second top lead electrode, which is electrically connected to the first surface of the second magnetoresistive laminated body;
- the second top lead electrode is positioned substantially coplanar with the first top lead electrode;
- and
- the first top lead electrode and the second top lead electrode are electrically connected without the magnetoresistive laminated body being interposed between the first top lead electrode and the second top lead electrode.
A position detection device comprising:
- a magnetic sensor unit that outputs a sensor signal based on changes in an external magnetic field accompanying movements of a moving body;
- and
- a position detection unit that detects the position of the moving body, based on the sensor signal output from the magnetic sensor unit;
- wherein the magnetic sensor unit includes a magnetoresistive element that comprises a plurality of magnetoresistive laminated bodies arranged in an array;
- and a plurality of lead electrodes that electrically connect the plurality of magnetoresistive laminated bodies;
- the plurality of magnetoresistive laminated bodies includes a first magnetoresistive laminated body and a second magnetoresistive laminated body;
- the plurality of lead electrodes includes a first lead electrode, which is electrically connected to a first surface in the lamination direction of the first magnetoresistive laminated body, and a second lead electrode, which is electrically connected to the first surface in the lamination direction of the second magnetoresistive laminated body;
- the second lead electrode is positioned substantially coplanar with the first lead electrode;
- and
- the first lead electrode and the second lead electrode are electrically connected without the magnetoresistive body being interposed between the first lead electrode and the second lead electrode.
Dependencies are inferred from the claim text.