Title:
MAGNETIC SENSOR
Document Type and Number:
WIPO Patent Application WO/2011/089978
Kind Code:
A1
Abstract:
Disclosed is a magnetic sensor using magnetoresistance elements capable of appropriately causing external magnetic fields to flow into the magnetoresistance elements. Specifically disclosed is a magnetic sensor which comprises: a plurality of magnetoresistance elements that are formed of magnetic layers and non-magnetic layers laminated on a substrate and that exert magnetoresistance; and soft magnetic bodies (20). Each magnetoresistance element has a shape formed by connecting element portions (9) and electrode layers (10) that are alternately disposed. The soft magnetic bodies (20) are disposed at either side of the element portions (9) in the Y direction so as to be shifted in the X direction. With this, an external magnetic field (H1) traveling in the X1 direction passes through the soft magnetic bodies (20), and is converted into an external magnetic field (H2) traveling in the Y direction between the soft magnetic bodies (20). The external magnetic field (H2) flows out the soft magnetic bodies (20), and flows into the element portions (9).
Inventors:
ANDO HIDETO (JP)
SUGIHARA SHINJI (JP)
NOGUCHI TAKAFUMI (JP)
SUGIHARA SHINJI (JP)
NOGUCHI TAKAFUMI (JP)
Application Number:
PCT/JP2011/050529
Publication Date:
July 28, 2011
Filing Date:
January 14, 2011
Export Citation:
Assignee:
ALPS ELECTRIC CO LTD (JP)
ANDO HIDETO (JP)
SUGIHARA SHINJI (JP)
NOGUCHI TAKAFUMI (JP)
ANDO HIDETO (JP)
SUGIHARA SHINJI (JP)
NOGUCHI TAKAFUMI (JP)
International Classes:
G01R33/09; G01R33/02; H01L43/08
Domestic Patent References:
| WO2009048018A1 | 2009-04-16 | |||
| WO2008146809A1 | 2008-12-04 |
Foreign References:
| JP2006156661A | 2006-06-15 |
Attorney, Agent or Firm:
NOZAKI, Teruo et al. (JP)
Teruo Nozaki (JP)
Teruo Nozaki (JP)
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Claims: