Title:
MAGNETIC SENSOR
Document Type and Number:
WIPO Patent Application WO/2013/057863
Kind Code:
A1
Abstract:
This magnetic sensor is provided with a detection unit (10) which comprises first and second magnetoresistive elements (R1, R2). Each of the first and second magnetoresistive elements (R1, R2) has a pinned layer (11) wherein the magnetization direction is fixed in a predetermined direction and a free layer (13) wherein the magnetization direction changes in accordance with the external magnetic field. The resistance of each of the first and second magnetoresistive elements (R1, R2) changes in accordance with the angle between the magnetization direction of the pinned layer (11) and the magnetization direction of the free layer (13). The first and second magnetoresistive elements (R1, R2) are connected in series with each other such that the magnetization directions of the respective pinned layers (11) are perpendicular to each other. The detection unit (10) outputs the midpoint voltage of the first and second magnetoresistive elements (R1, R2) as a detection signal.
Inventors:
KURUMADO NORIHIRO (JP)
Application Number:
PCT/JP2012/005385
Publication Date:
April 25, 2013
Filing Date:
August 28, 2012
Export Citation:
Assignee:
DENSO CORP (JP)
KURUMADO NORIHIRO (JP)
KURUMADO NORIHIRO (JP)
International Classes:
G01R33/09; H01L43/08
Foreign References:
| JP2009085953A | 2009-04-23 | |||
| JP2007024598A | 2007-02-01 | |||
| JP2008209317A | 2008-09-11 | |||
| JPH1070325A | 1998-03-10 | |||
| JP2001159542A | 2001-06-12 |
Attorney, Agent or Firm:
KIN, Junhi (JP)
Gold Junki (JP)
Gold Junki (JP)
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Claims: