JP6089272B2 - 3軸磁場センサー - Google Patents
3軸磁場センサー Download PDFInfo
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- JP6089272B2 JP6089272B2 JP2012531101A JP2012531101A JP6089272B2 JP 6089272 B2 JP6089272 B2 JP 6089272B2 JP 2012531101 A JP2012531101 A JP 2012531101A JP 2012531101 A JP2012531101 A JP 2012531101A JP 6089272 B2 JP6089272 B2 JP 6089272B2
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y25/00—Nanomagnetism, e.g. magnetoimpedance, anisotropic magnetoresistance, giant magnetoresistance or tunneling magnetoresistance
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
- G01R33/09—Magnetoresistive devices
- G01R33/093—Magnetoresistive devices using multilayer structures, e.g. giant magnetoresistance sensors
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B61/00—Magnetic memory devices, e.g. magnetoresistive RAM [MRAM] devices
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N50/00—Galvanomagnetic devices
- H10N50/10—Magnetoresistive devices
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N59/00—Integrated devices, or assemblies of multiple devices, comprising at least one galvanomagnetic or Hall-effect element covered by groups H10N50/00 - H10N52/00
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Measuring Magnetic Variables (AREA)
- Hall/Mr Elements (AREA)
Description
以下では、本発明の実施形態が以下の図面と関連付けて説明され、図面において同様の参照符号は同様の要素を表わす。
Claims (2)
- 強磁性薄膜ベースの磁場センサーであって、
前記センサーの平面に直交する磁場を検知するホイートストンブリッジとして結合された第1、第2、第3、および第4の磁気トンネル接合センサーを備える第1のブリッジ回路を備え、
前記第1の磁気トンネル接合センサーは、
第1の基準層と、
前記第1の基準層に形成され、第1および第2の端部と第1および第2の面を有する第1の検知素子と、
前記第1の検知素子の第1の端部から離間して配置された第1の磁束ガイドであって、第1の面と直交する平面内に配置された前記第1の磁束ガイドとを含み、
前記第2の磁気トンネル接合センサーは、
第2の基準層と、
前記第2の基準層に形成され、第1および第2の端部と第1および第2の面を有する第2の検知素子と、
前記第2の検知素子の第1の端部から離間して配置された第2の磁束ガイドであって、第1の面と直交する平面内に配置された前記第2の磁束ガイドとを含み、
前記第3の磁気トンネル接合センサーは、
第3の基準層と、
前記第3の基準層に形成され、第1および第2の端部と第1および第2の面を有する第3の検知素子と、
前記第3の検知素子の第1の端部から離間して配置された第3の磁束ガイドであって、第1の面と直交する平面内に配置された前記第3の磁束ガイドとを含み、
前記第4の磁気トンネル接合センサーは、
第4の基準層と、
前記第4の基準層に形成され、第1および第2の端部と第1および第2の面を有する第4の検知素子と、
前記第4の検知素子の第1の端部から離間して配置された第4の磁束ガイドであって、第1の面と直交する平面内に配置された前記第4の磁束ガイドとを含み、
前記第1の磁束ガイドおよび前記第3の磁束ガイドは、前記第1、第2、第3、及び第4の磁気トンネル接合センサーの平面に磁場を案内して、前記第1の検知素子および前記第3の検知素子の磁化をより高い抵抗に向かう第1の磁化方向に回転させるように設置され、
前記第2の磁束ガイドおよび前記第4の磁束ガイドは、前記第1、第2、第3、及び第4の磁気トンネル接合センサーの平面に磁場を案内して、前記第2の検知素子および前記第4の検知素子の磁化をより低い抵抗に向かう前記第1の磁化方向とは反対の第2の磁化方向に回転させるように設置されている、強磁性薄膜ベースの磁場センサー。 - 前記第1のブリッジ回路は、第1の成分方向の磁場を検知するものであり、
前記強磁性薄膜ベースの磁場センサーは、
前記第1の成分方向に直交する第2の成分方向の磁場を検知する第2のホイートストンブリッジとして結合された第5、第6、第7、および第8の磁気トンネル接合センサーを含む第2のブリッジ回路と、
前記第1の成分方向および前記第2の成分方向に直交する第3の成分方向の磁場を検知する第3のホイートストンブリッジとして結合された第9、第10、第11、および第12の磁気トンネル接合センサーを含む第3のブリッジ回路と、
をさらに備える、請求項1に記載の強磁性薄膜ベースの磁場センサー。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/567,496 US8390283B2 (en) | 2009-09-25 | 2009-09-25 | Three axis magnetic field sensor |
US12/567,496 | 2009-09-25 | ||
PCT/US2010/050398 WO2011038343A1 (en) | 2009-09-25 | 2010-09-27 | Three axis magnetic field sensor |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2015233282A Division JP6127333B2 (ja) | 2009-09-25 | 2015-11-30 | 3軸磁場センサー |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2013506141A JP2013506141A (ja) | 2013-02-21 |
JP2013506141A5 JP2013506141A5 (ja) | 2013-11-14 |
JP6089272B2 true JP6089272B2 (ja) | 2017-03-08 |
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ID=43779581
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Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012531101A Active JP6089272B2 (ja) | 2009-09-25 | 2010-09-27 | 3軸磁場センサー |
JP2015233282A Active JP6127333B2 (ja) | 2009-09-25 | 2015-11-30 | 3軸磁場センサー |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2015233282A Active JP6127333B2 (ja) | 2009-09-25 | 2015-11-30 | 3軸磁場センサー |
Country Status (8)
Country | Link |
---|---|
US (4) | US8390283B2 (ja) |
JP (2) | JP6089272B2 (ja) |
KR (1) | KR101849516B1 (ja) |
CN (1) | CN102292773B (ja) |
DE (1) | DE112010003775B4 (ja) |
SM (1) | SMP201100062B (ja) |
TW (2) | TWI591361B (ja) |
WO (1) | WO2011038343A1 (ja) |
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CN102292773A (zh) | 2011-12-21 |
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JP2013506141A (ja) | 2013-02-21 |
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KR20120066612A (ko) | 2012-06-22 |
DE112010003775B4 (de) | 2021-11-25 |
CN102292773B (zh) | 2015-11-25 |
USRE49404E1 (en) | 2023-01-31 |
TW201133016A (en) | 2011-10-01 |
WO2011038343A1 (en) | 2011-03-31 |
US8390283B2 (en) | 2013-03-05 |
TWI497097B (zh) | 2015-08-21 |
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