JP2018189388A - 磁界センサ - Google Patents
磁界センサ Download PDFInfo
- Publication number
- JP2018189388A JP2018189388A JP2017089391A JP2017089391A JP2018189388A JP 2018189388 A JP2018189388 A JP 2018189388A JP 2017089391 A JP2017089391 A JP 2017089391A JP 2017089391 A JP2017089391 A JP 2017089391A JP 2018189388 A JP2018189388 A JP 2018189388A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- sensor
- sensor chip
- unit
- detection element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims abstract description 59
- 230000004907 flux Effects 0.000 claims abstract description 11
- 239000000696 magnetic material Substances 0.000 claims abstract description 6
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 239000000758 substrate Substances 0.000 abstract description 9
- 230000005389 magnetism Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 230000005415 magnetization Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- 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
Abstract
Description
20 基板
21 実装領域
22 端子電極
30 センサチップ
31 素子形成面
32 端子電極
40 磁性体
50 非磁性部材
100,200 磁気センサ
110 検出ヘッド
120 筐体
BW ボンディングワイヤ
G ギャップ
R1〜R4 磁気検出素子
Claims (3)
- 所定の方向に配列された複数の単位磁気センサを備え、
前記複数の単位磁気センサのそれぞれは、磁気検出素子が形成された素子形成面を有するセンサチップと、前記素子形成面上に配置され、磁束を前記磁気検出素子に集める磁性体とを含み、
前記磁性体の前記所定の方向における長さは、前記センサチップの前記所定の方向における長さよりも長いことを特徴とする磁気センサ。 - 前記磁気検出素子は、第1及び第2の磁気検出素子を含み、
前記磁性体は、前記第1の磁気検出素子と前記第2の磁気検出素子の間に配置されていることを特徴とする請求項1に記載の磁気センサ。 - 前記所定の方向に隣接する前記磁性体同士を固定する非磁性部材をさらに備えることを特徴とする請求項1又は2に記載の磁気センサ。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017089391A JP2018189388A (ja) | 2017-04-28 | 2017-04-28 | 磁界センサ |
CN201880027973.0A CN110546524A (zh) | 2017-04-28 | 2018-03-26 | 磁场传感器 |
PCT/JP2018/011971 WO2018198627A1 (ja) | 2017-04-28 | 2018-03-26 | 磁界センサ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017089391A JP2018189388A (ja) | 2017-04-28 | 2017-04-28 | 磁界センサ |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2018189388A true JP2018189388A (ja) | 2018-11-29 |
Family
ID=63920440
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017089391A Pending JP2018189388A (ja) | 2017-04-28 | 2017-04-28 | 磁界センサ |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP2018189388A (ja) |
CN (1) | CN110546524A (ja) |
WO (1) | WO2018198627A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7455511B2 (ja) * | 2019-02-25 | 2024-03-26 | Tdk株式会社 | 磁気センサ及びその製造方法 |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05332703A (ja) * | 1992-06-04 | 1993-12-14 | Murata Mfg Co Ltd | 長尺型磁気センサ |
JPH10293121A (ja) * | 1997-04-17 | 1998-11-04 | Sumitomo Metal Ind Ltd | 微小きずの検出性能に優れた磁気探傷センサ |
JP2002195984A (ja) * | 2000-10-18 | 2002-07-10 | Kawasaki Steel Corp | 磁気探傷装置の漏洩磁気検出センサ |
JP2005300228A (ja) * | 2004-04-07 | 2005-10-27 | Murata Mfg Co Ltd | 長尺型磁気センサ |
WO2013121870A1 (ja) * | 2012-02-13 | 2013-08-22 | 株式会社村田製作所 | 磁気センサ装置 |
US20150300840A1 (en) * | 2012-11-29 | 2015-10-22 | International Business Machines Corporation | Position sensor |
JP2015230211A (ja) * | 2014-06-04 | 2015-12-21 | Tdk株式会社 | 磁気センサ及びその製造方法、並びにそれを用いた計測機器 |
WO2016080470A1 (ja) * | 2014-11-18 | 2016-05-26 | 日立金属株式会社 | 磁気センサ及びその製造方法並びにそれを用いた電流量検出器 |
JP2016173317A (ja) * | 2015-03-17 | 2016-09-29 | エスアイアイ・セミコンダクタ株式会社 | 半導体装置 |
US20160377691A1 (en) * | 2015-06-26 | 2016-12-29 | Stmicroelectronics S.R.L. | Integrated amr magnetoresistor with large scale |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9411024B2 (en) * | 2012-04-20 | 2016-08-09 | Infineon Technologies Ag | Magnetic field sensor having XMR elements in a full bridge circuit having diagonal elements sharing a same shape anisotropy |
CN103852592A (zh) * | 2012-12-05 | 2014-06-11 | 北京嘉岳同乐极电子有限公司 | 磁传感器芯片、磁传感器、测速方法及测距方法 |
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2017
- 2017-04-28 JP JP2017089391A patent/JP2018189388A/ja active Pending
-
2018
- 2018-03-26 CN CN201880027973.0A patent/CN110546524A/zh active Pending
- 2018-03-26 WO PCT/JP2018/011971 patent/WO2018198627A1/ja active Application Filing
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05332703A (ja) * | 1992-06-04 | 1993-12-14 | Murata Mfg Co Ltd | 長尺型磁気センサ |
JPH10293121A (ja) * | 1997-04-17 | 1998-11-04 | Sumitomo Metal Ind Ltd | 微小きずの検出性能に優れた磁気探傷センサ |
JP2002195984A (ja) * | 2000-10-18 | 2002-07-10 | Kawasaki Steel Corp | 磁気探傷装置の漏洩磁気検出センサ |
JP2005300228A (ja) * | 2004-04-07 | 2005-10-27 | Murata Mfg Co Ltd | 長尺型磁気センサ |
WO2013121870A1 (ja) * | 2012-02-13 | 2013-08-22 | 株式会社村田製作所 | 磁気センサ装置 |
US20150300840A1 (en) * | 2012-11-29 | 2015-10-22 | International Business Machines Corporation | Position sensor |
JP2015230211A (ja) * | 2014-06-04 | 2015-12-21 | Tdk株式会社 | 磁気センサ及びその製造方法、並びにそれを用いた計測機器 |
WO2016080470A1 (ja) * | 2014-11-18 | 2016-05-26 | 日立金属株式会社 | 磁気センサ及びその製造方法並びにそれを用いた電流量検出器 |
JP2016173317A (ja) * | 2015-03-17 | 2016-09-29 | エスアイアイ・セミコンダクタ株式会社 | 半導体装置 |
US20160377691A1 (en) * | 2015-06-26 | 2016-12-29 | Stmicroelectronics S.R.L. | Integrated amr magnetoresistor with large scale |
Also Published As
Publication number | Publication date |
---|---|
CN110546524A (zh) | 2019-12-06 |
WO2018198627A1 (ja) | 2018-11-01 |
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