JP6791183B2 - 磁気抵抗効果素子及びその製造方法、並びに位置検出装置 - Google Patents
磁気抵抗効果素子及びその製造方法、並びに位置検出装置 Download PDFInfo
- Publication number
- JP6791183B2 JP6791183B2 JP2018049267A JP2018049267A JP6791183B2 JP 6791183 B2 JP6791183 B2 JP 6791183B2 JP 2018049267 A JP2018049267 A JP 2018049267A JP 2018049267 A JP2018049267 A JP 2018049267A JP 6791183 B2 JP6791183 B2 JP 6791183B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetoresistive
- lower lead
- lead electrode
- laminate
- film
- 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.)
- Active
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 15
- 230000005291 magnetic effect Effects 0.000 claims description 119
- 230000000694 effects Effects 0.000 claims description 29
- 239000004020 conductor Substances 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 14
- 238000003801 milling Methods 0.000 claims description 13
- 238000010030 laminating Methods 0.000 claims 2
- 239000010408 film Substances 0.000 description 87
- 239000010410 layer Substances 0.000 description 67
- 238000001514 detection method Methods 0.000 description 41
- 230000005415 magnetization Effects 0.000 description 37
- 239000000758 substrate Substances 0.000 description 10
- 239000004065 semiconductor Substances 0.000 description 9
- 230000008859 change Effects 0.000 description 8
- 230000005290 antiferromagnetic effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 238000010884 ion-beam technique Methods 0.000 description 7
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000004544 sputter deposition Methods 0.000 description 5
- 239000002885 antiferromagnetic material Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 238000000206 photolithography Methods 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- -1 Co 2 MnGe Inorganic materials 0.000 description 1
- 229910003321 CoFe Inorganic materials 0.000 description 1
- 229910019236 CoFeB Inorganic materials 0.000 description 1
- 229910019233 CoFeNi Inorganic materials 0.000 description 1
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 1
- 229910017028 MnSi Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc 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
- G01R33/0094—Sensor arrays
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/16—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying resistance
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/142—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices
- G01D5/145—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices influenced by the relative movement between the Hall device and magnetic fields
-
- 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
-
- 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
- G01R33/098—Magnetoresistive devices comprising tunnel junctions, e.g. tunnel magnetoresistance sensors
-
- 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
- H10N50/01—Manufacture or treatment
-
- 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
- H10N50/00—Galvanomagnetic devices
- H10N50/80—Constructional details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
- G01D5/245—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains using a variable number of pulses in a train
- G01D5/2451—Incremental encoders
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Hall/Mr Elements (AREA)
- Measuring Magnetic Variables (AREA)
Description
まず、半導体基板4’上にAl2O3等からなる下地絶縁膜5’を成膜し(図11(A)参照)、下地絶縁膜5’上に下部リード電極31’を形成するための下部リード膜31A’(例えば、Ta/Cu/Ta等の金属積層膜)を成膜する(図11(B)参照)。下部リード電極31’に対応するレジストパターン70’を下部リード膜31A’上に形成し、イオンビームの照射によるミリング処理が行われることで、下部リード電極31’が形成される(図11(C)参照)。下部リード電極31’以外の部分は、下地絶縁膜5’を露出させるように下部リード膜31A’がミリングされる。すなわち、複数の下部リード電極31’のそれぞれが電気的に孤立した状態で形成される。
θ=atan(S1/S2)
2…磁気抵抗効果積層体
3…リード電極
31…下部リード電極
32…上部リード電極
6…帯電防止膜
100…位置検出装置
Claims (11)
- 磁気抵抗効果積層体と、
前記磁気抵抗効果積層体に電流を供給するための下部リード電極及び上部リード電極と、
前記下部リード電極を他の導体に電気的に接続する帯電防止膜と
を備え、
前記下部リード電極は、少なくとも第1導電層及び第2導電層がこの順で積層されてなる積層体であり、
前記帯電防止膜は、前記第1導電層と同一種類の導電材料を含むことを特徴とする磁気抵抗効果素子。 - 前記磁気抵抗効果素子は、複数の前記磁気抵抗効果積層体と、前記複数の磁気抵抗効果積層体を電気的に直列に接続する複数の前記下部リード電極及び複数の前記上部リード電極とを備えており、
前記帯電防止膜は、前記複数の下部リード電極同士を電気的に接続する
ことを特徴とする請求項1に記載の磁気抵抗効果素子。 - 磁気抵抗効果積層体と、
前記磁気抵抗効果積層体に電流を供給するための下部リード電極及び上部リード電極と、
前記下部リード電極を他の導体に電気的に接続する帯電防止膜と
を備える磁気抵抗効果素子であって、
前記磁気抵抗効果素子は、複数の前記磁気抵抗効果積層体と、前記複数の磁気抵抗効果積層体を電気的に直列に接続する複数の前記下部リード電極及び複数の前記上部リード電極とを備えており、
前記帯電防止膜は、前記複数の下部リード電極同士を電気的に接続する
ことを特徴とする磁気抵抗効果素子。 - 前記複数の下部リード電極は、前記帯電防止膜を介して実質的に全面で電気的に接続されていることを特徴とする請求項2又は3に記載の磁気抵抗効果素子。
- 前記帯電防止膜は、前記第1導電層と同一種類の導電材料の酸化物を含むことを特徴とする請求項1又は2に記載の磁気抵抗効果素子。
- 前記帯電防止膜の抵抗値が、前記磁気抵抗効果積層体の抵抗値よりも大きいことを特徴とする請求項1〜5のいずれかに記載の磁気抵抗効果素子。
- 前記磁気抵抗効果積層体が、TMR積層体であることを特徴とする請求項1〜6のいずれかに記載の磁気抵抗効果素子。
- 移動体の移動に伴う外部磁場の変化に基づきセンサ信号を出力する磁気センサ部と、
前記磁気センサ部により出力された前記センサ信号に基づき、前記移動体の位置を検出する位置検出部と
を備え、
前記磁気センサ部は、請求項1〜7のいずれかに記載の磁気抵抗効果素子を含むことを特徴とする位置検出装置。 - 前記移動体が、所定の回転軸周りに回転移動する回転移動体であり、
前記位置検出部は、前記磁気センサ部により出力された前記センサ信号に基づき、前記回転移動体の回転位置を検出することを特徴とする請求項8に記載の位置検出装置。 - 磁気抵抗効果積層体と、前記磁気抵抗効果積層体に電流を供給するための下部リード電極及び上部リード電極とを備え、前記下部リード電極は、少なくとも第1導電層及び第2導電層がこの順で積層されてなる積層体である磁気抵抗効果素子を製造する方法であって、
前記第1導電層を構成する第1導電材料からなる第1導電膜を成膜する工程と、
前記第1導電膜上に前記第2導電層を構成する第2導電材料からなる第2導電膜を成膜する工程と、
少なくとも前記第1導電膜及び前記第2導電膜が積層されてなる積層膜をミリングすることで、下部リード電極形成領域に前記下部リード電極を形成する工程と、
前記下部リード電極上に設定される磁気抵抗効果積層体形成領域に前記磁気抵抗効果積層体を形成する工程と、
前記磁気抵抗効果積層体形成領域に形成された前記磁気抵抗効果積層体上に上部リード電極を形成する工程と
を含み、
前記下部リード電極を形成する工程において、前記下部リード電極形成領域以外の領域に前記第1導電膜の少なくとも一部を残存させるように前記積層膜をミリングすることで、前記下部リード電極を他の導体に電気的に接続する帯電防止膜を形成する
ことを特徴とする磁気抵抗効果素子の製造方法。 - 前記磁気抵抗効果素子は、複数の前記磁気抵抗効果積層体と、前記複数の磁気抵抗効果積層体を電気的に直列に接続する複数の前記下部リード電極及び複数の前記上部リード電極とを備えており、
前記磁気抵抗効果積層体を形成する工程において、前記複数の下部リード電極のそれぞれに設定される複数の前記磁気抵抗効果積層体形成領域のそれぞれに前記磁気抵抗効果積層体を形成し、
前記上部リード電極を形成する工程において、前記複数の磁気抵抗効果積層体を直列に接続するように前記複数の上部リード電極を形成し、
前記下部リード電極を形成する工程において、前記下部リード電極形成領域以外の領域に前記第1導電膜の少なくとも一部を残存させるように前記積層膜をミリングすることで、前記複数の下部リード電極同士を電気的に接続する前記帯電防止膜を形成する
ことを特徴とする請求項10に記載の磁気抵抗効果素子の製造方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018049267A JP6791183B2 (ja) | 2018-03-16 | 2018-03-16 | 磁気抵抗効果素子及びその製造方法、並びに位置検出装置 |
US16/049,981 US10895473B2 (en) | 2018-03-16 | 2018-07-31 | Magnetoresistive effect element, manufacturing method thereof, and position detection apparatus |
DE102018120127.3A DE102018120127B4 (de) | 2018-03-16 | 2018-08-17 | Element mit magnetoresistivem Effekt, Herstellungsverfahren hierfür, und Positionsdetektionsvorrichtung |
CN201811067781.0A CN110277489B (zh) | 2018-03-16 | 2018-09-13 | 磁阻效应元件及其制造方法和位置检测装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018049267A JP6791183B2 (ja) | 2018-03-16 | 2018-03-16 | 磁気抵抗効果素子及びその製造方法、並びに位置検出装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2019161160A JP2019161160A (ja) | 2019-09-19 |
JP6791183B2 true JP6791183B2 (ja) | 2020-11-25 |
Family
ID=67774393
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018049267A Active JP6791183B2 (ja) | 2018-03-16 | 2018-03-16 | 磁気抵抗効果素子及びその製造方法、並びに位置検出装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US10895473B2 (ja) |
JP (1) | JP6791183B2 (ja) |
CN (1) | CN110277489B (ja) |
DE (1) | DE102018120127B4 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7298569B2 (ja) * | 2020-08-27 | 2023-06-27 | Tdk株式会社 | 磁気センサ、並びに磁気センサを用いた位置検出装置及び電流センサ |
DE102022108102A1 (de) | 2022-04-05 | 2023-10-05 | Infineon Technologies Ag | Magnetische sensorvorrichtung |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0944820A (ja) * | 1995-08-02 | 1997-02-14 | Hitachi Ltd | 磁気抵抗効果型磁気ヘッド |
JP5348080B2 (ja) | 2002-03-27 | 2013-11-20 | ヤマハ株式会社 | 磁気センサおよびその製造方法 |
JP2007188585A (ja) * | 2006-01-13 | 2007-07-26 | Alps Electric Co Ltd | 磁気ヘッド及びその製造方法 |
JP5247002B2 (ja) * | 2006-02-14 | 2013-07-24 | エイチジーエスティーネザーランドビーブイ | 磁気抵抗効果型ヘッドの製造方法 |
JP2008059705A (ja) | 2006-08-31 | 2008-03-13 | Fujitsu Ltd | 垂直通電型磁気ヘッド並びにその製造方法、ヘッドサスペンション組立体及び磁気記録装置。 |
JP2008186506A (ja) | 2007-01-29 | 2008-08-14 | Hitachi Global Storage Technologies Netherlands Bv | 薄膜磁気ヘッド及びその製造方法 |
JP2008288436A (ja) * | 2007-05-18 | 2008-11-27 | Panasonic Corp | 不揮発性記憶素子及びその製造方法、並びにその不揮発性記憶素子を用いた不揮発性半導体装置及びその製造方法 |
JP2008305888A (ja) * | 2007-06-06 | 2008-12-18 | Panasonic Corp | 不揮発性記憶装置およびその製造方法 |
JP5045273B2 (ja) | 2007-07-03 | 2012-10-10 | ヤマハ株式会社 | 磁気センサの製造方法 |
JP5233201B2 (ja) | 2007-08-09 | 2013-07-10 | Tdk株式会社 | 磁気デバイス及び周波数検出器 |
US8427144B2 (en) | 2009-07-28 | 2013-04-23 | Tdk Corporation | Magnetic sensor that includes magenetoresistive films and conductors that combine the magnetoresistive films |
JP2011064653A (ja) * | 2009-09-18 | 2011-03-31 | Tdk Corp | 磁気センサおよびその製造方法 |
CN102809665B (zh) * | 2012-06-04 | 2016-08-03 | 江苏多维科技有限公司 | 一种磁电阻齿轮传感器 |
JP2015179779A (ja) * | 2014-03-19 | 2015-10-08 | 株式会社東芝 | 歪検出素子、圧力センサ、マイクロフォン、血圧センサ及びタッチパネル |
CN105845297A (zh) * | 2016-05-16 | 2016-08-10 | 上海芯石微电子有限公司 | 一种氮化钽金属薄层电阻结构及其制备方法 |
JP6280610B1 (ja) | 2016-10-03 | 2018-02-14 | Tdk株式会社 | 磁気抵抗効果素子及びその製造方法、並びに位置検出装置 |
JP6330896B1 (ja) | 2016-12-20 | 2018-05-30 | Tdk株式会社 | 3軸磁気センサ及びその製造方法 |
-
2018
- 2018-03-16 JP JP2018049267A patent/JP6791183B2/ja active Active
- 2018-07-31 US US16/049,981 patent/US10895473B2/en active Active
- 2018-08-17 DE DE102018120127.3A patent/DE102018120127B4/de active Active
- 2018-09-13 CN CN201811067781.0A patent/CN110277489B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
US20190285435A1 (en) | 2019-09-19 |
DE102018120127A1 (de) | 2019-09-19 |
CN110277489A (zh) | 2019-09-24 |
DE102018120127B4 (de) | 2020-06-18 |
JP2019161160A (ja) | 2019-09-19 |
US10895473B2 (en) | 2021-01-19 |
CN110277489B (zh) | 2023-10-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10895474B2 (en) | Magnetoresistive element and method of manufacturing such, and position detection device | |
JP6189426B2 (ja) | 磁気抵抗歯車センサ | |
CN108663638B (zh) | 磁场检测装置 | |
EP2284556B1 (en) | Magnetic sensor | |
US20180231618A1 (en) | Magnetic sensor apparatus | |
JP2016183904A (ja) | 磁気センサ及び磁気式エンコーダ | |
CN104900801A (zh) | 一种反铁磁钉扎各向异性磁电阻(amr)传感器 | |
US11047709B2 (en) | Magnetic field sensor and magnetic field sensing method | |
JP6791183B2 (ja) | 磁気抵抗効果素子及びその製造方法、並びに位置検出装置 | |
JP2018146280A (ja) | 磁気センサ | |
CN110286339B (zh) | 磁检测装置 | |
JP2016186476A (ja) | 磁気センサ及び磁気式エンコーダ | |
EP2743648B1 (en) | Encoder | |
US8410893B2 (en) | Magnetic detector and method for manufacturing the same | |
JP5007916B2 (ja) | 磁気センサ | |
JP2018200307A (ja) | 磁気センサ | |
JP2015133377A (ja) | 磁気検出素子および回転検出装置 | |
JP5630598B2 (ja) | 薄膜磁気センサ | |
JP4890401B2 (ja) | 原点検出装置 | |
JP2003282999A (ja) | 磁気センサ | |
US20240111006A1 (en) | Methods for tunnel magnetoresistance multi-turn sensor manufacture and read-out | |
EP2722649B1 (en) | Magnetic encoder | |
WO2024074462A1 (en) | A tunnel magnetoresistive multi-turn sensor | |
WO2024074460A1 (en) | A tunnel magnetoresistive multi-turn sensor | |
CN118501525A (zh) | 电流传感器芯片、制作方法和电路 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20190516 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20200303 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20200228 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20200318 |
|
RD04 | Notification of resignation of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7424 Effective date: 20200305 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20200609 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20200619 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20201006 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20201019 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6791183 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |