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JPS6384176A - 磁界収束型ホ−ル素子及びその製造方法 - Google Patents

磁界収束型ホ−ル素子及びその製造方法

Info

Publication number
JPS6384176A
JPS6384176A JP61230679A JP23067986A JPS6384176A JP S6384176 A JPS6384176 A JP S6384176A JP 61230679 A JP61230679 A JP 61230679A JP 23067986 A JP23067986 A JP 23067986A JP S6384176 A JPS6384176 A JP S6384176A
Authority
JP
Japan
Prior art keywords
hall element
soft ferromagnetic
magnetic
lead frame
resin
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
Application number
JP61230679A
Other languages
English (en)
Inventor
Toshihiro Kato
加藤 俊博
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP61230679A priority Critical patent/JPS6384176A/ja
Publication of JPS6384176A publication Critical patent/JPS6384176A/ja
Pending legal-status Critical Current

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  • Hall/Mr Elements (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

Description

【発明の詳細な説明】 〔発明の目的〕 (産業上の利用分野) 本発明は磁界収束型ホール素子(ホール効果を用いた磁
気センサ)及びその製造方法に関する。
(従来の技術) 磁場の強弱で抵抗が変わるのをホール効果という。従来
の磁界収束型ホール素子構造は、第3図のようにリード
フレーム1のペラP部la上にM n −Z nフェラ
イト等の高透磁率を有する軟質性基板2をs A gペ
ーストや半田材のような接合材料6でマウントし、その
上に更にGa人3゜In8b等のホール素子3をAgペ
ースト等でマウントし、がンディングワイヤ4によりホ
ール素子3上の電極とリードフレームのインナーリード
とを接続し、次にM n −Z nフェライトのような
軟磁性粉を含有するエンキャップ剤5でベレット中央部
に山盛り状にポツティングされている。ベレット上下の
磁性体により、磁界を収束させることによってホール素
子感度を向上させていた。図中2はモールドレジンであ
る。
(発明が解決しようとする問題点) 上記従来例のようにベレット下にフェライトのような軟
質磁性体基板チップを置く方法は、比較的高感度な磁気
特性は得られるが、フェライト板2のようなものと重ね
ているため、外囲器の薄型化要求は対処できなかった。
本発明は外囲器形状をできるだけ薄くし、しかも高感度
特性が得られるようにしたものである。
〔発明の構成〕
(問題点を解決するための手段と作用)従来は、ホール
素子を固着するリードフレーム材料として、非磁性体材
料であるCuもしくはCu合金(例えばリン青銅)を用
いていた。これに対して本発明は、リードフレーム材料
として・9−マロイなどの軟質強磁性メタルを用いるこ
とにより、薄形かつ高感度化を行なうものである。
(実施例) 以下図面を参照して本発明の一実施例を説明する。第1
図は同実施例の平面図、第2図は同断面図である。即ち
軟質強磁性金属(例えばパーマロイ)よりなるリードフ
レーム1′のベッド部上に、GaAs、In−8b等の
ホール素子3が接着剤6にて固定されている。その後ワ
イヤ4を用いて素子3の電極とリード間のワイヤデンデ
ィングがなされる。その後、軟質強磁性粉を含有するエ
ンキャップレジン5を素子表面に滴下し硬化させる。そ
れからエポキシ等のトランスファモールドレジン7で成
形硬化させるものである。
上記のように構成された磁界収束型ホール素子にあつて
は、軟質強磁性金属よりなるリードフレーム1′と軟質
性強磁性粉を含有するエンキャップレジン5が磁気を集
める役目をするから高感度磁気特性を維持しつつ、第3
図のフェライト板2を省略できる等で外囲器の薄形化が
可能となるものである。ちなみに従来はモールド形状と
して厚さが1.1諷必要であったが、本発明では厚さを
0.6露とほぼ半分にすることができた。
〔発明の効果〕
以上説明した如く本発明によれば、金属細条(リードフ
レーム材料)として軟質強磁性メタルを用いたため、磁
界収束型ホール素子の高感度特性を維持しつつ、外囲器
形状の薄形化が可能となった。
【図面の簡単な説明】
第1図は本発明の一実施例の平面図、第2図は同断面図
、第3図は従来素子の断面図である。 1′・・・軟質強磁性リードフレーム、3・・・ホール
素子、4・・・デンディングワイヤ、5・−磁性粉入リ
エンキャップ剤、6・・・接合材、7・・・モールドレ
ジン。 出願人代理人  弁理士 鈴 江 武 産業1図 第2図 第3図

Claims (2)

    【特許請求の範囲】
  1. (1)軟質強磁性体よりなる金属細条と、該金属細条の
    上に固着されたホール効果型磁性素子と、インナリード
    と前記素子上の電極を接続するボンディングワイヤと、
    前記素子を上方から覆う軟質強磁性粉を含有する樹脂と
    を具備したことを特徴とする磁界収束型ホール素子。
  2. (2)パターニングされた軟質強磁性体よりなる金属細
    条の上にホール効果型磁性素子を接合し、インナリード
    と前記素子上の電極とをボンディングワイヤで接続し、
    前記素子表面上に軟質強磁性粉を含有する樹脂を滴下し
    て硬化させ、前記各部材を囲むようにモールドレジンに
    て成形硬化させたことを特徴とする磁性収束型ホール素
    子の製造方法。
JP61230679A 1986-09-29 1986-09-29 磁界収束型ホ−ル素子及びその製造方法 Pending JPS6384176A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61230679A JPS6384176A (ja) 1986-09-29 1986-09-29 磁界収束型ホ−ル素子及びその製造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61230679A JPS6384176A (ja) 1986-09-29 1986-09-29 磁界収束型ホ−ル素子及びその製造方法

Publications (1)

Publication Number Publication Date
JPS6384176A true JPS6384176A (ja) 1988-04-14

Family

ID=16911607

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61230679A Pending JPS6384176A (ja) 1986-09-29 1986-09-29 磁界収束型ホ−ル素子及びその製造方法

Country Status (1)

Country Link
JP (1) JPS6384176A (ja)

Cited By (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6265865B1 (en) * 1997-08-19 2001-07-24 Allegro Microsystems, Inc. Single unitary plastic package for a magnetic field sensing device
JP2006170999A (ja) * 2004-12-15 2006-06-29 Robert Bosch Gmbh 磁気センサ装置
JP2007095788A (ja) * 2005-09-27 2007-04-12 Asahi Kasei Electronics Co Ltd 磁気センサ
JP2008304470A (ja) * 2008-07-10 2008-12-18 Asahi Kasei Electronics Co Ltd 磁気センサ
US8058870B2 (en) 2008-05-30 2011-11-15 Infineon Technologies Ag Methods and systems for magnetic sensing
US8143169B2 (en) 2007-03-29 2012-03-27 Allegro Microsystems, Inc. Methods for multi-stage molding of integrated circuit package
US8174256B2 (en) 2008-05-30 2012-05-08 Infineon Technologies Ag Methods and systems for magnetic field sensing
US8461677B2 (en) 2008-12-05 2013-06-11 Allegro Microsystems, Llc Magnetic field sensors and methods for fabricating the magnetic field sensors
US8587297B2 (en) 2007-12-04 2013-11-19 Infineon Technologies Ag Integrated circuit including sensor having injection molded magnetic material
US8610430B2 (en) 2008-05-30 2013-12-17 Infineon Technologies Ag Bias field generation for a magneto sensor
CN105206740A (zh) * 2015-11-03 2015-12-30 常州顶芯半导体技术有限公司 一种霍尔器件的封装形式
CN105355607A (zh) * 2015-11-06 2016-02-24 常州顶芯半导体技术有限公司 一种直插式集成电路封装体
US9620705B2 (en) 2012-01-16 2017-04-11 Allegro Microsystems, Llc Methods and apparatus for magnetic sensor having non-conductive die paddle
US9666788B2 (en) 2012-03-20 2017-05-30 Allegro Microsystems, Llc Integrated circuit package having a split lead frame
US9719806B2 (en) 2014-10-31 2017-08-01 Allegro Microsystems, Llc Magnetic field sensor for sensing a movement of a ferromagnetic target object
US9720054B2 (en) 2014-10-31 2017-08-01 Allegro Microsystems, Llc Magnetic field sensor and electronic circuit that pass amplifier current through a magnetoresistance element
US9812588B2 (en) 2012-03-20 2017-11-07 Allegro Microsystems, Llc Magnetic field sensor integrated circuit with integral ferromagnetic material
US9810519B2 (en) 2013-07-19 2017-11-07 Allegro Microsystems, Llc Arrangements for magnetic field sensors that act as tooth detectors
US9817078B2 (en) 2012-05-10 2017-11-14 Allegro Microsystems Llc Methods and apparatus for magnetic sensor having integrated coil
US9823092B2 (en) 2014-10-31 2017-11-21 Allegro Microsystems, Llc Magnetic field sensor providing a movement detector
US9823090B2 (en) 2014-10-31 2017-11-21 Allegro Microsystems, Llc Magnetic field sensor for sensing a movement of a target object
US10012518B2 (en) 2016-06-08 2018-07-03 Allegro Microsystems, Llc Magnetic field sensor for sensing a proximity of an object
US10041810B2 (en) 2016-06-08 2018-08-07 Allegro Microsystems, Llc Arrangements for magnetic field sensors that act as movement detectors
US10145908B2 (en) 2013-07-19 2018-12-04 Allegro Microsystems, Llc Method and apparatus for magnetic sensor producing a changing magnetic field
US10215550B2 (en) 2012-05-01 2019-02-26 Allegro Microsystems, Llc Methods and apparatus for magnetic sensors having highly uniform magnetic fields
US10234513B2 (en) 2012-03-20 2019-03-19 Allegro Microsystems, Llc Magnetic field sensor integrated circuit with integral ferromagnetic material
US10260905B2 (en) 2016-06-08 2019-04-16 Allegro Microsystems, Llc Arrangements for magnetic field sensors to cancel offset variations
US10310028B2 (en) 2017-05-26 2019-06-04 Allegro Microsystems, Llc Coil actuated pressure sensor
US10324141B2 (en) 2017-05-26 2019-06-18 Allegro Microsystems, Llc Packages for coil actuated position sensors
US10495699B2 (en) 2013-07-19 2019-12-03 Allegro Microsystems, Llc Methods and apparatus for magnetic sensor having an integrated coil or magnet to detect a non-ferromagnetic target
US10641842B2 (en) 2017-05-26 2020-05-05 Allegro Microsystems, Llc Targets for coil actuated position sensors
US10712403B2 (en) 2014-10-31 2020-07-14 Allegro Microsystems, Llc Magnetic field sensor and electronic circuit that pass amplifier current through a magnetoresistance element
US10725100B2 (en) 2013-03-15 2020-07-28 Allegro Microsystems, Llc Methods and apparatus for magnetic sensor having an externally accessible coil
US10823586B2 (en) 2018-12-26 2020-11-03 Allegro Microsystems, Llc Magnetic field sensor having unequally spaced magnetic field sensing elements
US10837943B2 (en) 2017-05-26 2020-11-17 Allegro Microsystems, Llc Magnetic field sensor with error calculation
US10866117B2 (en) 2018-03-01 2020-12-15 Allegro Microsystems, Llc Magnetic field influence during rotation movement of magnetic target
US10921391B2 (en) 2018-08-06 2021-02-16 Allegro Microsystems, Llc Magnetic field sensor with spacer
US10955306B2 (en) 2019-04-22 2021-03-23 Allegro Microsystems, Llc Coil actuated pressure sensor and deformable substrate
US10991644B2 (en) 2019-08-22 2021-04-27 Allegro Microsystems, Llc Integrated circuit package having a low profile
US10996289B2 (en) 2017-05-26 2021-05-04 Allegro Microsystems, Llc Coil actuated position sensor with reflected magnetic field
US11061084B2 (en) 2019-03-07 2021-07-13 Allegro Microsystems, Llc Coil actuated pressure sensor and deflectable substrate
US11237020B2 (en) 2019-11-14 2022-02-01 Allegro Microsystems, Llc Magnetic field sensor having two rows of magnetic field sensing elements for measuring an angle of rotation of a magnet
US11255700B2 (en) 2018-08-06 2022-02-22 Allegro Microsystems, Llc Magnetic field sensor
US11262422B2 (en) 2020-05-08 2022-03-01 Allegro Microsystems, Llc Stray-field-immune coil-activated position sensor
US11280637B2 (en) 2019-11-14 2022-03-22 Allegro Microsystems, Llc High performance magnetic angle sensor
US11428755B2 (en) 2017-05-26 2022-08-30 Allegro Microsystems, Llc Coil actuated sensor with sensitivity detection
US11493361B2 (en) 2021-02-26 2022-11-08 Allegro Microsystems, Llc Stray field immune coil-activated sensor

Cited By (76)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6265865B1 (en) * 1997-08-19 2001-07-24 Allegro Microsystems, Inc. Single unitary plastic package for a magnetic field sensing device
JP2006170999A (ja) * 2004-12-15 2006-06-29 Robert Bosch Gmbh 磁気センサ装置
JP2007095788A (ja) * 2005-09-27 2007-04-12 Asahi Kasei Electronics Co Ltd 磁気センサ
US8143169B2 (en) 2007-03-29 2012-03-27 Allegro Microsystems, Inc. Methods for multi-stage molding of integrated circuit package
DE102008064827B3 (de) * 2007-12-04 2017-07-13 Infineon Technologies Ag Magnetfeldsensor, System und Verfahren zum Herstellen einer integrierten Schaltung
US9559293B2 (en) 2007-12-04 2017-01-31 Infineon Technologies Ag Integrated circuit including sensor having injection molded magnetic material
US10355197B2 (en) 2007-12-04 2019-07-16 Infineon Technologies Ag Integrated circuit including sensor having injection molded magnetic materials having different magnetic remanences
DE102008058895B4 (de) * 2007-12-04 2014-11-13 Infineon Technologies Ag Magnetfeldsensor, System mit einem Magnetfeldsensor und Verfahren zum Herstellen eines Magnetfeldsensors
US8587297B2 (en) 2007-12-04 2013-11-19 Infineon Technologies Ag Integrated circuit including sensor having injection molded magnetic material
US8610430B2 (en) 2008-05-30 2013-12-17 Infineon Technologies Ag Bias field generation for a magneto sensor
US8174256B2 (en) 2008-05-30 2012-05-08 Infineon Technologies Ag Methods and systems for magnetic field sensing
US10310026B2 (en) 2008-05-30 2019-06-04 Infineon Technologies Ag Bias field generation for a magneto sensor
US9678170B2 (en) 2008-05-30 2017-06-13 Infineon Technologies Ag Bias field generation for a magneto sensor
US8058870B2 (en) 2008-05-30 2011-11-15 Infineon Technologies Ag Methods and systems for magnetic sensing
JP2008304470A (ja) * 2008-07-10 2008-12-18 Asahi Kasei Electronics Co Ltd 磁気センサ
US8486755B2 (en) 2008-12-05 2013-07-16 Allegro Microsystems, Llc Magnetic field sensors and methods for fabricating the magnetic field sensors
US8461677B2 (en) 2008-12-05 2013-06-11 Allegro Microsystems, Llc Magnetic field sensors and methods for fabricating the magnetic field sensors
US10333055B2 (en) 2012-01-16 2019-06-25 Allegro Microsystems, Llc Methods for magnetic sensor having non-conductive die paddle
US9620705B2 (en) 2012-01-16 2017-04-11 Allegro Microsystems, Llc Methods and apparatus for magnetic sensor having non-conductive die paddle
US9812588B2 (en) 2012-03-20 2017-11-07 Allegro Microsystems, Llc Magnetic field sensor integrated circuit with integral ferromagnetic material
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US11961920B2 (en) 2012-03-20 2024-04-16 Allegro Microsystems, Llc Integrated circuit package with magnet having a channel
US9666788B2 (en) 2012-03-20 2017-05-30 Allegro Microsystems, Llc Integrated circuit package having a split lead frame
US11677032B2 (en) 2012-03-20 2023-06-13 Allegro Microsystems, Llc Sensor integrated circuit with integrated coil and element in central region of mold material
US11444209B2 (en) 2012-03-20 2022-09-13 Allegro Microsystems, Llc Magnetic field sensor integrated circuit with an integrated coil enclosed with a semiconductor die by a mold material
US11828819B2 (en) 2012-03-20 2023-11-28 Allegro Microsystems, Llc Magnetic field sensor integrated circuit with integral ferromagnetic material
US10230006B2 (en) 2012-03-20 2019-03-12 Allegro Microsystems, Llc Magnetic field sensor integrated circuit with an electromagnetic suppressor
US10234513B2 (en) 2012-03-20 2019-03-19 Allegro Microsystems, Llc Magnetic field sensor integrated circuit with integral ferromagnetic material
US10215550B2 (en) 2012-05-01 2019-02-26 Allegro Microsystems, Llc Methods and apparatus for magnetic sensors having highly uniform magnetic fields
US9817078B2 (en) 2012-05-10 2017-11-14 Allegro Microsystems Llc Methods and apparatus for magnetic sensor having integrated coil
US11680996B2 (en) 2012-05-10 2023-06-20 Allegro Microsystems, Llc Methods and apparatus for magnetic sensor having integrated coil
US10725100B2 (en) 2013-03-15 2020-07-28 Allegro Microsystems, Llc Methods and apparatus for magnetic sensor having an externally accessible coil
US10145908B2 (en) 2013-07-19 2018-12-04 Allegro Microsystems, Llc Method and apparatus for magnetic sensor producing a changing magnetic field
US10254103B2 (en) 2013-07-19 2019-04-09 Allegro Microsystems, Llc Arrangements for magnetic field sensors that act as tooth detectors
US11313924B2 (en) 2013-07-19 2022-04-26 Allegro Microsystems, Llc Method and apparatus for magnetic sensor producing a changing magnetic field
US9810519B2 (en) 2013-07-19 2017-11-07 Allegro Microsystems, Llc Arrangements for magnetic field sensors that act as tooth detectors
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US11313700B2 (en) 2018-03-01 2022-04-26 Allegro Microsystems, Llc Magnetic field influence during rotation movement of magnetic target
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US11061084B2 (en) 2019-03-07 2021-07-13 Allegro Microsystems, Llc Coil actuated pressure sensor and deflectable substrate
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US11280637B2 (en) 2019-11-14 2022-03-22 Allegro Microsystems, Llc High performance magnetic angle sensor
US11237020B2 (en) 2019-11-14 2022-02-01 Allegro Microsystems, Llc Magnetic field sensor having two rows of magnetic field sensing elements for measuring an angle of rotation of a magnet
US11262422B2 (en) 2020-05-08 2022-03-01 Allegro Microsystems, Llc Stray-field-immune coil-activated position sensor
US11493361B2 (en) 2021-02-26 2022-11-08 Allegro Microsystems, Llc Stray field immune coil-activated sensor

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