JP6940736B2 - 磁場の印加を介する磁気材料に起因する磁気センサ構成要素変動の低減 - Google Patents
磁場の印加を介する磁気材料に起因する磁気センサ構成要素変動の低減 Download PDFInfo
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- JP6940736B2 JP6940736B2 JP2018547916A JP2018547916A JP6940736B2 JP 6940736 B2 JP6940736 B2 JP 6940736B2 JP 2018547916 A JP2018547916 A JP 2018547916A JP 2018547916 A JP2018547916 A JP 2018547916A JP 6940736 B2 JP6940736 B2 JP 6940736B2
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- 239000000696 magnetic material Substances 0.000 title 1
- 238000004377 microelectronic Methods 0.000 claims description 119
- 238000000034 method Methods 0.000 claims description 46
- 239000000758 substrate Substances 0.000 claims description 30
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 18
- 238000012360 testing method Methods 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 14
- 229910052759 nickel Inorganic materials 0.000 claims description 9
- 230000004907 flux Effects 0.000 claims description 4
- 230000006870 function Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims description 2
- 230000005389 magnetism Effects 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000004065 semiconductor Substances 0.000 description 10
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000004590 computer program Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/0017—Means for compensating offset magnetic fields or the magnetic flux to be measured; Means for generating calibration 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
- G01R33/04—Measuring direction or magnitude of magnetic fields or magnetic flux using the flux-gate principle
-
- 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
- G01R33/07—Hall effect 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
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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Measuring Magnetic Variables (AREA)
- Hall/Mr Elements (AREA)
Description
Claims (15)
- 方法であって、
他のマイクロ電子デバイスを備える基板ウェハの一部であるマイクロ電子デバイスの磁化可能な構造的特徴であって、ボンドパッドを含み、フラックスゲート磁気計コアを含む前記マイクロ電子デバイスの磁気センサ構成要素から分離された前記磁化可能な構造的特徴に、前記磁化可能な構造的特徴の磁気モーメントを磁場に平行に整合させるために、所定の期間の間、浮遊磁場より大きい前記磁場を印加することと、
前記所定の期間の後に前記磁場の印加を中断することと、
を含む、方法。 - 請求項1に記載の方法であって、
前記磁場が少なくとも10ミリテスラ(mT)である、方法。 - 請求項1に記載の方法であって、
前記磁化可能な材料がニッケルを含む、方法。 - 請求項1に記載の方法であって、
前記磁場が前記基板の頂部表面に平行に向けられる、方法。 - 請求項1に記載の方法であって、
前記磁気センサ構成要素が磁気抵抗センサを含む、方法。 - 請求項1に記載の方法であって、
前記磁場が前記磁気センサ構成要素のフィールド測定軸に垂直に向けられる、方法。 - 請求項1に記載の方法であって、
前記磁場がハルバッハデバイスを用いて印加される、方法。 - 請求項1に記載の方法であって、
前記磁場が前記磁場を生成するため電流を用いて印加される、方法。 - 請求項8に記載の方法であって、
前記磁場がヘルムホルツコイルを用いて印加される、方法。 - 方法であって、
他のマイクロ電子デバイスを備える基板ウェハの一部であるマイクロ電子デバイスの磁化可能な構造的特徴であって、ボンドパッドを含み、ホールプレートを含む前記マイクロ電子デバイスの磁気センサ構成要素から分離された前記磁化可能な構造的特徴に、前記磁化可能な構造的特徴の磁気モーメントを磁場に平行に整合させるために、所定の期間の間、浮遊磁場よりも大きい前記磁場を印加することと、
前記所定の期間の後に前記磁場の印加を中断することと、
を含む、方法。 - 方法であって、
第1のマイクロ電子デバイスの磁気センサ構成要素から分離された前記第1のマイクロ電子デバイスの磁化可能な構造的特徴に、前記磁化可能な構造的特徴の磁気モーメントを磁場に平行に整合させるために、所定の期間の間、浮遊磁場よりも大きい前記磁場を印加することと、
前記所定の期間の後に前記磁場の印加を中断することと、
磁気センサ構成要素と磁化可能な構造的特徴とを含む第2のマイクロ電子デバイスにテスト磁場を印加することと、
その後に前記第2のマイクロ電子デバイスの前記磁気センサ構成要素のパラメータの値を測定することと、
前記磁場を前記第1のマイクロ電子デバイスに印加する前に、前記第2のマイクロ電子デバイスに印加される前記磁場にとって所望の方位を推定するために前記パラメータの前記測定された値を用いることと、
を含む、方法。 - 方法であって、
マイクロ電子デバイスの磁気センサ構成要素から分離された前記マイクロ電子デバイスの磁化可能な構造的特徴に、前記磁化可能な構造的特徴の磁気モーメントを磁場に平行に整合させるために、所定の期間の間、浮遊磁場よりも大きい前記磁場を印加することと、
前記所定の期間の後に前記磁場の印加を中断することと、
コンピュータ可読メモリから前記マイクロ電子デバイスの磁気特性の値を読むことと、
前記磁気特性の値を用いて、前記磁化可能な構造的特徴の前記磁気モーメントのテスト方位の関数として前記磁気センサ構成要素のパラメータの値を推定することと、
前記磁場を前記マイクロ電子デバイスに印加する前に、前記パラメータの前記推定された値を用いて、前記マイクロ電子デバイスに印加される前記磁場にとって所望の方位を推定することと、
を含む、方法。 - 方法であって、
能動回路とフラックスゲート磁気計コアとを収容するパッケージに配置される磁化可能な構造的特徴に、前記フラックスゲート磁気計コアの選択されたゼロフィールドオフセットのために前記磁化可能な構造的特徴の磁気モーメントを磁場に平行に整合させるために、所定の期間の間、浮遊磁場より大きい前記磁場を印加することと、
前記所定の期間の後に前記磁場の印加を中断することと、
を含む、方法。 - 請求項13に記載の方法であって、
前記磁場が少なくとも10mTである、方法。 - 請求項13に記載の方法であって、
前記パッケージの前記磁化可能な構造的特徴が金属リードを含む、方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/064,579 US10162016B2 (en) | 2016-03-08 | 2016-03-08 | Reduction of magnetic sensor component variation due to magnetic materials through the application of magnetic field |
US15/064,579 | 2016-03-08 | ||
PCT/US2017/021397 WO2017156149A1 (en) | 2016-03-08 | 2017-03-08 | Reduction of magnetic sensor component variation due to magnetic materials through the application of magnetic field |
Publications (3)
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JP2019510971A JP2019510971A (ja) | 2019-04-18 |
JP2019510971A5 JP2019510971A5 (ja) | 2020-04-09 |
JP6940736B2 true JP6940736B2 (ja) | 2021-09-29 |
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JP2018547916A Active JP6940736B2 (ja) | 2016-03-08 | 2017-03-08 | 磁場の印加を介する磁気材料に起因する磁気センサ構成要素変動の低減 |
Country Status (5)
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US (2) | US10162016B2 (ja) |
EP (1) | EP3427469B1 (ja) |
JP (1) | JP6940736B2 (ja) |
CN (1) | CN108886559B (ja) |
WO (1) | WO2017156149A1 (ja) |
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-
2016
- 2016-03-08 US US15/064,579 patent/US10162016B2/en active Active
-
2017
- 2017-03-08 CN CN201780014094.XA patent/CN108886559B/zh active Active
- 2017-03-08 JP JP2018547916A patent/JP6940736B2/ja active Active
- 2017-03-08 EP EP17764012.5A patent/EP3427469B1/en active Active
- 2017-03-08 WO PCT/US2017/021397 patent/WO2017156149A1/en active Application Filing
-
2018
- 2018-11-30 US US16/205,937 patent/US20190101601A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
WO2017156149A1 (en) | 2017-09-14 |
US10162016B2 (en) | 2018-12-25 |
EP3427469A1 (en) | 2019-01-16 |
CN108886559B (zh) | 2021-06-25 |
EP3427469A4 (en) | 2019-03-27 |
US20190101601A1 (en) | 2019-04-04 |
EP3427469B1 (en) | 2021-09-08 |
US20170261564A1 (en) | 2017-09-14 |
JP2019510971A (ja) | 2019-04-18 |
CN108886559A (zh) | 2018-11-23 |
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