JP2016109692A - ケースが絶縁され、オイルが充填されたmems圧力センサ - Google Patents
ケースが絶縁され、オイルが充填されたmems圧力センサ Download PDFInfo
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- JP2016109692A JP2016109692A JP2015234698A JP2015234698A JP2016109692A JP 2016109692 A JP2016109692 A JP 2016109692A JP 2015234698 A JP2015234698 A JP 2015234698A JP 2015234698 A JP2015234698 A JP 2015234698A JP 2016109692 A JP2016109692 A JP 2016109692A
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- 239000003921 oil Substances 0.000 description 54
- 238000013461 design Methods 0.000 description 20
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- 238000002955 isolation Methods 0.000 description 10
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 8
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Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
- G01L9/0042—Constructional details associated with semiconductive diaphragm sensors, e.g. etching, or constructional details of non-semiconductive diaphragms
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
- G01L9/0051—Transmitting or indicating the displacement of flexible diaphragms using variations in ohmic resistance
- G01L9/0052—Transmitting or indicating the displacement of flexible diaphragms using variations in ohmic resistance of piezoresistive elements
- G01L9/0054—Transmitting or indicating the displacement of flexible diaphragms using variations in ohmic resistance of piezoresistive elements integral with a semiconducting diaphragm
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/0061—Electrical connection means
- G01L19/0069—Electrical connection means from the sensor to its support
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/04—Means for compensating for effects of changes of temperature, i.e. other than electric compensation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
- G01L19/069—Protection against electromagnetic or electrostatic interferences
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/14—Housings
- G01L19/142—Multiple part housings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
- G01L9/0051—Transmitting or indicating the displacement of flexible diaphragms using variations in ohmic resistance
- G01L9/0052—Transmitting or indicating the displacement of flexible diaphragms using variations in ohmic resistance of piezoresistive elements
- G01L9/0055—Transmitting or indicating the displacement of flexible diaphragms using variations in ohmic resistance of piezoresistive elements bonded on a diaphragm
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Electromagnetism (AREA)
- Measuring Fluid Pressure (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
Abstract
Description
Claims (13)
- ヘッダ本体に搭載され、かつ当該ヘッダ本体から電気的に絶縁された、ドリフトが安定化された圧力感知素子を含み、前記圧力感知素子がオイルが充填されたキャビティ内に浸漬され、かつ実質的な信号ドリフトなしで前記キャビティ内の圧力を感知するために温度が安定化される、オイルが充填された圧力センサ
- 前記ドリフトが安定化された圧力感知素子が、電界遮蔽を有する圧力感知ユニットを含む、請求項1に記載のオイルが充填された圧力センサ。
- 前記ドリフトが安定化された圧力感知素子が、少なくとも1つのガラス金属シールによって前記ヘッダ本体から電気的に絶縁される、請求項1に記載のオイルが充填された圧力センサ。
- 前記ドリフトが安定化された圧力感知素子がさらに、前記オイルが充填されたキャビティ内のオイルの容積を低減するように構成されたダイヤフラムを含む、請求項1に記載のオイルが充填された圧力センサ。
- 前記ダイヤフラムが、波形および平面のうちの少なくとも1つである、請求項4に記載のオイルが充填された圧力センサ。
- ベースプレートが、前記圧力センサの動作中に、前記圧力感知素子を支持するのに適した材料から作られる、請求項1に記載のオイルが充填された圧力センサ。
- 前記オイルが充填されたキャビティが、前記感知素子(MEMSアッセンブリ)、ベースプレートおよびダイヤフラムを含むアッセンブリによって規定される、請求項1に記載のオイルが充填された圧力センサ。
- 前記オイルが充填されたキャビティが気密封止される、請求項1に記載のオイルが充填された圧力センサ。
- オイルが充填された圧力センサの製造方法であって、
ヘッダ本体に搭載され、かつ当該ヘッダ本体から電気的に絶縁された、ドリフトが安定化された圧力感知素子であって、前記圧力感知素子がオイルが充填されたキャビティ内に浸漬されるように構成され、かつ実質的な信号ドリフトなしで前記キャビティ内の圧力を感知するために温度が安定化される、前記圧力感知素子を選択することと、
前記ドリフトが安定化された圧力感知素子の出力の温度の影響を制限するように、センサダイヤフラムと前記オイルが充填されたキャビティとのうちの少なくとも1つを設計することと、
前記ドリフトが安定化された圧力感知素子および前記センサダイヤフラムを前記オイルが充填された圧力センサ内へ組み込むこと、
とを含む、方法。 - 請求項9に記載の方法であって、前記センサダイヤフラムを設計することが、前記オイルが充填されたキャビティの容積および前記オイルが充填されたキャビティの前記オイルの熱膨張係数(TCE)のうちの少なくとも1つを評価することを含む、方法。
- 請求項9に記載の方法であって、前記センサダイヤフラムを設計することが、前記ダイヤフラムを構成するのに使用される材料の熱膨張係数(TCE)、前記材料の厚さ、幅、直径、外形、および前記ダイヤフラムの可撓性のうちの少なくとも1つを評価することを含む、方法。
- 請求項9に記載の方法であって、前記組み込むことが、前記ドリフトが安定化された圧力感知素子を、少なくとも1つのガラス金属シールに接続することを含む、方法。
- 電界遮蔽により保護された副素子を含み、ヘッダ本体に搭載され、かつ当該ヘッダ本体から少なくとも1つのガラス金属シールによって電気的に絶縁された、ドリフトが安定化された圧力感知素子であって、前記圧力感知素子がオイルが充填されたキャビティ内に浸漬され、かつ実質的な信号ドリフトなしで前記キャビティ内の圧力を感知するように温度が安定化される、圧力感知素子
を含む、オイルが充填された圧力センサ。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/557,841 | 2014-12-02 | ||
US14/557,841 US9915577B2 (en) | 2014-12-02 | 2014-12-02 | Case isolated oil filled MEMS pressure sensor |
Publications (3)
Publication Number | Publication Date |
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JP2016109692A true JP2016109692A (ja) | 2016-06-20 |
JP2016109692A5 JP2016109692A5 (ja) | 2019-01-17 |
JP6523933B2 JP6523933B2 (ja) | 2019-06-05 |
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JP2015234698A Active JP6523933B2 (ja) | 2014-12-02 | 2015-12-01 | ケースが絶縁され、オイルが充填されたmems圧力センサ |
Country Status (6)
Country | Link |
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US (1) | US9915577B2 (ja) |
EP (1) | EP3029443B1 (ja) |
JP (1) | JP6523933B2 (ja) |
KR (1) | KR102460192B1 (ja) |
CN (1) | CN105651449B (ja) |
DE (3) | DE202015009819U1 (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8191425B1 (en) * | 2010-12-17 | 2012-06-05 | Kulite Semiconductor Products, Inc. | Gage pressure transducer and method for making the same |
US9759624B2 (en) * | 2015-03-26 | 2017-09-12 | Kulite Semiconductor Products, Inc. | Pressure transducer with case vent to avoid catastrophic failure |
US9964458B2 (en) | 2016-05-12 | 2018-05-08 | Continental Automotive Systems, Inc. | Pressure sensor device with anchors for die shrinkage and high sensitivity |
US10620071B2 (en) * | 2016-06-29 | 2020-04-14 | Danfoss A/S | Pressure sensor and method for manufacturing a pressure sensor |
JP6480969B2 (ja) * | 2017-03-17 | 2019-03-13 | 株式会社鷺宮製作所 | 圧力センサ |
DE102017213863A1 (de) * | 2017-08-09 | 2019-02-14 | Robert Bosch Gmbh | Drucksensor zum Messen eines Drucks eines Fluids und Verfahren zum Herstellen eines Drucksensors zum Messen eines Drucks eines Fluids |
JP6718855B2 (ja) * | 2017-11-30 | 2020-07-08 | 株式会社鷺宮製作所 | 圧力センサのシールド構造、および、それを備える圧力センサ |
KR102533097B1 (ko) * | 2018-06-12 | 2023-05-15 | 드와이어 인스투르먼쓰 인코포레이티드 | 정전기 방전 저항 압력 센서 |
CN209326840U (zh) | 2018-12-27 | 2019-08-30 | 热敏碟公司 | 压力传感器及压力变送器 |
DE102019208867A1 (de) * | 2019-06-18 | 2020-12-24 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung zum Erfassen eines Drucks eines Fluids |
DE102021109841A1 (de) | 2021-04-19 | 2022-10-20 | Danfoss A/S | Drucksensoranordnung und Herstellungsverfahren für die Drucksensoranordnung |
US11898920B2 (en) * | 2022-05-10 | 2024-02-13 | Sensata Technologies, Inc. | Electromagnetic interference absorbing sensor connector |
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- 2015-11-20 EP EP15195593.7A patent/EP3029443B1/en not_active Revoked
- 2015-11-20 DE DE202015009820.7U patent/DE202015009820U1/de active Active
- 2015-11-20 DE DE202015009821.5U patent/DE202015009821U1/de active Active
- 2015-12-01 JP JP2015234698A patent/JP6523933B2/ja active Active
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DE202015009821U1 (de) | 2020-06-15 |
DE202015009819U1 (de) | 2020-06-16 |
EP3029443A1 (en) | 2016-06-08 |
KR20160066528A (ko) | 2016-06-10 |
US9915577B2 (en) | 2018-03-13 |
DE202015009820U1 (de) | 2020-06-16 |
EP3029443B1 (en) | 2019-05-08 |
CN105651449A (zh) | 2016-06-08 |
JP6523933B2 (ja) | 2019-06-05 |
CN105651449B (zh) | 2020-12-29 |
KR102460192B1 (ko) | 2022-10-27 |
US20160153858A1 (en) | 2016-06-02 |
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