JP7021020B2 - 圧力センサチップ - Google Patents
圧力センサチップ Download PDFInfo
- Publication number
- JP7021020B2 JP7021020B2 JP2018138741A JP2018138741A JP7021020B2 JP 7021020 B2 JP7021020 B2 JP 7021020B2 JP 2018138741 A JP2018138741 A JP 2018138741A JP 2018138741 A JP2018138741 A JP 2018138741A JP 7021020 B2 JP7021020 B2 JP 7021020B2
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- Prior art keywords
- ring
- pressure
- region
- sensor diaphragm
- shaped
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
- G01L13/06—Devices or apparatus for measuring differences of two or more fluid pressure values using electric or magnetic pressure-sensitive elements
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
- G01L27/002—Calibrating, i.e. establishing true relation between transducer output value and value to be measured, zeroing, linearising or span error determination
- G01L27/005—Apparatus for calibrating pressure sensors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
- G01L13/02—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements
- G01L13/025—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements using diaphragms
-
- 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
- G01L19/0092—Pressure sensor associated with other sensors, e.g. for measuring acceleration or temperature
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- 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
- G01L19/0618—Overload protection
-
- 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
- G01L19/147—Details about the mounting of the sensor to support or covering means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
- G01L7/02—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges
- G01L7/08—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges of the flexible-diaphragm type
-
- 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
- G01L9/0042—Constructional details associated with semiconductive diaphragm sensors, e.g. etching, or constructional details of non-semiconductive diaphragms
- G01L9/0048—Details about the mounting of the diaphragm to its support or about the diaphragm edges, e.g. notches, round shapes for stress relief
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Measuring Fluid Pressure (AREA)
- Pressure Sensors (AREA)
Description
以上、実施の形態を参照して本発明を説明したが、本発明は上記の実施の形態に限定されるものではない。本発明の構成や詳細には、本発明の技術思想の範囲内で当業者が理解し得る様々な変更をすることができる。
Claims (4)
- 圧力差に応じた信号を出力するセンサダイアフラムと、前記センサダイアフラムの一方の面にその周縁部を対面させて接合され、前記センサダイアフラムの一方の面へ第1の測定圧を導く第1の導圧孔を有する第1の保持部材と、前記センサダイアフラムの他方の面にその周縁部を対面させて接合され、前記センサダイアフラムの他方の面へ第2の測定圧を導く第2の導圧孔を有する第2の保持部材とを備えた圧力センサチップにおいて、
前記第1の保持部材は、
前記センサダイアフラムの他方の面に過大圧が印加された時の当該センサダイアフラムの過度な変位を阻止するそのセンサダイアフラムの変位に沿った曲面状の凹部を備え、
前記第1の保持部材の周縁部には、
前記センサダイアフラムと前記第1の保持部材の曲面状の凹部とで囲まれる空間にその内壁面が臨むリング状の壁が設けられ、
前記第1の保持部材の曲面状の凹部には、
複数の凸部と凸部との間の通路として前記第1の導圧孔に連通する溝が形成された溝パターン領域と、この溝パターン領域を囲むリング状の溝パターン無領域とが設けられ、
前記溝パターン無領域は、
前記センサダイアフラムの前記第1の保持部材の曲面状の凹部への着底時に、
前記センサダイアフラムが密着するリング状の第1の領域と、
前記リング状の壁の内壁面と前記リング状の第1の領域との間に位置するリング状の第2の領域とに分かれ、
前記リング状の第1の領域を封止領域として、前記リング状の第2の領域を封じ込め領域として、前記リング状の壁の内壁面側の空間に残存する圧力伝達媒体が前記封じ込め領域に封じ込められる
ことを特徴とする圧力センサチップ。 - 請求項1に記載された圧力センサチップにおいて、
前記リング状の壁は、
前記第1の保持部材に一体的に設けられている
ことを特徴とする圧力センサチップ。 - 請求項1に記載された圧力センサチップにおいて、
前記リング状の壁は、
前記第1の保持部材とは別体として設けられている
ことを特徴とする圧力センサチップ。 - 請求項1~3の何れか1項に記載された圧力センサチップにおいて、
前記リング状の壁の内壁面の角度は、
前記リング状の壁と前記センサダイアフラムの周縁部との接合面に対して45゜以上とされている
ことを特徴とする圧力センサチップ。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018138741A JP7021020B2 (ja) | 2018-07-24 | 2018-07-24 | 圧力センサチップ |
KR1020190083287A KR102160498B1 (ko) | 2018-07-24 | 2019-07-10 | 압력 센서 칩 |
CN201910664731.9A CN110779654B (zh) | 2018-07-24 | 2019-07-23 | 压力传感器芯片 |
US16/519,060 US11181431B2 (en) | 2018-07-24 | 2019-07-23 | Pressure sensor chip |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018138741A JP7021020B2 (ja) | 2018-07-24 | 2018-07-24 | 圧力センサチップ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2020016507A JP2020016507A (ja) | 2020-01-30 |
JP7021020B2 true JP7021020B2 (ja) | 2022-02-16 |
Family
ID=69179128
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018138741A Active JP7021020B2 (ja) | 2018-07-24 | 2018-07-24 | 圧力センサチップ |
Country Status (4)
Country | Link |
---|---|
US (1) | US11181431B2 (ja) |
JP (1) | JP7021020B2 (ja) |
KR (1) | KR102160498B1 (ja) |
CN (1) | CN110779654B (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113503808B (zh) * | 2021-07-23 | 2023-04-07 | 深圳瑞湖科技有限公司 | 一种适用于曲面形变检测的压力感应结构 |
US20240125658A1 (en) * | 2022-10-18 | 2024-04-18 | Measurement Specialties, Inc. | Membrane of a sensor with multiple ranges |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006208128A (ja) | 2005-01-27 | 2006-08-10 | Kyocera Corp | 圧力検出装置用パッケージおよび圧力検出装置 |
WO2015132089A1 (de) | 2014-03-06 | 2015-09-11 | Endress+Hauser Gmbh+Co. Kg | Drucksensor |
JP2017106812A (ja) | 2015-12-10 | 2017-06-15 | アズビル株式会社 | 圧力センサチップ |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5749830A (en) * | 1980-09-10 | 1982-03-24 | Hitachi Ltd | Transmitting device for pressure difference |
US4458537A (en) * | 1981-05-11 | 1984-07-10 | Combustion Engineering, Inc. | High accuracy differential pressure capacitive transducer |
US4501051A (en) | 1981-05-11 | 1985-02-26 | Combustion Engineering, Inc. | High accuracy differential pressure capacitive transducer and methods for making same |
JPH081468Y2 (ja) * | 1990-06-14 | 1996-01-17 | 横河電機株式会社 | 差圧測定装置 |
JPH056344U (ja) * | 1991-07-10 | 1993-01-29 | 横河電機株式会社 | 差圧測定装置 |
JPH06229859A (ja) * | 1993-02-02 | 1994-08-19 | Fujitsu Ltd | 薄膜圧力センサとその製造方法 |
JP3847281B2 (ja) | 2003-08-20 | 2006-11-22 | 株式会社山武 | 圧力センサ装置 |
JP5897940B2 (ja) | 2012-03-14 | 2016-04-06 | アズビル株式会社 | 圧力センサチップ |
JP6002010B2 (ja) * | 2012-11-20 | 2016-10-05 | アズビル株式会社 | 圧力センサチップ |
JP2014102169A (ja) * | 2012-11-20 | 2014-06-05 | Azbil Corp | 圧力センサチップ |
JP6058986B2 (ja) * | 2012-11-29 | 2017-01-11 | アズビル株式会社 | 差圧センサ |
JP6034818B2 (ja) * | 2014-03-04 | 2016-11-30 | アズビル株式会社 | 圧力センサチップ |
JP6034819B2 (ja) * | 2014-03-31 | 2016-11-30 | アズビル株式会社 | 圧力センサチップ |
JP2017181147A (ja) * | 2016-03-29 | 2017-10-05 | セイコーエプソン株式会社 | 圧力センサー、高度計、電子機器および移動体 |
-
2018
- 2018-07-24 JP JP2018138741A patent/JP7021020B2/ja active Active
-
2019
- 2019-07-10 KR KR1020190083287A patent/KR102160498B1/ko active IP Right Grant
- 2019-07-23 CN CN201910664731.9A patent/CN110779654B/zh active Active
- 2019-07-23 US US16/519,060 patent/US11181431B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006208128A (ja) | 2005-01-27 | 2006-08-10 | Kyocera Corp | 圧力検出装置用パッケージおよび圧力検出装置 |
WO2015132089A1 (de) | 2014-03-06 | 2015-09-11 | Endress+Hauser Gmbh+Co. Kg | Drucksensor |
JP2017106812A (ja) | 2015-12-10 | 2017-06-15 | アズビル株式会社 | 圧力センサチップ |
Also Published As
Publication number | Publication date |
---|---|
US20200033219A1 (en) | 2020-01-30 |
US11181431B2 (en) | 2021-11-23 |
KR20200011359A (ko) | 2020-02-03 |
CN110779654A (zh) | 2020-02-11 |
JP2020016507A (ja) | 2020-01-30 |
KR102160498B1 (ko) | 2020-09-28 |
CN110779654B (zh) | 2021-07-06 |
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