KR101223862B1 - 압력 센서 - Google Patents
압력 센서 Download PDFInfo
- Publication number
- KR101223862B1 KR101223862B1 KR1020110032786A KR20110032786A KR101223862B1 KR 101223862 B1 KR101223862 B1 KR 101223862B1 KR 1020110032786 A KR1020110032786 A KR 1020110032786A KR 20110032786 A KR20110032786 A KR 20110032786A KR 101223862 B1 KR101223862 B1 KR 101223862B1
- Authority
- KR
- South Korea
- Prior art keywords
- differential pressure
- diaphragm
- pressure
- gauge
- pressure diaphragm
- Prior art date
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- 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
- 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
- G01L9/02—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 by making use of variations in ohmic resistance, e.g. of potentiometers, electric circuits therefor, e.g. bridges, amplifiers or signal conditioning
- G01L9/04—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 by making use of variations in ohmic resistance, e.g. of potentiometers, electric circuits therefor, e.g. bridges, amplifiers or signal conditioning of resistance-strain gauges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L15/00—Devices or apparatus for measuring two or more fluid pressure values simultaneously
-
- 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
- G01L19/02—Arrangements for preventing, or for compensating for, effects of inclination or acceleration of the measuring device; Zero-setting means
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Measuring Fluid Pressure (AREA)
- Micromachines (AREA)
- Pressure Sensors (AREA)
Abstract
센서 칩(10)과, 센서 칩(10)의 중앙부에 설치된 차압용 다이어프램(4)과, 차압용 다이어프램(4)의 제1 단부변 상에 설치되고 차압용 다이어프램(4)의 중심에 대한 직경 방향을 따라서 형성된 제1 차압용 게이지(5c)와, 차압용 다이어프램(4)의 제1 단부변 상에서 제1 차압용 게이지(5c)의 근방에 설치되고 직경 방향과 수직인 둘레 방향을 따라서 형성된 제2 차압용 게이지(5a)와, 차압용 다이어프램(4)의 외측에 설치되고 차압용 다이어프램(4)의 제1 단부변을 제외한 다른 단부변 중 어느 하나와 센서 칩(10)의 단부와의 사이에 배치된 정압용 다이어프램(17)을 포함하는 압력 센서이다.
Description
도 2는 도 1의 II-II 단면도이다.
도 3은 도 1의 III-III 단면도이다.
도 4는 압력 센서의 센서 칩의 제조 공정을 나타내는 도면이다.
도 5는 압력 센서의 센서 칩의 제조 공정을 나타내는 공정 단면도이고, 도 4의 VV 단면도이다.
도 6은 압력 센서의 대좌의 제조 공정을 나타내는 도면이다.
도 7은 압력 센서의 대좌의 제조 공정을 나타내는 공정 단면도이고, 도 6의 VII-VII 단면도이다.
도 8은 본 발명의 제2 실시형태에 따른 압력 센서의 구성을 나타내는 평면도이다.
3 : 제2 반도체층 4 : 차압용 다이어프램
5 : 차압용 게이지 5a : 차압용 게이지(제2 차압용 게이지)
5c : 차압용 게이지(제1 차압용 게이지)
9 : 레지스트 10 : 센서 칩
11 : 대좌 15(15bㆍ15d) : 정압용 게이지
17 : 정압용 다이어프램 18 : 관통 구멍
19 : 레지스트 29 : 마스크
Claims (5)
- 기판과,
상기 기판의 중앙부에 설치된 차압용 다이어프램과,
상기 차압용 다이어프램의 제1 단부변 상에 설치되고, 상기 차압용 다이어프램의 중심에 대한 직경 방향을 따라서 형성된 제1 차압용 게이지와,
상기 차압용 다이어프램의 상기 제1 단부변 상에서 상기 제1 차압용 게이지의 근방에 설치되고, 상기 직경 방향과 수직인 둘레 방향을 따라서 형성된 제2 차압용 게이지와,
상기 차압용 다이어프램의 외측에 설치되고, 상기 차압용 다이어프램의 상기 제1 단부변을 제외한 다른 단부변 중 어느 하나와 상기 기판의 단부와의 사이에 배치된 정압용 다이어프램과,
상기 기판과 접합된 대좌를 포함하고,
상기 차압용 다이어프램의 상기 제1 단부변으로부터 상기 기판의 단부까지의 사이에, 상기 대좌와 상기 기판의 비접합 영역이 형성되는 것인 압력 센서. - 삭제
- 제1항에 있어서, 상기 정압용 다이어프램은 상기 직경 방향으로 배치되는 단부변이 상기 둘레 방향으로 배치되는 단부변보다 짧은 형상이고,
상기 정압용 다이어프램의 중앙부와 상기 둘레 방향으로 배치되는 단부에, 각각 정압용 게이지가 설치되는 것인 압력 센서. - 제3항에 있어서, 상기 정압용 다이어프램은 직사각형으로 형성되는 것인 압력 센서.
- 제1항에 있어서, 상기 정압용 다이어프램은 정방형으로 형성되고,
상기 정압용 다이어프램의 인접하는 2개의 단부변 상에, 각각 배열 방향을 맞춰 정압용 게이지가 설치되는 것인 압력 센서.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010092429A JP5658477B2 (ja) | 2010-04-13 | 2010-04-13 | 圧力センサ |
JPJP-P-2010-092429 | 2010-04-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20110114462A KR20110114462A (ko) | 2011-10-19 |
KR101223862B1 true KR101223862B1 (ko) | 2013-01-17 |
Family
ID=44759943
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020110032786A KR101223862B1 (ko) | 2010-04-13 | 2011-04-08 | 압력 센서 |
Country Status (4)
Country | Link |
---|---|
US (1) | US8522619B2 (ko) |
JP (1) | JP5658477B2 (ko) |
KR (1) | KR101223862B1 (ko) |
CN (1) | CN102252789B (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20220047185A (ko) * | 2020-10-08 | 2022-04-15 | 아즈빌주식회사 | 압력 측정 장치 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5454628B2 (ja) * | 2012-06-29 | 2014-03-26 | 株式会社デンソー | 圧力センサ |
CN103630274B (zh) * | 2013-12-06 | 2015-08-26 | 西安交通大学 | 一种基于微机电系统的挠曲电式微压力传感器 |
US10317297B2 (en) | 2013-12-11 | 2019-06-11 | Melexis Technologies Nv | Semiconductor pressure sensor |
GB2521163A (en) * | 2013-12-11 | 2015-06-17 | Melexis Technologies Nv | Semiconductor pressure sensor |
JP2018169177A (ja) * | 2017-03-29 | 2018-11-01 | パナソニックIpマネジメント株式会社 | 圧力センサ素子と、これを用いた圧力センサ |
JP6922788B2 (ja) * | 2018-03-05 | 2021-08-18 | 三菱電機株式会社 | 半導体圧力センサ |
WO2022030176A1 (ja) * | 2020-08-03 | 2022-02-10 | 株式会社村田製作所 | 圧力センサ用チップ、圧力センサ及びそれらの製造方法 |
US11650110B2 (en) * | 2020-11-04 | 2023-05-16 | Honeywell International Inc. | Rosette piezo-resistive gauge circuit for thermally compensated measurement of full stress tensor |
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2010
- 2010-04-13 JP JP2010092429A patent/JP5658477B2/ja not_active Expired - Fee Related
-
2011
- 2011-04-08 KR KR1020110032786A patent/KR101223862B1/ko active IP Right Grant
- 2011-04-13 US US13/085,837 patent/US8522619B2/en not_active Expired - Fee Related
- 2011-04-13 CN CN201110097553.XA patent/CN102252789B/zh not_active Expired - Fee Related
Patent Citations (4)
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KR100186938B1 (ko) | 1995-07-14 | 1999-05-15 | 요코가와 덴키 가부시키가이샤 | 반도체 차압 측정장치 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20220047185A (ko) * | 2020-10-08 | 2022-04-15 | 아즈빌주식회사 | 압력 측정 장치 |
KR102577430B1 (ko) | 2020-10-08 | 2023-09-11 | 아즈빌주식회사 | 압력 측정 장치 |
Also Published As
Publication number | Publication date |
---|---|
JP5658477B2 (ja) | 2015-01-28 |
JP2011220935A (ja) | 2011-11-04 |
CN102252789A (zh) | 2011-11-23 |
US8522619B2 (en) | 2013-09-03 |
US20110247422A1 (en) | 2011-10-13 |
KR20110114462A (ko) | 2011-10-19 |
CN102252789B (zh) | 2015-01-07 |
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