JP3930862B2 - 容量型センサ - Google Patents
容量型センサ Download PDFInfo
- Publication number
- JP3930862B2 JP3930862B2 JP2004037334A JP2004037334A JP3930862B2 JP 3930862 B2 JP3930862 B2 JP 3930862B2 JP 2004037334 A JP2004037334 A JP 2004037334A JP 2004037334 A JP2004037334 A JP 2004037334A JP 3930862 B2 JP3930862 B2 JP 3930862B2
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- capacitive sensor
- support member
- guard
- sensor according
- 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.)
- Expired - Lifetime
Links
- 239000000758 substrate Substances 0.000 claims description 36
- 238000001514 detection method Methods 0.000 claims description 30
- 239000010409 thin film Substances 0.000 claims description 10
- 239000004065 semiconductor Substances 0.000 claims description 6
- 239000012212 insulator Substances 0.000 description 40
- 230000003071 parasitic effect Effects 0.000 description 29
- 230000035945 sensitivity Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 10
- 239000010408 film Substances 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- 229910052814 silicon oxide Inorganic materials 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 3
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 3
- 238000005468 ion implantation Methods 0.000 description 2
- 208000023514 Barrett esophagus Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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
- G01L9/12—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 capacitance, i.e. electric circuits therefor
-
- 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
- G01L9/0072—Transmitting or indicating the displacement of flexible diaphragms using variations in capacitance
- G01L9/0073—Transmitting or indicating the displacement of flexible diaphragms using variations in capacitance using a semiconductive diaphragm
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/24—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/20—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow
- G01F1/28—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow by drag-force, e.g. vane type or impact flowmeter
-
- 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
-
- 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
- G01L9/0001—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means
- G01L9/0008—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations
- G01L9/0016—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations of a 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
- G01L9/0001—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means
- G01L9/0008—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations
- G01L9/0019—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations of a semiconductive element
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Pressure Sensors (AREA)
- Measuring Fluid Pressure (AREA)
Description
Claims (13)
- 第1電極と、
前記第1電極に対向して配置される第2電極と、
前記第1電極と前記第2電極との間に配置されるガード電極と、
前記第1電極と前記ガード電極との電位差をゼロに近付ける同電位手段と、
前記第1電極と前記第2電極との間のインピーダンスの変化を検出するための容量型センサ検出手段とを備える、容量型センサ。 - さらに、前記ガード電極と前記第1電極とを固定する第1支持部材を含む、請求項1に記載の容量型センサ。
- さらに、前記第2電極と前記ガード電極とを固定する第2支持部材を含む、請求項1または2に記載の容量型センサ。
- さらに、支持基板を含み、
前記支持基板上に前記第1電極または前記第2電極と、前記第1電極または前記第2電極とは異なる導電形式の半導体層により前記ガード電極が形成される、請求項1または2に記載の容量型センサ。 - 前記第1電極または前記第2電極は、その下面中央部に凹部が形成された薄膜部を含み、前記薄膜部が振動電極となる、請求項1から4のいずれかに記載の容量型センサ。
- 前記薄膜部として形成された第1電極または第2電極が振動電極となる、請求項5に記載の容量型センサ。
- 前記第1電極および前記第2電極の少なくともいずれか一方は振動電極である、請求項1から6のいずれかに記載の容量型センサ。
- 前記第1電極および前記第2電極は、ともに固定電極である、請求項1から6のいずれかに記載の容量型センサ。
- 広い面積の第1電極と、
前記広い面積の第1電極上に配置される面積の狭い第2電極と、
前記広い面積の第1電極上に形成される第3支持部材と、
前記第3支持部材によって支持される第4支持部材と、
前記第3支持部材と前記第4支持部材との間に配置されるガード電極と、
前記第1電極と前記ガード電極との電位差をゼロに近付ける同電位手段と、
前記第1電極と前記第2電極との間のインピーダンスの変化を検出するための容量型センサ検出手段とを備える、容量型センサ。 - 前記第3支持部材は、前記第2電極の外周より外側に配置される、請求項9に記載の容量型センサ。
- さらに、支持基板を含み、
前記第3支持部材は、前記支持基板上で前記面積の広い第1電極を支持する、請求項9または10に記載の容量型センサ。 - 前記第1電極は前記支持基板上に配置され、
さらに、前記支持基板とその上に形成される第1電極との間に配置される第5支持部材を含む、請求項11に記載の容量型センサ。 - 前記支持基板の中央部には開口部が形成されていて、
前記第5支持部材上に形成された第1電極が振動電極となる、請求項12に記載の容量型センサ。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004037334A JP3930862B2 (ja) | 2004-02-13 | 2004-02-13 | 容量型センサ |
US10/589,350 US20070194395A1 (en) | 2004-02-13 | 2005-02-14 | Capacity type sensor |
KR1020067004060A KR100894660B1 (ko) | 2004-02-13 | 2005-02-14 | 용량형 센서 |
TW094104275A TW200538712A (en) | 2004-02-13 | 2005-02-14 | Capacitive sensor |
EP05710167A EP1719994A4 (en) | 2004-02-13 | 2005-02-14 | CAPACITIVE SENSOR |
PCT/JP2005/002165 WO2005078404A1 (ja) | 2004-02-13 | 2005-02-14 | 容量型センサ |
CNB2005800006204A CN100422707C (zh) | 2004-02-13 | 2005-02-14 | 电容型传感器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004037334A JP3930862B2 (ja) | 2004-02-13 | 2004-02-13 | 容量型センサ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005227182A JP2005227182A (ja) | 2005-08-25 |
JP3930862B2 true JP3930862B2 (ja) | 2007-06-13 |
Family
ID=34857758
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004037334A Expired - Lifetime JP3930862B2 (ja) | 2004-02-13 | 2004-02-13 | 容量型センサ |
Country Status (7)
Country | Link |
---|---|
US (1) | US20070194395A1 (ja) |
EP (1) | EP1719994A4 (ja) |
JP (1) | JP3930862B2 (ja) |
KR (1) | KR100894660B1 (ja) |
CN (1) | CN100422707C (ja) |
TW (1) | TW200538712A (ja) |
WO (1) | WO2005078404A1 (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011022018A (ja) | 2009-07-16 | 2011-02-03 | Mitsubishi Electric Corp | 静電容量型加速度センサー |
DE102009059202A1 (de) * | 2009-07-20 | 2011-02-03 | Huf Hülsbeck & Fürst Gmbh & Co. Kg | Sensormodul |
AU2010203289B2 (en) * | 2009-08-21 | 2015-04-09 | Aktiebolaget Electrolux | An Egg Sensor |
JP5855373B2 (ja) * | 2011-07-11 | 2016-02-09 | オリンパス株式会社 | 超音波エレメントおよび超音波内視鏡 |
CN102692433B (zh) * | 2012-06-12 | 2015-05-20 | 中北大学 | 一种传感器极板柔性组合电容层析成像数据获取*** |
CN103679163B (zh) * | 2012-09-18 | 2017-03-22 | 成都方程式电子有限公司 | 新型电容式指纹图像采集*** |
FI126999B (en) * | 2014-01-17 | 2017-09-15 | Murata Manufacturing Co | Improved pressure sensor |
CN103792267B (zh) * | 2014-02-19 | 2015-12-02 | 苏州能斯达电子科技有限公司 | 一种差分电容式湿度传感器 |
CN103792268B (zh) * | 2014-02-19 | 2015-12-09 | 苏州能斯达电子科技有限公司 | 一种差分电容式氢气传感器 |
CN105140146A (zh) * | 2015-07-16 | 2015-12-09 | 北京工业大学 | 一种大尺寸磨削晶圆厚度在线测量方法 |
CN113557419A (zh) | 2019-03-13 | 2021-10-26 | 株式会社村田制作所 | 压力传感器 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0302241B1 (de) * | 1987-08-06 | 1994-01-26 | Siemens Aktiengesellschaft | Spannungsmessung mit einer Elektronensonde ohne externes Triggersignal |
US5091691A (en) * | 1988-03-21 | 1992-02-25 | Semitest, Inc. | Apparatus for making surface photovoltage measurements of a semiconductor |
JPH06145384A (ja) * | 1992-11-05 | 1994-05-24 | Kao Corp | 帯電防止膜の形成方法 |
US5424650A (en) * | 1993-09-24 | 1995-06-13 | Rosemont Inc. | Capacitive pressure sensor having circuitry for eliminating stray capacitance |
JP3447062B2 (ja) * | 1998-03-12 | 2003-09-16 | 株式会社山武 | センサおよびその製造方法 |
US6097195A (en) * | 1998-06-02 | 2000-08-01 | Lucent Technologies Inc. | Methods and apparatus for increasing metal density in an integrated circuit while also reducing parasitic capacitance |
JP4124867B2 (ja) * | 1998-07-14 | 2008-07-23 | 松下電器産業株式会社 | 変換装置 |
CN2390194Y (zh) * | 1999-06-22 | 2000-08-02 | 大连理工大学 | 自举差动电容传感器 |
US6860154B2 (en) * | 2001-01-16 | 2005-03-01 | Fujikura Ltd. | Pressure sensor and manufacturing method thereof |
EP1407464B1 (en) * | 2001-07-17 | 2011-03-09 | SMC Kabushiki Kaisha | Micro-electromechanical sensor |
JP4035418B2 (ja) * | 2001-10-31 | 2008-01-23 | 株式会社本田電子技研 | 近接スイッチおよび物体検出装置 |
FI115109B (fi) * | 2003-01-22 | 2005-02-28 | Nokia Corp | Tunnistusjärjestely ja tunnistusjärjestelyn käsittävä matkaviestin |
JP4463653B2 (ja) * | 2004-05-10 | 2010-05-19 | 株式会社フジクラ | ハイブリッドセンサ |
-
2004
- 2004-02-13 JP JP2004037334A patent/JP3930862B2/ja not_active Expired - Lifetime
-
2005
- 2005-02-14 WO PCT/JP2005/002165 patent/WO2005078404A1/ja active Application Filing
- 2005-02-14 US US10/589,350 patent/US20070194395A1/en not_active Abandoned
- 2005-02-14 CN CNB2005800006204A patent/CN100422707C/zh not_active Expired - Fee Related
- 2005-02-14 TW TW094104275A patent/TW200538712A/zh unknown
- 2005-02-14 EP EP05710167A patent/EP1719994A4/en not_active Withdrawn
- 2005-02-14 KR KR1020067004060A patent/KR100894660B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR100894660B1 (ko) | 2009-04-24 |
CN100422707C (zh) | 2008-10-01 |
EP1719994A4 (en) | 2007-02-21 |
KR20060061364A (ko) | 2006-06-07 |
JP2005227182A (ja) | 2005-08-25 |
EP1719994A1 (en) | 2006-11-08 |
TW200538712A (en) | 2005-12-01 |
US20070194395A1 (en) | 2007-08-23 |
CN1820191A (zh) | 2006-08-16 |
WO2005078404A1 (ja) | 2005-08-25 |
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