FR3120488B1 - Dispositif capteur a ondes acoustiques de surface - Google Patents

Dispositif capteur a ondes acoustiques de surface Download PDF

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Publication number
FR3120488B1
FR3120488B1 FR2102072A FR2102072A FR3120488B1 FR 3120488 B1 FR3120488 B1 FR 3120488B1 FR 2102072 A FR2102072 A FR 2102072A FR 2102072 A FR2102072 A FR 2102072A FR 3120488 B1 FR3120488 B1 FR 3120488B1
Authority
FR
France
Prior art keywords
sensor device
acoustic wave
wave sensor
surface acoustic
reflection
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.)
Active
Application number
FR2102072A
Other languages
English (en)
Other versions
FR3120488A1 (fr
Inventor
Sylvain Ballandras
Thierry Laroche
Julien Garcia
Emilie Courjon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Soitec SA
Original Assignee
Frecnsys SAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Frecnsys SAS filed Critical Frecnsys SAS
Priority to FR2102072A priority Critical patent/FR3120488B1/fr
Priority to JP2023547061A priority patent/JP2024507713A/ja
Priority to PCT/EP2022/055371 priority patent/WO2022184815A1/fr
Priority to EP22708186.6A priority patent/EP4302400A1/fr
Publication of FR3120488A1 publication Critical patent/FR3120488A1/fr
Application granted granted Critical
Publication of FR3120488B1 publication Critical patent/FR3120488B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/02—Analysing fluids
    • G01N29/022—Fluid sensors based on microsensors, e.g. quartz crystal-microbalance [QCM], surface acoustic wave [SAW] devices, tuning forks, cantilevers, flexural plate wave [FPW] devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/22—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using measurement of acoustic effects
    • G01K11/26—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using measurement of acoustic effects of resonant frequencies
    • G01K11/265—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using measurement of acoustic effects of resonant frequencies using surface acoustic wave [SAW]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/24—Probes
    • G01N29/2462—Probes with waveguides, e.g. SAW devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02543—Characteristics of substrate, e.g. cutting angles
    • H03H9/02551—Characteristics of substrate, e.g. cutting angles of quartz substrates
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02543—Characteristics of substrate, e.g. cutting angles
    • H03H9/02559—Characteristics of substrate, e.g. cutting angles of lithium niobate or lithium-tantalate substrates
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02543—Characteristics of substrate, e.g. cutting angles
    • H03H9/02574—Characteristics of substrate, e.g. cutting angles of combined substrates, multilayered substrates, piezoelectrical layers on not-piezoelectrical substrate
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/64—Filters using surface acoustic waves
    • H03H9/6423—Means for obtaining a particular transfer characteristic
    • H03H9/6433—Coupled resonator filters
    • H03H9/644—Coupled resonator filters having two acoustic tracks
    • H03H9/6456—Coupled resonator filters having two acoustic tracks being electrically coupled
    • H03H9/6459—Coupled resonator filters having two acoustic tracks being electrically coupled via one connecting electrode
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/64—Filters using surface acoustic waves
    • H03H9/6423—Means for obtaining a particular transfer characteristic
    • H03H9/6433—Coupled resonator filters
    • H03H9/644—Coupled resonator filters having two acoustic tracks
    • H03H9/6456—Coupled resonator filters having two acoustic tracks being electrically coupled
    • H03H9/6469—Coupled resonator filters having two acoustic tracks being electrically coupled via two connecting electrodes
    • H03H9/6476—Coupled resonator filters having two acoustic tracks being electrically coupled via two connecting electrodes the tracks being electrically parallel
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/042—Wave modes
    • G01N2291/0423—Surface waves, e.g. Rayleigh waves, Love waves

Abstract

La présente invention concerne un dispositif capteur à ondes acoustiques, comprenant un premier transducteur interdigité, une première structure de réflexion, une deuxième structure de réflexion, une première cavité de résonance comprenant une première surface supérieure et formée entre le premier transducteur interdigité et la première structure de réflexion, et une deuxième cavité de résonance comprenant une deuxième surface supérieure et formée entre le premier transducteur interdigité et la deuxième structure de réflexion, et dans lequel au moins une des première et deuxième surfaces supérieures est recouverte au moins partiellement par une couche de métallisation ou une couche de passivation. Figure pour l’abrégé : Figure 2a
FR2102072A 2021-03-03 2021-03-03 Dispositif capteur a ondes acoustiques de surface Active FR3120488B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR2102072A FR3120488B1 (fr) 2021-03-03 2021-03-03 Dispositif capteur a ondes acoustiques de surface
JP2023547061A JP2024507713A (ja) 2021-03-03 2022-03-03 表面弾性波センサデバイス
PCT/EP2022/055371 WO2022184815A1 (fr) 2021-03-03 2022-03-03 Dispositif capteur d'ondes acoustiques de surface
EP22708186.6A EP4302400A1 (fr) 2021-03-03 2022-03-03 Dispositif capteur d'ondes acoustiques de surface

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2102072A FR3120488B1 (fr) 2021-03-03 2021-03-03 Dispositif capteur a ondes acoustiques de surface
FR2102072 2021-03-03

Publications (2)

Publication Number Publication Date
FR3120488A1 FR3120488A1 (fr) 2022-09-09
FR3120488B1 true FR3120488B1 (fr) 2023-09-15

Family

ID=76283843

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2102072A Active FR3120488B1 (fr) 2021-03-03 2021-03-03 Dispositif capteur a ondes acoustiques de surface

Country Status (4)

Country Link
EP (1) EP4302400A1 (fr)
JP (1) JP2024507713A (fr)
FR (1) FR3120488B1 (fr)
WO (1) WO2022184815A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3094484B1 (fr) * 2019-03-29 2021-07-16 Frecnsys Dispositif résonateur
FR3100330A1 (fr) * 2019-09-04 2021-03-05 Frec'n'sys Capteurs de pression à ondes acoustiques différentiels
WO2024027920A1 (fr) * 2022-08-05 2024-02-08 Huawei Technologies Co., Ltd. Procédé de fabrication d'un résonateur à ondes acoustiques de surface

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2785473B1 (fr) * 1998-10-30 2001-01-26 Thomson Csf Filtre faibles pertes a ondes acoustiques de surface sur substrat de quartz de coupe optimisee
US20040244466A1 (en) * 2003-06-06 2004-12-09 Chi-Yen Shen Ammonia gas sensor and its manufacturing method
US7205701B2 (en) * 2004-09-03 2007-04-17 Honeywell International Inc. Passive wireless acoustic wave chemical sensor
JP5956901B2 (ja) * 2011-12-22 2016-07-27 日本無線株式会社 被測定物特性測定装置
CN104768113B (zh) * 2015-03-20 2018-05-18 南京航空航天大学 一种用于液体多参数传感的乐甫波器件结构及检测方法
FR3039708B1 (fr) 2015-07-31 2019-08-09 Senseor Resonateur a ondes elastiques de surface simple port sur substrat a forte permittivite
WO2019094388A1 (fr) * 2017-11-07 2019-05-16 Resonant Inc. Capteur saw à bande ultra-large comprenant un réflecteur gravé à modulation de fréquence hyperbolique
KR20210058824A (ko) * 2018-07-27 2021-05-24 프렉엔시스 공동 공진 saw 필터

Also Published As

Publication number Publication date
FR3120488A1 (fr) 2022-09-09
EP4302400A1 (fr) 2024-01-10
WO2022184815A1 (fr) 2022-09-09
JP2024507713A (ja) 2024-02-21

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