CA3098911A1 - Pressure port for ultrasonic transducer on cmos sensor - Google Patents
Pressure port for ultrasonic transducer on cmos sensor Download PDFInfo
- Publication number
- CA3098911A1 CA3098911A1 CA3098911A CA3098911A CA3098911A1 CA 3098911 A1 CA3098911 A1 CA 3098911A1 CA 3098911 A CA3098911 A CA 3098911A CA 3098911 A CA3098911 A CA 3098911A CA 3098911 A1 CA3098911 A1 CA 3098911A1
- Authority
- CA
- Canada
- Prior art keywords
- ultrasonic transducer
- pressure
- ultrasound device
- micromachined ultrasonic
- pressure ports
- 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.)
- Pending
Links
- 238000002604 ultrasonography Methods 0.000 claims abstract description 33
- 239000012528 membrane Substances 0.000 claims abstract description 24
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- 239000000758 substrate Substances 0.000 claims description 9
- 239000000523 sample Substances 0.000 claims description 2
- 239000011800 void material Substances 0.000 claims 2
- 239000011343 solid material Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 21
- 230000008569 process Effects 0.000 description 12
- 239000000463 material Substances 0.000 description 7
- 238000001020 plasma etching Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000000708 deep reactive-ion etching Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000000137 annealing Methods 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000005247 gettering Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000011797 cavity material Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 229910021419 crystalline silicon Inorganic materials 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000006187 pill Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000000992 sputter etching Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/0292—Electrostatic transducers, e.g. electret-type
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/12—Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
- A61B8/4444—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device related to the probe
- A61B8/4455—Features of the external shape of the probe, e.g. ergonomic aspects
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
- A61B8/4483—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device characterised by features of the ultrasound transducer
- A61B8/4494—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device characterised by features of the ultrasound transducer characterised by the arrangement of the transducer elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/0207—Driving circuits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
- B06B1/0607—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements
- B06B1/0622—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements on one surface
-
- 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
- G01N29/2406—Electrostatic or capacitive probes, e.g. electret or cMUT-probes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/20—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators
- H10N30/204—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators using bending displacement, e.g. unimorph, bimorph or multimorph cantilever or membrane benders
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/20—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators
- H10N30/204—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators using bending displacement, e.g. unimorph, bimorph or multimorph cantilever or membrane benders
- H10N30/2047—Membrane type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
- B06B2201/20—Application to multi-element transducer
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
- Heart & Thoracic Surgery (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Biophysics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Biomedical Technology (AREA)
- Surgery (AREA)
- Medical Informatics (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- Immunology (AREA)
- General Physics & Mathematics (AREA)
- Gynecology & Obstetrics (AREA)
- Micromachines (AREA)
- Transducers For Ultrasonic Waves (AREA)
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201862666556P | 2018-05-03 | 2018-05-03 | |
| US62/666,556 | 2018-05-03 | ||
| US201862696305P | 2018-07-10 | 2018-07-10 | |
| US62/696,305 | 2018-07-10 | ||
| PCT/US2019/030388 WO2019213388A1 (en) | 2018-05-03 | 2019-05-02 | Pressure port for ultrasonic transducer on cmos sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA3098911A1 true CA3098911A1 (en) | 2019-11-07 |
Family
ID=68384340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA3098911A Pending CA3098911A1 (en) | 2018-05-03 | 2019-05-02 | Pressure port for ultrasonic transducer on cmos sensor |
Country Status (9)
| Country | Link |
|---|---|
| US (2) | US12053323B2 (https=) |
| EP (1) | EP3788798B1 (https=) |
| JP (1) | JP2021522734A (https=) |
| KR (1) | KR20210005208A (https=) |
| CN (1) | CN112075090B (https=) |
| AU (1) | AU2019263404A1 (https=) |
| CA (1) | CA3098911A1 (https=) |
| TW (1) | TW202000137A (https=) |
| WO (1) | WO2019213388A1 (https=) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3233311B1 (en) * | 2014-12-21 | 2021-12-08 | Chirp Microsystems, Inc. | Piezoelectric micromachined ultrasonic transducers with low stress sensitivity and methods of fabrication |
| AU2019350989A1 (en) | 2018-09-28 | 2021-03-25 | Butterfly Network, Inc. | Fabrication techniques and structures for gettering materials in ultrasonic transducer cavities |
| CA3118563A1 (en) | 2018-11-13 | 2020-05-22 | Butterfly Network, Inc. | Getter technology for micromachined ultrasonic transducer cavities |
| WO2020102492A1 (en) | 2018-11-15 | 2020-05-22 | Butterfly Network, Inc. | Anti-stiction bottom cavity surface for micromachined ultrasonic transducer devices |
| TW202045099A (zh) | 2019-02-07 | 2020-12-16 | 美商蝴蝶網路公司 | 用於微加工超音波傳感器裝置的雙層金屬電極 |
| US11583894B2 (en) | 2019-02-25 | 2023-02-21 | Bfly Operations, Inc. | Adaptive cavity thickness control for micromachined ultrasonic transducer devices |
| CN114555248A (zh) | 2019-04-12 | 2022-05-27 | 布弗莱运营公司 | 用于微加工超声换能器器件的分段式吸气剂开口 |
| US11484911B2 (en) | 2019-04-12 | 2022-11-01 | Bfly Operations, Inc. | Bottom electrode via structures for micromachined ultrasonic transducer devices |
| US11501562B2 (en) | 2019-04-30 | 2022-11-15 | Bfly Operations, Inc. | Ultrasound face scanning and identification apparatuses and methods |
| FR3097091B1 (fr) * | 2019-06-07 | 2021-07-23 | Commissariat Energie Atomique | dispositif pourvu d’une pluralité de résonateurs présentant collectivement un facteur de qualité amélioré |
| US11684951B2 (en) | 2019-08-08 | 2023-06-27 | Bfly Operations, Inc. | Micromachined ultrasonic transducer devices having truncated circle shaped cavities |
| US11988640B2 (en) | 2020-03-11 | 2024-05-21 | Bfly Operations, Inc. | Bottom electrode material stack for micromachined ultrasonic transducer devices |
| TWI742603B (zh) | 2020-04-09 | 2021-10-11 | 伊諾司生技股份有限公司 | 一種具有空腔的感測器 |
| US20210328564A1 (en) | 2020-04-16 | 2021-10-21 | Butterfly Network, Inc. | Methods and circuitry for built-in self-testing of circuitry and/or transducers in ultrasound devices |
| US20210403321A1 (en) * | 2020-06-30 | 2021-12-30 | Butterfly Network, Inc. | Formation of self-assembled monolayer for ultrasonic transducers |
| JP2023549917A (ja) | 2020-11-19 | 2023-11-29 | カトリーケ・ユニフェルシテイト・ルーヴァン | 超音波トランスデューサアレイデバイス |
| TW202239483A (zh) | 2021-03-04 | 2022-10-16 | 美商蝴蝶營運公司 | 具有不均勻柱腳的電容式微加工超音波換能器 |
| TW202240165A (zh) | 2021-03-04 | 2022-10-16 | 美商蝴蝶營運公司 | 具有柱腳的微加工超音波換能器 |
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-
2019
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| CN112075090B (zh) | 2022-10-14 |
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