KR102121137B1 - 용량성 미세 기계화된 초음파 트랜스듀서들(cmut들)의 바이어싱 및 관련 장치 및 방법들 - Google Patents
용량성 미세 기계화된 초음파 트랜스듀서들(cmut들)의 바이어싱 및 관련 장치 및 방법들 Download PDFInfo
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- KR102121137B1 KR102121137B1 KR1020187018266A KR20187018266A KR102121137B1 KR 102121137 B1 KR102121137 B1 KR 102121137B1 KR 1020187018266 A KR1020187018266 A KR 1020187018266A KR 20187018266 A KR20187018266 A KR 20187018266A KR 102121137 B1 KR102121137 B1 KR 102121137B1
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- 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
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- 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
-
- 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
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- 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
- A61B8/4488—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device characterised by features of the ultrasound transducer the transducer being a phased array
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- 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
- B06B1/0611—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 in a pile
- B06B1/0614—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 in a pile for generating several frequencies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Micromachines (AREA)
Abstract
Description
도 1은 비한정적인 실시예에 따라 복수의 CMUT 바이어스 영역을 포함하는 초음파 디바이스의 톱다운 뷰(top-down view)를 도시한다.
도 2는 비한정적인 실시예에 따른 CMUT의 단면도이다.
도 3은 비한정적인 실시예에 따른 공통 막을 공유하는 도 2에 도시된 유형의 복수의 CMUT의 단면도이다.
도 4는 비한정적인 실시예에 따른 도 1에 예시된 유형의 복수의 초음파 디바이스를 포함하는 웨이퍼의 톱다운 뷰이다.
도 5는 비한정적인 실시예에 따른 복수의 전압원 및 검출 회로와 함께 도 1에 예시된 유형의 초음파 디바이스의 톱다운 뷰이다.
Claims (13)
- 초음파 디바이스로서,
기판;
상기 기판과 통합되고 제1 그룹의 초음파 트랜스듀서들 및 제2 그룹의 초음파 트랜스듀서들을 포함하는 복수의 초음파 트랜스듀서; 및
복수의 개별적으로 전기적으로 제어 가능한 바이어스 전극을 포함하고,
상기 복수의 개별적으로 전기적으로 제어 가능한 바이어스 전극은,
상기 제1 그룹의 초음파 트랜스듀서들에 상응하고 상기 제1 그룹의 초음파 트랜스듀서들의 제1 공통 막(common membrane)을 포함하는 제1 바이어스 전극, 및 상기 제2 그룹의 초음파 트랜스듀서들에 상응하고 상기 제2 그룹의 초음파 트랜스듀서들의 제2 공통 막을 포함하는 제2 바이어스 전극을 포함하고,
상기 복수의 초음파 트랜스듀서 각각은 상부 전극 및 하부 전극과 연관되고, 상기 상부 전극들의 수는 상기 하부 전극들의 수와 상이한, 초음파 디바이스. - 제1항에 있어서,
상기 제1 그룹의 초음파 트랜스듀서들은 용량성 미세 기계화된 초음파 트랜스듀서들(capacitive micromachined ultrasonic transducers)인, 초음파 디바이스. - 제2항에 있어서,
상기 기판은 반도체 다이이고, 상기 용량성 미세 기계화된 초음파 트랜스듀서들은 상기 반도체 다이와 모놀리식 통합되는(monolithically integrated), 초음파 디바이스. - 제2항에 있어서,
상기 기판은 20mm와 40mm 사이의 폭 및 2mm와 10mm 사이의 높이를 갖는 디바이스 표면을 가지고, 상기 복수의 개별적으로 전기적으로 제어 가능한 바이어스 전극은 상기 복수의 초음파 트랜스듀서의 각각의 그룹들에 상응하는 4개의 바이어스 전극 내지 10개의 바이어스 전극을 포함하는, 초음파 디바이스. - 제2항에 있어서,
상기 복수의 개별적으로 전기적으로 제어 가능한 바이어스 전극에 상응하는 복수의 바이어스 라인을 더 포함하고,
상기 복수의 바이어스 라인은, 상기 제1 바이어스 전극 및 제1 전원에 연결된 제1 바이어스 라인, 및 상기 제2 바이어스 전극 및 제2 전원에 연결된 제2 바이어스 라인을 포함하는, 초음파 디바이스. - 제1항에 있어서,
상기 기판과 통합되고 상기 제1 그룹의 초음파 트랜스듀서들의 전기적 응답을 검출하도록 구성된 검출 회로를 더 포함하는, 초음파 디바이스. - 제1항에 있어서,
상기 기판과 통합되고 상기 제1 및 제2 그룹의 초음파 트랜스듀서들에 연결된 집적 회로(integrated circuit)를 더 포함하는, 초음파 디바이스. - 기판 및 상기 기판과 통합된 복수의 초음파 트랜스듀서를 갖는 초음파 디바이스를 작동시키는 방법으로서,
제1 공통 막을 포함하는 제1 바이어스 전극을 제1 바이어스 전압에서 전기적으로 바이어싱하는 단계 - 상기 제1 바이어스 전극은 상기 복수의 초음파 트랜스듀서 중 제1 그룹의 초음파 트랜스듀서들에 상응함 -; 및
상기 제1 바이어스 전극을 바이어싱하는 동시에, 제2 공통 막을 포함하는 제2 바이어스 전극을 상기 제1 바이어스 전압과 다른 제2 바이어스 전압에서 전기적으로 바이어싱하는 단계 - 상기 제2 바이어스 전극은 상기 복수의 초음파 트랜스듀서 중 제2 그룹의 초음파 트랜스듀서들에 상응함 -
를 포함하고,
상기 복수의 초음파 트랜스듀서 각각은 상부 전극 및 하부 전극과 연관되고, 상기 상부 전극들의 수는 상기 하부 전극들의 수와 상이한, 방법. - 제8항에 있어서,
상기 제1 그룹의 초음파 트랜스듀서들은 용량성 미세 기계화된 초음파 트랜스듀서들인, 방법. - 제8항에 있어서,
상기 제1 바이어스 전극을 전기적으로 바이어싱하는 것에 응답하여, 상기 제1 그룹의 초음파 트랜스듀서들의 전기적 응답을 검출하는 단계를 더 포함하는, 방법. - 제8항에 있어서,
상기 제1 바이어스 전압은 상기 제2 바이어스 전압보다 30%까지 큰, 방법. - 제8항에 있어서,
상기 제1 바이어스 전극을 전기적으로 바이어싱하는 단계는 상기 기판과 통합된 집적 회로를 사용하여 수행되는, 방법. - 삭제
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/957,098 | 2015-12-02 | ||
| US14/957,098 US9987661B2 (en) | 2015-12-02 | 2015-12-02 | Biasing of capacitive micromachined ultrasonic transducers (CMUTs) and related apparatus and methods |
| PCT/US2016/064325 WO2017095988A1 (en) | 2015-12-02 | 2016-12-01 | Biasing of capacitive micromachined ultrasonic transducers (cmuts) and related apparatus and methods |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20180088696A KR20180088696A (ko) | 2018-08-06 |
| KR102121137B1 true KR102121137B1 (ko) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1020187018266A Expired - Fee Related KR102121137B1 (ko) | 2015-12-02 | 2016-12-01 | 용량성 미세 기계화된 초음파 트랜스듀서들(cmut들)의 바이어싱 및 관련 장치 및 방법들 |
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| Country | Link |
|---|---|
| US (2) | US9987661B2 (ko) |
| EP (1) | EP3383277B1 (ko) |
| JP (1) | JP2019504534A (ko) |
| KR (1) | KR102121137B1 (ko) |
| CN (1) | CN108366774A (ko) |
| AU (1) | AU2016365309B2 (ko) |
| CA (1) | CA3006505A1 (ko) |
| ES (1) | ES2909488T3 (ko) |
| TW (1) | TWI705858B (ko) |
| WO (1) | WO2017095988A1 (ko) |
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- 2016-12-01 AU AU2016365309A patent/AU2016365309B2/en not_active Ceased
- 2016-12-01 KR KR1020187018266A patent/KR102121137B1/ko not_active Expired - Fee Related
- 2016-12-01 TW TW105139669A patent/TWI705858B/zh not_active IP Right Cessation
- 2016-12-01 WO PCT/US2016/064325 patent/WO2017095988A1/en not_active Ceased
- 2016-12-01 CA CA3006505A patent/CA3006505A1/en not_active Abandoned
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Also Published As
| Publication number | Publication date |
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| TWI705858B (zh) | 2020-10-01 |
| US20170157646A1 (en) | 2017-06-08 |
| EP3383277A4 (en) | 2019-07-24 |
| CA3006505A1 (en) | 2017-06-08 |
| CN108366774A (zh) | 2018-08-03 |
| ES2909488T3 (es) | 2022-05-06 |
| AU2016365309A1 (en) | 2018-06-14 |
| US10272471B2 (en) | 2019-04-30 |
| EP3383277B1 (en) | 2022-02-02 |
| JP2019504534A (ja) | 2019-02-14 |
| WO2017095988A1 (en) | 2017-06-08 |
| TW201739521A (zh) | 2017-11-16 |
| AU2016365309B2 (en) | 2021-08-19 |
| EP3383277A1 (en) | 2018-10-10 |
| KR20180088696A (ko) | 2018-08-06 |
| US9987661B2 (en) | 2018-06-05 |
| US20180353995A1 (en) | 2018-12-13 |
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