EP1790419A3 - Capacitive ultrasonic transducer and method of fabricating the same - Google Patents
Capacitive ultrasonic transducer and method of fabricating the same Download PDFInfo
- Publication number
- EP1790419A3 EP1790419A3 EP06013590A EP06013590A EP1790419A3 EP 1790419 A3 EP1790419 A3 EP 1790419A3 EP 06013590 A EP06013590 A EP 06013590A EP 06013590 A EP06013590 A EP 06013590A EP 1790419 A3 EP1790419 A3 EP 1790419A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- electrode
- ultrasonic transducer
- capacitive ultrasonic
- same
- fabricating
- 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.)
- Withdrawn
Links
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transducers For Ultrasonic Waves (AREA)
Abstract
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200510123960 | 2005-11-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1790419A2 EP1790419A2 (en) | 2007-05-30 |
EP1790419A3 true EP1790419A3 (en) | 2010-05-12 |
Family
ID=37846053
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06013590A Withdrawn EP1790419A3 (en) | 2005-11-24 | 2006-06-30 | Capacitive ultrasonic transducer and method of fabricating the same |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1790419A3 (en) |
CN (1) | CN102225389B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110510573B (en) * | 2019-08-30 | 2023-01-10 | 中国科学院深圳先进技术研究院 | Capacitive micro-mechanical ultrasonic transducer and preparation method and application thereof |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1975801A (en) * | 1930-12-15 | 1934-10-09 | Sound Lab Corp Ltd | Microphone |
US4432007A (en) * | 1978-11-08 | 1984-02-14 | General Electric Company | Ultrasonic transducer fabricated as an integral part of a monolithic integrated circuit |
EP1085784A2 (en) * | 1999-09-16 | 2001-03-21 | Sanyo Electric Co., Ltd. | Semiconductor device, semiconductor electret condenser microphone, and method of producing semiconductor electret condenser microphone |
JP2005027186A (en) * | 2003-07-04 | 2005-01-27 | Seiko Epson Corp | Ultrasonic conversion apparatus |
WO2005077012A2 (en) * | 2004-02-06 | 2005-08-25 | Georgia Tech Research Corporation | Cmut devices and fabrication methods |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5423220A (en) * | 1993-01-29 | 1995-06-13 | Parallel Design | Ultrasonic transducer array and manufacturing method thereof |
KR100935934B1 (en) * | 2003-03-15 | 2010-01-11 | 삼성전자주식회사 | Emitter for electron-beam projection lithography system and method of manufacturing thereof |
JP4044090B2 (en) * | 2003-12-26 | 2008-02-06 | シャープ株式会社 | Color filter substrate, liquid crystal display device including the same, and method for manufacturing color filter substrate |
JP4123192B2 (en) * | 2004-06-03 | 2008-07-23 | セイコーエプソン株式会社 | Ultrasonic transducer and method of manufacturing ultrasonic transducer |
-
2006
- 2006-06-30 EP EP06013590A patent/EP1790419A3/en not_active Withdrawn
- 2006-11-22 CN CN 201110099228 patent/CN102225389B/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1975801A (en) * | 1930-12-15 | 1934-10-09 | Sound Lab Corp Ltd | Microphone |
US4432007A (en) * | 1978-11-08 | 1984-02-14 | General Electric Company | Ultrasonic transducer fabricated as an integral part of a monolithic integrated circuit |
EP1085784A2 (en) * | 1999-09-16 | 2001-03-21 | Sanyo Electric Co., Ltd. | Semiconductor device, semiconductor electret condenser microphone, and method of producing semiconductor electret condenser microphone |
JP2005027186A (en) * | 2003-07-04 | 2005-01-27 | Seiko Epson Corp | Ultrasonic conversion apparatus |
WO2005077012A2 (en) * | 2004-02-06 | 2005-08-25 | Georgia Tech Research Corporation | Cmut devices and fabrication methods |
Also Published As
Publication number | Publication date |
---|---|
CN102225389A (en) | 2011-10-26 |
CN102225389B (en) | 2013-09-18 |
EP1790419A2 (en) | 2007-05-30 |
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RIC1 | Information provided on ipc code assigned before grant |
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17P | Request for examination filed |
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AKX | Designation fees paid |
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STAA | Information on the status of an ep patent application or granted ep patent |
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18D | Application deemed to be withdrawn |
Effective date: 20130103 |