Ultrasound transducer manufactured by using micromachining...

Electrical generator or motor structure – Non-dynamoelectric – Charge accumulating

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C310S334000

Reexamination Certificate

active

07982362

ABSTRACT:
An ultrasound transducer manufactured by using a micromachining process comprises: a first electrode into which a control signal for transmitting ultrasound is input; a substrate on which the first electrode is formed; a second electrode that is a ground electrode facing the first electrode with a prescribed space between the first and second electrodes; a membrane on which the second electrode is formed and which vibrates and generates the ultrasound when a voltage is applied between the first and second electrodes; a piezoelectric film contacting the membrane; and a third electrode electrically continuous to the piezoelectric film.

REFERENCES:
patent: 4356422 (1982-10-01), van Maanen
patent: 6069698 (2000-05-01), Ozawa et al.
patent: 6262946 (2001-07-01), Khuri-Yakub et al.
patent: 6328696 (2001-12-01), Fraser
patent: 6328697 (2001-12-01), Fraser
patent: 6836159 (2004-12-01), Wodnicki
patent: 6865140 (2005-03-01), Thomenius et al.
patent: 2003/0011285 (2003-01-01), Ossmann
patent: 2004/0267134 (2004-12-01), Hossack et al.
patent: 2005/0162040 (2005-07-01), Robert
patent: 07-274287 (1995-10-01), None
patent: 08-274573 (1996-10-01), None
patent: 2004-503313 (2004-02-01), None
patent: 2004-274756 (2004-09-01), None
patent: 2004-350705 (2004-12-01), None
patent: WO 01/97562 (2001-12-01), None
Itoh T., “Onkyo Kogaku Genron” (vol. 1), 12thedition, Kabushiki Kaisha Korona sha, pp. 149-152 (Dec. 10, 1980).
Akasheh, F., et al., “Piezoelectric Micromachined Ultrasonic Transducers: Modeling the Influence of Structural Parameters on Device Performance”,IEEE Transactions on Ultrasonics, Ferroelectronics, and Frequency Control, 52(3):455-468 (2005).
Wang, Z., et al., “Fabrication and Characterization of Piezoelectric Micromachined Ultrasonic Transducers with Thick Composite PZT Films”,IEEE Transactions on Ultrasonics, Ferroelectronics, and Frequency Control, 52(12):2289-2297 (2005).
Guldiken, R., et al., “CMUTS with Dual-Electrode Structure for Improved Transmit and Receive Performance”,IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 53(2):483-491 (2006).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Ultrasound transducer manufactured by using micromachining... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ultrasound transducer manufactured by using micromachining..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultrasound transducer manufactured by using micromachining... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2725543

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.