NDLI: Sol-gel PZT thick films for ultrasonic imaging

Content Provider	IEEE Xplore Digital Library
Author	Lukacs, M. Sayer, M. Knapik, D.A. Candela, R. Foster, F.S.
Copyright Year	1995
Description	Author affiliation: Dept. of Phys., Queen's Univ., Kingston, Ont., Canada (Lukacs, M.)
Abstract	Ultrasound transducers for B-mode medical imaging are typically operated between 1 and 10 MHz. Research has been directed towards developing transducers that are sensitive in the 10-100 MHz range because a number of clinical problems require higher resolution than can be achieved at the lower frequencies. Using a modified sol-gel technique developed at Queen's University, lead zirconate titanate (PZT) thin films of 45/spl plusmn/5 /spl mu/m in thickness have been successfully coated on aluminum foil. The technique allows the fabrication of thin films of arbitrary thickness in the range of 1 to 60 /spl mu/m. This PZT provides an alternative transducer material in the 10-100 MHz range and may also produce sensitive transducers operating above 100 MHz. This will increase the available resolution of ultrasound backscatter microscopy and narrows the gap between lower resolution clinical systems and high resolution transmission scanning acoustic microscopy. The evaluation of the electrical and mechanical properties of these PZT films and the ability to pattern them are described.
Starting Page	615
Ending Page	616
File Size	245255
Page Count	2
File Format	PDF
ISBN	0780324757
DOI	10.1109/IEMBS.1995.575277
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1995-09-20
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Thick films Ultrasonic imaging Ultrasonic transducers Biomedical transducers Transistors Acoustic transducers Microscopy Biomedical imaging Frequency Titanium compounds
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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