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Electret acoustic transducer array for computerized ultrasound risk evaluation system

United States Patent

August 9, 2005
View the Complete Patent at the US Patent & Trademark Office
An electret-based acoustic transducer array is provided and may be used in a system for examining tissue. The acoustic transducer array is formed with a substrate that has a multiple distinct cells formed therein. Within each of the distinct cells is positioned an acoustic transducing element formed of an electret material. A conductive membrane is formed over the distinct cells and may be flexible.
Moore; Thomas L. (Livermore, CA), Fisher; Karl A. (Brentwood, CA)
Barbara Ann Karmanos Cancer Institute (Detroit, MI)
10/ 323,718
December 18, 2002
STATEMENT AS TO RIGHTS TO INVENTIONS MADE UNDER FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT The Government has rights in this invention pursuant to U.S. Dept. of Energy Work for Others Agreement L-8420.