Koninklijke Philips Corporation N.v.

Carl Dean Herickhoff

Wojtek Sudol

George Anthony Brock-Fisher

Richard Edward Davidsen

Bout Marcelis

Junho Song

The invention relates to a capacitive micro-machined ultrasound transducer (CMUT) cell () comprising a cell floor () having a first electrode (); a cell membrane () having a second electrode (') which opposes the first electrode and vibrates during transmission or reception of acoustic energy; a transmitter/receiver coupled to the first and second electrodes which causes the cell membrane to vibrate at an acoustic frequency and/or receives signals at an acoustic frequency; and an acoustic lens (), overlaying the cell membrane, and having an inner surface opposing the cell membrane and an outer, patient-facing surface. According to the present invention the acoustic lens comprises at least one layer of a material selected from the group of: polybudatiene, polyether block amide (PEBAX), polydimethylsiloxane (PDMS) and buthylrubber.

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Eindhoven, Netherlands

Carl Dean Herickhoff