40 MHz piezo-composite linear array and integration in a high resolution system

Evolution of high resolution ultrasonic imaging is widely dependent on the development of efficient high frequency piezoelectric transducers. Nowadays, efforts are focused on the fabrication of linear arrays in the 40–50 MHz frequency range for dermatology, ophthalmology and small animals imaging. At these frequencies, technological aspects are predominant at several stages of the array fabrication due to typical dimensions of the constitutive elements (few tens of micrometers). Moreover, the development of the imaging system and associated beamforming specifically adapted is of primary interest to optimize the use of the corresponding array and consequently image quality.