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Miniaturised ultrasound transducer arrays with integrated electronics will in future enable significant advances in high resolution medical imaging and in acoustic tweezing for bioscience research. However, their development has been limited by challenges in scaling down conventional piezoelectric ultrasound transducer fabrication and interconnection techniques. Piezoelectric thin film transducers...
Integration of a piezoelectric high frequency ultrasound (HFUS) array with a microfabricated application specific integrated circuit (ASIC) performing a range of functions has several advantages for ultrasound imaging. The number of signal cables between the array/electronics and the data acquisition / imaging system can be reduced, cutting costs and increasing functionality. Electrical impedance...
The proposed CMOS ultrasound transceiver chip will enable the development of portable high resolution, high-frequency ultrasonic imaging systems. The transceiver chip is designed for close-coupled MEMS transducer arrays which operate with a 3.3-V power supply. In addition, a transmit digital beamforming system architecture is supported in this work. A prototype chip containing 16 receive and transmit...
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