Our Technique with cMUT at Stanford
	2D schematic of a  capacitive micromachined ultrasound transducer
							2D array
		•  AC voltage generates pressure wave – Emitter •  Changing capacitance generates current – Receiver Promises: •  Electronic integration for portable design •  Faster response time than thin film PZT •  Broad bandwidth, high sensitivity and low mechanical   impedance Challenge:  PACKAGING!