Patent ID: 8156620
Filing Date: 2012-04-17
Classification: B06B,H01L,Y10T

Abstract:
1. A method of producing an ultrasonic probe, comprising the steps of: superimposing an ultrasonic wave receiving organic piezoelectric element layer made of an organic material on an ultrasonic wave transmitting inorganic piezoelectric element layer made of an inorganic material, wherein the ultrasonic wave transmitting inorganic piezoelectric element layer is adapted to receive electric signals and emits ultrasonic waves to the outside of the ultrasonic probe in response to the electric signals, and the ultrasonic wave receiving organic piezoelectric element layer is adapted to receive ultrasonic waves from the outside of the ultrasonic probe and generates electric signals in response to the ultrasonic waves; and polarizing the ultrasonic wave receiving organic piezoelectric element layer and the ultrasonic wave transmitting inorganic piezoelectric element layer on a condition that the ultrasonic wave receiving organic piezoelectric element layer is superimposed on the ultrasonic wave transmitting inorganic piezoelectric element layer.