ULTRASOUND TRANSDUCER AND METHOD FOR MANUFACTURING AN ULTRASOUND TRANSDUCER

摘要

An ultrasound transducer includes an acoustic layer that includes a micromachined piezoelectric composite body having a front side and an opposite back side. The micromachined piezoelectric composite body is configured to convert electrical signals into ultrasound waves to be transmitted from the front side toward a target. The micromachined piezoelectric composite body is configured to convert received ultrasound waves into electrical signals. A dematching layer is connected to the back side of the micromachined piezoelectric composite body of the acoustic layer. The dematching layer has a higher acoustic impedance than an acoustic impedance of the acoustic layer.

主权项

1. An ultrasound transducer comprising:
an acoustic layer comprising a micromachined piezoelectric composite body having a front side and an opposite back side, the micromachined piezoelectric composite body being configured to convert electrical signals into ultrasound waves to be transmitted from the front side toward a target, the micromachined piezoelectric composite body being configured to convert received ultrasound waves into electrical signals; and a dematching layer connected to the back side of the micromachined piezoelectric composite body of the acoustic layer, the dematching layer having a higher acoustic impedance than an acoustic impedance of the acoustic layer.