Patent ID: 9698705
Date: 2017-07-04
CPC Classifications: B06B,G01N,H02N

Claim:
1. An electromechanical transducer device, comprising: a first substrate having electromechanical transducer elements configured to provide conversion between acoustic waves and electric signals, two-dimensionally arrayed on a first surface side of the first substrate; an electric wiring substrate that is a second substrate electrically connected with the electromechanical transducer elements, and is located on a second surface side being a back side of the first surface which is opposite the first surface side of the first substrate; and a first acoustic matching layer provided between the first substrate and the second substrate, containing electrically connecting parts between the first substrate and the second substrate, wherein the first acoustic matching layer having an acoustic impedance larger than that of the second substrate such that a reflection of an acoustic wave entering from the first substrate is restricted.