Patent ID: 9258650
Filing Date: 2016-02-09
CPC Classification: B06B,B81B,H04R

Claim Text:
1. A capacitive electromechanical transducer comprising: a first substrate; a first diaphragm configured to oscillate by receiving an ultrasound; a first electrode on the first diaphragm; a second electrode that is disposed on a first surface side of the first substrate, wherein the ultrasound is detected based on a change of capacitance between the first electrode and the second electrode; a through line that is electrically connected to the second electrode and penetrates the first substrate; and a first electric connection portion that is provided on a second surface side of the first substrate, the first and second surfaces being opposite surfaces of the first substrate, and electrically connected to the through line, wherein the first diaphragm is provided so as to interpose a cavity between the first diaphragm and the second electrode, and wherein the first diaphragm covers the through line and the first electric connection portion with respect to a thickness direction of the first substrate so as to reduce the ultrasound traveling to the through line and the first electric connection portion.