Provided are: a structure whereby an increase of a drive voltage in a capacitive ultrasonic transducer can be suppressed, and an ultrasonic transmission sound pressure of a CMUT can be increased and a method for manufacturing the structure. The present invention is characterized in that capacitive ultrasonic transducer cells are laminated such that, when viewed from an upper surface of a first main surface of a substrate, hollow layer regions of all the lower layer ultrasonic transducer cells are included in a hollow layer region of the topmost layer ultrasonic transducer cell.
