Ultrasound transducer module and ultrasound endoscope

An ultrasound endoscope comprising:

• an insertion portion having a distal end with an ultrasound transducer module, the ultrasound transducer module comprising:
• an ultrasound transducer configured to transmit and receive ultrasound;
• a substrate electrically connected with the ultrasound transducer, the substrate including a first wiring pad and a connection portion for connecting the substrate to the ultrasound transducer, the first wiring pad and the connection portion being arranged on the substrate at different positions from each other;
• and
• a casing configured to accommodate the ultrasound transducer and the substrate therein, the casing comprising:
• an accommodation hole formed in the casing for accommodating the ultrasound transducer and the substrate,
• a holding hole by which the substrate is partially held, the holding hole being continuous with the accommodation hole,
• a plurality of electrode pads provided on an outer surface of the casing, and
• a plurality of second wiring pads provided in the holding hole, each second wiring pad being electrically connected with a corresponding electrode pad among the plurality of electrode pads, and electrically connected with the first wiring pad;
• the insertion portion being configured to be inserted into a subject;
• and
• a cable electrically connected to the ultrasound transducer module.