Ultrasonic device and ultrasonic apparatus

An ultrasonic device comprising:

• nine ultrasonic array units arranged in a grid pattern of three rows and three columns, the grid pattern being rectangular;
• pluralities of ultrasonic transducers arranged in two-dimensional array forms in the respective ultrasonic array units so that the ultrasonic array units are rectangular;
• nine drive wires that input and output drive signals to and from the respective ultrasonic array units;
• a first section of common wire to which a common potential is applied, coupled to eight of the ultrasonic array units of the nine ultrasonic array units;
• a second section of common wire coupled to the ultrasonic array unit to which the first section of common wire is not coupled;
• and
• a third section of common wire coupling the first section of common wire and the section of second common wire, wherein
• one of the drive wires, the first section of common wire, and the second section of common wire is between and parallel to a side of each of the ultrasonic array units that are adjacent to each other in each of the three rows,
• one of the drive wires, the first section of common wire, and the second section of common wire is between and parallel to a side of each of the ultrasonic array units that are adjacent to each other in each of the three columns, and
• the third section of common wire is inside of the ultrasonic array unit adjacent to the ultrasonic array unit coupled to the second section of common wire.