Patent attributes
A liquid droplet discharging piezoelectric device 1 provided with a cavity member 11 with a built-in cavity 3; an introduction member 13 having introduction channel 5 connecting with the cavity 3; and a nozzle member 12 having nozzle channel 4 connecting with the cavity 3 on a side opposite to the channel 5. This liquid droplet discharging piezoelectric device 1 is provided with an introduction port 6, attached to the introduction member 13, capable of introducing a liquid into the cavity 3 via the introduction channel 5, and a discharge port 7, attached to the nozzle member 12, capable of discharging as droplets a liquid filled in the cavity 3 via the nozzle channel 40. Even in a case where an amount of liquid droplets is of a nanoliter (nl) order, excellent stability and reproducibility are attained, and the unit can stably be operated when attached to an apparatus.
