Patent ID: 8414110

Claim:
An inkjet head, comprising: a channel substrate having a plurality of individual liquid chambers arranged in a shorter-side direction thereof, the individual liquid chambers being separated by a plurality of liquid chamber partition walls and communicating with ink supply openings; a plurality of diaphragms defining surfaces of the individual liquid climbers facing toward nozzle openings; a plurality of actuators formed on the diaphragms, wherein each of the actuators includes a lower electrode, a piezoelectric element, and an upper electrode that are stacked in layers; a plurality of individual electrode interconnects led out from the upper electrodes of the actuators, the individual electrode interconnects being connected to the corresponding upper electrodes on a nozzle opening side and on an ink supply opening side of the upper electrodes, the individual electrode interconnects being formed in regions where the liquid chamber partition walls are formed; and a holding substrate having a plurality of vibration chambers and a plurality of partition walls separating the vibration chambers, the vibration chambers being recesses corresponding to the diaphragms, the vibration chambers and the partition walls being arranged in a shorter-side direction of the holding substrate, wherein the partition walls of the holding substrate and the liquid chamber partition walls of the channel substrate are joined with the individual electrode interconnects interposed therebetween.