Patent ID: 6941624

Claim:
A method of manufacturing an inkjet head, comprising: forming a plate body including a plurality of ink chambers and a plurality of peripheral portions; forming through the plate body a plurality of ink ejection holes for each of the ink chambers; mounting a piezoelectric device on an upside of the plate body, for applying pressure to ink within the plurality of ink chambers to control ejection of the ink; mounting a holding member on an upside of the piezoelectric device, for holding the piezoelectric device between the plate body and the holding member; forming a plurality of electrodes at predetermined positions on an upside of a base piezoelectric layer; laminating a plurality of piezoelectric layers on the upside of the base piezoelectric layer, an electrode having been formed on an upside of each of the laminated piezoelectric layers; sintering the base piezoelectric layer and the laminated piezoelectric layers; polarizing the base piezoelectric layer and the laminated piezoelectric layers, respectively; removing part of the laminated piezoelectric layers and the electrodes, on at least the upside of each of the laminated piezoelectric layers, located at a position corresponding to each of peripheral portions, so that the piezoelectric device is completed; attaching an underside of the base piezoelectric layer of the piezoelectric device onto the plate body, where the plurality of ink chambers and the plurality of peripheral portions have been alternately arranged; and attaching the holding member onto a top portion of the laminated piezoelectric layers of the piezoelectric device.