Inkjet head and method of manufacturing inkjet head

An inkjet head comprising:

• a head chip having
• a front surface and a rear surface, the front surface being opposite the rear surface,
• driving walls composed of piezoelectric element, wherein shear deformation is caused by applying voltage so as to jet ink from nozzles,
• channels arranged alongside the driving walls alternatively to contain ink to be jetted,
• outlet ports and inlet ports respectively provided on the front surface and the rear surface of the head chip for each channel,
• driving electrodes formed on surfaces of the driving walls to apply voltage to the driving walls, and
• connection electrodes connected to the driving electrodes electrically and formed on the rear surface of the head chip;
• a wiring substrate having wiring electrodes formed thereon to apply voltage from a driving circuit to the driving electrodes through the connection electrodes, the wiring substrate being bonded on the rear surface of the head chip so as to protrude from the head chip in a direction perpendicular to a direction of a channel array so that all the channels are exposed at the rear surface of the head chip.