| 摘要 |
<p>Disclosed is a liquid-jet head and a Liquid-jet apparatus, which are capable of reliably supplying a driving voltage to a driving IC, increasing the number of arrays of nozzle orifices , and being made small-sized. The liquid-jet head comprises a passage-forming substrate 10 in which a pressure generating chamber 12 communicating with an nozzle orifice 12 is defined, and piezoelectric elements 300; each piezoelectric element 300 being provided in the passage-forming substrate 10 via a vibration plate, wherein a joint plate 30, on which a driving IC 110 and a wiring pattern 120 are provided, to an upper portion of which is connected an external wiring, is joined to the piezoelectric element side of the passage-forming substrate 10, a plurality of driving voltage supply pads 113, to which a driving voltage to be distributed to each piezoelectric element 300 is supplied, are provided on the driving IC 110 along a long direction of the driving IC 110, the adjacent driving voltage supply pads 113 being electrically connected by a connection wiring 114 formed of a conductive wire, and the driving voltage supply pad 113 in an end portion of the driving IC 110 in the long direction thereof and the wiring pattern 120 being electrically connected by the connection wiring 114. <IMAGE> <IMAGE></p> |
