| 摘要 |
Disclosed are a liquid-jet head that is capable of arraying pressure generating chambers in high density and achieving miniaturization thereof and a liquid-jet apparatus. In the liquid-jet head, a joining plate 30 joined onto piezoelectric elements 300 side of a passage-forming substrate 10 are provided, on which a drive circuit 110 for driving the piezoelectric elements 300 is mounted, a penetrated hole 33 penetrating the joining plate 30 in a thickness direction is provided in a portion corresponding to a space between rows of pressure generating chambers 12 of the joining plate 30, extracted wirings 90 extracted from individual piezoelectric elements 300 are extended to a portion corresponding to the penetrated hole 33, and the extracted wirings 90 and a drive circuit 110 are electrically connected to each other with conductive wires 120 extended through the penetrated hole 33. Thus, the area of the penetrated hole 33 is suppressed to be small.
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