| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid jet head and a liquid head apparatus capable of achieving high density of a nozzle.SOLUTION: A liquid jet head includes a piezo electric element applying pressure to a pressure chamber communicating to a nozzle jetting a liquid and a lead electrode supplying a driving signal for driving the piezo electric element, which is jointed to a wiring board and the piezo electric element. The lead electrode has an uneven surface on a surface in a side of the wiring board in a connection region of the wiring board. The connection region is fixed in a circumference thereof and a part of a concavity of the uneven surface of the lead electrode by non-conductive adhesive. The lead electrode is electrically connected to the wiring board in a salient of the uneven surface of the lead electrode without the non-conductive adhesive. |
