| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid jet head and a liquid jet device capable of suppressing damage of a constitution member by reducing stress concentration during driving of a piezoelectric element.SOLUTION: A piezoelectric layer 28 is formed in an integrated state that covers openings of plural pressure chambers 22 in a channel formation member 15. On areas corresponding to a space between the adjacent pressure chambers in the piezoelectric layer, dents 31 which penetrate the piezoelectric layer or whose thickness is relatively thinner in the piezoelectric layer, are formed along sides of the openings of the pressure chambers. The dents are formed so as to avoid areas along corners 30 of the pressure chambers 30 in the area. |
