| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a liquid discharge head, a liquid discharge head unit, and a liquid discharge device capable of improving adhesive force and suppressing breaking due to entry of liquid and adhesive from becoming a foreign matter.SOLUTION: A first substrate having a silicon oxide film 50 formed on one surface on which a first channel 12 communicating with a nozzle opening that discharges liquid is formed, and having a piezoelectric element 300 formed on the surface on which the silicon oxide film 50 is formed, and a second substrate 30 each includes a bonded area S in which surfaces on which silicon oxide films 50 and 32 are formed, respectively are bonded to each other via adhesive 35. The bonded area S includes: a second bonded area S2 where the silicon oxide films 50 and 32 are bonded to each other via the adhesive 35; and a first bonded area S1 provided with a multilayer body 400 that is provided near the silicon oxide film 50 of the first substrate, that has a layer structure identical to the piezoelectric element 300 and an interconnection connected to the piezoelectric element 300, and that is not electrically connected to at least the piezoelectric element 300 and the interconnection.</p> |
