| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid jet head whose durability and reliability are enhanced by strongly joining a channel forming substrate and a reservoir forming substrate, a method for manufacturing the head, and a liquid jetting device. SOLUTION: The liquid jet head has the channel forming substrate 10 forming a pressure generation chamber communicating with a nozzle opening for jetting a liquid and a communication section 13 for communicating with the pressure generation chamber, a piezoelectric element provided in one side of the channel forming substrate 10, a lead electrode made of a substrate layer and a metal layer and led out from the piezoelectric element, a reservoir forming substrate 30 having a reservoir section 31 forming a part of a reservoir by being joined to the piezoelectric element side face of the channel forming substrate 10 via an adhesion layer 35 and communicating with the communication section 13, a discontinuous metal layer 190 made up of a base layer 91 and a metal layer 92 discontinuous from the lead electrode is provided in the periphery of opening section of the communication section 31 of the channel forming substrate 10. In the discontinuous metal layer 190, the end near the communication section 13 of the base layer 91 projects from the communication section 13 side end of the metal layer 92, and the top face of the communication section side end of the base layer 91 is joined to the adhesion layer 35. COPYRIGHT: (C)2009,JPO&INPIT
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