Ink jet recording head, its manufacturing method and inkjet recording device

摘要

The present invention relates to an ink-jet recording head having a pressure generating chamber communicating with a nozzle aperture for jetting an ink droplet. A portion of the pressure generating chamber is composed of a diaphragm. An ink droplet is jetted by the displacement of a piezoelectric layer formed on the surface of the diaphragm. A connection between a lead electrode, for applying voltage to a piezoelectric element including a lower electrode, the piezoelectric layer and an upper electrode are respectively formed in an area corresponding to the pressure generating chamber. The piezoelectric element is provided in an area opposite to a passage communicating with the pressure generating chamber other than an area opposite to the pressure generating chamber. The ink-jet recording head is mounted in an ink-jet recording device and is used for recording on a recording medium.