Patent ID: 7448731

Claim:
A liquid droplet ejecting head comprising: a channel substrate in which a nozzle, which ejects liquid droplets, and a pressure chamber, which is partitioned off by a pressure chamber dividing wall and communicated with the nozzle and filled with a liquid, are formed; a piezoelectric element substrate having a diaphragm that forms a part of the pressure chamber and a piezo electric element that displaces this diaphragm; a liquid pool chamber that is formed opposite from the pressure chamber with the piezoelectric element substrate being disposed therebetween and which pools liquid supplied to the pressure chamber; an upper substrate disposed opposite from the pressure chamber with the piezoelectric element substrate being disposed therebetween so as to be separated from and face the piezoelectric element substrate; and a dividing wall component provided, when viewing the channel substrate in plane view, along a position corresponding to the pressure chamber dividing wall between the piezoelectric element substrate and the upper substrate so as to contact the piezoelectric element substrate and the upper substrate.