Patent ID: 7585060

Claim:
A liquid ejecting head comprising: a passage-forming substrate having a nozzle opening, and a pressure-generating chamber communicating with the nozzle opening; a plurality of pressure-generating elements provided on a surface of the passage-forming substrate with a diaphragm interposed therebetween, the pressure-generating elements having electrodes and causing pressure change in the pressure-generating chamber; and an IC chip mounted on the surface of the passage-forming substrate with the pressure-generating elements, the IC chip including a semiconductor substrate, a driver circuit provided at a surface of the semiconductor substrate, the driver circuit driving the pressure-generating elements, a first pad provided on a surface of the semiconductor substrate opposite to a surface facing the passage-forming substrate, the first pad being electrically connected to the driver circuit, an external wiring pattern electrically connected to the first pad, a second pad provided on the surface of the semiconductor substrate facing the passage-forming substrate, the second pad being electrically connected to the electrodes of the pressure-generating elements, and a through electrode penetrating through the semiconductor substrate, the through electrode being connected to the second pad, wherein the electrodes of the pressure-generating elements include individual electrodes, and at least the individual electrodes are electrically connected to the driver circuit via the through electrode.