Patent ID: 7946680

Claim:
A liquid discharge head comprising: a semiconductor chip including: a semiconductor substrate; a plurality of heating elements disposed on the semiconductor substrate, the heating elements being arranged in a direction; a coating layer disposed over the semiconductor substrate, the coating layer having nozzles, each of the nozzles being arranged above a corresponding one of the heating elements; and individual channels disposed between the semiconductor substrate and the coating layer, each of the individual channels communicating with the outside and a region above the corresponding one of the heating elements, wherein ink flow paths at surfaces of the semiconductor chip have not been formed by etching the semiconductor chip; a liquid feed member having a common channel through a base, the liquid feed member being bonded to the semiconductor chip in such a manner that the common channel communicates with the individual channels of the semiconductor chip; and a seal member disposed on the coating layer of the semiconductor chip and the liquid feed member so as to seal the opening of the common channel.