Patent ID: 6863834

Claim:
A method for manufacturing a liquid ejecting head, in which liquid flow paths are defined by combining an element substrate having a plurality of discharge energy generating elements for applying discharge energy to liquid with a nozzle member having a plurality of liquid discharge nozzle grooves and an opening communicating with said nozzle grooves, comprising the steps of: preparing at least one material common to said element substrate having a first surface of < 110 > crystal face orientation as a base material of said nozzle member; forming etching mask layers on said first surface of the base material of said nozzle member for forming said nozzle grooves and on a second surface opposite to said first surface, respectively; before patterning said mask layer on said first surface of the base material, forming a recessed portion corresponding to said opening in said second surface of the base material by patterning said mask layer on said second surface of the base material and by effecting etching in said second surface via said mask layer of said second surface; and after forming said recessed portion, forming said nozzle grooves and said opening in the base material for communicating said recessed portion with said nozzle grooves, by patterning said mask layer on said first surface of the base material and by effecting etching in said first surface and said recessed portion via said mask layer of said first surface and said mask layer of said second surface.