Patent ID: 6931702

Claim:
A method for manufacturing an inkjet recording head, said inkjet recording head including a plurality of nozzles, a two-dimensional array of a plurality of pressure chambers each communicating with a common ink reservoir and a corresponding one of said nozzles, a diaphragm constituting part of walls of said pressure chambers, and a plurality of piezoelectric elements coupled to said diaphragm so as to correspond to said pressure chambers, said method comprising: temporarily bonding a piezoelectric plate onto a substrate; forming a mask having a piezoelectric element array mask pattern on said piezoelectric plate, said piezoelectric element array mask pattern includes a plurality of piezoelectric element mask patterns; sandblasting said piezoelectric plate through said mask to thereby form a piezoelectric element array including a plurality of separate piezoelectric elements; bonding said piezoelectric element array onto said diaphragm as a unit; and removing said substrate from said piezoelectric element array after said sandblasting.