Patent ID: 7935264

Claim:
A method of manufacturing a liquid discharge head comprising a plurality of liquid chambers for pressurizing a liquid, the plurality of liquid chambers communicating with respective discharge ports, and a plurality of piezoelectric elements provided in correspondence with the plurality of liquid chambers, respectively, the plurality of piezoelectric elements each including a lower electrode, a first piezoelectric body film, a second piezoelectric body film, and an upper electrode, which are sequentially layered in the listed order from a side of the plurality of liquid chambers, the lower electrode being provided at least at a region corresponding to a portion between two of the plurality of liquid chambers, the first piezoelectric body film completely covering at least the lower electrode provided at the region, the method of manufacturing the liquid discharge head comprising: forming a first material film for forming the first piezoelectric body film on the lower electrode; forming a second material film for forming the second piezoelectric body film on the first material film, the first material film and the second material film being different from each other in etching rate in a film thickness direction; and etching the second material film at the region by using the first material film as an etching stop layer.