Patent ID: 9138997
Filing Date: 2015-09-22
Classification: B41J,B81B,C04B,Y10T

Abstract:
1. A method for manufacturing a liquid ejecting head which includes a pressure generating chamber communicating with a nozzle opening that ejects liquid, a vibration plate configuring a part of the pressure generating chamber, a first electrode formed on the vibration plate, a piezoelectric body formed on the first electrode, and a second electrode formed on the piezoelectric body, the method comprising: forming the first electrode on the vibration plate; forming the piezoelectric body on the first electrode; forming a first layer having a greater thermal expansion rate than the piezoelectric body and the same conductivity as the second electrode, on the piezoelectric body; forming a sacrifice layer on the first layer; heating the vibration plate, the first electrode, the piezoelectric body, the first layer and the sacrifice layer to oxidize the sacrifice layer; cooling the vibration plate, the first electrode, the piezoelectric body, the first layer and the sacrifice layer after the heating; and forming a second layer having the same conductivity as the second electrode on the first layer and the sacrifice layer, after the cooling.