Patent ID: 7207109
Filing Date: 2007-04-24
Classification: B41J,Y10T

Abstract:
1. A method for producing an ink jet head including, on a substrate, a piezoelectric element for discharging an ink from a discharge port, and an ink flow path communicating with said discharge port so as to correspond to said piezoelectric element, the method comprising in this order: a step of providing a selectively etchable sacrifice layer on said substrate; a step of forming an etching-resistant etching stop layer so as to cover said sacrifice layer; a step of forming a film of said piezoelectric element on said etching stop layer; a step of forming a vibrating plate on the film of said piezoelectric element; a step of providing, on said substrate, a mold material corresponding to said ink flow path; a step of providing a wall material of said ink flow path so as to cover said mold material; a step of eliminating a portion of said substrate corresponding to said piezoelectric element thereby forming a space in said substrate; and a step of eliminating said mold material thereby forming said ink flow path.