Patent ID: 6503407
Filing Date: 2003-01-07
Classification: B41J

Abstract:
A method for manufacturing an ink jet printer head actuator, the method comprising the steps of:forming a vibrating plate which is a metal plate having a predetermined thickness, on a substrate; laminating a protective film which is made of noble metal and serves as an etching ceasing layer, on the vibrating plate; laminating a chamber plate which is made of metal, on the protective thin film; coating a photoresist layer on a surface of the chamber plate; exposing and developing the coated photoresist layer; washing an exposed portion of the -photoresist layer to remove an unnecessary portion; etching the chamber plate to a predetermined size by supplying etching solution to the chamber plate which is exposed through a part where the photoresist layer is partially removed; removing the photoresist layer which is left on the chamber plate; and removing the substrate and depositing a piezoelectric element and an electrode onto the vibrating plate.