Patent ID: 6502930
Filing Date: 2003-01-07
Classification: B41J

Abstract:
An ink-jet recording head comprising:a passage-forming substrate having a silicon layer consisting of single crystal silicon, in which a pressure generating chamber communicating with a nozzle orifice is defined; and a piezoelectric element for generating a pressure change in the pressure generating chamber, the piezoelectric element being provided on a region facing said pressure generating chamber via a vibration plate constituting a part of said pressure generating chamber, wherein said pressure generating chamber is formed so as to open to one surface of said passage-forming substrate and not to penetrate therethrough, an etching stop surface, at which anisotropic etching has stopped, defines at least a bottom surface of said pressure generating chamber, the bottom surface facing to said one surface, without establishing communication between said pressure generating chamber and another flow passage via the bottom surface, and said piezoelectric element is provided at said one surface side of said passage-forming substrate by a film formed by film deposition technology and a lithography method.