Patent ID: 6758554
Filing Date: 2004-07-06
Classification: B41J,Y10T

Abstract:
A liquid jetting head, comprising:a first substrate, which defines a plurality of pressure generating chambers, the first substrate including a vibration plate which forms a first surface of the first substrate, and formed with a first through hole; a plurality of piezoelectric elements, each provided on the vibration plate so as to associate with one of the pressure generating chambers, each piezoelectric element comprised of an upper electrode, a lower electrode and a piezoelectric layer provided between the upper electrode and the lower electrode; a second substrate, bonded onto at least the first surface of the first substrate, the second substrate formed with a second through hole communicated with the first through hole; a communicating portion, at which the first through hole and the second through hole are connected; and a laminated film, including a coating layer comprised of a resin material, the laminated film provided on an inner wall face of the communicating portion.