Patent ID: 7625071
Filing Date: 2009-12-01
Classification: B41J

Abstract:
1. A liquid ejection head, comprising: a flow channel plate in which liquid flow channels and electrical wires are formed; an actuator forming plate on which actuators for generating pressure when ejecting the liquid are formed; plate bonding parts including a first non-conductive paste through which the flow channel plate and the actuator forming plate are bonded together; first bump electrodes formed on the actuator forming plate; electrical bonding parts which bond the electrical wires and the first bump electrodes on the actuator forming plate together, the electrical bonding parts including a second non-conductive paste having same curing conditions with the first non-conductive paste; a flexible printed circuit which is connected to the electrical wires; and second bump electrodes formed on the flexible printed circuit; wherein the electrical wires are column-shaped electrical wires which pass through the liquid flow channels and connect the first bump electrodes on the actuator forming plate with the second bump electrodes on the flexible printed circuit.