Patent ID: 6722035
Filing Date: 2004-04-20
Classification: B41J,H05K,Y10S,Y10T

Abstract:
A method of manufacturing a substrate of an ink ejecting device, the method comprising the steps of:preparing a substrate plate such that at least a part of the substrate plate is formed of piezoelectric ceramics; forming first grooves in the substrate plate that define ejecting channels that eject ink; forming at least one second groove on each side of each of the first grooves to define non-ejecting channels and actuator walls between the first grooves and the second grooves; forming a conductive layer over internal surfaces of the first grooves and the second grooves and over the actuator walls; and removing a portion of the conductive layer that is formed at a bottom surface of each of only the second grooves without removing any other portions of the conductive layer formed over the first grooves and the second grooves during the step of removing.