Patent ID: 6070310
Filing Date: 2000-06-06
Classification: B41J,H01L,Y10T

Abstract:
A method for producing an ink jet head comprising the steps of:forming an actuator board having a parallelepiped shape with a first plane and a second plane, which is made of piezoelectric ceramic material;forming a plurality of piezoelectric walls by making grooves in the first plane of the actuator board in a longitudinal direction thereof;forming conductive layers made of metallic thin film on a part of both side surfaces of the piezoelectric walls, a first end plane of the actuator board, and an entire surface of the second plane of the actuator board so that the conductive layers are connected with each other;forming a plurality of conductive patterns, each of which is conductably connected with the conductive layer formed on the side surfaces of the piezoelectric walls, on the second plane of the actuator board by forming first grooves in the conductive layer formed on the first end plane of the actuator board in a vertical direction in correspondence with each of the piezoelectric walls and forming second grooves in the conductive layer formed on the second plane of the actuator board so as to be continuous to the first grooves;electrically dividing the conductive layer on the second plane of the actuator board into the conductive patterns and another remaining part of the conductive layer by forming a third groove intersecting the second grooves;adhering a cover plate onto the first plane of the actuator board so as to cover the piezoelectric walls; andadhering a nozzle plate onto a second end plane of the actuator board, the nozzle plate being provided with nozzles in correspondence to ejection channels each formed between the piezoelectric walls.