MANUFACTURE FOR PIEZOELECTRIC ACTUATOR AND MANUFACTURE FOR PRINT HEAD

摘要

PROBLEM TO BE SOLVED: To process a vibration layer to thin without paying attention to a handling convenience by forming a film of the vibration layer via a first conductor layer on one face of a thin plate of a piezoelectric material, and forming a second conductor layer of a conductive material on the other face of the thin plate corresponding to a pressure chamber of a channel plate. SOLUTION: A vibration layer 44 of a glass material of a low melting point is formed in a film to one face of a sheet 50 of a piezoelectric material with a first conductor layer 51 being interposed. The sheet 50 is cut by sandblasting or the like manner from the side of the other face to be processed to a desired thickness. A second conductor layer 52 is formed to the other face of the sheet 50. A multilayer plate 53 comprising the vibration layer 44, conductor layer 52, sheet 50 and conductor layer 51 is attached via the vibration layer 44 to one face 41A of a channel plate 41 manufactured in a different process. The conductor layer 52 and sheet 50 of the multilayer plate 53 are patterned to a desired pattern. An ink-jet print head 40 is thus manufactured.